Datasheet MSP3467G, MSP3457G, MSP3447G, MSP3417G, MSP3427G Datasheet (Micronas Intermetall)

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MSP 34x7G Multistandard Sound Processor Family

Edition Jan. 19, 2001 6251-535-2PD

PRELIMINARY DATA SHEET

MICRONAS

Page 2

MSP 34x7G PRELIMINARY DATA SHEET

Contents

Page Section Title

5 1. Introduction

6 1.1. Features of the MSP 34x7G Family and Differences to MSPD 6 1.2. MSP 34x7G Version List 7 1.3. MSP 34x7G Versions and their Application Fields

8 2. Functional Description

9 2.1. Architecture of the MSP 34x7G Family 9 2.2. Sound IF Processing 9 2.2.1. Analog Sound IF Input 9 2.2.2. Demodulator: Standards and Features 10 2.2.3. Preprocessing of Demodulator Signals 10 2.2.4. Automatic Sound Select 10 2.2.5. Manual Mode 12 2.3. Preprocessing for SCART 12 2.4. Source Selection and Output Channel Matrix 12 2.5. Audio Baseband Processing 12 2.5.1. Automatic Volume Correction (AVC) 12 2.5.2. Quasi-Peak Detector 13 2.6. SCART Signal Routing 13 2.6.1. SCART DSP In and SCART Out Select 13 2.6.2. Stand-by Mode 13 2.7. Digital Control I/O Pins and Status Change Indication 13 2.8. Clock PLL Oscillator and Crystal Specifications

14 3. Control Interface

14 3.1. I

C Bus Interface 14 3.1.1. Internal Hardware Error Handling 15 3.1.2. Description of CONTROL Register 15 3.1.3. Protocol Description

16 3.1.4. Proposals for General MSP 34x7G I

C Telegrams 16 3.1.4.1. Symbols 16 3.1.4.2. Write Telegrams 16 3.1.4.3. Read Telegrams 16 3.1.4.4. Examples

16 3.2. Start-Up Sequence: Power-Up and I

C-Controlling 16 3.3. MSP 34x7G Programming Interface 16 3.3.1. User Registers Overview 18 3.3.2. Description of User Registers 19 3.3.2.1. STANDARD SELECT Register 19 3.3.2.2. Refresh of STANDARD SELECT Register 19 3.3.2.3. STANDARD RESULT Register

21 3.3.2.4. Write Registers on I 22 3.3.2.5. Read Registers on I2C Subaddress 11 23 3.3.2.6. Write Registers on I2C Subaddress 12 29 3.3.2.7. Read Registers on I2C Subaddress 13

C Subaddress 10

hex hex hex hex

30 3.4. Programming Tips 30 3.5. Examples of Minimum Initialization Codes

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PRELIMINARY DATA SHEET

Contents, continued

Page Section Title

30 3.5.1. B/G-FM (A2 or NICAM) 30 3.5.2. BTSC-Stereo 30 3.5.3. BTSC-SAP with SAP at Loudspeaker Channel 31 3.5.4. FM-Stereo Radio 31 3.5.5. Automatic Standard Detection 31 3.5.6. Software Flow for Interrupt driven STATUS Check

33 4. Specifications

33 4.1. Outline Dimensions 34 4.2. Pin Connections and Short Descriptions 36 4.3. Pin Descriptions 38 4.4. Pin Configurations 39 4.5. Pin Circuits 41 4.6. Electrical Characteristics 41 4.6.1. Absolute Maximum Ratings 42 4.6.2. Recommended Operating Conditions 42 4.6.2.1. General Recommended Operating Conditions 42 4.6.2.2. Analog Input and Output Recommendations 43 4.6.2.3. Recommendations for Analog Sound IF Input Signal 44 4.6.2.4. Crystal Recommendations 45 4.6.3. Characteristics 45 4.6.3.1. General Characteristics 46 4.6.3.2. Digital Inputs, Digital Outputs 47 4.6.3.3. Reset Input and Power-Up 48 4.6.3.4. I 49 4.6.3.5. Analog Baseband Inputs and Outputs, AGNDC 50 4.6.3.6. Sound IF Input 50 4.6.3.7. Power Supply Rejection 51 4.6.3.8. Analog Performance 52 4.6.3.9. Sound Standard Dependent Characteristics

C Bus Characteristics

MSP 34x7G

56 5. Appendix A: Overview of TV Sound Standards

56 5.1. NICAM 728 57 5.2. A2 Systems 58 5.3. BTSC-Sound System 58 5.4. Japanese FM Stereo System (EIA-J) 59 5.5. FM Satellite Sound 59 5.6. FM-Stereo Radio

60 6. Appendix B: Manual/Compatibility Mode

60 6.1. Demodulator Write and Read Registers for Manual/Compatibility Mode 61 6.2. DSP Write and Read Registers for Manual/Compatibility Mode 62 6.3. Manual/Compatibility Mode: Description of Demodulator Write Registers 62 6.3.1. Automatic Switching between NICAM and Analog Sound 62 6.3.1.1. Function in Automatic Sound Select Mode 62 6.3.1.2. Function in Manual Mode 64 6.3.2. A2 Threshold 64 6.3.3. Carrier-Mute Threshold

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MSP 34x7G PRELIMINARY DATA SHEET

Contents, continued

Page Section Title

65 6.3.4. Register AD_CV 67 6.3.5. Register MODE_REG 68 6.3.6. FIR-Parameter, Registers FIR1 and FIR2 68 6.3.7. DCO-Registers 70 6.4. Manual/Compatibility Mode: Description of Demodulator Read Registers 70 6.4.1. NICAM Mode Control/Additional Data Bits Register 70 6.4.2. Additional Data Bits Register 70 6.4.3. CIB Bits Register 71 6.4.4. NICAM Error Rate Register 71 6.4.5. PLL_CAPS Readback Register 71 6.4.6. AGC_GAIN Readback Register 71 6.4.7. Automatic Search Function for FM-Carrier Detection in Satellite Mode 72 6.5. Manual/Compatibility Mode: Description of DSP Write Registers 72 6.5.1. Additional Channel Matrix Modes 72 6.5.2. Volume Modes of SCART1 Output 72 6.5.3. FM Fixed Deemphasis 72 6.5.4. FM Adaptive Deemphasis 72 6.5.5. NICAM Deemphasis 73 6.5.6. Identification Mode for A2 Stereo Systems 73 6.5.7. FM DC Notch 73 6.6. Manual/Compatibility Mode: Description of DSP Read Registers 73 6.6.1. Stereo Detection Register for A2 Stereo Systems 73 6.6.2. DC Level Register 74 6.7. Demodulator Source Channels in Manual Mode 74 6.7.1. Terrestric Sound Standards 74 6.7.2. SAT Sound Standards 74 6.8. Exclusions of Audio Baseband Features 74 6.9. Compatibility Restrictions to MSP 34x7D

76 7. Appendix D: Application Information

76 7.1. Phase Relationship of Analog Outputs 77 7.2. Application Circuit

78 8. Appendix E: MSP 34x7G Version History

78 9. Data Sheet History

License Notice:

“Dolby Pro Logic” is a trademark of Dolby Laboratories.

Supply of this implementation of Dolby Technology does not convey a license nor imply a right under any patent, or any other industrial or intellectual property right of Dolby Laboratories, to use this implementation in any finished end-user or ready-to-use final product. Companies planning to use this implementation in products must obtain a license from Dolby Laboratories Licensing Corporation before designing such products.

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PRELIMINARY DATA SHEET MSP 34x7G

Multistandard Sound Processor Family

Release Note: Revision bars indicate significant changes to the previous edition. The hardware and software description in this document is valid for the MSP 34x7G version B8 and following versions.

1. Introduction

The MSP 34x7G family of single-chip Multistandard Sound Processors covers the sound processing of all analog TV standards worldwide, as well as the NICAM digital sound standards. The full TV sound processing, starting with analog sound IF signal-in, down to processed analog AF-out, is performed in a single chip.

Figure 1–1 shows a simplified functional block diagram of the MSP 34x7G.

These TV sound processing ICs include versions for processing the multichannel television sound (MTS) signal conforming to the standard recommended by the Broadcast Television Systems Committe e (BTSC). The DBX noise reduction, or alternatively, Micronas Noise Reduction (MNR) is performed alignment free.

Other processed standards are the Japanese FM-FM multiplex standard (EIA-J) and the FM-Stereo-Radio standard.

Current ICs have to perform adjustment p rocedures in order to achieve good stereo separatio n for BTSC and

EIA-J. The MSP 34x7G has optimum stereo performance without any adjustments.

All MSP 34xxG versions are pin compatible to the MSP 34xxD. Only minor modifications are necessary to adapt a MSP 34xxD controlling software to the MSP 34xxG. The MSP 34x7G further simplifies controlling software. St andard selection requi res a single

C transmission only.

I Note: The MSP 34x7G version has reduced control

registers and less functional pins. The remaining registers are software-compatible to the MSP 34x0G. The pinning is compatible to the MSP 34x0G.

The MSP 34x7G has built-in automatic functions: The IC is able to detect the actual sound standard automatically (Automatic Standard Detection). Furthermore, pilot levels and identification sign als can be evaluated internally with subsequent switching between mono/ stereo/bilingual; no I

C interaction is ne cessar y (Auto-

matic Sound Selectio n) . The MSP 34x7G can handle very high FM deviation s

even in conjunction with NICAM processing. This is especially impor tant for the introduction of NICAM in China.

The ICs are produced in submicron CMOS technology. The MSP 34x7G is available in the following packages: PSDIP52 and PMQFP44.

Sound IF1

SCART1

MONO

SCART

DSP

Input

Select

De-

modulator

ADC

Pre-

processing

Prescale

Fig. 1–1: Simplified functional block diagram of MSP 34x7G

Loud-

speaker

Sound

Processing

Source Select

DAC

DACADC

SCART

Output

Select

Loudspeaker

SCART1

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MSP 34x7G PRELIMINARY DATA SHEET

1.1. Features of the MSP 34x7G Family and Differences to MSPD

Feature (Features not available for MSPD are shaded gray.) 3407 3417 3427 3447 3457 3467

Standard Selection with single I Automatic Standard Detection of terrestrial TV standards X X X X X X

C transmission X X X X X X

Automatic Sound Selection (mono/stereo/bilingual), new registers MODUS, STATUS Automatic Carrier Mute function X X X X X X Interrupt output programmable (indicating status change) Loudspeaker channel with volume X X X X X X AVC: Automatic Volume Correction X X X X X X One Stereo SCART (line) input, one Mono input; one Stereo SCART output X X X X X X Complete SCART in/out switching matrix X X X X X X All analog Mono sound carriers including AM-SECAM L X X All analog FM-Stereo A2 and satellite standards X X X All NICAM standards XX Simultaneous demodulation of (very) high-deviation FM-Mono and NICAM Adaptive deemphasis for satellite (Wegener-Panda, acc. to ASTRA specification) X X X X Demodulation of the BTSC multiplex signal and the SAP channel Alignment free digital DBX noise reduction for BTSC Stereo and SAP Alignment free digital Micronas Noise Reduction (MNR) for BTSC Stereo and SAP BTSC stereo separation (MSP 3427/47G also EIA-J) significantly better than spec. SAP and stereo detection for BTSC system

X X X X X X

X X X X

X X

X X X

X X X X X X X X X

Korean FM-Stereo A2 standard X X X X X Alignment-free Japanese standard EIA-J Demodulation of the FM-Radio multiplex signal

X X X X X X

1.2. MSP 34x7G Version List

Version Status Description

MSP 3407G available FM Stereo (A2) Version MSP 3417G available NICAM and FM Stereo (A2) Version MSP 3427G not confirmed NTSC Version (A2 Korea, BTSC with Micronas Noise Reduction (MNR), Japanese EIA-J system) MSP 3447G not confirmed NTSC Version (A2 Ko rea, BTSC with DBX noise reduction, Japanese EIA-J system) MSP 3457G not confirmed Global Stereo Version (all sound standards) MSP 3467G not confirmed Global Mono Version (all sound standards)

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PRELIMINARY DATA SHEET MSP 34x7G

1.3. MSP 34x7G Versions and their Application Fields

Table 1–1 provides an overview of TV sound standards that can be processed by the MSP 34x7G family. In addition, the MSP 34x7G is able to handle the FM-

multimedia receiver covering all TV sound standards together with te rrestr ial/ cable and satel lite radio sou nd can be built.

Radio standard. With the MSP 34x7G, a complete

Table 1–1: TV Stereo Sound Standards covered by the MSP 34x7G IC Family (details see Appendix A)

MSP Version TV-

3407

3417

System

B/G

L 6.5/5.85 AM-Mono/NICAM SECAM-L France I 6.0/6.552 FM-Mono/NICAM PAL UK, Hong Kong

D/K

3457

Satellite

Position of Sound Carrier /MHz

5.5/5.7421875 FM-Stereo (A2) PAL Germany

5.5/5.85 FM-Mono/NICAM PAL Scandinavia, Spain

6.5/6.2578125 FM-Stereo (A2, D/K1) SECAM-East Slovak. Rep.

6.5/6.7421875 FM-Stereo (A2, D/K2) PAL currently no broadcast

6.5/5.7421875 FM-Stereo (A2, D/K3) SECAM-East Poland

6.5/5.85 FM-Mono/NICAM (D/K, NICAM) PAL China, Hungary

6.5

7.02/7.2

7.38/7.56 etc.

4.5/4.724212 FM-Stereo (A2) NTSC Korea

Sound Modulation

FM-Mono FM-Stereo

Color System

PAL

Broadcast e.g. in:

Europe Sat. ASTRA

M/N

3427, 3447

FM-Radio 10.7 FM-Stereo Radio USA, Europe

3467 All standards as above, but Mono demodulation only.

SAW Filter

Tuner

4.5 FM-FM (EIA-J) NTSC Japan

4.5 BTSC-Stereo + SAP NTSC, PAL USA, Argentina

33 34 39 MHz 4.5 9 MHz

Sound IF Mixer

Vision Demodulator

SCART Input

Mono

SCART1

MSP 34x7G

SCART1

Loudspeaker

SCART Output

Composite Video

Fig. 1–2: Typical MSP 34x7G application

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ANA_IN1+

AGC

Standard Selection

DEMODULATOR

(incl. Carrier Mute)

Decoded Standards:

− NICAM

− A2

− AM

− BTSC

− EIA-J

− SAT

− FM-Radio

Deemphasis:

50/75 µs,

J17

DBX/MNR

Panda1

Deemphasis

J17

Standard

and Sound

Detection

FM/AM

Prescale

(0E

NICAM

Prescale

(10

I2C

Read

Sound Select

)

hex

)

hex

Automatic

FM/AM

Stereo or A/B

Stereo or A

Stereo or B

2. Functional Description

Loud-

speaker

Channel

Matrix

(08

AVC

)

hex

)

hex

Volume

(00

)(29

hex

DACM_L

DACM_R

MSP 34x7G PRELIMINARY DATA SHEET

Beeper

(14

)

hex

Source Select

Quasi-Peak

Channel

Matrix

SCART

(0D

)

hex

Prescale

SCART1 Channel

Matrix

Quasi-Peak

)

(0C

hex

(0A

)(07

hex

Detector

Volume

hex

I2C

Read

(19

hex

(1A

hex

)

SCART DSP Input Select

(13

)

hex

SC1_IN_L SC1_IN_R

MONO_IN

Fig. 2 –1: Signal flow block diagram of the MSP 34x7G (input and output names correspond to pin names).

) )

SCART1_L/R

SC1_OUT_L

SC1_OUT_R

SCART Output Select

)

(13

hex

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PRELIMINARY DATA SHEET MSP 34x7G

2.1. Architecture of the MSP 34x7G Family

Fig. 2–1 on page 8 shows a simplified block diagram of the IC. The block diagram contains all features of the MSP 3457G. Other members of the MSP 34x7G family do not have the complete set of features: The demodulator handles only a subset of the standards presented in the demodulator block; NICAM processing is only possible in the MSP 3417G and MSP 3457G (see dashed block in Fig. 2–1).

2.2. Sound IF Processing

2.2.1. Analog Sound IF Input

The input pins ANA_ IN1+ and ANA _IN− offer the possibility to connect sound IF (SIF) sources to the MSP 34x7G. The analog-to-digital conversion of the sound IF signal is done by an A/D-conver ter. An analog automatic gain circuit (AGC) allows a wide range of input levels. The high-pass filter formed by the coupling capacitor at pin ANA_IN1+ (see Section 7. “Appendix D: Application Information” on page 76) is sufficient in most cases to suppress video components. Some combinations of SAW filters and sound IF mixer ICs, however, show large picture components on their outputs. In this case, further filtering is recommended.

BTSC-Mono + SAP: Detection and FM demodulation of the aural carrier resulting in the MTS/MPX signal. Detection and evaluation of the pilot car rier, detection and FM demodulat ion of the SA P-sub carr ier. Processing of the DBX noise reduction or Micronas Noise Reduction (MNR).

Japan Stereo: Detection and FM demodulation of the aural carrier resulting in the MPX signal. Demodulation and evaluation of the identification signal and FM demodulation of the (L-R)-carrier.

FM-Satellite Sound: Demodulation of one or two FM carriers. Processi ng of high-deviation mono or na rrow bandwidth mono, stereo, or bilingual satellite sound according to the ASTRA specification.

FM-Stereo-Radio: Detection and FM demodulation of the aural carrier resu lting in the MPX si gnal. Detecti on and evaluation of the pilot carrier and AM demodulation of the (L-R)-carrier.

The demodulator blocks of all MSP 34x7G versions have identical user interfaces. Even completely different systems like the BTSC and NICAM systems are controlled the same way. Standards are selected by means of MSP Standard Cod es. Automatic processes handle standard detection and identification without controller interaction. The key features of the MSP 34x7G demodulator blocks are

2.2.2. Demodulator: Standards and Features

The MSP 34x7G is able to demodulate all TV sound standards worldwide inc luding the digital NICAM system. Depending on the MSP 34x7G version, the following demodulation modes can be performed:

A2-Systems: Detectio n and demodu lation of two separate FM carriers ( FM1 and FM2), demodulation and evaluation of the identification signal of carrier FM2.

NICAM-Systems: Demodulation and decoding of the NICAM carrier, detection and demodulation of the analog (FM or AM) carrier. For D/K-NICAM, the FM carrier may have a maximum deviation of 384 kHz.

Very high deviation FM-Mono: Detection and robust demodulation of on e FM carr ier with a maximum deviation of 540 kHz.

BTSC-Stereo: Detection and FM demodulation of the aural carrier resulting in the MTS/MPX signal. Detection and evaluation of the pilot carr ier, AM demodulation of the (L-R)-carr ier and detec tion of the SA P subcarrier. Processing of the DBX noise reduction or Micronas Noise Reduction (MNR).

Standard Selection: The controlling of the de modula tor is minimized: All parameters, such as tuning frequencies or filter bandwidth, are adjusted automatically by transmitting one single value to the STANDARD SELECT reg ister. For all standards, specific MSP standard codes are defined.

Automatic Standard Detection: If the TV sound standard is unknown, the MSP 34x7G can automatically detect the actual standard, switch to that standard, and respond the actual MSP standard code.

