Philips A10, EM2E, A10E Service Manual
MSP 34x1G
Multistandard
Sound Processor Family
with Virtual Dolby
Surround
Edition Oct. 15, 1999
6251-511-1PD
PRELIMINARY DATA SHEET
MICRONAS
INTERMETALL
MSP 34x1G PRELIMINARY DATA SHEET
Contents
Page Section Title
6 1. Introduction
7 1.1. Features of the MSP 34x1G Family and Differences to MSP 34xxD
7 1.2. MSP 34x1G Version List
8 1.3. MSP 34x1G Versions and their Application Fields
9 2. Functional Description
10 2.1. Architecture of the MSP 34x1G Family
10 2.2. Sound IF Processing
10 2.2.1. Analog Sound IF Input
10 2.2.2. Demodulator: Standards and Features
11 2.2.3. Preprocessing of Demodulator Signals
11 2.2.4. Automatic Sound Select
11 2.3. Preprocessing for SCART and I
13 2.4. Source Selection and Output Channel Matrix
13 2.5. Audio Baseband Processing
13 2.5.1. Automatic Volume Correction (AVC)
13 2.5.2. Loudspeaker and Headphone Outputs
13 2.5.3. Subwoofer Output
13 2.5.4. Quasi-Peak Detector
14 2.6. Virtual Surround System Application Tips
14 2.6.1. Sweet Spot
14 2.6.2. Clipping
14 2.6.3. Loudspeaker Requirements
14 2.6.4. Cabinet Requirements
15 2.7. SCART Signal Routing
15 2.7.1. SCART DSP In and SCART Out Select
15 2.7.2. Stand-by Mode
2
15 2.8. I
S Bus Interface
16 2.9. ADR Bus Interface
16 2.10. Digital Control I/O Pins and Status Change Indication
16 2.11. Clock PLL Oscillator and Crystal Specifications
2
S Input Signals
17 3. Control Interface
2
17 3.1. I
C Bus Interface
17 3.1.1. Device and Subaddresses
18 3.1.2. Description of CONTROL Register
19 3.1.3. Protocol Description
2
20 3.1.4. Proposals for General MSP 34x1G I
C Telegrams
20 3.1.4.1. Symbols
20 3.1.4.2. Write Telegrams
20 3.1.4.3. Read Telegrams
20 3.1.4.4. Examples
2
21 3.2. Start-Up Sequence: Power-Up and I
C Controlling
21 3.3. MSP 34x1G Programming Interface
21 3.3.1. User Registers Overview
25 3.3.2. Description of User Registers
26 3.3.2.1. STANDARD SELECT Register
2 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET
Contents, continued
Page Section Title
26 3.3.2.2. Refresh of STANDARD SELECT Register
27 3.3.2.3. STANDARD RESULT Register
2
28 3.3.2.4. Write Registers on I
29 3.3.2.5. Read Registers on I2C Subaddress 11
30 3.3.2.6. Write Registers on I2C Subaddress 12
43 3.3.2.7. Read Registers on I2C Subaddress 13
C Subaddress 10
hex
hex
hex
hex
44 3.4. Programming Tips
44 3.5. Examples of Minimum Initialization Codes
44 3.5.1. SCART1 Input to Loudspeaker in Stereo Sound
44 3.5.2. SCART1 Input to Loudspeaker in 3D-PANORAMA Sound
44 3.5.3. Noise Sequencer for 3D-PANORAMA Sound
45 3.5.4. B/G-FM (A2 or NICAM)
45 3.5.5. BTSC-Stereo
45 3.5.6. BTSC-SAP with SAP at Loudspeaker Channel
45 3.5.7. FM-Stereo Radio
45 3.5.8. Automatic Standard Detection
45 3.5.9. Software Flow for Interrupt driven STATUS Check
MSP 34x1G
47 4. Specifications
47 4.1. Outline Dimensions
49 4.2. Pin Connections and Short Descriptions
52 4.3. P in Des cripti ons
55 4.4. Pin Configurations
59 4.5. Pin Circuits
61 4.6. Electrical Characteristics
61 4.6.1. Absolute Maximum Ratings
62 4.6.2. Recommended Operating Conditions (T
= 0 to 70 °C)
A
62 4.6.2.1. General Recommended Operating Conditions
62 4.6.2.2. Analog Input and Output Recommendations
63 4.6.2.3. Recommendations for Analog Sound IF Input Signal
64 4.6.2.4. Crystal Recommendations
65 4.6.3. Characteristics
65 4.6.3.1. General Characteristic s
66 4.6.3.2. Digital Inputs, Digital Outputs
67 4.6.3.3. Reset Input and Power-Up
2
68 4.6.3.4. I
69 4.6.3.5. I
C-Bus Characteristics
2
S-Bus Characteristics
70 4.6.3.6. Analog Baseband Inputs and Outputs, AGNDC
72 4.6.3.7. Sound IF Inputs
72 4.6.3.8. Power Supply Rejection
73 4.6.3.9. Analog Performance
76 4.6.3.10. Sound Standard Dependent Characteristics
MICRONAS INTERMETALL 3
MSP 34x1G PRELIMINARY DATA SHEET
Contents, continued
Page Section Title
79 5. Appendix A: Overview of TV-Sound Standards
79 5.1. NICAM 728
80 5.2. A2-Systems
81 5.3. BTSC-Sound System
81 5.4. Japanese FM Stereo System (EIA-J)
82 5.5. FM Satellite Sound
82 5.6. FM-Stereo Radio
83 6. Appendix B: Manual/Compatibility Mode
84 6.1. Demodulator Write and Read Registers for Manual/Compatibility Mode
85 6.2. DSP Write and Read Registers for Manual/Compatibility Mode
86 6.3. Manual/Compatibility Mode: Description of Demodulator Write Registers
86 6.3.1. Automatic Switching between NICAM and Analog Sound
86 6.3.1.1. Function in Automatic Sound Select Mode
86 6.3.1.2. Function in Manual Mode
87 6.3.2. A2 Threshold
87 6.3.3. Carrier-Mute Threshold
88 6.3.4. Register AD_CV
89 6.3.5. Register MODE_REG
91 6.3.6. FIR-Parameter, Registers FIR1 and FIR2
91 6.3.7. DCO-Registers
93 6.4. Manual/Compatibility Mode: Description of Demodulator Read Registers
93 6.4.1. NICAM Mode Control/Additional Data Bits Register
93 6.4.2. Additional Data Bits Register
93 6.4.3. CIB Bits Register
94 6.4.4. NICAM Error Rate Register
94 6.4.5. PLL_CAPS Readback Register
94 6.4.6. AGC_GAIN Readback Register
94 6.4.7. Automatic Search Function for FM-Carrier Detection in Satellite Mode
95 6.5. Manual/Compatibility Mode: Description of DSP Write Registers
95 6.5.1. Additional Channel Matrix Modes
95 6.5.2. Volume Modes of SCART1/2 Outputs
95 6.5.3. FM Fixed Deemphasis
95 6.5.4. FM Adaptive Deemphasis
95 6.5.5. NICAM Deemphasis
96 6.5.6. Identification Mode for A2 Stereo Systems
96 6.5.7. FM DC Notch
96 6.6. Manual/Compatibility Mode: Description of DSP Read Registers
96 6.6.1. Stereo Detection Register for A2 Stereo Systems
96 6.6.2. DC Level Register
96 6.7. Demodulator Source Channels in Manual Mode
96 6.7.1. Terrestric Sound Standards
96 6.7.2. SAT Sound Standards
98 6.8. Exclusions of Audio Baseband Features
98 6.9. Phase Relationship of Analog Outputs
4 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET
Contents, continued
Page Section Title
99 7. Appendix D: MSP 34x1G Version History
100 8. Appendix E: Application Circuit
102 9. Data Sheet History
MSP 34x1G
License Notice:
1)
“Dolby”, “Virtual Dolby Surround”, and the double-D Symbol are trademarks of Dolby Laboratories.
