Datasheet TDA9614H Datasheet (Philips)

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Page 1

INTEGRATED CIRCUITS

DATA SH EET

TDA9614H

Audio processor for VHS hi-fi and linear audio

Preliminary speciﬁcation File under Integrated Circuits, IC02

Philips Semiconductors

1995 Mar 21

Page 2

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ and linear audio

CONTENTS

1 FEATURES 2 GENERAL DESCRIPTION 3 ORDERING INFORMATION 4 BLOCK DIAGRAM 5 PINNING 6 FUNCTIONAL DESCRIPTION

6.1 Audio I/O switching

6.1.1 Input Select (InputSel)

6.1.2 Normal Select (NormSel)

6.1.3 Volume L/R; AGC

6.1.4 Audio FM Output Mute (AFOMute); Normal Output Mute (NOMute)

6.1.5 Output Select (OutSel)

6.1.6 RF Converter Mute (RFCMute)

6.1.7 Line Select (LineSel)

6.1.8 Decoder Select (DecodeSel)

6.1.9 Headphone Select (HPSel)

6.1.10 Headphone volume

6.1.11 DC Select (DCSel)

6.2 Linear audio circuits

6.2.1 Record/loop-through

6.2.2 Playback

6.3 Audio FM circuits

6.3.1 Record/loop-through

6.3.2 Playback

6.3.3 Automatic calibration

6.3.4 PAL/NTSC mode

6.4 I2C-bus

6.5 Power-On Reset (POR); derived from digital supply voltage V

6.6 Control byte

6.7 Main select byte

6.8 Secondary select byte

6.9 Left/Right (L/R) volume byte

6.10 Headphone volume byte

6.11 Install byte

6.12 Test byte

6.13 Read byte

7 LIMITING VALUES 8 THERMAL CHARACTERISTICS 9 DC CHARACTERISTICS 10 AC CHARACTERISTICS

10.1 Record audio FM mode

10.2 Record linear audio mode

10.3 Playback Audio FM mode

10.4 Playback linear audio

11 INTERNAL CIRCUITRY

DDD

TDA9614H

12 TEST AND APPLICATION INFORMATION

12.1 RAF I/O (pin 12)

12.2 RCCOL, RCCOR, RBPF and RFIX (pins 59, 53, 55 and 49)

13 PACKAGE OUTLINE 14 SOLDERING

14.1 Plastic quad flat packages

14.1.1 By wave

14.1.2 By solder paste reflow

14.1.3 Repairing soldered joints (by hand-held soldering iron or pulse-heated solder tool)

15 DEFINITIONS 16 LIFE SUPPORT APPLICATIONS 17 PURCHASE OF PHILIPS I2C COMPONENTS

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Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ and linear audio

1 FEATURES

• All functions controlled by I2C-bus

• No adjustments needed by use of auto-calibration circuit

• Integrated Bandpass Filters (BPFs)

• Low-noise Phase-Locked Loop (PLL) FM (de)modulator

• Low-distortion sample-and-hold switching noise

suppressor

• Integrated HF Low-Pass Filter (LPF) and summator

• Integrated audio LPF

• 5 stereo inputs (left and right channel):

– TUNL and TUNR – CINL and CINR – EXT1L and EXT1R – EXT2L and EXT2R – EXT3L and EXT3R

• Additional mono input: Second Audio Program (SAP)

• Independent Input/Output (I/O) selections and 2nd line

output

• Linear audio

• DC output for VU meter drive

• Direct headphone drive

• RF converter output with overload Automatic Gain

Control (AGC)

• Integrated standby mode for low current consumption

• E-E performance (record + playback):

– Total Harmonic Distortion (THD): 0.05%

(−8 dBV, 1 kHz) – linearity error: 0.1 dB (−88 dBV, 1 kHz) – noise: −93 dBV (20 Hz to 20 kHz).

TDA9614H

2 GENERAL DESCRIPTION

The TDA9614H is an audio processing IC for VHS hi-fi and linear audio, digitally controlled via the I2C-bus. The FM (de)modulator and peak noise reduction functions are highly integrated, resulting in few external components and no external adjustments.

In addition special functions for audio mixing, dubbing and descrambling have been implemented.

3 ORDERING INFORMATION

TYPE NUMBER

TDA9614H QFP64

Note

1. When using IR reflow soldering it is recommended that the Drypack instructions in the (order number 9398 510 63011) are followed.