Automatic Carrier Mute: To prevent noise effects or FM identification problems in the absence of an FM carrier, the MSP 34x7G offers a configurable carrier mute feature, which is activated automatically if th e T V sound standard is selected by means of the STANDARD SELECT register. If no FM carrier is detected at one of the two MSP demodulator channels, the corresponding demodulator output is muted. This is indicated in the STATUS register.

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MSP 34x7G PRELIMINARY DATA SHEET

2.2.3. Preprocessing of Demodulator Signals

The NICAM signals must be processed by a deemphasis filter and adjusted in level. The analog demodulated signals must b e processed by a deemphas is filter, adjusted in level, and dematrixed. The correct deemphasis filters are already selected by setting th e standard in the STANDARD SELECT register. The level adjustment has to be done by means of the FM/ AM and NICAM prescale registers. The necessary dematrix function depends on the selected sound standard and the actual broadcasted sound mode (mono, stereo, or bilingual). It can be manually set by the FM Matrix Mode register or automatically by the Automatic Sound Selection.

2.2.4. Automatic Sound Select

In the Automatic Sound Select mode, the dematrix function i s aut om a t ica l ly s el ec t ed ba se d on th e id ent if i cation information in the ST ATUS register. No I

C interaction is necessary when the broadcasted sound mode changes (e.g. from mono to stereo).

The demodulator sup ports the identification ch eck by switching between mono-compatible standards (standards that have the same FM-Mon o carrier) automatically and non-audible. If B/G-FM or B/G-NICAM is selected, the MSP will switch between these standards. The same action is performed for the standards: D/K1-FM, D/K2-FM, D/K3-FM and D/K-NICAM. Switching is only d one in th e abse nce of a ny ste reo or bilingual identification. If identification is found, the MSP keeps the detected standard.

In case of high bit-error rates, the MSP 34x7G automatically falls back from digital NI CAM sound to analog FM or AM mono.

– “Stereo or A” channel: Analog or digital mono

sound, stereo if available. In case of bilingual broadcast, it contains language A (on left and right).

– “Stereo or B” channel: Analog or digital mono

sound, stereo if available. In case of bilingual broadcast, it contains language B (on left and right).

Fig. 2–2 and Table 2–2 show the source channel assignment of the demodulated signals in case of Automatic Sound Select mode for all sound standards.

Note: The analog primar y input channel contains the signal of the mono FM/AM c arrie r or the L+R sig nal of the MPX carrier. The secondary input channel contains the signal of the 2nd FM c arrier, the L-R signal of the MPX carrier, or the SAP signal.

Source Select

LS Ch. Matrix

Output-Ch. matrices must be set once to stereo.

primary channel

secondary channel

NICAM A

NICAM B

FM/AM

Prescale

NICAM

Prescale

Automatic

Sound Select

FM/AM

Stereo or A/B

Stereo or A

Stereo or B

Fig. 2–2: Source channel assignment of demodulated signals in Automatic Sound Select Mode

2.2.5. Manual Mode

Fig. 2–3 shows the source channel assignment of demodulated signals in ca se of manual mode. If manual mode is required, more information can be found in Section 6.7. “Demodulator Source Channels in Manual Mode” on page 74.

Table 2–1 summarizes all actions that take place when Automatic Sound Select is switched on.

To provide more fl exibility, the Automatic Sound Select block prepares four different source channels of demodulated sound (Fi g. 2–2). By choosing one of th e four demodulator channels, the p referred sound mode can be selected for each of the output chann els (loudspeaker, headphone, etc.). This is done by means of

primary channel

secondary channel

NICAM A

NICAM B

FM/AM

Prescale

NICAM

Prescale

FM-Matrix

FM/AM

NICAM

(Stereo or A/B)

Source Select

LS Ch. Matrix

Output-Ch. matrices must be set according to the standard.

the Source Select registers. The following source chan nels of demodulated sound

are defined:

Fig. 2–3: Source channel assignment of demodulated signals in Manual Mode

– “FM/AM” channel: Analog mono sound, stereo if

available. In case of NICAM, analog mono only (FM or AM mono).

– “Stereo or A/B” channel: Analog or digital mono

sound, stereo if available. In case of bilingual broadcast, it contains both languages A (left) and B (right).

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PRELIMINARY DATA SHEET MSP 34x7G

Table 2–1: Performed actions of the Automatic Sound Selection

Selected TV Sound Standard Performed Actions

B/G-FM, D/K-FM, M-Korea, and M-Japan

B/G-NICAM, L-NICAM, I-NICAM, D/K-NICAM

Evaluation of the identification signal and automatic switching to mono, stereo, or bilingual. Preparing four demodulator source channels according to Table 2–2.

Evaluation of NICAM-C-bits and automatic switching to mono, stereo, or bilingual. Preparing four demodulator source channels according to Table 2–2.

In case of bad or no NICAM reception, the MSP switches automatically to FM/AM mono and switches back to NICAM if possible. A hys teresis prevents periodical switching.

B/G-FM, B/G-NICAM or D/K1-FM, D/K2-FM, D/K3-FM,

and D/K-NICAM

Automatic searching for stereo/bilingual-identification in case of mono transmission. Automatic and nonaudible changes between Dual-FM and FM-NICAM standards while listening to the basic FM-mono sound carrier. Example: If starting with B/G-FM-Stereo, there will be a periodical alternation to B/G-NICAM in the absence of FM-Stereo/Bilingual or NICAM-identification. Once an identification is detected, the MSP keeps the corresponding standard.

BTSC-STEREO, FM Radio Evaluation of the pilot signal and automatic switching to mono or stereo. Preparing four demodulator

source channels according to Table2–2. Detection of the SAP carrier.

M-BTSC-SAP In the absence of SAP, the MSP switches to BTSC-stereo if available. If SAP is detected, the MSP

switches automatically to SAP (see Table 2–2).

Table 2–2: Sound modes for the demodulator source channels with Automatic Sound Select

Source Channels in Automatic Sound Select Mode

Broadcasted Sound Standard

Selected MSP Standard

Code

Broadcasted Sound Mode

FM/AM

(source select: 0)

Stereo or A/B

(source select: 1)

Stereo or A

(source select: 3)

Stereo or B

(source select: 4)

M-Korea B/G-FM D/K-FM M-Japan

B/G-NICAM L-NICAM I-NICAM D/K-NICAM D/K-NICAM

(with high deviation FM)

03, 08 04, 05, 07, 0B 30

08, 03 09 0A

, 05

0B, 04 0C, 0D

MONO Mono Mono Mono Mono

STEREO Stereo Stereo Stereo Stereo BILINGUAL:

Languages A and B Right = B NICAM not available or

analog Mono analog Mono analog Mono analog Mono

Left = A Right = B

error rate too high MONO analog Mono NICAM Mono NICAM Mono NICAM Mono STEREO analog Mono NICAM Stereo NICAM Stereo NICAM Stereo BILINGUAL:

Languages A and B

analog Mono Left = NICAM A

Right = NICAM B

NICAM A NICAM B

20, 21 MONO Mono Mono Mono Mono

STEREO Stereo Stereo Stereo Stereo

20 MONO + SAP Mono Mono Mono Mono

BTSC

21 MONO + SAP Left = Mono

STEREO + SAP Stereo Stereo Stereo Stereo

Right = SAP

STEREO + SAP Left = Mono

Right = SAP

Left = Mono Right = SAP

Mono SAP

FM Radio 40 MONO Mono Mono Mono Mono

STEREO Stereo Stereo Stereo Stereo

The Automatic Sound Select process will automatically switch to the mono compatible analog standard.

The Automatic Sound Select process will automatically switch to the mono compatible digital standard.

The MSP Standard Codes are defined in Table 3–7 on page 18.

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MSP 34x7G PRELIMINARY DATA SHEET

2.3. Preprocessing for SCART

The SCART input need only be adjusted in level by means of the SCART prescale register.

2.4. Source Selection and Output Channel Matrix

The Source Selec tor makes it possible to di stribute all source signals (o ne of the demodulator source ch annels or SCART) to the desired out put channels (loudspeaker, etc.). All input and output signals can be processed simultaneously. Each source channel is identified by a unique source address.

For each output channel, the soun d mode can be set to sound A, sound B, stereo, or mono by means of the output channel matrix.

If Automatic Sound Select is on, the output channel matrix can stay fixed to stereo (transparent) for demodulated signals.

2.5. Audio Baseband Processing

2.5.1. Automatic Volume Correction (AVC)

Different sound sources (e.g. terrest rial ch annels, SAT channels, or SCART) fairly often do not have the same volume level. Advertisements during movies usually have a higher volume level than the movie itself. This results in annoying volume chang es. The AVC solves this problem by equalizing the volume level.

To prevent clipping, th e AVC’s gain decreases quickly in dynamic boost conditions. To suppress oscillation effects, the gain increases rather slowly for low level inputs. The decay time is programmable by means of the AVC register (see page 27).

For input signals ranging from −24 dBr to 0 dBr, the AVC maintains a fixed output level of −18 dBr . Fig. 2–4 shows the AVC output level versus its input level. For prescale and volume registers set to 0 dB, a level of 0 dBr corresponds to full scale input/output. This is

– SCART input/output 0 dBr = 2.0 V – Loudspeaker output 0 dBr = 1.4 V

rms rms

output level [dBr]

−18

−24

input level

−30 −24 −18 −12 −6

[dBr]

Fig. 2–4: Simplified AVC characteristics

2.5.2. Quasi-Peak Detector

The quasi-peak r eadout register can be used to read out the quasi-peak level of any input source. The feature is based on following filter time constants:

attack time: 1.3 ms decay time: 37 ms

12 Micronas

Page 13

PRELIMINARY DATA SHEET MSP 34x7G

2.6. SCART Signal Routing

2.6.1. SCART DSP In and SCART Out Select

The SCART DSP Input Select and SCART Output Select blocks include switchi ng facilities. The switches are controlled by the ACB user register (see page 28).

2.6.2. Stand-by Mode

If the MSP 34x7G is switched off by first pulling STANDBYQ low and th en (a fter >1 µs delay) switching off DVSUP and AVSUP, but keeping AHVSUP (‘Stand-by’-mode), the SCART switches maintain their position and function. This allows the copying from SCART-input to SCART-output in the TV set’s stand-by mode.

In case of power on or startin g from stand-by (switching on the DVSUP and AVSUP, RESETQ going high 2 ms later), all internal re giste rs except th e ACB register (page 28) are reset to the default configuration (see Table 3–5 on p age 17). The reset position of th e ACB register becomes active after the fir st I

C transmission into the Baseband Processing part. By transmitting the ACB register first, the reset state can be redefined.

2.7. Digital Control I/O Pins and Status Change Indication

The static level of the digital input/output pins D_CTR_I/O_0/1 is switchable between HIGH and LOW via the I (see page 28). This enables the contro lling o f extern al hardware switches or other devices via I

C-bus by means of the ACB register

C-bus.

The digital input/outpu t pins can be set to high im pedance by means of the MODUS register (see page 21). In this mode, the pins can be used as input. The current state can be read out of the STATUS register (see page 22).

Optionally, the pin D_CTR_I/O_1 can be used as an interrupt reques t signa l to the c ontroll er, indicating any changes in th e re ad re gi st er STATUS . Th is makes polling unnecessary; I

C-bus interactions are reduced to a minimum (see STATUS register on page 22 and MODUS regist er on page 21).

2.8. Clock PLL Oscillator and

Crystal Specifications

The MSP 34x7G derives all internal system clocks from the 18.432-MHz oscillator. In NICAM mode, the clock is phase-locked to the corresponding source.

For proper performance, the MSP clock oscillator requires a 18.432-MHz crystal. Note, that for the phase-locked mode (NICAM), cr ystals with tighter tol erance are required.

Micronas 13

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MSP 34x7G PRELIMINARY DATA SHEET

3. Control Interface

C Bus Interface

3.1. I

The MSP 34x7G is controlled via the I

C bus slave

interface. The IC is selected by transmitting one of the

MSP 34x7G device addresses. In order to allow up to three MSP ICs to be connected to a single bus, an address select pin (ADR_SEL) has been implemented. With ADR_SEL pulled to high, low, or left open, the MSP 34x7G responds to different device addresses. A device address pair is defined as a write address and a read address (see Table 3–1).

Writing is done by sending the write device address, followed by the subaddress byte, two address bytes, and two data bytes.

Reading is done by sending the writ e device address, followed by the subaddress byte and two address bytes. Without sending a stop condi tio n, r ead in g of th e addressed data is completed by sending the device read address and reading two bytes of data.

Refer to Section 3 .1.3. for the I Section 3.4. “Programming Tips” on page 30 for proposals of MSP 34x7G I

C telegrams. See Table 3–2

C bus protocol and to

for a list of available subaddresses.

response time is about 0.3 ms. If the MSP cannot accept another byte of data (e.g. while servicing an internal inte rru pt), it holds the clock line I2C_CL low to force the transmitter into a wait state. The I Master must read back the clock line to detect whe n the MSP is ready to rec eive the next I

C transmission.

C Bus

The positions within a transmission where this may happen are indicated by ’Wait’ in Section 3.1.3. The maximum wait period of the MSP during normal operation mode is less than 1 ms.

3.1.1. Internal Hardware Error Handling

In case of any har dware problems (e.g. inter ruption of the power supply of the MSP), the MSP’s wait period is extended to 1.8 ms. After this time period elapses, the MSP releases data and clock lines.

Indication and solving the error status:

To indicate the error status, the remaining acknowledge bits of the actual I Additionally, bit[14] of CONTROL is set to one. The MSP can then be reset via the I

C-protocol will be left high.

C bus by transmitting

the RESET condition to CONTROL.

Indication of reset:

Besides the possibility of hardware reset, the MSP can also be reset by means of the RE SET bit in the CO NTROL register by the controller via I

Due to the architecture o f the MS P 34x7G, the IC cannot react immediately to an I

Table 3–1: I

ADR_SEL Low

Mode Write Read Write Read Write Read

MSP device address 80

C Bus Device Addresses

C bus.

C request. The typical

(connected to DVSS)

hex

Any reset, even caused by an unstable reset line etc., is indicated in bit[15] of CONTROL.

A general timing diagram of the I

C bus is shown in

Fig. 4–21 on page 48.

(connected to DVSUP)

hex

High

hex

Left Open

Table 3–2: I2C Bus Subaddresses

Name Binary Value Hex Value Mode Function

CONTROL 0000 0000 00 Read/Write Write: Software reset of MSP (see Table 3–3)

Read: Hardware error status of MSP

WR_DEM 0001 0000 10 Write write address demodulator

hex

RD_DEM 0001 0001 11 Write read address demodulator WR_DSP 0001 0010 12 Write write address DSP RD_DSP 0001 0011 13 Write read address DSP

14 Micronas

Page 15

PRELIMINARY DATA SHEET MSP 34x7G

3.1.2. Description of CONTROL Register

Table 3–3: CONTROL as a Write Register

Name Subaddress Bit[15] (MSB) Bits[14:0]

CONTROL 0 0

hex

1 : RESET 0 : normal

Table 3–4: CONTROL as a Read Register

Name Subaddress Bit[15] (MSB) Bit[14] Bits[13:0]

CONTROL 0 0

hex

RESET status after last reading of CONTROL:

0 : no reset occured

Internal hardware status: 0 : no error occured 1 : internal error occured

not of interest

1 : reset occured

Reading of CONTROL will reset the bits[15,14] of CONTROL. After Power-on,

bit[15] of CONTROL will be set; it must be

read once to be reset.

3.1.3. Protocol Description

Write to DSP or Demodulator

Swrite

device

address

Wait

ACK sub-addr ACK addr-byte

high

ACK addr-byte

low

ACK data-byte

high

ACK data-byte

low

ACK P

Read from DSP or Demodulator

Swrite

device

address

Wait

ACK sub-addr ACK addr-byte

high

ACK addr-byte

low

ACK S read

device

address

Wait

ACK data-byte-

high

ACK data-byte

Write to Control Register

Swrite

device

address

ACK sub-addr ACK data- byte

high

ACK data-byte

low

ACK P

Wait

Read from Control Register

Swrite

device

address

Wait

Note: S = I

P = I

ACK 00hex ACK S read

C-Bus Start Condition from master

C-Bus Stop Condition from master

device

address

Wait

ACK data-byte-

high

ACK data-byte

low

NAK P

ACK = Acknowledge-Bit: LOW on I2C_DA from slave (= MSP, light gray) or master (= controller, dark gray) NAK = Not Acknowledge-Bit: HIGH on I2C_DA from master (dark gray) to indicate ‘End of Read’

or from MSP indicating internal error state

Wait = I

C-Clock line is held low, while the MSP is processing the I2C command.

This waiting time is max. 1 ms

NAK P

low

Micronas 15

Page 16

MSP 34x7G PRELIMINARY DATA SHEET

I2C_DA

1 0

S P

I2C_CL

Fig. 3 –1: I2C bus protocol (MSB first; data must be stable while clock is high)

3.1.4. Proposals for General MSP 34x7G

C Telegrams

3.1.4.1. Symbols

3.2. Start-Up Sequence: Po wer-Up and I

After POWER-ON or RESET (see Fig. 4 –20 ), the IC is in an inactive state. All registers are in the Rese t posi-

daw write device address (80 dar read device address (81 < Start Condition

hex

, 85

hex hex

or 88

or 89

hex

)

tion (see Table 3–5 and Table 3–6), the analog outputs are muted. The controll er has to initialize all registers for which a non-default setting is necessary.

, 84

> Stop Condition aa Address Byte dd Data Byte

3.3. MSP 34x7G Programming Interface

C-Controlling

3.1.4.2. Write Telegrams

<daw 00 d0 00> write to CONTROL register <daw 10 aa aa dd dd> write data into demodulator <daw 12 aa aa dd dd> write data into DSP

3.1.4.3. Read Telegrams

<daw 00 <dar dd dd> read data from

CONTROL register

<daw 11 aa aa <dar dd dd> read data from demodulator <daw 13 aa aa <dar dd dd> read data from DSP

3.1.4.4. Examples

<80 00 80 00> RESET MSP statically <80 00 00 00> Clear RESET <80 10 00 20 00 03> Set demodulator to stand. 03 <80 11 02 00 <81 dd dd> Read STATUS <80 12 00 08 01 20> Set loudspeaker channel

source to NICAM and Matrix to STEREO

hex

3.3.1. User Registers Overview

The MSP 34x7G is controlled by means of user registers. The complete list of all user registers are given in Table 3–5 and Table 3–6. The registers are par titi oned into the Demodulator section (Subaddress 10 writing, 11 ing sections (Subaddress 12

for reading) and the Baseband Proc ess-

hex

for writing, 13

hex

for

reading). Write and read registers are 16 bit wide, whereby the

MSB is denoted bit[15]. Transmissions via I

C bus have to take place in 16-bit words (two byte transfers, with the most significant byte transferred first). All write registers, except the demodulator write registers are readable.

Unused parts of the 16-bit write registers must be zero.

Addresses not given in this table must not be accessed.

For reasons of software compatibility to the MSP 34xxD, a Manual/C omp ati bil it y Mode i s available. More read and wr ite registers to gether with a detaile d description can be found in “Appendix B: Manual/Compatibility Mode” on page 60.