Supply of this implementation of Dolb y Technology does not convey a l ic ens e no r imply a right und er a ny pa tent, or
any other industrial or intellectual property right of Dolby Labor atories, to use this implementati on in any finished
end-user or ready-to-us e final product. Companies plann ing to use this implementation in produc ts must obtain a
license from Dolby laboratories Licensing Corporation before designing such products.
MICRONAS INTERMETALL 5
MSP 34x1G PRELIMINARY DATA SHEET
Multistandard Sound Processor Family with Virtual Dolby Surround
The hardware and software description in this doc ument is valid for th e MSP 34x1G version A1 and
following versions.
1. Introduction
The MSP 34x1G family of single-chip Multistandard
Sound Processors cov ers the sound processin g 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-o ut, is performed on a single c hip.
Figure 1–1 shows a simplified functional block diagram
of the MSP 34x1G.
The MSP 34x1G has all functions of the MSP 34x0G
with the addition of a virtual surround sound feature.
Surround sound c an be r ep roduc ed to a c erta in ex ten t
with two loudspeak ers. The MSP 34x1G incl udes our
virtualizer algorithm “3D-PANORAMA” which has been
approved by the Dolby
1)
Laboratories for compl iance
with the "Virtual Dolby Surround" technology. In addition, the MSP 34x1G inc ludes our “PANORAMA” algorithm.
These TV sound proce ssing ICs include versions for
processing the multichannel television sound (MTS)
signal conforming to the standard recommended by
the Broadcast Television System s Committee (BTSC).
The DBX noise redu ct ion , or alter na tiv el y, MICRONAS
Noise Reduction (MNR) is performed alignment free.
Other processed standar ds are the Japanese FM-FM
multiplex standard (EIA-J) and the FM Stereo Radio
standard.
Current ICs have to p erform ad justment proc edures in
order to achieve good s ter eo sep arati on for BTS C and
EIA-J. The MSP 34x1G has optimum stereo performance without any adjustments.
All MSP 34x1G versions are pin and software downward-compatible to the MSP 34x0D. The MSP 34x1G
further simplifies controlling softw are. Standard sele ction requires a single I
2
C transmission only.
The MSP 34x1G ha s built-in automa tic functions: T he
IC is able to detect the actual sound standard automatically (Automatic Standard Detection). Furthermore,
pilot levels and identi fication signals can be ev aluated
internally with subsequent switching between mono/
stereo/bilingual; no I
2
C interaction is nece ssary (Auto-
matic Sound Selection).
The ICs are produced in submicron CMOS technology.
The MSP 34x1G is available in the following packages: PLCC68, PSDIP64, PSDIP52, PQFP80, and
PLQFP64.
Sound IF1
Sound IF2
I2S1
I2S2
SCART1
SCART2
SCART3
SCART4
MONO
ADC
SCART
DSP
Input
Select
De-
modulator
ADC
Pre-
processing
Prescale
Prescale
Fig. 1–1: Simplified functional block diagram of the MSP 34x1G
Source Select
Loud-
speaker
Sound
Processing
Headphone
Sound
Processing
DAC
DAC
DAC
DAC
SCART
Output
Select
Loudspeaker
Subwoofer
Headphone
I2S
SCART1
SCART2
6 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
1.1. Features of the MSP 34x1G Family and Differences to MSP 34xxD
Feature (New features not available for MSP 34xxD are shaded gray.) 3401 3411 3421 3431 3441 3451
3D-PANORAMA virtualizer (approved by Dolby Laboratories) with noise generator
PANORAMA virtualizer algorithm
2
Standard Selection with single I
Automatic Standard Detection of terrestrial TV standards
Automatic Sound Selection (mono/stereo/bilingual), new registers MODUS, STATUS
Two selectable sound IF (SIF) inputs X X X X X X
Automatic Carrier Mute function X X X X X X
Interrupt output programmable (indicating status change)
Loudspeaker / Headphone channel with volume, balance, bass, treble, loudness X X X X X X
AVC: Automatic Volume Correction X X X X X X
Subwoofer output with programmable low-pass and complementary high-pass filter X X X X X X
5-band graphic equalizer for loudspeaker channel X X X X X X
Spatial effect for loudspeaker channel; processing of all deemphasis filtering X X X X X X
Four Stereo SCART (line) inputs, one Mono input; two Stereo SCART outputs X X X X X X
Complete SCART in/out switching matrix X X X X X X
2
S inputs; one I2S output XXXXXX
Two I
All analog FM-Stereo A2 and satellite standards; AM-SECAM L standard
C transmission X X X X X X
X X X X X X
X X X X X X
X X X X X X
X X X X X X
X X X X X X
X X X
Simultaneous demodulation of (very) high-deviation FM-Mono and NICAM
Adaptive deemphasis for satellite (Wegener-Panda, acc. to ASTRA specification) X X X
ASTRA Digital Radio (ADR) together with DRP 3510A X X X
All NICAM standards XX
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 3421/41G also EIA-J) significantly better than spec.
SAP and stereo detection for BTSC system
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 X
X X X
X
X X X X
X X X X
X X X
X X X X
1.2. MSP 34x1G Version List
Version Status Descript ion
MSP 3401G planned FM Stereo (A2) Version
MSP 3411G planned NICAM and FM Stereo (A2) Version
MSP 3421G planned NTSC Version (A2 Korea, BTSC with MICRONAS Noise Reduction (MNR), and Japanese EIA-J system)
MSP 3431G planned BTSC Version
MSP 3441G planned NTSC Version (A2 Korea, BTSC with DBX noise reduction, and Japanese EIA-J system)
MSP 3451G available Global Version (all sound standards)
MICRONAS INTERMETALL 7
MSP 34x1G PRELIMINARY DATA SHEET
1.3. MSP 34x1G Versions and their Application Fields
Table 1–1 provides an overview of TV sound standards that can be proce ssed by the MSP 34x1 G family. In addition , the MSP 34x1G is able to han dle the
terrestrial FM-Radio standa rd. Wi th the MSP 34x1G, a
complete multimedia receiver covering all TV sound
standards together with terrestrial and satellite radio
sound can be built; e ven ASTRA Di gital Radio can b e
processed (with a DRP 3510A coprocessor).
Table 1–1: TV Stereo Sound Standards covered by the MSP 34x1G IC Family (details see Appendix A)
MSP Ve rsion
3401
3401
3401
3411
TVSystem
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
3451
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.
Sound
Modulation
FM-Mono
FM-Stereo
ASTRA Digital Radio (ADR)
with DRP 3510A
Color
System
PAL
Broadcast e.g. in:
Europe Sat.
ASTRA
3421, 3441
3431
Tuner
4.5/4.724212 FM-Stereo (A2) NTSC Korea
M/N
FM-Radio 10.7 FM-Stereo Radio USA, Europe
SAW Filter
Composite
Video
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
1
2
2
2
2
MSP 34x1G
2
SCART1
2
SCART2
Vision
Demodulator
SCART
Inputs
Mono
SCART1
SCART2
SCART3
SCART4
Loudspeaker
Subwoofer
Headphone
SCART
Outputs
I2S2ADRI2S1
Dolby
Pro Logic
Processor
DPL 351xA
ADR
Decoder
DRP 3510A
Fig. 1–2: Typical MSP 34x1G application
8 MICRONAS INTERMETALL
2. Functional Description
Automatic
MICRONAS INTERMETALL 9
ANA_IN1+
ANA_IN2+
AGC
A
D
DEMODULATOR
(incl. Carrier Mute)
Decoded
Standards:
NICAM
A2
AM
BTSC
EIA-J
SAT
FM-Radio
Deemphasis:
50/75 µs
DBX/MNR
Panda1
Deemphasis:
J17
Standard
and Sound
Detecti on
ADR-Bus Interface
Prescale
Prescale
FM/AM
NICAM
I2C Read-
Register
Sound Select
FM/AM
Stereo
or A/B
Stereo
or A
Stereo
or B
Loudspeaker
Channel
Head-
phone
Channel
Virtualizer
Noise
Generator
AVC
Bass/
Treble
or
Equal-
Bass/
Treble
Σ
Beeper
Loudness
LoudnessΣ
Complementary
Highpass
Lowpass
Spatial
Effects
Balance
Level
Adjust
Balance
Volume
Volume
D
D
A
DACM_SUB
A
DACM_L
DACM_R
DACA_L
DACA_R
PRELIMINARY DATA SHEET MSP 34x1G
I2S_DA_IN1
I2S_DA_IN2
SC1_IN_L
SC1_IN_R
SC2_IN_L
SC2_IN_R
SC3_IN_L
SC3_IN_R
SC4_IN_L
SC4_IN_R
MONO_IN
SCART DSP Input Select
I2S
Interface
I2S
Interface
A
I2S1
Prescale
I2S2
Prescale
SCART
D
Prescale
Source Select
I2S
Channel
Matrix
Quasi-
Peak
Channel
SCART1
Channel
Matrix
SCART2
Channel
Matrix
I2S
Interface
Quasi-Peak
Detector
Volume
Volume
I2C Read-
Register
D
A
D
A
SCART1_L/R
SCART2_L/R
SCART Output Select
I2S_DA_OUT
SC1_OUT_L
SC1_OUT_R
SC2_OUT_L
SC2_OUT_R
Fig. 2–1: Signal flow block diagram of the MSP 34x1G (input and output names correspond to pin names)
MSP 34x1G PRELIMINARY DATA SHEET
2.1. Architecture of the MSP 34x1G Family
Fig. 2–1 on page 9 shows a simplified block diagram of
the IC. The block diagram con tains all features of the
MSP 3451G. Other m embers of the MSP 34x 1G family do not have the complete set of features: The
demodulator handles only a subset of the standards
presented in the demodulato r block; NICAM processing is only possible in the MSP 3411G and
MSP 3451G.
2.2. Sound IF Processing
2.2.1. Analog Sound IF Input
The input pins ANA_IN1+, ANA_IN2+, and ANA_IN
offer the possibility to connect two different sound IF
(SIF) sources to the MSP 34x1G. The analog-to-digital
conversion of the preselected sou nd IF signal is done
by an A/D-converter. An analog automatic gai n circuit
(AGC) allows a wide range of i nput levels. The highpass filters for med by the coupling capacito rs at pins
ANA_IN1+ and ANA_IN2+ see Section 8. “Appendix
E: Application Circuit” on page 100 are sufficient in
most cases to suppress video components. Some
combinations of SAW filter s 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 carrier, detection
and FM demodulation of the SAP subcar rier. Processing of 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. Proces sing of high-dev iation mono or narrow
bandwidth mono, stereo, or bilingual satellite sound
according to the ASTRA specification.
−
FM-Stereo-Radio: Detection and FM demodulation of
the aural carri er res ultin g in th e MPX signal . Detec tion
and evaluation o f the pilot carrier and AM dem odulation of the (L−R)-carrier.
The demodulator blocks of all MSP 34x1G versions
have identical us er interfaces. Eve n completely different systems like the BTSC and NICAM systems are
controlled the same way. Standards are selected by
means of MSP Standar d Codes. Auto matic proc esses
handle standard detection and identification without
controller interaction. The key features of the
MSP 34x1G demodulator blocks are
2.2.2. Demodulator: Standards and Features
The MSP 34x1G is able to demodulate all TV-sound
standards worldwide including the digital N ICAM system. Depending on the MSP 34x1G version, the following demodulation modes can be performed:
A2 Systems: Detection and de modulatio n of two separate FM carriers (FM 1 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 one FM carrier with a maximum deviation of 540 kHz.
BTSC-Stereo: Detection and FM demodulation of the
aural carrier resulti ng in the MTS/MPX signal. Detection and evaluatio n of the pilot carri er, AM demodulation of the (L−R)-carrier and detection of the S AP subcarrier. Processing of DBX noise reduction or
MICRONAS Noise Reduction (MNR).
Standard Selection: The controlling of t he dem odulator is minimized: All parameters, such as tuning frequencies or filter bandwidth, are adjusted automatically by transmitting one single value to the
STANDARD SELECT regi ster. For all standards, specific MSP standard codes are defined.
Automatic Standard Detection: If the TV sound standard is unknown, the MSP 34x1G can automatically
detect the actual standard, switch to that standard, and
respond the actual MSP standard code.
Automatic Carrier Mute: To prevent noise e ffects or
FM identification problems in the absence of an FM
carrier, the MSP 34x1G offers a carrier mute feature,
which is activated a utomatically if the TV s ound standard is selected by means of the STANDARD SELECT
register. If no FM carrier is available at one of the two
MSP demodulator channels, the corresponding
demodulator output is muted.
10 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
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 mu st be processed by a deempha sis filter, adjusted in level, and dematrixed. The correct
deemphasis filter s are already selected by s etting the
standard in the STANDARD SELECT register. The
level adjustment ha s to be done by m eans of the FM/
AM and NICAM prescale registers. The necessary
dematrix function depends on the selected sound standard and the actual broadcasted sound m ode (mono,
stereo, or bilingual ). It can be manu ally set by the FM
Matrix Mode registe r or automatically set by the Automatic Sound Selection.
2.2.4. Automatic Sound Select
In the Automatic Sound Select mode, the dematrix
function is automatically selected based on the identification information in the STATUS register. No I
2
interaction is necess ary when the broadcasted sound
mode changes (e.g. from mono to stereo).
The demodulator supports 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, and D/K-NICAM. Switching
is only done in the abs ence of any stereo or bil ingual
identification. If identi fication is found, the MSP keeps
the detected standard.
In case of high bit-error rates, the MSP 34x1G automatically falls back fr om digital NICAM sound to analog FM or AM mono.
Table 2–1 summarizes all actions that take place when
Automatic Sound Select is switched on.
To provi de mo re flexibility, the Automatic Sound Select
block prepares four different source channels of
demodulated sound (Fig 2–3) . By cho osing on e of the
four demodulator ch annels, th e preferre d sound mo de
can be selected for eac h of the o utput c hanne ls (lo udspeaker, headphone, etc.). Thi s is done by means of
the Source Select registers.