More examples of typical application protocols are listed in Section 3.4. “Programming Tips” on page 30.

16 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

Table 3–5: List of MSP 34x7G Write Registers

Write Register Address

(hex)

I2C Sub-Address = 10

; Registers are not readable

hex

Bits Description and Adjustable Range Reset See

Page

STANDARD SELECT 00 20 [15:0] Initial Programming of the Demodulator 0000 19 MODUS 00 30 [15:0] Demodulator, Automatic options 00 00 21

I2C Sub-Address = 12

; Registers are all readable by using I2C Sub-Address = 13

hex

Volume loudspeaker channel 00 00 [15:8] [+12 dB ... −114 dB, MUTE] MUTE 26 Volume / Mode loudspeaker channel [7:0] 1/8 dB Steps,

Reduce Volume / Tone Control / Compromise /

hex

Dynamic

Volume SCAR T1 output channel 00 07 [15:8] [+12 dB ... −114 dB, MUTE] MUTE 27

Loudspeaker source select 00 08 [15:8] [FM/AM, NICAM, SCART , I

S1, I2S2] FM/AM 25 Loudspeaker channel matrix [7:0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 25 SCART1 source select 00 0A [15:8] [FM/AM, NICAM, SCART, I

S1, I2S2] FM/AM 25 SCART1 channel matrix [7:0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 25

Quasi-peak detector source select 00 0C [15:8] [FM/AM, NICAM, SCART, I

S1, I2S2] FM/AM 25 Quasi-peak detector matrix [7:0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 25 Prescale SCART input 00 0D [15:8] [00 Prescale FM/AM 00 0E [15:8] [00

hex

... 7F ... 7F

]00

hex

]00

hex

23 FM matrix [7:0] [NO_MAT, GSTERERO, KSTEREO] NO_MAT 24 Prescale NICAM 00 10 [15:8] [00

hex

... 7F ACB : SCART Switches a. D_CTR_I/O 00 13 [15:0] Bits[15:0] 00 Beeper 00 14 [15:0] [00

hex

... 7F

] (MSP 3417G, MSP 3457G only) 00

hex

]/[00

hex

... 7F

]0/028

hex

Automatic Vo lume Correc tion 00 29 [15:8] [off, on, decay time] off 27

Table 3–6: List of MSP 34x7G Read Registers

Read Register Address

(hex)

I2C Sub-Address = 11

; Registers are not writable

hex

STANDARD RESULT 00 7E [15:0] Result of Automatic Standard Detection (see Table 3–8) 22 STATUS 02 00 [15:0] Monitoring of internal settings e.g. Stereo, Mono, Mute etc. 22

I2C Sub-Address = 13

; Registers are not writable

hex

Quasi-peak readout left 00 19 [15:0] [00 Quasi-peak readout right 00 1A [15:0] [00 MSP hardware version code 00 1E [15:8] [00 MSP major revision code [7:0] [00 MSP product code 00 1F [15:8] [00 MSP ROM version code [7:0] [00

Bits Description and Adjustable Range See

... 7FFF

hex

... 7FFF

hex

... FF

hex

... FF

hex

... FF

hex

... FF

hex

] 16 bit two’s complement 29

hex

] 16 bit two’s complement 29

hex

]29

hex

]29

hex

]29

hex

]29

hex

24 28

Page

Micronas 17

Page 18

MSP 34x7G PRELIMINARY DATA SHEET

3.3.2. Description of User Registers

Table 3–7: Standard Codes for STANDARD SELECT register

MSP Standard Code (Data in hex)

TV Sound Standard Sound Carrier

Frequencies in MHz

MSP 34x7G Version

Automatic Standard Detection

00 01 Starts Automatic Standard Detection and

all

sets detected standard

Standard Selection

00 02 M-Dual FM-Stereo 4.5/4.724212 3407, -17, -27, -47, -57 00 03 B/G-Dual FM-Stereo 00 04 D/K1-Dual FM-Stereo 00 05 D/K2-Dual FM-Stereo

00 06 D/K -FM-Mono with HDEV3

, not detectable by

5.5/5.7421875 3407, -17, -57

6.5/6.2578125

6.5/6.7421875

6.5

Automatic Standard Detection, for China

HDEV3

SAT-Mono (i.e. Eutelsat, s. Table 6–18) 00 07 D/K3-Dual FM-Stereo 6.5/5.7421875 00 08 B/G-NICAM-FM

5.5/5.85 3417, -57 00 09 L-NICAM-AM 6.5/5.85 00 0A I-NICAM-FM 6.0/6.552 00 0B D/K-NICAM-FM

00 0C D/K-NICAM-FM with HDEV2

, not detectable by

6.5/5.85

Automatic Standard Detection, for China

00 0D D/K-NICAM-FM with HDEV3

, not detectable by

6.5/5.85

Automatic Standard Detection, for China 00 20 BTSC-Stereo 4.5 3427, -47, -57 00 21 BTSC-Mono + SAP 00 30 M-EIA-J Japan Stereo 4.5 3427, -47, -57 00 40 FM-Stereo Radio with 75 µs Deemphasis 10.7 3427, -47, -57 00 50 SAT-Mono (see Table6–18) 6.5 3407, -17, -57 00 51 SAT-Stereo (see Table6–18) 7.02/7.20

In case of Automatic Sound Select, the B/G-codes 3

In case of Automatic Sound Select, the D/K-codes 4

HDEV3: Max. FM deviation must not exceed 540 kHz

HDEV2: Max. FM deviation must not exceed 360 kHz

hex hex

and 8

, 5

hex

are equivalent.

hex

, 7

, and B

hex

are equivalent.

hex

18 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

3.3.2.1. STANDARD SELECT Register

The TV sound standard of the MSP 34x7G demodulator is determined by the STANDARD SELECT regis ter. There are two ways to use the STANDARD SELECT register:

– Setting up the demodulator for a TV sound standard

by sending the corresponding standard code with a single I

C bus transmission.

– Starting the Automatic Standard Detection for ter-

restrial TV standards. This is the most comfortable way to set up the demodulator. Within 0.5 s, the detection and setup of the actual TV sound standard is performed. The detected standard can be read out of the STANDARD RESULT register by the control processor. This feature is recommended for the primary setup of a TV set. Outputs should be muted

during Automatic Standard Detection . The Standard Codes are listed in Table 3–7. Selecting a TV sound standard via the STANDARD

SELECT register initializes the demodulator. This includes: AGC-settings and carrier mute, tuning frequencies, FIR-filter se ttings, demodulation mode ( FM, AM, NICAM), deemphasis and identification mode.

TV stereo sound standards that are unavailable for a specific MSP version are processed in analog mono sound of the standard. In that case, stereo or bil ingual processing will not be possible.

For a complete setup of the TV sound processing from analog IF input to the source selection, the transmi ssions as shown in Section 3.5. are necessary.

3.3.2.2. Refresh of STANDARD SELECT Register

A general refresh o f t he ST A NDAR D S EL ECT register is not allowed. However, the following method enables watching the MSP 34x7G “alive” status and detection of accidental resets (only versions B6 and later):

– After Power-on, bit[15] of CONTROL will be set; it

must be read once to enable the reset-detection feature.

– Reading of the CONTROL register and checking

the reset indicator bit[15] .

– If bit[15] is “0”, any refresh of the STANDARD

SELECT register is not allowed.

– If bit[15] is “1”, indicating a reset, a refresh of the

STANDARD SELECT register and all other MSPG registers is required.

3.3.2.3. STANDARD RESULT Register

If Automatic Standard Detection is selected in the STANDARD SELECT reg ister, status and result of the Automatic Standard Detection process can be read out of the STANDARD RESULT register. The possible results are based on the mentioned Standard Code and are listed in Table 3–8.

In cases where no sound standard h as been detected (no standard present, too much noise, strong interferers, etc.) the STANDARD RESULT register contains 00 00

. In that case, the controller has to start further

hex

actions (for example set the standard according to a preference list or by manual input).

For reasons of software compatibility to the MSP 34x7D, a Manual/Compatibility mode is available. A detailed descr iption o f this m ode can be found on page 60.

As long as the STANDARD RESULT register contain s a value greater than 07 FF

, the Automatic Standard

hex

Detection is still active. During this period, the MODUS and STANDARD SELECT registe r must not be written. The STATUS register will be updated when the Automatic Standard Detection has finished.

If a present sound s tandard is unavailable for a specific MSP-version, it dete cts and switches to the analog mono sound of this standard.

Example: The MSPs 3427G and 3447G will detect a B/G-NICAM signal as stand ard 3 and will switch to t he analog FMMono sound.

Micronas 19

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MSP 34x7G PRELIMINARY DATA SHEET

Table 3–8: Results of the Automatic Standard Detection

Broadcasted Sound Standard

Automatic Stan dard Detection could not

STANDARD RESULT Register

Read 007E

0000

hex

find a sound standard B/G-FM 0003 B/G-NICAM 0008 I000A FM-Radio 0040 M-Korea

M-Japan M-BTSC

L-AM D/K1 D/K2 D/K3

L-NICAM D/K-NICAM

0002 0020 0030 0009 0004

0009 000B

hex

(if MODUS[14,13]=00)

hex

(if MODUS[14,13]=01)

hex

(if MODUS[14,13]=10)

hex

(if MODUS[12]=0)

hex

(if MODUS[12]=1)

hex

(if MODUS[12]=0)

hex

(if MODUS[12]=1)

hex

Automatic Stan dard Detection still active

>07FF

hex

20 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

3.3.2.4. Write Registers on I2C Subaddress 10

Table 3–9: Write registers on I2C subaddress 10

Function Name

Address

00 20

hex

STANDARD SELECTION Register

Defines TV-Sound or FM-Radio Standard bit[15:0] 00 01

00 02

start Automatic Standard Detection

hex

MSP Standard Codes (see Table 3–7)

hex

...

hex

00 30

hex

00 51

MODUS Register

Preference in Automatic Standard Detection: bit[15] 0 undefined, must be 0 bit[14:13] detected 4.5 MHz carrier is interpreted as:

0 standard M (Korea) 1 standard M (BTSC) 2 standard M (Japan) 3 chroma carrier (M/N standards are ignored)

bit[12] detected 6.5 MHz carrier is interpreted as:

0 standard L (SECAM) 1 standard D/K1, D/K2, D/K3, or D/K NICAM

hex

STANDARD_SEL

MODUS

General MSP 34x7G Options bit[11:4] 0 undefined, must be 0 bit[3] state of digital output pins D_CTR_I/O_0 and _1

0 active: D_CTR_I/O_0 and _1 are output pins

(can be set by means of the ACB register. see also: MODUS[1])

1 tristate: D_CTR_I/O_0 and _1 are input pins

(level can be read out of STATUS[4,3]) bit[2] 0 undefined, must be 0 bit[1] 0/1 disable/enable STATUS change indication by means of

the digital I/O pin D_CTR_I/O_1

Necessary condition: MODUS[3] = 0 (active) bit[0] 0/1 off/on: Automatic Sound Select

Valid at the next start of Automatic Standard Detection.

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MSP 34x7G PRELIMINARY DATA SHEET

3.3.2.5. Read Registers on I2C Subaddress 11

hex

Table 3–10: Read Registers on I2C Subaddress 11

Function Name

Address

00 7E

hex

STANDARD RESULT Register

Readback of the detected TV sound or FM-Radio Standard bit[15:0] 00 00

Automatic Standard Detection could not find

hex

a sound standard

00 02

MSP Standard Codes (see Table 3–8)

hex

...

02 00

hex

00 40

>07 FF

STATUS Register

hex

Automatic Standard Detection still active

hex

Contains all user relevant internal information about the status of the MSP bit[15:10] undefined bit[8] 0/1 “1” indicates bilingual sound mode or SAP present

(internally evaluated from received analog or digital identification signals)

hex

STANDARD_RES

STATUS

bit[7] 0/1 “1” indicates independent mono sound (only for

NICAM)

bit[6] 0/1 mono/stereo indication

(internally evaluated from received analog or digital identification signals)

bit[5,9] 00 analog sound standard (FM or AM) active

01 this pattern will not occur 10 digital sound (NICAM) available 11 bad reception condition of digital sound (NICAM) due to:

a. high error rate b. unimple me nte d so un d co de

c. data transmission o nly bit[4] 0/1 low/high level of digital I/O pin D_CTR_I/O_1 bit[3] 0/1 low/high level of digital I/O pin D_CTR_I/O_0 bit[2] 0 detected secondary carrier (2nd A2 or SAP sub-carrier)

1 no secondary carrier detected

bit[1] 0 detected primary carrie r (Mono or MPX carrier)

1 no primary carrier detected bit[0] undefined If STATUS change indication is activated by means of MODUS[1]: Each

change in the STATUS register sets the digital I/O pin D_CTR_I/O_1 to high level. Reading the STATUS register resets D_CTR_I/O_1.

22 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

3.3.2.6. Write Registers on I2C Subaddress 12

hex

Table 3–11: Write Registers on I2C Subaddress 12

Function Name

Address PREPROCESSING

00 0E

hex

FM/AM Prescale

bit[15:8] 00

hex

Defines the input prescale gain for the demodulated ... FM or AM signal 7F

hex

off (RESET condition)

For all FM modes except satellite FM and AM-mode, the combinations of prescale value and FM deviation listed below lead to internal full scale.

FM mode bit[15:8] 7F

48 30 24 18 13

hex hex hex hex hex hex

28 kHz FM deviation

50 kHz FM deviation

75 kHz FM deviation

100 kHz FM deviation

150 kHz FM deviation

180 kHz FM deviation (limit)

hex

PRE_FM

FM high deviation mode (HDEV2, MSP Standard Code = C bit[15:8] 30

hex hex

150 kHz FM deviation

360 kHz FM deviation (limit)

hex

FM very high deviation mode (HDEV3, MSP Standard Code = 6 bit[15:8] 20

hex

450 kHz FM deviation

540 kHz FM deviation (limit)

Satellite FM with adaptive deemphasis bit[15:8] 10

hex

AM mode (MSP Standard Code = 9 bit[15:8] 7C

hex

recommendation

)

hex

recommendation for SIF input levels from

0.1 V

to 0.8 V

(Due to the AGC being switched on, the AM-output level

remains stable and independent of the actual SIF-level in

the mentioned input range)

)

hex

and D

hex

)

Micronas 23

Page 24

MSP 34x7G PRELIMINARY DATA SHEET

Table 3–11: Write Registers on I

C Subaddress 12

, continued

hex

(continued)

00 0E

hex

00 10

hex

Function Name

FM Matrix Modes

FM_MATRIX

Defines the dematrix function for the demodulated FM signal bit[7:0] 00

01 02 03

hex hex hex hex

no matrix (used f or b ili ng ua l an d unma t rixed stereo sound) German stereo (Standard B/G) Korean stereo (also used for BTSC, EIA-J and FM Radio) sound A mono (left and right channel contain the mono sound of the FM/AM mono carrier)

hex

sound B mono

In case of Automatic Sound Select = on, the FM Matrix Mode is set automatically . Writing to the FM/AM prescale register (00 0E In order not to disturb the automatic process, the low part of any I

high part) is still allowed.

hex

C transmission to this register is ignored. Therefore, any FM-Matrix readback values may differ from data written previously.

In case of Automatic Sound Select = off, the FM Matrix Mode must be set as shown in Table 6–17 of Appendix B.

To enable a Forced Mono Mode set A2 THRESHOLD as described in Section 6.3.2.on page 64

NICAM Prescale

PRE_NICAM

00 0D

hex

Defines the input prescale value for the digital NICAM signal bit[15:8] 00

hex

... 7F

prescale gain

hex

examples: 00 20 5A 7F

hex hex

hex

off 0dB gain 9 dB gain (recommendation) +12 dB gain (maximum gain)

SCART Input Prescale

Defines the input prescale value for the analog SCART input signal bit[15:8] 00

hex

... 7F

prescale gain

hex

examples: 00 19 7F

hex hex hex

off (RESET condition) 0dB gain (2 V

input leads to digital full scale)

RMS

+14 dB gain (400 mV

input leads to digital full scale)

RMS

PRE_SCART

24 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

Table 3–11: Write Registers on I

C Subaddress 12

, continued

hex

Function Name

Address SOURCE SELECT AND OUTPUT CHANNEL MATRIX

Source for:

00 08 00 0A 00 0C

hex

hex hex

Loudspeaker Output SCART1 DA Output Quasi-Peak Detector

bit[15:8] 0 “FM/AM”: demodulated FM or AM mono signal

1 “Stereo or A/B”: demodulator Stereo or A/B signal

(in manual mode, this source is identical to the NICAM source in the MSP 3417D)

3 “Stereo or A”: demodulator Stereo Sound or

Language A (only defined for Automatic Sound Select)

4 “Stereo or B”: demodulator Stereo Sound or

Language B (only defined for Automatic Sound Select)

2SCART input

For demodulator sources, see Table 2–2.

Matrix Mode for:

00 08 00 0A 00 0C

hex

hex hex

Loudspeaker Output SCART1 DA Output Quasi-Peak Detector

SRC_MAIN SRC_SCART1 SRC_QPEAK

MAT_MAIN MAT_SCART1 MAT_QPEAK

bit[7:0] 00

10 20 30

hex hex hex hex

Sound A Mono (or Left Mono) (RESET condition) Sound B Mono (or Right Mono) Stereo (transparent mode) Mono (sum of left and right inputs divided by 2)

special modes are available (see Section 6.5.1. on page 72)

In Automatic Sound Select mode, the demodulator source channels are set according to Table 2–2. Therefore, the matrix modes of the cor responding output channels should be set to “Stereo” (transparent).

Micronas 25

Page 26

MSP 34x7G PRELIMINARY DATA SHEET

Table 3–11: Write Registers on I

C Subaddress 12

, continued

hex

Function Name

Address LOUDSPEAKER PROC ES SING

00 00

hex

Volume Loudspeaker

bit[15:8] volume table with 1 dB step size

hex

... 74

hex

... 02

hex

bit[7:5] higher resolution volume table

0 +0dB 1 +0.125 dB increase in addition to the volume table ... 7 +0.875 dB increase in addition to the volume table

VOL_MAIN

+12 dB (maximum volume) +11 dB

+1dB

0dB

−1dB

−113 dB

−114 dB

Mute (RESET condition) Fast Mute (needs about 75 ms until the signal is completely ramped down)

bit[4] 0 must be set to 0 bit[3:0] clipping mode

0 reduce volume 1 reduce tone control 2 compromise 3dynamic

With large scale input signals, positive volume settings may lead to signal clipping.

The MSP 34x7G loudspeaker and headphone volume function is divided into a digital and an analog section. With Fast Mute, volume is reduced to mute position by digital volume only. Analog volume is not changed. This reduces any audible DC plops. T o turn volume on again, the volume step that has been used before Fast Mute was activated must be transmitted.

If the clipping mode is set to “reduce volume”, the following rule is used: To prevent severe clipping effects with bass, treble, or equalizer boosts, the internal volume is automatically limited to a level where, in combination with either bass, treble, or equalizer setting, the amplification does not exceed 12 dB.