The following source c hannels of demodulated sou nd
are defined:
– “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).
– “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 shows the s ource channel assignment of the
demodulated signal s in case of man ual mode. If man ual mode is required, more information can be found in
the section “D emodulator Sour ce Channels in M anual
Mode” on page 96. Fig 2–3 and Table 2–2 show the
source channel assignment of the demodulated signals in case of Au tomatic Sound Select mode for all
sound standards.
Note: The analog primary input channel contains the
signal of the mono FM/A M carrier or th e L+R signal of
the MPX carrier. The secondary input channel contains
the signal of t he 2nd FM carrier, the L−R signal of the
C
MPX carrier, or the SAP signal.
2.3. Preprocessing for SCART and
2
S Input Signals
I
2
The SCART and I
S inputs need only b e adjusted in
level by means of the SCART and I
2
S prescale regis -
ters.
Source Select
LS Ch.
Matrix
Output-Ch.
Matrices
must be set
according
the standard
SC2 Ch.
Matrix
primary
channel
secondary
channel
NICAM A
NICAM B
FM/AM
Prescale
NICAM
Prescale
FM-Matrix
FM/AM
NICAM
(Stereo or A/B)
0
1
Fig. 2–2: Source channel assignment of demodulated
signals in Manual Mode
Source Select
LS Ch.
Matrix
Output-Ch.
Matrices must
be set once to
stereo
SC2 Ch.
Matrix
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
0
1
3
4
Fig. 2–3: Source channel assignment of demodulated
signals in Automatic Sound Select Mode
MICRONAS INTERMETALL 11
MSP 34x1G PRELIMINARY DATA SHEET
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,
and 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. Identification is acquired after 500 ms.
Evaluation of NICAM-C-bits and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2. NICAM detection is acquired within 150 ms.
In case of bad or no NICAM reception, the MSP switches automatically to FM/AM mono and switches
back to NICAM if possible. A hysteresis 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 Table 2–2 . Detection of the SAP carrier. Pilot detection is acquired after
200 ms.
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
3)
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)
02
1)
03, 08
04, 05, 07, 0B
30
2)
08, 03
09
0A
2)
, 05
0B, 04
0C
MONO Mono Mono Mono Mono
1)
STEREO Stereo Stereo Stereo Stereo
BILINGUAL:
Languages A and B
NICAM not available or
Left = A
Right = B
Left = A
Right = B
AB
analog Mono analog Mono analog Mono analog Mono
error rate too high
2)
MONO analog Mono NICAM Mono NICAM Mono NICAM Mono
STEREO analog Mono NICAM Stereo NI CAM 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
Left = Mono
Right = SAP
Mono SAP
Mono SAP
FM Radio 40 MONO Mono Mono Mono Mono
STEREO Stereo Stereo Stereo Stereo
1)
The Automatic Sound Select process will automatically switch to the mono compatible analog standard.
2)
The Automatic Sound Select process will automatically switch to the mono compatible digital standard.
3)
The MSP Standard Codes are defined in Table 3–7 on page 25.
12 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
2.4. Source Selection and Output Channel Matrix
output level
The Source Selector makes it possible to distrib ute all
source signals ( one of the demodulator source channels, SCART, or I
2
S input) to the desired output chan-
nels (loudspeake r, headphone, etc.). All i nput and out-
[dBr]
12
−
put signals can be processed simultaneously. Each
source channel is identified by a unique source
18
−
address.
24
For each output channel, the sound mode can be set
−
to sound A, sound B , s tereo, or mono by mean s of t he
output channel matrix.
30−24−18−12
−
6
−
6
+
0
input level
If Automatic Sound Select is on, the output channel
[dBr]
matrix can stay fixed to stereo (transparent) for
demodulated signals.
Fig. 2–4: Simplified AVC characteristics
2.5. Audio Baseband Processing
2.5.1. Automatic Volume Correction (AVC)
Different sound sources (e.g . terres trial ch annel s, SAT
channels, or SCART) fairly often do not have the same
volume level. Advertisements during movies usually
have a higher volum e level than the movi e itself. This
results in annoying volume changes. The Automatic
Volume Correction (AVC) solves this problem by
equalizing the volume level.
To preven t clipping, the AVC’s gain decreases quickly
in dynamic boost conditions. To suppress oscillation
effects, the gain inc reases rather slowly for low leve l
inputs. The decay time is programma ble by means of
the AVC register (see page 34).
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 le vel. 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 and Aux output 0 dBr = 1.4 V
rms
rms
2.5.2. Loudspeaker and Headphone Outputs
The following baseband features are implemented in
the loudspeaker and headphone output channels:
bass/treble, loudne ss, balance, and volum e. A square
wave beeper can be added to the loudspeaker and
headphone channel. The loudspeaker channel additionally performs: equalizer (not simultaneously with
bass/treble), spatial effects, and a subwoofer crossover filter.
2.5.3. Subwoofer Output
The subwoofer signa l is created by combin ing the left
and right channels d irectly behind the loudness block
using the formula (L+R)/2. Due to the division by 2, the
D/A converter will not be overloaded, even with full
scale input signal s. The subwo ofer sign al is filter ed by
a third-order low-pass with programmable corner frequency followed by a level adjustment. At the loudspeaker channels, a complementary high-pass filter
can be switched on. Subwoofe r and loudspeaker output use the same volum e (Loudspeaker Volume Register).
2.5.4. Quasi-Peak Detector
The quasi-peak reado ut register can be used to read
out the quasi-peak level of any i nput source. The feature is based on following filter time constants:
attack time: 1.3 ms
decay time: 37 ms
MICRONAS INTERMETALL 13
MSP 34x1G PRELIMINARY DATA SHEET
2.6. Virtual Surround System Application Tips
2.6.1. Sweet Spot
Good results are only ob tained in a rather close area
along the middle axis between the two loudspeakers:
the sweet spot. Moving away from this position
degrades the effect.
2.6.2. Clipping
For the test at Do lby Labs, it is v ery impor tant to h ave
no clipping effects even with worst c ase signals. That
is, 2 Vrms input signal may no t clip. The SCART Input
Prescale register has to be set to values of 19
(25
) or lower (see SCART Input Prescale on page
dec
31).
Test signals: sine sweep with 2 V
L&R equal phase, L&R anti phase.
Listening tests: Do lby Trailers (train trailer, city trailer,
canyon trailer...)
; L only, R only,
RMS
hex
2.6.3. Loudspeaker Requirements
The loudspeakers used and their positioning inside the
TV set will greatly influence the performance of the virtualizer. The algorithm works with the direct sound
path. Reflected sound waves red uce th e effect. So it’s
most important to have as much direct sound as possible, compared to indire ct sound.
To obtain the approval for a TV set, Dolby Laboratories
require mounting the loud speakers in front of the set.
Loudspeakers ra diating to the side of the TV set will
not produce co nvincing effects. Good directio nality of
the loudspeakers towards the listener is optimal.
The virtualize r was special ly developed for implementation in TV sets. Even for rather small stereo TV's,
sufficient sound effects can be obtained. For small
sets, the loudspeaker pla cement s hould be to th e si de
of the CRT; for large screen sets (or 16:9 sets), mounting the loudspeakers below the CRT is acceptable
(large separation i s preferr ed, low freque ncy spea kers
should be outmost to avoid cancellation effects). Using
external loudspea ke rs wi th a la rg e s ter eo base wil l n ot
create optimal effects.
The loudspeakers shou ld be able to reprodu ce a wide
frequency range. The most impo rtant freque ncy rang e
starts from 160 Hz and ranges up to 5 kHz.
Great care has to be taken with s ystems that use one
common subwoofer: A single loudspeaker cannot
reproduce virtua l sound locations. The crossover frequency must be lower than 120 Hz.
2.6.4. Cabinet Requirements During listening tests at Dolby Laboratories, no reso-
nances in the cabinet should occur.
Good material to c heck for resonances are the Dolby
Trailers or other dynamic sound tracks.
14 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
2
2.7. SCART Signal Routing
2.8. I
S Bus Interface
2.7.1. SCART DSP In and SCART Out Select
The SCART DSP Input Select and SCART Output
Select blocks include full matrix switching facilities. To
design a TV set with four pairs of SCART-inputs and
two pairs of SCART-outputs, no external switching
hardware is requir ed. The switches are controlled by
the ACB user register (see page 40).
2.7.2. Stand-by Mode
If the MSP 34x1G is switched off by first pulling
STANDBYQ low and then (after >1µs delay) switching
off the 5-V, but keeping the 8-V power supply (‘Stand-
by’-mode), the SCART switches maintain their position and function. This allows the copying from
selected SCART-inputs to SCART-outputs in the TV
set’s stand-by mode.
In case of power on o r starting from stand-by (switch-
ing on the 5-V supply, RESETQ going high 2 ms later),
all internal register s ex ce pt the A CB r egi st er (page 40)
are reset to the default configuration (see Table 3–5 on
page 22). The reset position of the ACB register
becomes active after the fi rst I
Baseband Processing part (subaddress 12
2
C transmis si on i nto the
). By
hex
transmitting the ACB register first, the reset stat e can
be redefined.
It is possible to route in an external coprocessor for
special effects, like surround processing and sound
field processing. Routi ng can be done with each in put
source and output chan nel via the I
2
S inputs and out-
puts.
Two possible interface formats are supported:
1. The SONY format: I2S_WS changes at the word
boundaries.
2. The PHILIPS format: I2S_WS changes one I2S_CL
period before the word boundaries.
2
S bus interface consists of five pins:
The I
1. I2S_DA_IN1, I2S_DA_IN2:
For input, four channels (two channels per line,
2*16 bits) per sampling cycle (32 kHz) are transmitted.
2. I2S_DA_OUT:
For output, two channels (2*16 bits) per sampling
cycle (32 kHz) are transmitted.
3. I2S_CL:
Gives the timing for the transmission of I
2
S serial
data (1.024 MHz).
4. I2S_WS:
The I2S_WS word strobe line defines the left and
right sample.
The MSP 34x1G normally serves as the master on the
2
S interface. In this case, the clock and word strobe
I
lines are driven by the MSP 34x1G. In slave mode,
these lines are input to the MSP 34x1G and the master
clock is synchronized to 576 times the I2S_WS rate
(32 kHz). NICAM operation is not possible in this
mode.
2
S options can be set by means of the MODUS
All I
register (see page 28).
2
A precise I
S timing diagram is shown in Fig. 4 –26 on
page 70.
MICRONAS INTERMETALL 15
MSP 34x1G PRELIMINARY DATA SHEET
2.9. ADR Bus Interface
For the ASTRA Digital Radio System (ADR), the
MSP 3401G, MSP 3411G and MSP 3451G performs
preprocessing such as carrier selection and filtering.
Via the 3-line ADR-bus, the resulting signals are transferred to the DRP 3510A coprocessor, where the
source decoding i s performed. To be prepared for an
upgrade to ADR with an add iti on al DR P b oar d, t he fo llowing lines of MSP 34x1G should be provided on a
feature connector:
– AUD_CL_OUT
– I2S_DA_IN1 or I2S_DA_IN2
–I2S_DA_OUT
–I2S_WS
–I2S_CL
– ADR_CL, ADR_WS, ADR_DA
For more details, p lease refer to the DRP 3 510A dat a
sheet.
2.10.Digital Control I/O Pins and Status Change Indication
2.11. Clock PLL Oscillator and Crystal Specifications
The MSP 34x1G derives all internal system clocks
from the 18.432-MHz oscillator. In NICAM or in I
2
SSlave mode, the clock is phase-locked to the corresponding source. Therefore, it is not possible to use
NICAM and I
2
S-Slave mode at the same time.
For proper performance, the MSP clock oscillator
requires a 18.432-MHz crystal. Note that for the
phase-locked modes (NICAM, I
2
S-Slave), c r ys ta l s w it h
tighter tolerance are required.
Remark on using the crystal:
External capacit ors at each crystal pin to ground are
required. They are necess ary for tuning the open-loo p
frequency of the internal PLL and for stabilizing the frequency in closed-loop operation. The higher the
capacitors, the lower the resulting clock frequency.
The nominal free running frequency should match
18.432 MHz as closely as possible.
Clock measurements should be done at pin
AUD_CL_OUT. This pin must be activ ated for th is pu rpose (see Table 3–9 on page 28).
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 40). This ena bles the contr olling of ex ternal
hardware switches or other devices via I
2
C-bus by means of the ACB register
2
C-bus.
The digital input/ou tput pins can b e set to high imp edance by means of the MODUS register (see page 28).
In this mode, the pins can be used as input. The current state can be read out of the STATUS register (see
page 29).
Optionally, the pin D_CTR_I/O_1 can be used as an
interrupt request sig nal to th e control ler, indicating any
changes in the read register STATUS. This makes polling unnecessary, I
2
C bus interactions are re duc ed to a
minimum (see STATUS register on page 29 and
MODUS register on page 28).
16 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
3. Control Interface
2
C Bus Interface
3.1. I
3.1.1. Device and Subaddresses
2
The MSP 34x1G is controlled via the I
C bus slave
interface.
The IC is selected by transmitting one of the
MSP 34x1G device a ddresses. 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 34x1G respo nds to di fferent dev ic e a ddr ess es. A
device address pai r is defined as a write add ress (80,
84, or 88 hex) and a r ead address (81, 85, or 89 hex)
(see Table 3–1).
Writing is done by send ing the device write address,
followed by the suba ddress byte, two address bytes,
and two data bytes. Reading i s done by sending the
write device addre ss, fo llowed by the sub addres s byte
and two address byte s. Without se nding a stop con dition, reading of the addressed data is completed by
sending the devic e read address (81, 85, or 89 hex)
and reading two bytes of data. Refer to se ction 3.1.3.
for the I
Tips” on page 44 for proposals of MSP 34x1G I
2
C bus protoco l and to section “Pr ogramming
2
C telegrams. See Table 3–2 for a list of available subaddresses.
performed some o ther fu nctio n (for examp le, serv icing
an internal interru pt), it will hold the c lock line I2C_CL
LOW to force the transmitter into a wait state. The
positions within a transmission where this may happen
are indicated by ’ Wait’ in section 3.1.3. The m aximum
wait period of the MSP dur ing normal operation mo de
is less than 1 ms.
Internal hardware error handling:
In case of any internal hardware error (e.g. interruption
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 clo ck lines.
Indication and solving of the error status:
1. MSP 34x1G-versions until A1: To indicate the
error status, all further acknowledge bits will be left
high. The MSP can then b e reset by transmitting the
reset condition t o CONTROL while ignoring t he missing acknowledge bits.