If the clipping mode is “reduce tone control”, the bass or treble value is reduced if amplification exceeds 12 dB. If the equalizer is switched on, the gain of those bands is reduced, where amplification together with volume exceeds 12 dB.

If the clipping mode is “compromise”, the bass or treble value and volume are reduced half and half if amplification exceeds 12 dB. If the equalizer is switched on, the gain of those bands is reduced half and half, where amplification together with volume exceeds 12 dB.

If the clipping mode is “dynamic”, volume is reduced automatically if the signal amplitudes would exceed −2 dBFS within the IC.

26 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

Table 3–11: Write Registers on I

C Subaddress 12

, continued

hex

Function Name

Address

00 29

hex

Automatic Volume Correction (AVC) Loudspeaker Channel

bit[15:12] 00

bit[11:8] 08

04 02 01

hex hex

hex hex hex hex

SCART OUTPUT CHANNEL

00 07

hex

Volume SCART1 Output Channel

bit[15:8] volume table with 1 dB step size

hex

... 74

hex

... 02

hex

bit[7:5] higher resolution volume table

0 +0dB 1 +0.125 dB increase in addition to the volume table ... 7 +0.875 dB increase in addition to the volume table

AVC off (and reset internal variables) AVC on

8 sec decay time 4 sec decay time (recommended) 2 sec decay time 20 ms decay time (should be used for approx. 100 ms after channel change)

+12 dB (maximum volume) +11 dB

+1dB

0dB

−1dB

−113 dB

−114 dB

Mute (RESET condition)

AVC

AVC_DECAY

VOL_SCART1

bit[4:0] 01

hex

this must be 01

hex

Micronas 27

Page 28

MSP 34x7G PRELIMINARY DATA SHEET

Table 3–11: Write Registers on I

C Subaddress 12

, continued

hex

Function Name

Address SCART SWITCHES AND DIGITAL I/O PINS

00 13

hex

ACB Register

Defines the level of the digital out pu t pi ns an d th e po si ti on of th e S CA RT switches bit[15] 0/1 low/high of digital output pin D_CTR_I/O_1

(MODUS[3]=0)

bit[14] 0/1 low/high of digital output pin D_CTR_I/O_0

(MODUS[3]=0)

bit[13:5] SCART DSP Input Select

xxxx00xx0 SCART1 to DSP input (RESET position) xxxx01xx0 MONO to DSP input (Sound A Mono must be selected in

the channel matrix mode for the corresponding output channels)

xxxx11xx1 mute DSP input

bit[13:5] SCART1 Output Select

xx00xxx0x undefined (RESET position) xx10xxx0x MONO input to SCART1 output xx11xxx0x SCART1 DA to SCART1 output xx01xxx1x SCART1 input to SCART1 output xx11xxx1x mute SCART1 output

ACB_REG

BEEPER

00 14

hex

The RESET position b ecomes active at the time of the first wr ite transmission on the control bus to the audio pr ocessing par t. By writing to the ACB register first, the RESET state can be redefined.

Beeper Volume and Frequency

bit[15:8] Beeper Volume

00 7F

hex hex

off maximum volume

bit[7:0] Beepe r Frequency

01 40 FF

hex hex

hex

16 Hz (lowest) 1kHz 4kHz

BEEPER

28 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

3.3.2.7. Read Registers on I2C Subaddress 13

hex

Table 3–12: Read Registers on I2C Subaddress 13

Function Name

Address QUASI-PEAK DETECTOR READOUT

00 19 00 1A

hex

Quasi-Peak Detector Readout Left Quasi-Peak Detector Readout Right

bit[15:0] 0

... 7FFF

hex

values are 16 bit two’s complement (only positive)

hex

MSP 34x7G VERSION READOUT REGISTERS

00 1E

MSP Hardware Version Code

hex

bit[15:8] 02

hex

MSP 34x7G - B8

A change in the hardware version co de defines hardware optimizations that may have influence on the chip’s behavior. The readout of this register is ide ntical to the hardware version code in the chip’s imprint.

MSP Major Revision Code

hex

QPEAK_L QPEAK_R

MSP_HARD

MSP_REVISION

00 1F

bit[7:0] 07

MSP Product Code

hex

bit[15:8] 07

11 1B 2F 39 43

hex

hex hex

hex hex hex hex

MSP 34x7G - B8

MSP 3407G - B8 MSP 3417G - B8 MSP 3427G - B8 MSP 3447G - B8 MSP 3457G - B8 MSP 3467G - B8

By means of the MSP product code, the cont rol processor is able to dec ide which TV sound standards have to be considered.

MSP ROM Version Code

bit[7:0] 46

hex hex

MSP 34x7G - B6 MSP 34x7G - B8

A change in the ROM version code defines internal software optimizations, that may have influence on the chip’s behavior, e.g. new features may have been included. Whi le a soft ware change is intended t o create no compa tibility problems, customers that want to use the new functions can identify new MSP 34x7G versions according to this number.

To avoid compatibility problems with MSP 3410B and MSP 34x7D, an offset of

is added to the ROM version code of the chip’s imprint.

hex

MSP_PRODUCT

MSP_ROM

Micronas 29

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MSP 34x7G PRELIMINARY DATA SHEET

3.4. Programming Tips

This section describes the preferred method for initializing the MSP 34x7G. The initialization is grouped into three sections:

– SCART Signal Path (analog signal path) – Demodulator – Output Channels

See Fig. 2–1 on page 8 for a complete signal flow.

SCART Signal Path

1. Select analog input for the SCART baseband processing (SCART DSP Input Select) by means of the ACB register.

2. Set preferred prescale for SCART.

3. Select the source for the analog SCART output by means of the ACB register.

Demodulator

For a complete setup of the TV sound processing from analog IF input to the source selection, the following steps must be performed:

1. Set MODUS register to the preferred mode and

Sound IF input.

2. Set preferred prescale (FM and NICAM) values.

3.5. Examples of Minimum Initialization Codes

Initialization of the MSP 34x7G according to these listings reproduces sound of the selected standard on the loudspeaker output. All numbers are hexadecimal. The examples have the following structure:

1. Perform an I

C controlled reset of the IC.

2. Write MODUS register (with Automatic Sound Select).

3. Set Source Selection for loudspeaker channel (with matrix set to STEREO).

4. Set Prescale (FM and/or NICAM and dummy FM matrix).

5. Write STANDARD SELECT register.

6. Set Volume loudspeaker channel to 0 dB.

3.5.1. B/G-FM (A2 or NICAM)

<80008000> // Softreset <80000000> <801000302003> // MODUS-Register: Automatic = on <801200080320> // Source Sel . = (S t o r A ) & C h . Ma tr. = St

hex

<8012000E2403> // FM/AM-Prescale = 24

FM-Matrix = MO NO/SOUND A

<801200105A00> // NICAM-Prescale = <801000200003> // Standard Select: A2 B/G or NICAM B/G

<801000200008> <801200007300> // Loudspeaker Volume 0 dB

3. Write STANDARD SELECT register.

4. If Automatic Sound Select is not active: Choose FM matrix repeatedly according to the sound mode indicated in the STATUS register.

Output Channels

1. Select the source channel and matrix for each out-

put channel.

2. Select volume for each output channel.

3.5.2. BTSC-Stereo

<80008000> // Softreset <80000000> <801000302003> // MODUS-Register: Automatic = on <801200080320> // Source Sel . = (S t o r A ) & C h . Ma tr. = St <8012000E2403> // FM/AM-Prescale = 24

FM-Matrix = Sound A Mono

<801000200020> // Standard Select: BTSC-STEREO <801200007300> // Loudspeaker Volume 0 dB

hex

3.5.3. BTSC-SAP with SAP at Loudspeaker Channel

<80008000> // Softreset <80000000> <801000302003> // MODUS-Register: Automatic = on <801200080320> // Source Sel . = (S t o r A ) & C h . Ma tr. = St <8012000E2403> // FM/AM-Prescale = 24

FM-Matrix = Sound A Mono

<801000200021> // Standard Select: BTSC-SAP <801200007300> // Loudspeaker Volume 0 dB

hex

30 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

3.5.4. FM-Stereo Radio

<80008000> // Softreset <80000000> <801000302003> // MODUS-Register: Automatic = on <801200080320> // Source Sel. = (St or A) & Ch. Matr. = St <8012000E2403> // FM/AM-Prescale = 24

FM-Matrix = Sound A Mono

<801000200040> // Standard Select: FM-STEREO-RADIO <801200007300> // Loudspeaker Volume 0 dB

hex

3.5.5. Automatic Standard Detection

A detailed software f low diagram is shown in Fi g. 3 –2 on page 32.

<80008000> // Softreset <80000000> <801000302003> // MODUS-Register: Automatic = on <801200080320> // Source Sel. = (St or A) & Ch. Matr. = St

hex

<8012000E2403> // FM/AM-Prescale = 24

FM-Matrix = Sound A Mono

<801200105A00> // NICAM-Prescale = <801000200001> // Standard Select:

Automatic Standard Detection // Wait till STANDARD RESULT contains a value ≤ 07FF // IF STANDARD RESULT contains 0000

// do some error handling // ELSE <801200007300> // Loudspeaker Volume 0 dB

3.5.6. Software Flow for Interrupt driven STATUS

Check

A detailed software f low diagram is shown in Fi g. 3 –2 on page 32.

If the D_CTR_I/O_1 pin of the MSP 34x7G is connected to an interrupt input pin of the controller, the following interrupt handler can be applied to be automatically called with each status change of the MSP 34x7G. The interrupt handler may adjust the T V display according to the new status information.

Interrupt Handler: <80 11 02 00 <81 dd dd> // Read STATUS // adjust TV-display with given status information // Return from Inte r rupt

Micronas 31

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MSP 34x7G PRELIMINARY DATA SHEET

Write MODUS Register

Example [0] = 1 Automatic Sound Select = on

[1] = 1 Enable interrupt if STATUS changes [8] = 0 ANA_IN1+ is selected Define Preference for Automatic Standard Detection: [12] = 0 If 6.5 MHz, set SECAM-L [14:13] = 3 Ignore 4.5 MHz carrier

for the essential bits:

Write SOURCE SELECT Settings

Example:

set loudspeaker Source Select to "Stereo or A" set headphone Source Select to "Stereo or B" set SCART_Out Source Select to "Stereo or A/B"

set Channel Matrix mode for all outputs to "Stereo"

Write FM/AM-Prescale Write NICAM-Prescale

set previous standard or

set standard manually according

picture informat ion

In case of interrupt from

MSP to controller:

Write 01 into

STANDARD SELECT Register

(Start Automatic Standard Detection)

yes

expecting interrupt from MSP

Result = 0

Read STATUS

Adjust TV-Display

If bilingual, adjust Source Select setting if required

Fig. 3–2: Software flow diagram for a minimum demodulator setup for a European multistandard set applying the Automatic Sound Select feature

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PRELIMINARY DATA SHEET MSP 34x7G

4. Specifications

4.1. Outline Dimensions

2752

126

47.0

1.778 25 x 1.778 = 44.4

±0.1

±0.05

±0.1

0.48

±0.06

±0.1

±0.2

4.0

0.6

±0.2

2.8

SPGS703000-1(P52)/1E

15.6 14

±0.06

0.28

16.3

Fig. 4–1:

52-Pin Plastic Shrink Dual Inline Package

(PSDIP52)

Weight approximately 5.5 g Dimensions in mm

±0.1

±1

0.17

2333

0.2±

13.2

0.2±

13.2

2.15

Fig. 4–2:

44-Pin Plastic Metric Qu ad Flat Pack

(PMQFP44)

Weight approximately 0.4 g Dimensions in mm

0.8

0.1±

0.8

10 x 0.8 = 8

SPGS706000-5(P44)/1E

0.06±

0.1±

0.05±

0.34

0.1±

2.0

0.1

0.2±

10 x 0.8 = 8

Micronas 33

Page 34

MSP 34x7G PRELIMINARY DATA SHEET

4.2. Pin Connections and Short Descriptions

NC = not connected; leave vacant LV = if not used, leave vacant DVSS: if not used, connect to DVSS X = obligatory; connect as described in circuit diagram AHVSS: connect to AHVSS

Pin No. Pin Name Type Connection

PSDIP 52-pin

PMQFP 44-pin

(if not used)

Short Description

1 7 TP LV Test pin 2 – NC LV Not connected 3 8 D_CTR_I/O_1 IN/OUT LV D_CTR_I/O_1 4 9 D_CTR_I/O_0 IN/OUT LV D_CTR_I/O_0 510ADR_SEL IN X I

C Bus address select 6 11 STANDBYQ IN X Standby (low-active) 712I2C_CL IN/OUTX I 813I2C_DA IN/OUTX I

C clock

C data 9 14 TP LV Test pin 10 15 TP LV Test pin 11 16 TP LV Test pin 12 17 TP LV Test pin 13 – TP LV Test pin 14 – TP LV Test pin 15 18 TP_CO OUT LV Test pin

16 19 DVSUP X Digital power supply +5 V 17 – DVSS X Digital ground – 20 DVSS X Digital ground 18 21 TP LV Test pin 19 – NC LV Not connected 20 22 RESETQ IN X Power-on-reset 21 23 NC LV Not connected 22 24 NC LV Not connected 23 25 VREF2 X Reference ground 2 high-voltage part 24 26 DACM_R OUT LV Loudspeaker out, right

1) Use this pin to define the capacitor size at the crystal oscillator (see Section 4.6.2.4. on page 44).

34 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

Pin No. Pin Name Type Connection

PSDIP 52-pin

PMQFP 44-pin

(if not used)

Short Description

25 27 DACM_L OUT LV Loudspeaker out, left 26 – NC LV Not connected 27 – NC LV Not connected 28 28 NC LV Not connected 29 29 VREF1 X Reference ground 1 high-voltage part 30 30 SC1_OUT_R OUT LV SCART 1 output, right 31 31 SC1_OUT_L OUT LV SCART 1 output, left 32 32 NC LV Not connected 33 33 AHVSUP X Analog power supply +8.0 V 34 34 CAPL_M X V olume capacitor MAIN 35 35 AHVSS X Analog ground 36 36 AGNDC X Analog reference voltage high-volt-

age part 37 – NC LV Not connected 38 – NC LV Not connected 39 37 NC LV Not connected 40 38 NC LV Not connected – 39 NC LV Not connected 41 40 SC1_IN_L IN LV SCART 1 input, left 42 41 SC1_IN_R IN LV SCART 1 input, right 43 42 VREFTOP X Reference voltage IF

A/D converter 44 43 MONO_IN IN LV Mono input 45 44 AVSS X Analog ground 46 1 AVSUP X Analog power supply +5 V 47 2 ANA_IN1+ IN LV IF input 1 48 3 ANA_IN− IN LV IF common 49 – NC LV Not connected 50 4 TESTEN IN X Test pin 51 5 XTAL_IN IN X Crystal oscillator 52 6 XTAL_OUT OUT X Crystal oscillator

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MSP 34x7G PRELIMINARY DATA SHEET

4.3. Pin Descriptions NC – Pin not connected

I2C_CL – I Via this pin the I

C Clock Input/Output (Fig. 4–12)

C bus clock signal has to be supplied. The signal can be pulle d down by the MSP in case o f wait conditions.

I2C_DA – I Via this pin the I

C Data Input/Output (Fig. 4–12)

C bus data is written to or read from the MSP.

TP_CO – Clock Output Output of clock signal used in or der to define capacitors at the crystal oscillator (see Section 4.6.2.4. on page 44).

DVSUP* – Digital Supply Voltage Power supply for the digital circuitr y of the MSP. Must be connected to a power supply.

DVSS* – Digital Ground Ground connection for the digital circuitry of the MSP

RESETQ – Reset Input (Fig. 4–5) In the steady state, high level is required. A low level resets the MSP 34x7G.

VREF2 – Reference Ground 2 Reference analog ground. Thi s pin must be connected separately to ground (AHVSS). VREF2 serves as a clean ground and shou ld be used as the reference for analog connections to the loudspeaker outputs.

DACM_R/L – Loudspeaker Outputs (Fig. 4–15) Output of the loudspe aker signal. A 1nF cap acitor to AHVSS must be co nnected to these pi ns. The DC offset on these pins depends on the selected volume.

CAPLM – Volume Capacitor Loudspeakers (Fig. 4–18) A 10µF capacitor to AHVSUP must be connected to this pin. It serves as smoothing filter for volume changes in order to su ppress audible plop s. The value of the capacitor can be lowered to 1µF if faster response is requi red. The area encircled by the trace lines should be minimized, keep traces as short as possible. This input is sensitive for magnetic induction.

AHVSS* – Ground for Analog Power Supply High Volt- age Ground connection for the analog circuitr y o f the MS P (except IF input).

AGNDC – Internal Analog Reference Voltage This pin ser ves as the internal ground c onnection for the analog circuitr y (except IF input). It must be connected to the VREF pins with a 3. 3 µF and a 100 nF capacitor in parallel. This pins shows a DC level of typically 3.73 V.

SC1_IN_L/R – SCART1 Inputs (Fig. 4–8) The analog input sign al for SCART1 is fed to this pin. Analog input connection must be AC coupled.

VREFTOP – Reference Voltage IF AD Converter (Fig. 4–10) Via this pin, the reference voltage for the IF AD converter is decoupled. It must be connected to AVSS pins with a 10µF and a 100nF capacitor in parallel. Traces must be kept short.

MONO_IN – Mono Input (Fig. 4–8) The analog mono inp ut s ignal i s fed to thi s p in. Analog input connection must be AC coupled.

AVSS* – Ground for Analog Power Supply Voltage Ground connection for the analo g IF input circuitry of the MSP.

VREF1 – Reference Ground 1 Reference analog ground. Thi s pin must be connected separately to ground (AHVSS). VREF1 serves as a clean ground and shou ld be used as the reference for

AVSUP* – Analog Power Supply Voltage Power is supplied via this pin for the analog IF input circuitry of the MSP. This pin must be connected to the +5 V supply.

analog connections to the SCART output.

ANA_IN1+ – IF Input 1 (Fig. 4–10)

SC1_OUT_R/L – SCART1 Outputs (Fig. 4–16)

Output of the SCART1 signal. Connections to these pins must use a 100 ohm series resistor and are intended to be AC coupled.

The analog sound if signal is supplied to this pin. Inputs must be AC coupled. This pin is designed as symmetrical input: ANA_IN1+ is internally connected to one input of a symm etri cal o p amp, ANA_IN− to the

other. AHVSUP* – Analog Power Supply High Voltage Power is supplied via this pin for the analog circuitry of the MSP (except IF input). Th is pin mus t be con nected to the +8 V supply .

ANA_IN− – IF Common (Fig. 4–10)

This pin serves as a common reference for ANA_IN1+

input.

TESTEN – Test Enable Pin (Fig. 4–6)

This pin enables factory test modes. For normal opera-

tion it must be connected to ground.

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PRELIMINARY DATA SHEET MSP 34x7G

XTAL_I N, XTAL_OUT – Crystal Input an d Outp ut P in s (Fig. 4–14) These pins are connected to an 18.432 MHz crystal oscillator which is digitally tuned by integrated shunt capacitances. An external clock can be fed into XTAL_IN. External capacitors at each crystal pin to ground (AVSS) are required. It should be verified by layout, that no supply current for the digital circuitr y is flowing through the groun d connec tion p oint. To adjust capacitors see Crystal Recommendations on page 44.

D_CTR_I/O_1/0 – Digital Control Input/Output Pins (Fig. 4–13) General purpos e input/output pins. Pin D_CT R_I/O_1 can be used as an in terrup t request pin to the c ontroller.

ADR_SEL – I

C Bus Address Select (Fig. 4–11) This pin selects the device add ress for the MSP (see Table 3–1 on page 14).

STANDBYQ – Standby In normal operation, this pin must be high. If the MSP 34x7G is switched to (‘Standby’-mode), the SCART switches maintain their position and function (see Section 2.6.2.on page 13).

* Application Note:

All ground pins shoul d be connecte d to one low-re sistive ground plane. All supply pins should be connected separately with short and low-resistive lines to the power supply. Decoupling capacitors from DVSUP to DVSS, AVSUP to AVSS, and AHVSUP to AHVS S are recommended as closely as possible to these pins. Decoupling of DVSUP and DVSS is most important. We recommend using more than one capacitor. By choosing different values, the frequency range of active decoupling can be extended. In our application boards we use: 220 pF, 470 pF, 1.5 nF, and 10 µF. The capacitor with the lowest value should be place d nea rest to the DVSUP and DVSS pins.

Micronas 37

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MSP 34x7G PRELIMINARY DATA SHEET

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27

NC D_CTR_I/O_1 D_CTR_I/O_0

ADR_SEL

STANDBYQ

I2C_CL I2C_DA

TP TP TP TP TP

TP TP_CO DVSUP

XTAL_OUT XTAL_IN TESTEN NC ANA_IN− ANA_IN1+ AVSUP AVSS MONO_IN VREFTOP SC1_IN_R SC1_IN_L NC NC NC NC

DVSS

RESETQ

NC NC

VERF2

DACM_R

DACM_L

AGNDC AHVSS CAPL_M AHVSUP NC SC1_OUT_L SC1_OUT_R VREF1 NC NC

MSP 34x7G

4.4. Pin Configurations

VREF1

SC1_OUT_R

SC1_OUT_L

AHVSUP

DACM_L

DACM_R

VREF2

Fig. 4–3: 52-pin PSDIP package

CAPL_M

AHVSS

AGNDC

SC1_IN_L SC1_IN_R VREFTOP

MONO_IN

AVSS

33 32 31 30 29 28 27 26 25 24 23

34 35 36

AVSUP

ANA_IN1+

39 40 41 42 43 44

ANA_IN−

MSP 34x7G

1234567891011

TESTEN

XTAL_IN

XTAL_OUT

D_CTR_I/O1

Fig. 4–4: 44-pin PMQFP package

22 21 20 19 18 17 16 15 14 13 12

STANDBYQ

ADR_SEL

D_CTR_I/O0

RESETQ TP DVSS DVSUP TP_CO TP TP TP TP I2C_DA I2C_CL

38 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

4.5. Pin Circuits

ANA_IN1+

>300 k

DVSS

Fig. 4–5: Input Pin: RESETQ

AVSUP

200 k

Fig. 4–6: Input Pin TESTEN

24 k

≈ 3.75 V

Fig. 4–7: Input Pin: MONO_IN

ANA_IN1− VREFTOP

Fig. 4–10: Input Pins: VREFTOP, ANA_IN1+, ANA_IN−

DVSUP

23 k

GND

ADR_SEL Fig. 4–11: Input Pin: ADR_SEL

40 k

≈ 3.75 V

Fig. 4–8: Input Pins: SC1_IN_L/R

Fig. 4–9: Input Pin: STANDBYQ

Micronas 39

Page 40

MSP 34x7G PRELIMINARY DATA SHEET

GND

DVSUP

GND

3−30 pF

500 k

3−30 pF

AHVSUP

0...1.2 mA

Fig. 4–12: Input/Output Pins: I2C_CL, I2C_DA

Fig. 4–13: Input/Output Pins: D_CTR_I/O_1, D_CTR_I/O_0

3.3 k

Fig. 4–15: Output Pins: DACM_R/L

26 pF

120 k

300

≈ 3.75 V

Fig. 4–16: Output Pins: SC1_OUT_R/L

DVSUP

Fig. 4–14: Output/Input Pins: XTAL_IN, XTAL_OUT

GND

Fig. 4–17: Output Pin: TP_CO

0...2 V

Fig. 4–18: Capacitor Pin: CAPL_M

125 k

≈ 3.75 V

Fig. 4–19: AGNDC

40 Micronas

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PRELIMINARY DATA SHEET MSP 34x7G

4.6. Electrical Characteristics

4.6.1. Absolute Maximum Ratings

Symbol Parameter Pin Name Min. Max. Unit

SUP1

SUP2

SUP3

TOT

Idig

Iana

Oana

SUP23

Ambient Operating Temperature – 070°C Storage Temperature – −40 125 °C First Supply Voltage AHVSUP −0.3 9.0 V Second Supply Voltage DVSUP −0.3 6.0 V Third Supply Voltage AVSUP −0.3 6.0 V Voltage between AVSUP

and DVSUP Package Power Dissi pa tio n

PSDIP52 PMQFP44

Input Voltage, all Digital Inputs −0.3 V

AVSUP, DVSUP

AHVSUP, DVSUP , AVSUP

−0.5 0.5 V

1200

960

+0.3 V

SUP2

mW mW

Input Current, all Digital Pins – −20 +20 mA Input Voltage, all Analog Inputs SC1_IN_s,

−0.3 V

SUP1

+0.3 V

MONO_IN

Input Current, all Analog Inputs SC1_IN_s,

−5+5mA

MONO_IN Output Current, all SCART Outputs SC1_OUT_s Output Current, all Analog Outputs

DACM_s

2) 3), 4) 3), 4)

2) 3) 3)

except SCART Outputs

Cana

positive value means current flowing into the circuit

“s” means “L” or “R”

The Analog Outputs are short-circuit proof with respect to First Supply Voltage and Ground.

Total chip power dissipation must not exceed absolute maximum rating.

Output Current, other pins connected to capacitors

CAPL_M,

AGNDC

3) 3)

Stresses beyond those listed in the “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating onl y. Functional operation of the device at these or any ot her c onditions beyond those indi cated in the “Rec ommended O perating Conditio ns/Characteris tics” of this s pecification is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability.

Micronas 41

Page 42

MSP 34x7G PRELIMINARY DATA SHEET

4.6.2. Recommended Operating Conditions

= 0 to 70 °C

at T

4.6.2.1. General Recommended Operating Conditions

Symbol Parameter Pin Name Min. Typ. Max. Unit

SUP1

First Supply Voltage

AHVSUP 7.6 8.0 8.7 V

(AHVSUP = 8 V) First Supply Voltage

4.75 5.0 5.25 V

(AHVSUP = 5V)

SUP2

SUP3

STBYQ1

Second Supply Voltage DVSUP 4.75 5.0 5.25 V Third Supply Voltage AVSUP 4.75 5.0 5.25 V STANDBYQ Setup Time before

Turn-off of Second Supply V oltage

STANDBYQ, DVSUP

1 µs

4.6.2.2. Analog Input and Output Recommendations

Symbol Parameter Pin Name Min. Typ. Max. Unit

AGNDC

AGNDC-Filter-Capacitor AGNDC −20% 3.3 µF Ceramic Capacitor in Parallel −20% 100 nF

inSC

DC-Decoupling Capacitor in front of

SC1_IN_s

−20% 330 nF

SCART Inputs

inSC

inMONO

LSC

VMA

FMA

“s” means “L” or “R”

SCART Input Level 2.0 V Input Level, Mono Input MONO_IN 2.0 V SCART Load Resistance SC1_OUT_s SCART Load Capacitance 6.0 nF Main Volume Capacitor CAPL_M 10 µF Main Filter Capacitor DACM_s

RMS

10 kΩ

−10% 1 +10% nF

42 Micronas

Page 43

PRELIMINARY DATA SHEET MSP 34x7G

4.6.2.3. Recommendations for Analog Sound IF Input Signal

Symbol Parameter Pin Name Min. Typ. Max. Unit

VREFTOP

IF_FMTV

IF_FMRADIO

IF_FM

IF_AM

FMNI

AMNI

FM1/FM2

VREFTOP-Filter-Capacitor VREFTOP −20% 10 µF Ceramic Capacitor in Parallel −20% 100 nF Analog Input Frequency Range

for TV applications Analog Input Frequency for

ANA_IN1+, ANA_IN−

09MHz

10.7 MHz

FM-Radio Applications Analog Input Range FM/NICAM 0.1 0.8 3 V Analog Input Range AM/NICAM 0.1 0.45 0.8 V Ratio: NICAM Carrier/FM Carrier

(unmodulated carriers) BG: I:

Ratio: NICAM Carrier/AM Carrier

−20

−23

−7

−10

0 0

dB dB

−25 −11 0 dB

(unmodulated carriers) Ratio: FM-Main/FM-Sub Satellite 7 dB Ratio: FM1/FM2

7dB

German FM-System

PR SUP

MAX

Ratio: Main FM Carrier/

15 ––dB

Color Carrier Ratio: Main FM Carrier/

15 ––dB

Luma Components Passband Ripple ––±2dB Suppression of Spectrum

15 – dB

above 9.0 MHz (not for FM Radio) Maximum FM-Deviation (approx.)

normal mode HDEV2: high deviation mode HDEV3: very high deviation mode

±180 ±360 ±540

kHz kHz kHz

Micronas 43

Page 44

MSP 34x7G PRELIMINARY DATA SHEET

4.6.2.4. Crystal Recommendations

Symbol Parameter Pin Name Min. Typ. Max. Unit General Crystal Recommendations

Crystal Parallel Resonance Frequency at 12 pF Load Capacitance

Crystal Series Resistance 8 25 Ω Crystal Shunt (P arallel) Capacitance 6.2 7.0 pF External Load Capacitance

XTAL_IN, XTAL_OUT

Crystal Recommendations for FM / NICAM Applications

TOL

TEM

Accuracy of Adjustment −30 +30 ppm Frequency Variation

versus Temperature

Motional (Dynamic) Capacitance 15 fF Required Open Loop Clock

Frequency (T

= 25 °C)

amb

Crystal Recommendations for all analog FM/AM Applications

TOL

TEM

Accuracy of Adjustment −100 +100 ppm Frequency Variation

versus Temperature

18.432 MHz

PSDIP approx. 1.5 PMQFP approx. 3.3

pF pF

−30 +30 ppm

18.4305 18.4335

MHz

−50 +50 ppm

Required Open Loop Clock Frequency (T

= 25 °C)

amb

Amplitude Recommendation for Operation with External Clock Input (C V

XCA

External capacitors at each crystal pin to ground are required. They are necessary to tune the open-loop fre-

External Clock Amplitude XTAL_IN 0.7 V

18.429 18.435 MHz

after reset typ. 22 pF)

load

quency of the internal PLL and to stabilize the frequency in closed-loop operation. Due to different layouts, the accurate capacitor size should be determined with the customer PCB

. The suggested

values (1.5...3.3 pF) are figures based on experience and should serve as “start value”.

To define the capacitor size, reset the MSP and transfer only the following I

C-protocol: <80 10 0020 0060>. Measure the frequency at TP_CO-pin. Measurement at XTAL_IN/OUT pins is not possible. Change the capacitor size until the frequency matches 18.432/3 = 6.144 MHz as closely as possible. The higher the capacity, the lower the resulting clock frequency.

44 Micronas

Page 45

PRELIMINARY DATA SHEET MSP 34x7G

4.6.3. Characteristics

= 0 to 70 °C, f

at T

= 60 °C, f

at T

= Junction Temperature

CLOCK

= 18.432 MHz, V

CLOCK

= 18.432 MHz, V

SUP1

= 7.6 to 8.7 V, V

SUP1

= 8 V, V

SUP2

= 4.75 to 5.25 V for min./max. values

SUP2

= 5 V for typical values,

MAIN (M) = Loudspeaker Channel

4.6.3.1. General Characteristics

Symbol Parameter Pin Name Min. Typ. Max. Unit Test Conditions

Supply

SUP1A

SUP2A

SUP3A

SUP1S

Clock

First Supply Current (active) (AHVSUP = 8 V)

First Supply Current (active) (AHVSUP = 5 V)

Second Supply Current (active) D VSUP 55 70 mA Third Supply Current (active) AVSUP 30 38 mA First Supply Current

(AHVSUP = 8 V) First Supply Current

(AHVSUP = 5 V)

AHVSUP 14

10 11

AHVSUP 5.6 7.7 mA STANDBYQ = low

3.7 5.1 mA STANDBYQ = low

22 16

16 11

mA mA

Volume Main = 0 dB Volume Main = −30 dB

CLOCK

JITTER

xtalDC

Startup

Clock Input Frequency XTAL_IN 18.432 MHz Clock High to Low Ratio 45 55 % Clock Jitter (verification not

provided in production test) DC-Voltage Oscillator 2.5 V Oscillator Startup Time at

VDD Slew-rate of 1 V/1 µs

XTAL_IN, XTAL_OUT

0.4 2 ms

50 ps

Micronas 45

Page 46

MSP 34x7G PRELIMINARY DATA SHEET

4.6.3.2. Digital Inputs, Digital Outputs

Symbol Parameter Pi n N a m e Min. Typ. Max. Unit Test Conditions

Digital Input Levels

DIGIL

DIGIH

DIGI

DLEAK

DIGIL

DIGIH

ADRSEL

TESTEN

Digital Input Low Vo ltage STANDBYQ 0.2 V Digital Input High Voltage 0.5 V Input Impedance 5 pF Digital Input Leakage Current −11µA0V < U

Digital Input Low Voltage ADR_SEL 0.2 V Digital Input High Voltage 0.8 V Input Current Address Select Pin −500 −220 µAU

Input Capacitance TESTEN 5 pF Input Low Current −30 µAU

Digital Output Level s

DCTROL

DCTROH

Digital Output Low Voltage D_CTR_I/O_0 Digital Output High Voltage V

D_CTR_I/O_1

SUP2

−0.3

SUP2

INPUT

D_CTR_I/O_0/1: tri-state

SUP2

ADR_SEL

220 500 µAU

ADR_SEL

TESTEN

0.4 V IDDCTR = 1 mA V IDDCTR = −1 mA

< DVSUP

= DVSS = DVSUP

= AVSS

46 Micronas

Page 47

PRELIMINARY DATA SHEET MSP 34x7G

4.6.3.3. Reset Input and Power-Up

Symbol Parameter Pin Name Min. Typ. Max. Unit Test Conditions

RESETQ Input Levels

V V Z I

RES

RHL

RLH

RES

DVSUP AVSUP

4.5 V

Reset High-Low Transition Voltage RESETQ 0.3 0.4 V Reset Low-High Transition Voltage 0.45 0.55 V Input Capacitance 5 pF Input High Current 20 µAU

SUP2

RESETQ

t/ms

= DVSUP

RESETQ

0.45×DVSUP

0.3...0.4 ×DVSUP

Internal Reset

Low-to-High Threshold

Reset Delay >2 ms

High

Low

High-to-Low Threshold

Note: The reset should not reach hi gh level before the oscillator has started. This requires a reset delay of >2 ms

0.45 x DVSUP means

2.25 Volt with D VSUP = 5.0 V

t/ms

Fig. 4–20: Power-up sequence

Micronas 47

Page 48

MSP 34x7G PRELIMINARY DATA SHEET

4.6.3.4. I2C Bus Characteristics

Symbol Parameter Pi n N a m e Min. Typ. Max. Unit Test Conditions

I2CIL

I2CIH

I2C1

I2C2

I2C5

I2C6

I2C3

I2C4

I2C

I2COL

I2COH

I2COL1

I2COL2

I2C-Bus Input Low Voltage I2C_CL, I2C-Bus Input High Voltage 0.6 V I2C Start Condition Setup Time 120 ns I2C Stop Condition Setup Time 120 ns I2C-Data Setup Time

before Rising Edge of Clock I2C-Data Hold Time

after Falling Edge of Clock I2C-Clock Low Pulse Time I2C_CL 500 ns I2C-Clock High Pulse Time 500 ns I2C-BUS Frequency 1.0 MHz I2C-Data Output Low Voltage I2C_CL, I2C-Data Output

High Leakage Current I2C-Data Output Hold Time

after Falling Edge of Clock I2C-Data Output Setup Time

before Rising Edge of Clock

I2C_DA

55 ns

I2C_DA

15 ns

100 ns f

0.3 V

0.4 V I

1.0 µAV

SUP2

I2COL

I2COH

= 1 MHz

I2C

= 3 mA

= 5 V

I2C_CL

I2C_DA as input

I2C_DA as output

Fig. 4–21: I

C bus timing diagram

I2C1

I2C5

I2COL2

I2C4

1/F

I2C

I2C3

I2C6

I2COL1

I2C2

48 Micronas

Page 49

PRELIMINARY DATA SHEET MSP 34x7G

4.6.3.5. Analog Baseband Inputs and Outputs, AGNDC

Symbol Parameter Pin Name Min. Typ. Max. Unit Test Conditions

Analog Ground

AGNDC0

AGNDC Open Circuit Voltage (AHVSUP = 8 V)

AGNDC Open Circuit Voltage (AHVSUP = 5 V)

outAGN

AGNDC Output Resistance (AHVSUP = 8 V)

AGNDC Output Resistance (AHVSUP = 5 V)

Analog Input Resistance

inSC

inMONO

SCART Input Resistance from T

= 0 to 70 °C

MONO Input Resistance from T

= 0 to 70 °C

Audio Analog-to-Digital-Converter

AICL

Analog Input Clipping Level for Analog-to-Digital-Conversion (AHVSUP = 8 V)

Analog Input Clipping Level for Analog-to-Digital-Conversion (AHVSUP = 5 V)

SCART Output

outSC

OUTSC

SCtoSC

rSCtoSC

outSC

SCART Output Resistance SCn_OUT_s

Deviation of DC-Level at SCART Output from AGNDC Voltage

Gain from Analog Input to SCART Output

Frequency Response from Analog Input to SCART Output

Signal Level at SCART Output (AHVSUP = 8 V)

Signal Level at SCART Output (AHVSUP = 5V)

“s” means “L” or “R”

AGNDC 3.77 V R

2.51 V

70 125 180 kΩ 3 V ≤ V

47 83 120 kΩ

SC1_IN_s

25 40 58 kΩ f

MONO_IN 152435kΩ f

SC1_IN_s, MONO_IN

2.00 2.25 V

1.13 1.51 V

200

330 460

200

RMS

500ΩΩ

−70 +70 mV

SCn_IN_s,

−1.0 +0.5 dB f MONO_IN → SCn_OUT_s

SCn_OUT_s

−0.5 +0.5 dB with resp. to 1kHz

1.8 1.9 2.0 V

1.17 1.27 1.37 V

RMS

≥10 MΩ

load

≤ 4 V

AGNDC

= 1 kHz, I = 0.05 mA

signal

= 1 kHz, I = 0.1 mA

signal

= 1 kHz

signal

= 1 kHz, I = 0.1 mA

signal

= 27 °C

= 0 to 70 °C

= 1 kHz

signal

Bandwidth: 0 to 20000 Hz f

= 1 kHz

signal

Volume 0 dB Full Scale input from I

Micronas 49

Page 50

MSP 34x7G PRELIMINARY DATA SHEET

Symbol Parameter Pi n N a m e Min. Typ. Max. Unit Test Conditions

Main Output

outMA

outDCMA

outMA

“s” means “L” or “R”