2. MSP 34x1G-versions from A2 on: To i n di c a t e t h e
error status, the remaining acknowledge bits of the ac-
2
tual I
C-protocol will be left high. Additionally, bit[14] of
CONTROL is set to o ne. The MSP can then be reset
via the I
2
C bus by transmi tting the reset condition to
CONTROL.
Besides the possibility of hardware reset, the MSP can
also be reset by means of the RES ET bit in the CONTROL register by the controller via I
Due to the internal architecture of the MSP 34x1G, the
IC cannot react immediately to an I
2
C bus.
2
C request. The
typical response ti me is about 0. 3 ms. If the MSP cannot accept anothe r complete byte of data until it has
Indication of reset (only versions from A2 on):
Any reset, even caus ed by an unstable res et line etc.,
is indicated in bit[15] of CONTROL.
2
A general timing diagram of the I
C bus is shown in
Fig. 4–25 on page 68.
MICRONAS INTERMETALL 17
MSP 34x1G PRELIMINARY DATA SHEET
Table 3–1: I
ADR_SEL Low High Left Open
Mode Write Read Write Read Write Read
MSP device address 80 hex 81 hex 84 hex 85 hex 88 hex 89 hex
2
C Bus Device Addresses
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)
TEST 0000 0001 01 Write only for internal use
WR_DEM 0001 0000 10 Write write address demodulator
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
Read: Hardware error status of MSP
3.1.2. Description of CONTROL Register
Table 3–3: CONTROL as a Write Register
Name Subaddress Bit[15] (MSB) Bits[14:0]
CONTROL 00 hex 1 : RESET
0 : normal
0
Table 3–4: CONTROL as a Read Register (only MSP 34x1G-versions from A2 on)
Name Subaddress Bit[15] (MSB) Bit[14] Bits[13:0]
CONTROL 00 hex Reset st atus after last readi ng of CONTROL:
0 : no reset occured
1 : reset occured
Reading of CONTROL will reset the bits[15,14] of CONTROL. After Power-on,
read once to be resetted.
Internal hardware status:
0 : no error occured
1 : internal error occured
not of interest
bit[15] of CONTROL will be set; it must be
18 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
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
ACK sub-addr ACK addr-byte
Wait
high
ACK addr-byte
low
ACK S read
device
address
Wait
ACK dat a-byte-
high
Write to Control or Test Registers
Swrite
device
address
Wait
Note: S = I
P = I
ACK sub-addr ACK data-byte
2
C-Bus Start Condition from master
2
C-Bus Stop Condition from master
high
ACK data-byte
low
ACK 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
2
Wait = I
C-Clock line is held low, while the MSP is processing the I2C command. This waiting time is
max. 1 ms
ACK data-byte
low
NAK P
I2C_DA
1
0
S P
I2C_CL
2
Fig. 3–1: I
C bus protocol (MSB first; data must be stable while clock is high)
MICRONAS INTERMETALL 19
MSP 34x1G PRELIMINARY DATA SHEET
3.1.4. Proposals for General MSP 34x1G I2C Telegrams
3.1.4.1. Symbols
, 84
daw write device address (80
dar read device address (81
hex
hex
, 85
hex
hex
or 88
or 89
< Start Condition
> Stop Condition
aa Address Byte
dd Data Byte
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
hex
hex
)
)
<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> S et dem odulator to stand. 03
hex
<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
More examples of typical application protocols are listed in section “Programming Tips” on page 44.
20 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
3.2. Start-Up Sequence:
Power-Up and I
2
C Controlling
After POWER ON or RESET (see Fig . 4–24) , the IC is
in an inactive state. All registers are in the reset position (see tables 3–5 a nd 3–6), the analog outp uts are
muted. The controller has to initialize all registers for
which a non-default setting is necessary.
3.3. MSP 34x1G Programming Interface
3.3.1. User Registers Overview
The MSP 34x1G is controll ed by means o f user registers. The compl ete list of all user registers is give n in
the following tables. T he registers are partitioned in to
the Demodulator section (Subaddress 10
ing, 11
sections (Subad dres s 12
for reading) and the Baseband Processing
hex
for writing, 13
hex
for writ-
hex
for read-
hex
ing).
Write and read register s are 16-bit wide, whereby the
MSB is denoted bit [15]. Transmissions via I
2
C bus
have to take place in 16-bit words (two byte transfers, with
the most significant byte tran sferred first). All write reg isters, except the demodulator write registers, are readable.
Unused parts of the 16-bit writ e registers must be zero.
Addresses not given in this table must not be written.
For reasons of software compatibility to the
MSP 34x0D, an Manual/Compatibility Mode is available. More read and write registers together with a
detailed descrip tion of this mode can be found i n the
“Appendix B: Manual/Compatibility Mode” on page 83.
An overview of all MSP 34x1G Write Registers is
shown in Table 3–5; all Read Registers are given in
Table 3–6.
MICRONAS INTERMETALL 21
MSP 34x1G PRELIMINARY DATA SHEET
Table 3–5: List of MSP 34x1G Write Registers
Write Register Address
(hex)
I2C Subaddress = 10
; Registers are
hex
not
Bits Description and Adjustable Range Reset See
Page
readable
STANDARD SELECT 00 20 [15..0] Initial Programming of complete Demodulator 00 00 26
2
MODUS 00 30 [15..0] Demodulator, Automatic and I
I2C Subaddress = 12
; Registers are
hex
all
readable by using I2C Subaddress = 13
hex
S options 00 00 28
Volume loudspeaker channel 00 00 [15..8] [+12 dB ... −114 dB, MUTE] MUT E 33
Volume / Mode loudspeaker channel [7..0] 1/8 dB Steps,
Reduce Volume / Tone Control / Compromise
Balance loudspeaker channel [L/R] 00 01 [15..8] [0...100 / 100% and 100 / 0...100%]
00
hex
100%/100% 34
[−127...0 / 0 and 0 / −127...0 dB]
Balance mode loudspeaker [7..0] [Linear mode / logarithmic mode] linear mode
Bass loudspeaker channel 00 02 [15..8] [+20 dB ... −12 dB] 0 dB 35
Treble loudspeaker channel 00 03 [15..8] [+15 dB ... −12 dB] 0 dB 36
Loudness loudspeaker channel 00 04 [15..8] [0 dB ... +17 dB] 0 dB 37
Loudness filter characteristic [7..0] [NO RMA L, SUP ER_B AS S] NORMA L
Spatial effect strength loudspeaker ch. 00 05 [15..8] [−100%...OFF...+100%] OFF 38
Spatial effect mode/customize [7..0] [SBE, SBE+PSE] SBE+PSE
Volume headphone channel 00 06 [15..8] [+12 dB ... −114 dB, MUTE] MUT E 33
Volume / Mode headphone channel [7..0] 1/8 dB Steps, Reduce Volume / Tone Control 00
hex
Volume SCART1 output channel 00 07 [15..8] [+12 dB ... −114 dB, MUTE] MUT E 39
2
Loudspeaker source select 00 08 [15..8] [FM/AM, NICAM, SCART, I
S1, I2S2] FM/AM 32
Loudspeaker channel matrix [7..0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 32
2
Headphone source select 00 09 [15..8] [FM/AM, NICAM, SCART, I
S1, I2S2] FM/AM 32
Headphone channel matrix [7..0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 32
2
SCART1 source select 00 0A [15..8] [FM/AM, NICAM, SCART, I
S1, I2S2] FM/AM 32
SCART1 channel matrix [7..0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 32
2
S source select 00 0B [15..8] [FM/AM, NICAM, SCART, I2S1, I2S2] FM/AM 32
I
2
S channel matrix [7..0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 32
I
2
Quasi-peak detector source select 00 0C [15..8] [FM/AM, NICAM, SCART, I
S1, I2S2] FM/AM 32
Quasi-peak detector matrix [7..0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 32
Prescale SCART input 00 0D [15..8] [00
Prescale FM/AM 00 0E [15..8] [00
hex
hex
... 7F
... 7F
]00
hex
]00
hex
hex
hex
31
30
FM matrix [7..0] [NO_MAT, GSTEREO, KSTEREO] NO_MAT 31
Prescale NICAM 00 10 [15..8] [00
2
Prescale I
S2 00 12 [15..8] [00
hex
hex
... 7F
... 7F
ACB : SCART Switches a. D_CTR_I/O 00 13 [15..0] Bits [15..0] 00
Beeper 00 14 [15..0] [00
2
Prescale I
S1 00 16 [15..8] [00
hex
hex
... 7F
... 7F
] (MSP 3411G, MSP 3451G only) 00
hex
]10
hex
]/[00
hex
hex
... 7F
hex
]10
] 00/00
hex
hex
hex
hex
hex
hex
31
31
40
40
31
Mode tone control 00 20 [15..8] [BASS/TREBLE, EQUALIZER] BASS/TREB 35
22 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
T able 3–5: List of MSP 34x1G Write Registers, continued
Write Register Address
(hex)
Bits Description and Adju s table Range Reset See
Page
Equalizer loudspeaker ch. band 1 00 21 [15..8] [+12 dB ... −12 dB] 0 dB 36
Equalizer loudspeaker ch. band 2 00 22 [15..8] [+12 dB ... −12 dB] 0 dB 36
Equalizer loudspeaker ch. band 3 00 23 [15..8] [+12 dB ... −12 dB] 0 dB 36
Equalizer loudspeaker ch. band 4 00 24 [15..8] [+12 dB ... −12 dB] 0 dB 36
Equalizer loudspeaker ch. band 5 00 25 [15..8] [+12 dB ... −12 dB] 0 dB 36
Automatic Volume Correction 00 29 [15..8] [ off, on, decay time] off 34
Subwoofer level adjust 00 2C [15..8] [0 dB ... −30 dB, mute] 0 dB 39
Subwoofer corner frequency 00 2D [15..8] [50 Hz ... 400 Hz] 00
hex
39
Subwoofer complementary high-pass [7..0] [off, on] off 39
Balance headphone channel [L/R] 00 30 [15..8] [0...100 / 100% and 100 / 0...100%]
100 %/100 % 34
[−127...0 / 0 and 0 / −127...0 dB]
Balance mode headphone [7..0] [Linear mode / logarithmic mode] linear mode
Bass headphone channel 00 31 [15..8] [+20 dB ... −12 dB] 0 dB 35
Treble headphone channel 00 32 [15..8] [+15 dB ... −12 dB] 0 dB 36
Loudness headphone channel 00 33 [15..8] [0 dB ... +17 dB] 0 dB 37
Loudness filter characteristic [7..0] [NORMA L, SUPER_B AS S] N ORMAL
Volume SCART2 output channel 00 40 [15..8] [+12 dB ... −114 dB, MUT E] 00
2
SCART2 source select 00 41 [15..8] [FM, NICAM, SCART, I
S1, I2S2] FM 32
hex
39
SCART2 channel matrix [7..0] [SOUNDA, SOUNDB, STEREO, MONO...] SOUNDA 32
Virtual Surround OFF/ON switch 00 48 [15..8] [OFF/ON] 00
Virtual Surround spatial effect strength 00 49 [15..8] [0% - 100%] 00
Virtual Surround 3D effect strength 00 4A [15..8] [0% - 100%] 00
Virtual Surround mode 00 4B [15..0] [PANORAMA/3D-PANORAMA] 00
Noise generator 00 4D [15..0] [OFF/ON, Noise_L, Noise_C, Noise_R, Noise_S] 00
hex
hex
hex
hex
hex
41
41
41
41
42
MICRONAS INTERMETALL 23
MSP 34x1G PRELIMINARY DATA SHEET
Table 3–6: List of MSP 34x1G Read Registers
Read Register Address
(hex)
I2C Subaddress = 11
; Registers are
hex
not
Bits Description and Adjustable Range See
Page
writable
STANDARD RESULT 00 7E [15..0] Result of Automatic Standard Detection (see Table 3–8) 29
STATUS 02 00 [15..0] Monitoring of internal settings e.g. Stereo, Mono, Mute etc. . 29
I2C Subaddress = 13
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
; Registers are
hex
not
writable
hex
hex
hex
hex
hex
hex
... 7FFF
... 7FFF
... FF
... FF
... FF
... FF
]16 bit two’s complement 43
hex
]16 bit two’s complement 43
hex
]43
hex
]43
hex
]43
hex
]43
hex
24 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
3.3.2. Description of User Registers
T able 3–7: Standard Codes for STANDARD SELECT register
MSP Standard Code
(Data in hex)
TV Sound Standard Sound Carrier
Frequencies in MHz
MSP 34x1G Version
Automatic Standard Detection
00 01 Start Automatic Standard Detection all
Standard Selection
00 02 M-Dual FM-Stereo 4.5/4.724212 3401, -11, -21, -41, -51
00 03 B/G -Dual FM-Stereo
00 04 D/K1-Dual FM-Stereo
00 05 D/K2-Dual FM-Stereo
1)
2)
2)
00 06 D/K -FM-Mono with HDEV3
Standard Detection,
3)
HDEV3
SAT-Mono (i.e. Eutelsat, s. Table 6–17)
3)
, not detectable by Automatic
5.5/5.7421875 3401, -11, -51
6.5/6.2578125
6.5/6.7421875
6.5
00 07 D/K3-Dual FM-Stereo 6.5/5.7421875
00 08 B/G -NICAM-FM
1)
5.5/5.85 3411, -51
00 09 L -NICAM-AM 6.5/5.85
00 0A I -NICAM-FM 6.0/6.552
00 0B D/K -NICAM-FM
2)
00 0C D/K -NICAM-FM with HDEV2
4)
, not detectable by Automatic
6.5/5.85
6.5/5.85
Standard Detection, for China
00 0D D/K -NICAM-FM with HDEV3
, not detectable by Automatic
6.5/5.85
3)
Standard Detection, for China
00 20 BTSC-Stereo 4.5 3421, -31, -41, -51
00 21 BTSC-Mono + SAP
00 30 M-EIA-J Japan Stereo 4.5 3421, -41, -51
00 40 FM-Stereo Radio 10.7 3421, -31, -41, -51
00 50 SAT-Mono (s. Table 6–17) 6.5 3401, -11, -51
00 51 SAT-Stereo (s. Table 6–17) 7.02/7.20
00 60 SAT ADR (Astra Digital Radio) 7.2
1)
In case of Automatic Sound Select, the B/G-codes 3
2)
In case of Automatic Sound Select, the D/K-codes 4
3)
HDEV3: Max. FM deviation must not exceed 540 kHz
4)
HDEV2: Max. FM deviation must not exceed 360 kHz
hex
hex
and 8
, 5
hex
are equivalent.
hex
and B
are equivalent.
hex
MICRONAS INTERMETALL 25
MSP 34x1G PRELIMINARY DATA SHEET
3.3.2.1. STANDARD SELECT Register
The TV sound sta ndard of t he MS P 3 4x1G d emodul ator is determined by the STANDARD SELECT register.