Main Output Resistance DACM_s1)

DC-Level at Main-Output (AHVSUP = 8 V)

DC-Level at Main-Output (AHVSUP = 5 V)

Signal Level at Main-Output (AHVSUP = 8 V)

Signal Level at Main-Output (AHVSUP = 5 V)

2.1

3.3 4.6

5.0

1.80 2.04612.28 V

1.12 1.36401.60 V

1.23 1.37 1.51 V

0.76 0.90 1.04 V

kΩ kΩ

RMS

= 1 kHz, I = 0.1 mA,

signal

= 27 °C

= 0 to 70 °C

Volume Main = 0 dB Volume Main = −30 dB

= 1 kHz, full scale,

signal

Volume Main = 0 dB

4.6.3.6. Sound IF Input

Symbol Parameter Pi n N a m e Min. Typ. Max. Unit Test Conditions

DC DC

IFIN

VREFTOP

ANA_IN

Input Impedance ANA_IN1+,

ANA_IN−

1.5

6.8

9.1

2.5

11.4kΩkΩ DC Voltage at VREFTOP VREFTOP 2.4 2.65 2.75 V DC Voltage on IF Inputs ANA_IN1+,

1.3 1.5 1.7 V

ANA_IN−

Gain AGC = 20 dB Gain AGC = 3 dB

XTALK BW

Crosstalk Attenuation ANA_IN1+,

ANA_IN−

3 dB Bandwidth 10 MHz

40 dB

= 1 MHz

signal

Input Level = −2 dBr

AGC AGC Step Width 0.85 dB

4.6.3.7. Power Supply Rejection

Symbol Parameter Pi n N a m e Min. Typ. Max. Unit Test Conditions

PSRR: Rejection of Noise on AHVSUP at 1 kHz

PSRR AGNDC AGNDC 80 dB

“s” means “L” or “R”

From Analog Input to SCART Output

MONO_IN, SC1_IN_s

SC1_OUT_s

70 dB

50 Micronas

Page 51

PRELIMINARY DATA SHEET MSP 34x7G

4.6.3.8. Analog Performance

Symbol Parameter Pin Name Min. Typ. Max. Unit Test Conditions

Specifications for AHVSUP = 8 V

SNR Signal-to-Noise Ratio

from Analog Input to SCART Output

MONO_IN, SC1_IN_s

→ SC1_OUT_s

93 96 dB Input Level = −20 dB,

= 1 kHz,

sig

unweighted 20 Hz ...20 kHz

THD Total Harmonic Distortion

from Analog Input to SCART Output

MONO_IN, SC1_IN_s → SC1_OUT_s

0.01 0.03 % Input Level = −3 dBr, f

= 1 kHz,

sig

unweighted 20 Hz ...20 kHz

Specifications for AHVSUP = 5 V

SNR Signal-to-Noise Ratio

from Analog Input to SCART Output

MONO_IN, SC1_IN_s

→ SC1_OUT_s

90 93 dB Input Level = −20 dB,

= 1 kHz,

sig

unweighted 20 Hz ...20 kHz

THD Total Harmonic Distortion

from Analog Input to SCART Output

MONO_IN, SC1_IN_s → SC1_OUT_s

0.1 % Input Level = −3 dBr, f

= 1 kHz,

sig

unweighted 20 Hz ...20 kHz

CROSSTALK Specifications for AHVSUP = 8 V and 5 V

XTALK Crosstalk Attenuation Input Level = −3 dB,

= 1 kHz, unused

sig

analog inputs connected to ground by Z < 1 kΩ

“s” means “L” or “R”

between left and right channel within SCART Input/Output pair (L→R, R→L)

unweighted 20 Hz ...20 kHz

SC1_IN → SC1_OUT 80 dB between MONO Input and SCART Input 95 dB unweighted

20 Hz ...20 kHz

Micronas 51

Page 52

MSP 34x7G PRELIMINARY DATA SHEET

4.6.3.9. Sound Standard Dependent Characteristics

Symbol Parameter Pi n N a m e Min. Typ. Max. Unit Test Conditions

NICAM Characteristics (MSP Standard Code = 8)

NICAMOUT

S/N

NICAM

THD

BER fR

NICAM

XTALK SEP

NICAM

Tolerance of Output Voltage of NICAM Baseband Signal

S/N of NICAM Baseband Signal 72 dB NICAM: −6 dB, 1 kHz, RMS

Total Harmonic Distortion + Noise of NICAM Baseband Signal

NICAM: Bit Error Rate 1 10 NICAM Frequency Response,

20...15000 Hz NICAM Crosstalk Attenuat ion (Dual) 80 dB NICAM Channel Separat ion (Stereo) 80 dB

FM Characteristics (MSP Standard Code = 3)

S/N THD

FMOUT

Tolerance of Output Voltage of FM Demodulated Signal

S/N of FM Demodulated Signal 73 dB 1 FM-carrier 5.5 MHz, 50 µs, Total Harmonic Distortion + Noise

of FM Demodulated Signal

DACM_s, SC1_OUT_s

−1.5 +1.5 dB 2.12 kHz, Modulator input

level = 0 dBref

unweighted 0 to 15 kHz, Vol = 9 dB NIC_Presc = 7F Output level 1 V DACM_s

0.1 % 2.12 kHz, Modulator input level = 0 dBref

−7

FM+NICAM, norm conditions

−1.0 +1.0 dB Modulator input level = −12 dB dBref; RMS

−1.5 +1.5 dB 1 FM-carr ier, 50 µs, 1 kHz,

40 kHz deviation; RMS

1 kHz, 40 kHz deviation;

0.1 %

RMS, unweighted 0 to 15 kHz (for S/N); full input range, FM-Prescale = 46 → Output Level 1 V DACM_s

hex

RMS

, Vol = 0 d B

hex

RMS

XTALK

SEP

FM Frequency Responses,

20...15000 Hz

FM Crosstalk Attenuation (Dual) 80 dB 2 FM-carriers 5.5/5.74 MHz,

FM Channel Separation (Stereo) 50 dB 2 FM-carriers 5.5/5.74 MHz,

AM Characteristics (MSP Standard Code = 9)

S/N

THD

AM(1)

AM(2)

S/N of AM Demodulated Signal measurement condition: RMS/Flat

S/N of AM Demodulated Signal measurement condition: QP/CCIR

Total Harmonic Distortion + Noise of AM Demodulated Signal

AM Frequency Response

50...12000 Hz

1) “s” means “L” or “R”

DACM_s, SC1_OUT_s

−1.0 +1.0 dB 1 FM-ca rr ier 5.5 MHz, 50 µs, Modulator input level = −14.6 dBref; RMS

50 µs, 1 kHz, 40 kHz deviation; Bandpass 1 kHz

50 µs, 1 kHz, 40 kHz deviation; RMS

55 dB SIF level: 0.1−0.8 V

AM-carrier 54% at 6.5 MHz Vol = 0 dB, FM/AM

45 dB

prescaler set for output = 0.5 V Loudspeaker out;

0.6 %

Standard Code = 09 no video/chroma components

−2.5 +1.0 dB

RMS

hex

52 Micronas

Page 53

PRELIMINARY DATA SHEET MSP 34x7G

Symbol Parameter Pin Name Min. Typ. Max. Unit Test Conditions

BTSC Characteristics (MSP Standard Code = 20

S/N

BTSC

S/N of BTSC Stereo Signal S/N of BTSC-SAP Signal

THD

BTSC

THD+N of BTSC Stereo Signal THD+N of BTSC SAP Signal

DBX

Frequency Response of BTSC Stereo, 50 Hz...12 kHz

Frequency Response of BTSCSAP, 50 Hz...9 kHz

MNR

Frequency Response of BTSC Stereo, 50 Hz...12 kHz

Frequency Response of BTSCSAP, 50 Hz...9 kHz

XTALK

BTSC

Stereo → SAP SAP → Stereo

SEP

DBX

Stereo Separation DBX NR 50 Hz...10 kHz 50 Hz...12 kHz

, 21

hex

DACM_s, SC1_OUT_s

)

dB dB

1 kHz L or R or SAP, 100% modulation, 75

µs deempha-

sis, RMS unweighted 0 to 15 kHz

0.1

0.5

% %

1 kHz L or R or SAP, 100% 75 µs EIM

, DBX NR or MNR, RMS unweighted 0 to 15 kHz

−1.0

1.0

L or R or SAP, 1%...66% EIM

, DBX NR

−2.0 2.0 dB L or R 5%...66% EIM2), MNR

−2.0 2.0 dB SAP, white noise, 10% Modu-

lation, MNR

76 80

35 30

dB dB

1 kHz L or R or SAP, 100% modulation, 75 µs deemphasis, Bandpass 1 kHz

L or R 1%...66% EIM

, DBX

SEP

MNR

pil

Pilot

“s” means “L” or “R”

EIM refers to 75-µs Equivalent Input Modulation. It is defined as the audio-signal level which results in a stated percentage modulation,

Stereo Separation MNR 30 dB L = 300 Hz, R = 3.1 kHz

14% Modulation, MNR

Pilot deviation threshold Stereo off → on Stereo on → off

ANA_IN1+

3.2

1.2

3.5

1.5

kHz kHz

4.5 MHz carrier modulated with f

= 15.734 kHz

SIF level = 100 mV indication: STATUS Bit[6]

Pilot Frequency Range 15.563 15.843 kHz standard BTSC stereo signal,

sound carrier only

when the DBX encoding process is replaced by a 75-µs preemphasis network.

Micronas 53

Page 54

MSP 34x7G PRELIMINARY DATA SHEET

Symbol Parameter Pi n N a m e Min. Typ. Max. Unit Test Conditions

BTSC Characteristics (MSP Standard Code = 20 with a minimum IF input signal level of 70 mVpp (measured without any video/chroma signal components)

S/N

BTSC

S/N of BTSC Stereo Signal S/N of BTSC-SAP Signal

THD

BTSC

THD+N of BTSC Stereo Signal THD+N of BTSC SAP Signal

DBX

Frequency Response of BTSC Stereo, 50Hz...12 kHz

Frequency Response of BTSC-

, 21

hex

DACM_s, SC1_OUT_s

)

0.15

0.8

−1.0

1.0

dB dB

% %

SAP, 50 Hz...9 kHz

MNR

Frequency Response of BTSC Stereo, 50Hz...12 kHz

Frequency Response of BTSC-

−2.0 2.0 dB L or R 5%...66% EIM2), MNR

−2.0 2.0 dB SAP, white noise, 10% Modu-

SAP, 50 Hz...9 kHz

XTALK

SEP

DBX

BTSC

Stereo → SAP SAP → Stereo

Stereo Separation DBX NR 50 Hz...10 kHz 50 Hz...12 kHz

75 75

35 30

dB dB

1 kHz L or R or SAP, 100% modulation, 75

µs deempha-

sis, RMS unweighted 0 to 15 kHz

1 kHz L or R or SAP, 100% 75 µs EIM

, DBX NR or MNR, RMS unweighted 0 to 15 k Hz

L or R or SAP, 1%...66% EIM

, DBX NR

lation, MNR 1 kHz L or R or SAP, 100%

modulation, 75 µs deemphasis, Bandpass 1 kHz

L or R 1%...66% EIM

, DBX

SEP

MNR

“s” means “L” or “R”

EIM refers to 75-µs Equivalent Input Modulation. It is defined as the audio-signal level which results in a stated percentage modulation,

Stereo Separation MNR 30 dB L = 300 Hz, R = 3.1 kHz

14% Modulation, MNR

when the DBX encoding process is replaced by a 75-µs preemphasis network.

54 Micronas

Page 55

PRELIMINARY DATA SHEET MSP 34x7G

Symbol Parameter Pin Name Min. Typ. Max. Unit Test Conditions

EIA-J Characteristics (MSP Standard Code = 30

S/N

EIAJ

S/N of EIA-J Stereo Signal

hex

S/N of EIA-J Sub-Channel

THD

EIAJ

THD+N of EIA-J Stereo Signal THD+N of EIA-J Sub-Channel

EIAJ

Frequency Response of EIA-J Stereo, 50 Hz...12 kHz

Frequency Response of EIA-J Sub-Channel, 50 Hz...12 kHz

XTALK

EIAJ

Main → SUB Sub → MAIN

SEP

EIAJ

Stereo Separation 50 Hz...5 kHz 50 Hz...10 kHz

FM-Radio Characteristics (MSP Standard Code = 40

S/N THD

UKW

S/N of FM-Radio Stereo Signal DACM_s, THD+N of FM-Radio Stereo Signal 0.1 %

Frequency Response of FM-Radio Stereo 50 Hz...15 kHz −1.0 +1.0 dB

)

DACM_s, SC1_OUT_s

)

hex

SC1_OUT_s

0.2

0.3

−1.0

1.0

dB dB

% %

1 kHz L or R, 100% modulation, 75 µs deemphasis, RMS unweighted 0 to 15 kHz

100% modulation, 75 µs deemphasis

−1.0

66 80

1.0

dB dB

1 kHz L or R, 100% modulation, 75 µs deemphasis, Bandpass 1 kHz

EIA-J Stereo Signal, L or R 35 28

68 dB 1 kHz L or R, 100%

dB dB

100% modulation

modulation, 75 µs

deemphasis, RMS

unweighted

0 to 15 kHz

L or R, 1%...100%

modulation, 75 µs

deemphasis

SEP

UKW

Pilot

“s” means “L” or “R”

Stereo Separation 50 Hz...15 kHz 45 dB Pilot Frequency Range ANA_IN1+ 18.844 19.125 kHz standard FM radio

stereo signal

Micronas 55

Page 56

MSP 34x7G PRELIMINARY DATA SHEET

5. Appendix A: Overview of TV Sound Standards

5.1. NICAM 728

Table 5–1: Summary of NICAM 728 sound modulation parameters

Specification I B/G L D/K

Carrier frequency of digital sound

Transmission rate 728 kbit/s Type of modulation Differentially encoded quadrature phase shift keying (DQPSK) Spectrum shaping

Roll-off factor

Carrier frequency of analog sound compone nt

Powe r ratio between vision carrier and analog sound carrier

Powe r ratio between analog and modulated digital sound carrier

6.552 MHz 5.85 MHz 5.85 MHz 5.85 MHz

by means of Roll-off filters

1.0 0.4 0.4 0.4

6.0 MHz FM mono

10 dB 13 dB 10 dB 16 dB 13 dB

10 dB 7 dB 17 dB 11 dB China/

5.5 MHz FM mono

6.5 MHz AM mono 6.5 MHz FM mono

terrestrial cable

Hungary 12 dB 7 dB

Poland

Table 5–2: Summary of NICAM 728 sound coding characteristics

Characteristics Values

Audio sampling frequency 32 kHz Number of channels 2 Initial resolution 14 bit/samp le Companding characteristics near instantaneous, with compression to 10 bits/sample in 32-samples (1 ms) blocks Coding for compressed samples 2’s complement Preemphasis CCITT Recommendation J.17 (6.5dB attenuation at 800 Hz) Audio overload level +12 dBm measured at the unity gain frequency of the preemphasis network (2kHz)

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5.2. A2 Systems

Table 5–3: Key parameters for A2 Systems of Standards B/G, D/K, and M

Characteristics Sound Carrier FM1 Sound Carrier FM2

TV-Sound Standard Carrier frequency in MHz 5.5 6.5 4.5 5.7421875 6.2578125

Vision/sound power difference 13 dB 20 dB Sound bandwidth 40 Hz to 15 kHz Preemphasis 50 µs 75 µs 50 µs75 µs Frequenc y deviation (nom/max) ±27/±50 kHz ±17/±25 kHz ±27/±50 kHz ±15/±25 kHz

Transmission Modes

Mono transmissio n mono mono Stereo tran smission (L+R)/2 (L+R)/2 R (L−R)/2 Dual sound transmission language A language B

Identification of Transmission Mode

Pilot carrier frequency 54.6875 kHz 55.0699 kHz Max. deviatio n portion Type of modulation / modulation depth AM / 50%

B/G D/K M B/G D/K M

4.724212

6.7421875

5.7421875

±2.5 kHz

Modulation frequency mono: unmo dul ate d

stereo: 117.5 Hz dual: 274.1 Hz

149.9 Hz

276.0 Hz

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MSP 34x7G PRELIMINARY DATA SHEET

5.3. BTSC-Sound System

Table 5–4: Key parameters for BTSC-Sound Systems

Aural

BTSC-MPX-Components

Carrier

(L+R) Pilot (L−R) SAP Prof. Ch.

Carrier frequency (f (f

= 15.734 kHz)

hNTSC

= 15.625 kHz)

hPAL

4.5 MHz Baseband f

2 f

5 f

6.5 f

Sound bandwidth in kHz 0.05 - 15 0.05 - 15 0.05 - 12 0.05 - 3.4 Preemphasis 75 µs DBX DBX 150 µs

Max. deviation to Aural Carr ier 73 kHz

25 kHz

5kHz 50kHz1) 15 kHz 3 kHz

(total)

Max. Freq. Deviation of Subcarrier Modulation Type AM

Sum does not exceed 50 kHz due to interleaving effects

10 kHz FM

3kHz FM

5.4. Japanese FM Stereo System (EIA-J)

Table 5–5: Key parameters for Japanese FM-Stereo Sound System EIA-J

Aural

EIA-J-MPX-Components

Carrier

(L+R) (L−R) Identification

3.5 f

Carrier frequency (f

= 15.734 kHz) 4.5 MHz Baseband 2 f

Sound bandwidth 0.05 - 15 kHz 0.05 - 15 kHz − Preemphasis 75 µs75µsnone Max. deviation portion to Aural Carrier 47 kHz 25 kHz 20 kHz 2 kHz Max. Freq. Deviation of Subcarrier

Modulation Type

10 kHz FM

60%

AM Transmitter-sided delay 20 µs0 µs0 µs Mono transmission L+R − unmodulated Stereo transmission L+RL−R 982.5 Hz Bilingual transmission Language A Language B 922.5 Hz

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PRELIMINARY DATA SHEET MSP 34x7G

5.5. FM Satellite Sound

Table 5–6: Key parameters for FM Satellite Sound

Carrier Frequency Maximum

Sound Mode Bandwidth Deemphasis

FM Deviation

6.5 MHz 85 kHz Mono 15 kHz 50 µs

7.02/7.20 MHz 50 kHz Mono/Stereo/Bilingual 15 kHz adaptive

7.38/7.56 MHz 50 kHz Mono/Stereo/Bilingual 15 kHz adaptive

7.74/7.92 MHz 50 kHz Mono/Stereo/Bilingual 15 kHz adaptive

5.6. FM-Stereo Radio

Table 5–7: Key pa rameters for FM-Stereo Radio Sys tems

Aural Carrier

(L+R) Pilot (L−R) RDS/ARI

Carrier frequency (f

= 19 kHz) 10.7MHz Baseband f

Sound bandwidth in kHz 0.05 - 15 0.05 - 15

FM-Radio-MPX-Components

2 f

3 f

Preemphasis:

− USA

− Europe

Max. deviation to Aural Carrier 75 kHz

(100%)

Sum does not exceed 90% due to interleaving effects.