There are two ways to use the S TANDARD SELE CT
register:
– Setting up the demodulator for a TV sound standard
by sending the corresponding standard code with a
single I
– Starting the Automatic Standard Detection for ter-
restrial TV standa rds. This is the most comfortable
way to set up the demodulator. Within 0.5 s, the
detection and set-up of the actual TV sound standard is performed. The detected standard can be
read out of the STANDARD RESULT regi s ter by th e
control processor. This feature is recommended for
the primary set-up 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, tuning frequency, band-pass filters,
demodulation mode (FM, AM, or NICAM), carrier
mute, deemphasis, and identification mode.
2
C-Bus transmission.
3.3.2.2. Refresh of STANDARD SELECT Register
A general refresh of the STA NDAR D S EL ECT r eg ister
is not allowed. However, the following method
enables watching the MSP 34x1G “alive” status and
detection of accidental resets (only versions A2 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 necessary.
If a present sound standard is im poss ibl e for a spe ci fic
MSP version, it s witches t o the analo g mono sou nd of
this standard. In that c ase stereo or bilingual pr ocessing will not be possible.
For a complete setup of the TV sound processing from
analog IF input t o the source selection, the trans missions as shown in Section 3.5. are necessary.
Note: The FM matrix is set automatically if Automatic
Sound Select is active (MODUS[0]=1). In this case, the
FM matrix will be ini ti ali ze d wi th “ Sound A Mono”. During operation, the FM matrix will be automatically
selected accordin g to the actual id entification information.
For reasons of software compatibility to the
MSP 34x0D, a Manual/Compatibility mode is available. A detailed de scription of this mo de can be found
on page 83.
26 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
3.3.2.3. STANDARD RESULT Register
If Automatic Standard Detection is selected in the
STANDARD SELECT reg ister, status and result of t he
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 s ound st andard h as been detected
(no standard present, t oo much noise, st rong 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).
As long as the STANDARD RESULT register contains
a value greater than 07 FF
, the Automatic Standard
hex
Detection is still active. During this period, the MODUS
and STANDARD SELECT register must not be written.
The STATUS register will be updated when the Automatic Standard Detection has finished.
If a present sound standard is impossible for a specific
MSP version, it detects and switches to the analog
mono sound of this standard.
Example:
The MSPs 3431G and 3441G will detect a B/G-NICAM
signal as standard 3 and w ill switch to the ana log FMMono sound.
T able 3–8: Results of the Automatic Standard
Detection
Broadcasted Sound
Standard
Automatic Standard
Detection could not
find a sound standard
B/G-FM 0003
B/G-NICAM 0008
I 000A
FM-Radio 0040
M-Korea
M-Japan
M-BTSC
L-AM
D/K1
D/K2
L-NICAM
D/K-NICAM
Automatic Standard
Detection st ill active
STANDARD RESULT Register
Read 007E
0000
0002
0020
0030
0009
0004
0009
000B
>07FF
hex
hex
hex
hex
hex
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
hex
MICRONAS INTERMETALL 27
MSP 34x1G PRELIMINARY DATA SHEET
3.3.2.4. Write Registers on I2C Subaddress 10
Table 3–9: Write Registers on I2C Subaddress 10
Register
Function Name
Address
STANDARD SELECTION
00 20
hex
STANDARD SELECTION Register
Defines TV Sound or FM-Radio Standard
bit [15:0] 00 01
00 02
...
00 60
start Automatic Standard Detection
hex
Standard Codes (see Table 3–7))
hex
hex
MODUS
00 30
hex
MODUS Register
General MSP 34x1G Options
bit [0] 0/1 off/on: Automatic Sound Select
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)
hex
hex
STANDARD_SEL
MODUS
bit [2] 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])
2
bit [4] 0/1 active/tristate state of I
bit [5] 0/1 master/slave mode of I
S output pins
2
S interface (must be set to 0
(= Master) in case of NICAM mode)
2
bit [6] 0/1 Sony/Philips format of I
S word strobe
bit [7] 0/1 active/tristate state of audio clock output pin
AUD_CL_OUT
bit [8] 0/1 ANA_IN_1+/ANA_IN_2+;
select analog sound IF input pin
bit [11:9] 0 undefined, must be 0
Preference in Automatic Standard Detection:
bit [12] detected 6.5 MHz carrier is interpreted as:
1)
0 standard L (SECAM)
1 standard D/K1, D/K2 or D/K NICAM
bit [14:13] detected 4.5 MHz carrier is interpreted as:
1)
0 standard M (Korea)
1 standard M (BTSC)
2 standard M (Japan)
3 carrier at 4.5 MHz is ignored (chroma carrier)
bit [15] 0 undefined, must be 0
1)
Valid at the next start of Automatic Standard Detection.
28 MICRONAS INTERMETALL
PRELIMINARY DATA SHEET MSP 34x1G
3.3.2.5. Read Registers on I2C Subaddress 11
hex
T able 3–10: Read Registers on I2C Subaddress 11
Register
Function Name
Address
STANDARD RESULT
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
...
00 40
>07 FF
hex
Automatic Standard Detection still active
hex
STATUS
02 00
hex
STATUS Register
Contains all user relevant internal information about the status of the MSP
hex
STANDARD_RES
STATUS
bit [0] undefined
bit [1] 0 detected primary carrier (Mono or MPX carrier)
1 no primary carrier detected
bit [2] 0 detected secondary carrier (2nd A2 or SAP carrier)
1 no secondary carrier detected
bit [3] 0/1 low/high level of digital I/O pin D_CTR_I/O_0
bit [4] 0/1 low/high level of digital I/O pin D_CTR_I/O_1
bit [5,9] 00 analog sound standard (FM or AM) active
01 not obtainable
10 digital sound (NICAM) available (MSP 3411G and
MSP 3451G only)
11 bad reception condit io n of di gi ta l so un d (N ICAM ) due to :
a. high error rate
b. unimplemented sound code
c. data transmissio n o nly
bit [6] 0/1 mono/stereo indication
bit [7] 0/1 “1” indicates independent mono sound
(only for NICAM on MSP 3411G and MSP 3451G)
bit [8] 0/1 “1” indicates bilingual sound mode or SAP present
bit [15:10] 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.
MICRONAS INTERMETALL 29
MSP 34x1G PRELIMINARY DATA SHEET
3.3.2.6. Write Registers on I2C Subaddress 12
hex
Table 3–11: Write Registers on I2C Subaddress 12
Register
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
00
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
14
hex
hex
150 kHz FM deviation
360 kHz FM deviation (limit)
hex
)
FM very high deviation mode (HDEV3, MSP Standard Code = 6 and D
bit [15:8] 20
1A
hex
hex
450 kHz FM deviation
540 kHz FM deviation (limit)
Satellite FM with adaptive deemphasis
bit [15:8] 10
hex
recommendation
AM mode (MSP Standard Code = 9)
bit [15:8] 7C
hex
recommendation for SIF input levels from
0.1 V
to 0.8 V
pp
pp
(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
)
30 MICRONAS INTERMETALL
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