75 µs 50 µs

90%

75 µs 50 µs

10% 90%

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6. Appendix B: Manual/Compatibility Mode

To adapt the modes of the STANDARD SELECT register to individual r equiremen ts and for reasons of com- patibility to the MSP 34x7D, the MSP 34x7G offers an Manual/Compatibility Mode, which provides sophisticated programming of the MSP 34x7G.

Using the STANDARD SELECT regist er ge nera lly pr ovides a more economic way to program the MSP 34x7G and will result in optimal b ehavior. There-

fore, it is not recommend to use the Manual/Compatibility mode. In those cases, where the

MSP 34x7D is to be substituted by the MSP 34x7G, the tips given in Section 6.9. on page 74 have to be obeyed by the controller software.

6.1. Demodulator Write and Read Registers for Manual/Compatibility Mode

Table 6–1: Demodulator Write Registers; Subaddress: 10

Demodulator Write Registers

AUTO_FM/AM 00 21 3417,

A2_Threshold 00 22 all A2 Stereo Identification Threshold 00 19 CM_Threshold 00 24 all Carrier-Mute Threshold 00 2A AD_CV 00 BB all SIF-input selection, configuration of AGC, and Carrier-Mute Function 00 00 65 MODE_REG 00 83 3417,

Address (hex)

MSPVersion

3457

Description Reset

1. MODUS[0]=1 (Automatic Sound Select): Switching Level threshold of

Automatic Switching between NICAM and FM/AM in case of bad NICAM reception

2. MODUS[0]=0 (Manual Mode): Activation and configuration of Automatic Switching between NICAM and FM/AM in case of bad NICAM reception

Controlling of MSP-Demodulator and Interface options. As soon as this register is applied, the MSP 34x7G wor ks in the MSP 34x7D compatibility

mode. Warning: In this mode, BTSC, EIA-J, and FM-Radio are disabled. Only

MSP 34x7D features are available; the use of MODUS and STAT US regist er is not allowed.

The MSP 34x7G MODUS register followed by transmitting a valid standard code to the STANDARD SELECTION register.

is reset to the normal mode by first programming the

; these registers are not readable!

hex

Mode

00 00 62

hex

00 00 67

Page

64 64

FIR1 FIR2

DCO1_LO DCO1_HI

DCO2_LO DCO2_HI

Note: All registers except AUTO_FM /AM, A2_Threshold, and CM_Threshold are initialized during STANDARD SE LECT ION and are automatically updated when Automatic Sound Select (MODUS[0]=1) is on.

00 01 00 05

00 93 00 9B

00 A3 00 AB

FIR1-filter coefficients channel 1 (6 ⋅ 8 bit) FIR2-filter coefficients channel 2 (6 ⋅ 8 bit), + 3 ⋅ 8 bit offset (total 72 bit)

Increment channel 1 Low Part Increment channel 1 High Part

Increment channel 2 Low Part Increment channel 2 High Part

00 00 68

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Table 6–2: Demodulator Read Registers; Subaddress: 11

Demodulator Read Registers

C_AD_BITS 00 23 3417, ADD_BITS 00 38 NICAM: bit [10:3] of additional data bits 70 CIB_BITS 00 3E NICAM: CIB1 and CIB2 control bits 70 ERROR_RATE 00 57 NICAM error rate, updated with 182 ms 71 PLL_CAPS 02 1F Not for customer use. 71 AGC_GAIN 02 1E Not for customer use. 71

Address (hex)

MSPVersion

3457

Description Page

NICAM-Sync bit, NICAM-C-Bits, and three LSBs of additional data bits 70

; these registers are not writable!

hex

6.2. DSP Write and Read Registers for Manual/Compatibility Mode

Table 6–3: DSP-Write Registers; Subaddress: 12

Write Register Address

(hex)

Bits Operational Modes and Adjustable Range Reset

, all registers are readable as well

hex

Mode

Page

Volume SCART1 channel: Ctrl. mode 00 07 [7:0] [Linear mode / logarithmic mode] 00 FM Fixed Deemphasis 00 0F [15:8] [50 µs, 75 µs, J17, OFF] 50 µs72 FM Adaptive Deemphasis [7:0] [OFF, WP1] OFF 72 Identification Mode 00 15 [7:0] [B/G, M] B/G 73 FM DC Notch 00 17 [7:0] [ON, OFF] ON 73

Table 6–4: DSP Read Registers; Subaddress: 13

Additional Read Registers

Stereo detection register for A2 Stereo Systems

DC level readout FM1/Ch2-L 00 1B [15:0] [8000 DC level readout FM2/Ch1-R 00 1C [15:0] [8000

Address (hex)

00 18 [15:8] [80

Bits Output Range Page

, all registers are not writable

hex

... 7F

hex

] 8 bit two’s comple ment 73

hex

... 7FFF

hex

... 7FFF

hex

] 16 bit two’s c omplem ent 73

hex

] 16 bit two’s c omplem ent 73

hex

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ERROR_RATE

Selected Sound

NICAM

analog sound

thresholdthreshold/2

6.3. Manual/Compatibility Mode: Description of Demodulator Write Registers

6.3.1. Automatic Switching between NICAM and

Analog Sound

In case of bad NICAM reception or loss of the NICAM-carrier, the MSP 34x7G offers an Automatic Switching (fall back) to the analog sound (FM/AMmono), without the necessity for the controller of reading and evaluating any parameters. If a proper NICAM signal return s, switching back to th is source is performed automatically as well . T h e feature evaluates th e NIC AM ERROR_RATE and switches, if necessary, all output channels which are assigned to the NICAM-source, to the analog source, and vice versa.

An appropriate hysteresis algorithm avoids oscillating effects (see Fig. 6–1). STATUS[9] and C_AD_BITS[11] (Addr: 0023 hex) provide information about the actual NICAM-FM/AM-status.

6.3.1.1. Function in Automatic Sound Select Mode

The Automatic Sound Select feature (MODUS[0]=1) includes the procedure mentioned above. By default, the internal ERROR_RATE threshold is set to 700

dec

. i.e.:

– NICAM → analog Sound if ERROR_RATE > 700 – analog Sound → NICAM if ERROR_RATE < 700/2

The ERROR_RATE value of 700 corresponds to a BER of approximately 5.46*10

-3

/s.

Individual config uration of the threshold can be done using Table 6–5. We recommend to use the internal setting used by the standard selection.

The optimum NICAM sound can be assigned to the MSP output chann els by selecting one of the “Stereo or A/B”, “Stereo or A”, or “Stereo or B” source channels

6.3.1.2. Function in Manual Mode

If the manual mode (MODUS[0]=0) is required, the activation and configuration of the Automatic Switching feature has to be done as described in Table 6–6. Note, that the channel matrix of the corresponding output-channels must be set according to the NICAM-mode and need not to be changed in the FM/ AM-fallback case.

Fig. 6–1: Hysteresis for Automatic Switching

Table 6–5: Coding of Automati c NICA M/Anal og Sou nd Swi tc hin g;

Automatic Sound Select is on (MODUS[0] = 1)

Mode Description AUTO_FM [11:0]

1 Default

2 Automatic Switching with

3 Forced Analog Mono bit[11] = 1

The NICAM path may be assigned to “Stereo or A/B”, “Stereo or A”, or “Stereo or B” sourc e chan nel s (see Table 2–2 on page 11).

Automatic Switching with

internal threshold

external threshold

(Customizing of Automatic Sound Select)

Addr. = 00 21

bit[11:0] = 0 700 N ICA M or FM/AM,

bit[11] = 0 bit[10:1] = 25...1000

= threshold/2

bit[0] = 1

bit[10:1] = ignored bit[0] = 1

Example: Required threshold = 500: bits[10:1] = 00 1111 1010

hex

ERROR_RATEThreshold/dec

set by customer; recommended range: 50...2000

Source Select: Input at NICAM Path

depending on ERROR_RATE

always FM/AM

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Table 6–6: Coding of Automatic NICAM/Analog Sound Switching;

Automatic Sound Select is off (MODUS[0] = 0)

Mode Description AUT O_FM [11:0]

0 reset status

1 Automatic Switching with

2 Automatic Switching with

3 Forced Analog Mono

Forced NICAM (Automatic Switching disabled)

internal threshold (Default, if Automatic Sound Select is on)

external threshold (Customizing of Automatic Sound Select)

(Automatic Switching disabled)

Addr. = 00 21

bit[11] = 0 bit[10:1] = 0 bit[0] = 0

bit[11] = 0 bit[10:1] = 0 bit[0] = 1

bit[11] = 0 bit[10:1] = 25...1000

bit[0] = 1 bit[11] = 1

bit[10:1] = 0 bit[0] = 1

hex

= threshold/2

ERROR_RATEThreshold/dec

none always NICAM; Mute in

700 NICAM or FM/AM,

set by customer; recommended range: 50...2000

none always FM/AM

Source Select: Input at NICAM Path

case of no NICAM available

depending on ERROR_RATE

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6.3.2. A2 Threshold

The threshold between Stereo/Bilingual and Mono Identification for the A2 Standard has bee n made programmable according to the user’s preferences. An internal hysteresis ensures robustness and stability.

Table 6–7: Write Register on I

C Subaddress 10

: A2 Threshold

hex

Function Name

Address THRESHOLDS

00 22

(write) A2 THRESHOLD Register

hex

Defines threshold of all A2 and EIA_J standards for Stereo and Bilingual detection

bit[15:0] 07F0

force Mono Identif ication

hex

... 0190

default setting after reset

hex

... 00A0

recommended range : 00A0

minimum Threshold for stable detection

hex

6.3.3. Carrier-Mute Threshold

The Carrier-Mute threshold has been made programmable according to the user’s preferences. An inter nal hysteresis ensures stable behavior.

...03C0

A2_THRESH

hex

Table 6–8: Write Register on I2C Subaddress 10

Function Name

Address THRESHOLDS

00 24

(write) Carrier-Mute THRESHOLD Register

hex

Defines threshold for the carrier mute feature bit[15:0] 0000

Carrier-Mute always ON (both channels muted)

hex

... 002A

default setting after reset

hex

... 07FF

Carrier-Mute always OFF

hex

(both channels forced on)

recommended range : 0014

: Carrier-Mute Threshold

hex

...0050

hex

CM_THRESH

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6.3.4. Register AD_CV

The use of this register is no longer recommended. Use it only in cases where compatibility to the MSP 34x7D is required. Using the STANDARD SELECTION register together with the MODUS register provides a more economic way to program the MSP 34x7G

Table 6–9: AD_CV Register; reset status: all bits are “0”

AD_CV

hex

)

(00 BB

Bit Function Settings 2-8, 0A-51

Automatic setting by STANDARD SELECT Register

hex

[0] not used must be set to 0 0 0 [1:6] Reference level in case of Automatic Gain

101000 100011 Control = on (see Table 6–10). Constant gain factor when Automatic Gain Control = off (see Table 6–11).

[7] Determination of Automatic Gain or

Constant Gain

0 = constant gain 1 = automatic gain

[8] not used must be set to 0 0 0 [9] MSP-Carrier-Mute Feature 0 = off: no mute

1 = on: mute as de-

scribed in Section 2.2.2. [10:15] not used must be set to 0 0 0 X: not affected while choosing the TV sound standard by means of the STANDARD SELECT Register

Note: This register is initialized during STANDARD SELECTION and is automatically updated when Automatic Sound Select (MODUS[0]=1) is on.

Table 6–10: Reference values for active AGC (AD_CV[7] = 1)

Application Input Signal Contains AD_CV [6:1]

Ref. Value

Terrestrial TV

− Dual Carrier FM

− NICAM/FM

− NICAM/AM

− NICAM only

2 FM Carriers 1 FM and 1 NICAM Carrier 1 AM and 1 NICAM Carrier

1 NICAM Carrier only

101000 101000 100011

010100

SAT 1 or more FM Carriers 100011 35 0.10 − 3 V

For signals above 1.4 Vpp, the minimum gain of 3 dB is switched, and overflow of the A/D converter may result. Due to the robustness of the internal processing, the IC works up to and even more than 3 Vpp, if norm conditions of FM/NICAM or FM1/FM2 ratio are supposed. In this overflow case, a loss of FM-S/N-ratio of about 10 dB may appear.

AD_CV [6:1] in decimal

40 40 35

Range of Input Signal at pin ANA_IN1+

0.10 − 3 V

0.10 − 1.4 V (recommended: 0.10 − 0.8 Vpp)

0.05 − 1.0 V

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Table 6–11: AD_CV parameters for constant input gain (AD_CV[7]=0)

Step AD_CV [6:1]

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

For signals above 1.4 Vpp, the minimum gain of 3 dB is switched, and overflow of the A/D converter may result. Due to the

robustness of the internal processing, the IC works up to and even more than 3 Vpp, if norm conditions of FM/NICAM or FM1/FM2 ratio are supposed. In this overflow case, a loss of FM-S/N-ratio of about 10 dB may appear.

Constant Gain

000000 000001 000010 000011 000100 000101 000110 000111 001000 001001 001010 001011 001100 001101 001110 001111 010000 010001 010010 010011 010100

Gain Input Level at pin ANA_IN1+ and ANA_IN2+

3.00 dB

3.85 dB

4.70 dB

5.55 dB

6.40 dB

7.25 dB

8.10 dB

8.95 dB

9.80 dB

10.65 dB

11.50 dB

12.35 dB

13.20 dB

14.05 dB

14.90 dB

15.75 dB

16.60 dB

17.45 dB

18.30 dB

19.15 dB

20.00 dB

maximum input level: 3 V

maximum input level: 0.14 V

(FM) or 1 Vpp (NICAM)

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6.3.5. Register MODE_REG

disabled. Only MSP 34x7D features are available; the

use of MODUS and STATUS register is not allowed. Note: The use of this register is no longer recommended. It should be used on ly in cases where software compatibility to the MSP 34x7D is required. Using the STANDARD SELECTION register together

The MSP 34x7G is reset to the nor mal mode by first

programming the MODUS registe r, followed by trans-

mitting a valid standard code to the STANDARD

SELECTION register. with the MODUS register provides a more economic way to program the MSP 34x7G.

The register ‘MODE_REG’ contains the control bits

determining the operation mode of the MSP 34x7G in As soon as this register is applied, the MSP 34x7G works in the MSP 34x7D Manual/Compatibility

the MSP 34x7D Manual/Compatibility Mode; Table 6–

12 explains all bit positions.

Mode. In this mode, BTSC, EIA-J, and FM-Radio are

Table 6–12: Control word ‘MODE_REG’; reset status: all bits are “0”

MODE_REG 00 83

Bit Function Comment Definition 2 - 5 8,A,B 9

[0] not used 0 : must be used 0 0 0 [1] DCTR_TRI Digital control out

0/1 tri-state

hex

0 : active 1 : tri-state

Automatic setting by STANDARD SELECT Register

XXX

[2] not used 1 : recommended X X X [3] not used 0 : must be used X X X [4] not used 0 : must be used X X X [5] not used 1 : recommended X X X [6] NICAM Mode of MSP-Ch1 0 : FM

[7] not used 0 : must be used 0 0 0 [8] FM AM Mode of MSP-Ch2 0 : FM

[9] HDEV High Deviation Mode

[11:10] not used 0 : must be used 0 0 0 [12] MSP-Ch1 Gain see also Table 6–14 0 : Gain = 6 dB

[13] FIR1-Filter

Coeff. Set

[14] not used 0 : recommended 0 0 0

(channel matrix must be sound A)

6.4. Manual/Compatibility Mode: Description of Demodulator Read Registers

Note: The use of these register is no longer recom-

mended. It should be use d only in cases where software compatibility to the MSP 34x7D is required. Using the STANDARD SELECTION register together with the STATUS register provides a more economic way to program the MSP 34x7G and to retrieve information from the IC.

All registers except C_AD_BITs are 8 bit wide. They can be read out of the RAM of the MSP 34x7G if the MSP 34x7D compatibility mode is required.

All transmissions take place in 16 -bit words. The valid 8-bit data are the 8 LSBs of the received data word.

If the Automatic Sound Select feature is n ot used, the NICAM or FM-identification pa rameters must be read and evaluated by the controller in order to enable appropriate switching of the channel select matrix of the baseband processing part. The FM-identification registers are descr ibed i n Section 6.6.1. To h andle the NICAM-sound and to observe the NICAM-quality, at least the registers C_AD_BITS and ERROR_RATE must be read and evaluated by the controller. Additional data bits a nd CIB b its, if su pplied by the NICAM transmitter, can be obtained by reading the registers ADD_BITS and CIB_BITS.

Table 6–16: NICAM operation modes as defined by the EBU NICAM 728 specification

C4 C3 C2 C1 Operation Mod e

0 0 0 0 Stereo sound (NICAMA/B),

independent mono sound (FM1)

0 0 0 1 Two independent mono signals

(NICAMA, FM1)

0 0 1 0 Three independent mono channels

(NICAMA, NICAMB, FM1) 0 0 1 1 Data transmission only; no audio 1 0 0 0 Stereo sound (NICAMA/B), FM1

carries same channel 1 0 0 1 One mono signal (NICAMA). FM1

carries same channel as NICAMA 1 0 1 0 Two independent mono channels

(NICAMA, NICAMB). FM1 carries

same channel as NICAMA 1 0 1 1 Data transmission only; no audio x 1 x x Unimplemented sound coding

option (not yet defined by EBU

NICAM 728 specification) AUTO_FM: monitor bit for the AUTO_FM Status:

0: NICAM source is NICAM 1: NICAM source is FM

6.4.1. NICAM Mode Control/Additional Data Bits Register

NICAM operation mode control bits and A[2:0] of the additional data bits.

Format:

MSB C_AD_BITS 00 23

11...76543210

Auto

... A[2] A[1] A[0] C4 C3 C2 C1 S

_FM

hex

LSB

Important: “S” = bit[0] indicates correct NICAM-syn-

chronization (S = 1). If S = 0, the MSP 3417/3457G has not yet synchronized correctly to frame and sequence, or has lost synchronization. T he remaining read registers are therefore not valid. The MSP mutes the NICAM output au tomatically and trie s to synchronize again as long as MODE_REG[6] is set.

The operation mode is coded by C4-C1 as s hown in Table 6–16.

Note: It is no longer necess ar y to read out and evaluate the C_AD_BITS. All evaluation is performed in the MSP and indicated in the STATUS register.

6.4.2. Additional Data Bits Register

Contains the remaining 8 of the 11 additional data bits. The additional data bits are not yet defined by the NICAM 728 system.

Format:

MSB ADD_BITS 00 38

76543210

A[10] A[9] A[8] A[7] A[6] A[5] A[4] A[3]

hex

LSB

6.4.3. CIB Bits Register

Cib bits 1 and 2 (see NICAM 728 specifications). Format:

MSB CIB_BITS 00 3E

76543210

hex

LSB

xxxxxxCIB1CIB2

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6.4.4. NICAM Error Rate Register

ERROR_RATE 00 57

Error free 0000 maximum error rate 07FF

hex

Average error rate of the NICAM reception in a time interval of 182 ms, which should be close to 0. The initial and maximum value of ERROR_RATE is 2047. This value is also active if the NICAM bit of MODE_REG is not se t. Sinc e the value i s achieved by filtering, a cer tain transition time (approx. 0.5 sec) is unavoidable. Acceptable audio may have error rates up to a value of 700 int. Individual evaluation of this value by the controller and an appropriate threshold may define the fallback mode from NICAM to FM/ AM-mono in case of poor NICAM reception.

The bit error rate per second (B ER) can be calculat ed by means of the following formula:

−6

BER= ERROR_RATE * 12.3*10

6.4.5. PLL_CAPS Readback Register

It is possible to read out the actual setting of the PLL_CAPS. In standard applications, this register is not of interest for the customer.

PLL_CAPS 02 1F

hex

6.4.7. Automatic Search Function for FM-Carrier Detection in Satellite Mode

The AM demodulation ability of the MSP 3417G and MSP 3457G offers the possibility to calculate the “field strength” of the momentarily selected FM carrier, which can be read ou t by the con troll er. In SAT recei vers, this feature can be used to make automatic FM carrier search possible.

For this, the MSP has to be switched to AM-mode (MODE_REG[8]), FM-Prescale must be set to 7F

hex

=+127

, and the FM DC notch (see

dec

Section 6.5.7.) must be switched off. The sound-IF frequency range must now be “scanned” in the MSP-channel 2 by means of the programmable quadrature mixer with an approp riate incremental fre quency (i.e. 10 kHz). After each incrementation, a field strength value is available at the qua si-peak detector output (quasi-peak detector source must be set to FM), which must be examined for relative maxima by the controller. This result s in either continuing s earch or switching the MSP back to FM demodulation mode.

During the se arch process, the FIR2 must be loaded with the coefficient set “AUTOSEARCH”, which enables small bandwidth , resulting in approp riate field strength characteristics. The absolute field strength value (can be read out o f “quasi peak dete ctor output FM1”) also gives information on whether a main FM carrier or a subcarrier was detected; and as a practical consequence, the FM bandwidth (FIR1/2) and the deemphasis (50 µs or adaptive) can be switched accordingly.

minimum frequency 1111 1111 FF nominal frequency 0101 0110 56

RESET

maximum frequency 0000 0000 00

PLL_CAPS 02 1F

PLL open xxxx xxx0 PLL closed xxxx xxx1

hex

6.4.6. AGC_GAIN Readback Register

It is possible to read out the actual setting of AGC_GAIN in Automatic Gain Mode. In standard applications, this re gister is not of i nterest for the customer .

AGC_GAIN 02 1E

max. amplification (20 dB)

min. amplification (3 dB)

hex

0001 0100 14

0000 0000 00

hex

Due to the fact that a constant demodulation frequency offset of a few kHz, lea ds to a DC level in the demodulated signal, further fine tu ni ng o f th e found ca rr i er c an be achieved by evaluating the “DC Level Readout FM1”. Therefore, the FM DC Notch must be switched on, and the demodulator part must be switched back to FM-demodulation mode.

For a detailed description of the automatic search function, please refer to the correspo nding MSP Windows software.

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MSP 34x7G PRELIMINARY DATA SHEET

6.5. Manual/Compatibility Mode: Description of DSP Write Registers

6.5.1. Additional Channel Matrix Modes

Loudspeaker Matrix 00 08 SCART1 Matrix 00 0A Quasi-Peak

Detector Matrix

00 0C

hex

SUM/DIFF 0100 0000 40 AB_XCHANGE 0101 0000 50 PHASE_CHANGE_B 0110 0000 60 PHASE_CHANGE_A 0111 0000 70 A_ONLY 1000 0000 80 B_ONLY 1001 0000 90

L L L

hex

This table shows more mode s for the channel matrix registers.

The sum/difference mode can be used together with the quasi-peak detecto r to determine th e sound material mode. If the di fference signal on channel B (right) is near to zero, and the sum signal on cha nnel A (left) is high, the incomi ng a udi o s ignal i s m ono. If there is a significant level on the difference signal, the incom ing audio is stereo.

6.5.2. Volume Modes of SCART1 Output

Volume Mode SCART1 00 07

linear 0000 0

logarithmic 0001 1

Linear Mode Volume SCART1 00 07

OFF 0000 0000 00

0 dB gain (digital full scale to 2 V

RMS

output)

+6 dB gain (−6 dBFS to

output)

RMS

hex

RESET

hex

RESET 0100 0000 40

0111 1111 7F

6.5.3. FM Fixed Deemphasis

FM Deemphasis 00 0F

50 µs 0000 0000 00

75 µs 0000 0001 01 J17 0000 0100 04 OFF 0011 1111 3F

hex

RESET

[3:0]

hex

Note: This register is initialized during STANDARD SELECTION and is automatically updated when Automatic Sound Select (MODUS[0]=1) is on.

6.5.4. FM Adaptive Deemphasis

FM Adaptive Deemphasis WP1

OFF 0000 0000 00

WP1 0011 1111 3F

00 0F

RESET

hex

Note: This register is initialized during STANDARD SELECTION and is automatically updated when Automatic Sound Select (MODUS[0]=1) is on.

6.5.5. NICAM Deemphasis

A J17 Deemphasis is always applied to the NICAM signal. It is not switchable.

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6.5.6. Identification Mode for A2 Stereo Systems

Identification Mode 00 15

Standard B/G (German Stereo)

Standard M (Korean Stereo)

Reset of Ident-Filter 0011 1111 3F

hex

0000 0000 00 RESET

0000 0001 01

hex

To shorten the response ti me of the i den tific ati on al gorithm after a p rogram change between two F M-Stereo capable programs, the reset of the ident-filter can be applied.

Sequence:

1. Program change

2. Reset ident-filter

3. Set identification mode back to standard B/G or M

4. Wait approx. 500 ms

5. Read stereo detection register Note: This register is initialized during STANDARD

SELECTION and is automatically updated when Automatic Sound Select (MODUS[0]=1) is on.

6.6. Manual/Compatibility Mode: Description of DSP Read Registers

All readable registers are 16-bit wide. Transmissions

C bus have to take place in 16-bit words. Some of

via I the defined 16-bit words are divided into low and high byte, thus holding two different control entities.

These registers are not writable.

6.6.1. Stereo Detection Register

for A2 Stereo Systems

Stereo Detection Register

MONO near zero STEREO positive value (ideal

BILINGUAL negative value (ideal

00 18

hex

reception: 7F

reception: 80

hex

hex)

)

Note: It is no longer necessary to read out and evaluate the A2 identification level. All evaluation is performed in the MSP a nd ind ic ate d in th e S TATUS regi s ter.

6.5.7. FM DC Notch

The DC compensation filter (FM DC Notch) for FM input can be switched off. This is used to spee d up the automatic search functio n (see Section 6.4.7.). In normal FM-mode, the FM DC Notch shou ld be switched on.

FM DC Notch 00 17

ON 0000 0000 00

OFF 0011 1111 3F

hex

Reset

hex

6.6.2. DC Level Register

DC Level Readout FM1 (MSP-Ch2)

DC Level Readout FM2 (MSP-Ch1)

DC Level [8000

00 1B

hex

00 1C

hex

... 7FFF

hex

values are 16 bit two’s complement

H+L

hex

]

The DC level register measures the D C componen t of the incoming FM s ignals (FM 1 and FM2). T his can be used for seek functions in satellite receivers and for IF FM frequencies fine tuning. A too low demodulation frequency (DCO) results in a positive DC-Level and vice versa. For further processing, the DC content of the demodulated FM signals is suppressed. Th e time constant τ, defining the transition time of the DC Level Register, is approximately 28 ms.

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MSP 34x7G PRELIMINARY DATA SHEET

6.7. Demodulator Source Channels in Manual Mode

6.7.1. Ter restric Sound Standards

Ta b le 6 –17 s hows the source ch annel assignment of the demodulated signals in case of manual mode for all terrestric sound standards. See Table 2–2 for the assignment in the Automatic Sound Select mode. In manual mode for terrestric s ound standards, only two demodulator sources are defined.

6.7.2. SAT Sound Standards

Table 6–18 shows the source channel assignment of the demodulated signals for SAT sound standards.

6.8. Excl usions of Audio Baseband Features

In general, all fun ctions can be switched indepen dently. Two exceptions exist:

1. NICAM cannot be processed simultaneously with the FM2 channel.

2. FM adaptive deemphasis cannot be processed simultaneously with FM-identification.

6.9. Compatibility Restrictions to MSP 34x7D

The MSP 34x7G is fully hardware compatible to the MSP 34x7D. However, to substitute a MSP 34x7D by the corresponding MS P 34x7G, the controller so ftware has to be adapted slightly:

1. The register FM-Matrix (00 0E changed from “no matr ix (00

)” during mono transmission of all TV-sound

(03

hex

low part) must be

hex

)” to “sound A mono

hex

standards (see also Tabl e 6–17).

2. With the MSP 34x7G, the STANDARD SELECTION initializes the FM-deemphasis, which is not the case for the MSP 34x7D. So, if STANDARD SELECTION is applied, this I

C instruction can be omitted.

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PRELIMINARY DATA SHEET MSP 34x7G

Table 6–17: Manual Sound Select Mode for Terrestric Sound Standards

Source Channels of Sound Select Block

Broadcasted Sound Standard

B/G-FM D/K-FM M-Korea M-Japan

B/G-NICAM L-NICAM I-NICAM D/K-NICAM D/K-NICAM

(with high deviation FM)

BTSC

Selected MSP Standard Code

03 04, 05 02 30

08 09 0A 0B 0C 0D

Broadcasted Sound Mode

FM Matrix FM/AM

(use 0 for channel select)

Stereo or A/B

(use 1 for channel select)

MONO Sound A Mono Mono Mono STEREO German Stereo

Stereo Stereo

Korean Stereo

BILINGUAL, Languages A and B

NICAM not available or NICAM error rate too high

MONO Sound A Mono STEREO Sound A Mono BILINGUAL,

Languages A and B

No Matrix Left = A

Right = B

Sound A Mono

analog Mono no sound

analog Mono NICAM Mono

analog Mono NICAM Stereo

analog Mono Left = NICAM A

Left = A Right = B

with AUTO_FM: analog Mono

Right = NICAM B MONO Sound A Mono Mono Mono STEREO Korean Stereo Stereo Stereo MONO + SAP Sound A Mono Mono Mono STEREO + SAP Korean Stereo Stereo Stereo MONO

Sound A Mono Mono Mono

STEREO MONO + SAP

No Matrix

STEREO + SAP

Left = Mono Right = SAP

Left = Mono

Right = SAP

FM-Radio 40

MONO Sound A Mono Mono Mono STEREO Korean Stereo Stereo Stereo

Automatic refresh to Sound A Mono, do not write any other value to the register FM Matrix!

Table 6–18: Manual Sound Select Modes for SAT-Standards

Source Channels of Sound Select Block for SAT-Modes

Broadcasted Sound Standard

FM SAT

Selected MSP Standar d Code

6, 50

hex

Broadcasted Sound Mode

MONO Sound A Mono Mono Mono Mono Mono STEREO No Matrix Stereo Stereo Stereo Stereo BILINGUAL No Matrix Left = A (FM1)

FM Matrix FM/AM

(source select: 0)

Right = B (FM2)

Stereo or A/B

(source select: 1)

Left = A (FM1) Right = B (FM2)

Stereo or A

(source select: 3)

A (FM1) B (FM2)

Stereo or B

(source select: 4)

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MSP 34x7G PRELIMINARY DATA SHEET

7. Appendix D: Application Information

7.1. Phase Relationship of Analog Outputs

The user does not need to correct output phases when using the loudspeaker output directly. The SCART1 output has opposite phase.

The following schematics shows the phase relationship of all analog inputs and outputs.

Loudspeaker

SCART1

SCART

DSP Input

Select

MONO

Fig. 7–1: Phase diagram of the MSP 34x7G

Audio

Baseband

Processing

MONO, SCART1

SCART1-Ch.

SCART1

SCART

Output Select

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PRELIMINARY DATA SHEET MSP 34x7G

7.2. Application Circuit

Signal GND

Tuner

330 nF

330 nF 330 nF

SIF 1 IN

56 pF 56 pF

MONO_IN

SC1_IN_L SC1_IN_R

C s. section 4.6.2.

100

10 µF

3.3 µF100

18.432 MHz

8V (5V)

10 µF

100 p 56 p

1kΩ

ANA_IN1+

Alternative circuit for SIF-input for more attenuation of video components:

AGNDC

ANA_IN−

ANA_IN1+

VREFTOP

XTAL_IN

XTAL_OUT

CAPL_M

DACM_L

DACM_R

1 nF

1 µF

Loudspeaker

DVSS

RESETQ (from Controller, see section 4.6.3.3.)

STANDBYQ

ADR_SEL

I2C_DA I2C_CL

MSP 34x7G

DVSUP

RESETQ

220 pF 470 pF

1.5 nF

10 µF

5 V 5 V 8 V

AVSUP

DVSS

470 pF

1.5 nF 10 µF

AVSS

AHVSUP 470

1.5 nF 10 µF

(5 V)

SC1_OUT_L

SC1_OUT_R

D_CTR_I/O_0 D_CTR_I/O_1

AHVSS

VREF1

AHVSS

TESTEN

VREF2

AHVSS

100Ω

22 µF

AHVSS

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8. Appendix E: MSP 34x7G Version History

MSP 34x7G-B6

– improved AM-performance (see page 52) – new D/K standard for Poland

(see Table 3–7 on page 18)

– improved I

C hardwa re proble m handling

(see Section 3.1.1. on page 14)

– faster system-D/K-loop for stereo detection – extended features in the CONTROL register

(see Section 3.1.2. on page 15)

MSP 34x7G-B8

– fine-tuning of A2-identification and carrier mute – EIA-J identification: faster transition time stereo/

bilingual to mono

– J17 FM-deemphasis implemented – input specification for RESETQ and TESTEN

changed

9. Data Sheet History

1. Preliminary data sheet: “MSP 34x7G Multistandard Sound Processor Family”, Edition Sept. 7, 2000, 6251-535-1PD. First releas e of t h e pr el im in ary data sheet.

2. Preliminary data sheet: “MSP 34x7G Multistandard Sound Processor Family”, Jan. 19, 2001, 6251-535-2PD . Second release of the preliminary data sheet. Major changes:

– I

C-bus description changed

– ACB register: documentation for bit allocation

D_CTR_I/O changed

Micronas GmbH Hans-Bunte-Strasse 19 D-79108 Freiburg (Germany) P.O. Box 840 D-79008 Freiburg (Germany) Tel. +49-761-517-0 Fax +49-761-517-2174 E-mail: docservice@micronas.com Internet: www.micronas.com

Printed in Germany Order No. 6251-535-2PD

All information and data contained in this data sheet are without any commitment, are not to be considered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. Any new issue of this data sheet invalidates previous issues. Product availability and delivery are exclusively subject to our respective order confirmation form; the same applies to orders based on development samples delivered. By this publication, Micronas GmbH does not assume responsibility for patent infr ingements or other right s of third parties whic h may result from its use. Further, Micronas GmbH reserves the right to revise this publication and to make changes to its content, at any time, without obligation to notify any pe r so n or en tity of such revisions or cha ng es. No part of this publication may be reproduced, photocopied, stored on a retrieval system, or transmitted without the express written consent of Micronas GmbH .

78 Micronas

Datasheet MSP3467G, MSP3457G, MSP3447G, MSP3417G, MSP3427G Datasheet (Micronas Intermetall)

Specifications and Main Features

Frequently Asked Questions

User Manual

1. Introduction

2. Functional Description

2.2. Sound IF Processing

2.2.1. Analog Sound IF Input

2.2.2. Demodulator: Standards and Features

2.2.3. Preprocessing of Demodulator Signals

2.2.4. Automatic Sound Select

2.2.5. Manual Mode

2.3. Preprocessing for SCART

2.4. Source Selection and Output Channel Matrix

2.5. Audio Baseband Processing

2.5.1. Automatic Volume Correction (AVC)

2.5.2. Quasi-Peak Detector

2.6. SCART Signal Routing

2.6.1. SCART DSP In and SCART Out Select

2.6.2. Stand-by Mode

2.7. Digital Control I/O Pins and Status Change Indication

3. Control Interface

3.1.1. Internal Hardware Error Handling

3.1.2. Description of CONTROL Register

3.1.3. Protocol Description

3.1.4.1. Symbols

3.1.4.2. Write Telegrams

3.1.4.3. Read Telegrams

3.1.4.4. Examples

3.3.1. User Registers Overview

3.3.2. Description of User Registers

3.3.2.1. STANDARD SELECT Register

3.3.2.2. Refresh of STANDARD SELECT Register

3.3.2.3. STANDARD RESULT Register

3.4. Programming Tips

3.5. Examples of Minimum Initialization Codes

3.5.1. B/G-FM (A2 or NICAM)

3.5.2. BTSC-Stereo

3.5.3. BTSC-SAP with SAP at Loudspeaker Channel

3.5.4. FM-Stereo Radio

3.5.5. Automatic Standard Detection

4. Specifications

4.1. Outline Dimensions

4.2. Pin Connections and Short Descriptions

4.3. Pin Descriptions NC – Pin not connected

4.4. Pin Configurations

4.5. Pin Circuits

4.6. Electrical Characteristics

4.6.1. Absolute Maximum Ratings

4.6.2. Recommended Operating Conditions

4.6.3. Characteristics

4.6.3.1. General Characteristics

4.6.3.2. Digital Inputs, Digital Outputs

4.6.3.3. Reset Input and Power-Up

4.6.3.4. I2C Bus Characteristics

4.6.3.5. Analog Baseband Inputs and Outputs, AGNDC

4.6.3.6. Sound IF Input

4.6.3.7. Power Supply Rejection

4.6.3.8. Analog Performance

4.6.3.9. Sound Standard Dependent Characteristics

5. Appendix A: Overview of TV Sound Standards

5.1. NICAM 728

5.2. A2 Systems

5.3. BTSC-Sound System

5.4. Japanese FM Stereo System (EIA-J)

5.5. FM Satellite Sound

5.6. FM-Stereo Radio

6. Appendix B: Manual/Compatibility Mode

6.1. Demodulator Write and Read Registers for Manual/Compatibility Mode

6.2. DSP Write and Read Registers for Manual/Compatibility Mode

6.3. Manual/Compatibility Mode: Description of Demodulator Write Registers

6.3.1.1. Function in Automatic Sound Select Mode

6.3.1.2. Function in Manual Mode

6.3.2. A2 Threshold

6.3.3. Carrier-Mute Threshold

6.3.4. Register AD_CV

6.3.5. Register MODE_REG

6.4. Manual/Compatibility Mode: Description of Demodulator Read Registers

6.4.1. NICAM Mode Control/Additional Data Bits Register

6.4.2. Additional Data Bits Register