1995 Mar 21 3

NAME DESCRIPTION VERSION

(1)

plastic quad ﬂat package; 64 leads (lead length 1.95 mm); body 14 × 20 × 2.8 mm

PACKAGE

SOT319-2

“Quality Reference Handbook”

Page 4

Philips Semiconductors Preliminary speciﬁcation

MBE275

SUPPLY AND V

ref

HF AGC

BPF

RAF

LPF

LIMITER

LPF

LEVEL

DETECT

LIMITER

LEVEL

DETECT

PLL

1.3 MHz

1.4 MHz

CCO

PLL

1.7 MHz

1.8 MHz

CCO

AUDIO

CLIPPER

SAMPLE-

AND-

HOLD

SAMPLE-

AND-

HOLD

AUDIO

CLIPPER

RN IPN RN

PBSet

PB eq

RN IPN

AGCN

Normal Sel

Input Sel

NOISE REDUCTION

volume R

AUDIO

LPF

AFOMute

volume L

NOMute

Out Sel

RFCMute

volume HP

Line Sel

Dec Sel

HP Sel

6107113

8109

AFOMute

NOISE REDUCTION

AUDIO

LPF

DC Sel

RAF IPAF

DOC

MUTE

I C

50 43 58 54 42 49 61 53 59 60 62 12 13 14 15 16 63 64 52 51 37 38 39 40 41

48 47 46 45 447 8 9 10 112 3 4 5 61

28 29 2736353432333130

RBPF

FMIN

FMOUT

EQSW RECOUT PBIN

RECEQ LINREC RESSW

PBDC LININ

LINOUT

LINAGC SAP TUNR CINR EXT1R EXT2R EXT3R

TUNL CINL EXT1L EXT2L EXT3L

DCFBR EMPHR

DCREFR

DETR

RECTR

RFCAGC

RFCOUT

LINER

LINEL

LINE2R

LINE2L

HPOUTR

HPOUTL

DCOUTR

DCOUTL

DETL

RECTL

EMPHL

DCREFL

DCFBLAFNR

AFMR

AFNL

AFML

SSD

DDD SCLSDARAFCMUTE

ENVOUT

RCCOL

RCCOR

HIDRFIX

DDA1

SSA1

DDA2

SSA2

TDA9614H

ref

Fig.1 Block diagram.

Audio processor for VHS hi-ﬁ and linear audio

4 BLOCK DIAGRAM

TDA9614H

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Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

5 PINNING

SYMBOL PIN DESCRIPTION

SAP 1 Second Audio Program (SAP) input. TUNL 2 Left channel tuner input. TUNR 3 Right channel tuner input. CINL 4 Left channel cinch input. CINR 5 Right channel cinch input. EXT1L 6 Left channel external 1 input. EXT1R 7 Right channel external 1 input. EXT2L 8 Left channel external 2 input. EXT2R 9 Right channel external 2 input. EXT3L 10 Left channel external 3 input. EXT3R 11 Right channel external 3 input. RAF 12 Record/playback switch drive output for head ampliﬁer control or input for overruling

the I2C-bit RAF.

DDD

SDA 14 Data input/output for I2C-bus. SCL 15 Clock input for I2C-bus. V

SSD

RFCAGC 17 RF converter AGC-time constant. RFCOUT 18 RF converter drive output. LINE2L 19 Line 2 left output (e.g. decoder output). LINE2R 20 Line 2 right output (e.g. decoder output). LINEL 21 Line output left. LINER 22 Line output right. DCOUTL 23 VU meter drive output left. DCOUTR 24 VU meter drive output right. HPOUTL 25 Headphone drive output left. HPOUTR 26 Headphone drive output right. LINAGC 27 Linear audio AGC-time constant. LININ 28 Audio input for linear audio to REC equalizer and output select. LINOUT 29 Audio output from AGC or PB equalizer. EQSW 30 Long Play (LP) equalization switch; 15 Ω on resistance and 150 kΩ input impedance. RECEQ 31 Linear audio recording ampliﬁer negative feedback input for connecting a record

LINREC 32 Digital output controlled by I2C-bit RN; can be used to drive an external (high voltage)

RECOUT 33 Linear audio recording ampliﬁer output. PBIN 34 Linear audio playback ampliﬁer input; during playback the impedance is 100 kΩ;

RESSW 35 Long Play equalization switch 50 Ω on and 150 kΩ off impedance to PBIN. PBDC 36 Linear audio playback ampliﬁer DC decoupling.

13 Digital supply voltage for I2C-bus (+5 V).

16 Digital ground for I2C-bus.

equalization network.

head switch and possibly the bias oscillator.

during record the impedance is 7 Ω.

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Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN DESCRIPTION

DCFBL 37 DC feedback left. DCREFL 38 DC reference left. EMPHL 39 Total emphasis left (240 to 20 µs). RECTL 40 Rectiﬁer DC decoupling left. DETL 41 Attack/recovery timing left. V

ref

SSA1

DETR 44 Attack/recovery timing right. RECTR 45 Rectiﬁer DC decoupling right. EMPHR 46 Total emphasis right (240 to 20 µs). DCREFR 47 DC reference right. DCFBR 48 DC feedback right. RFIX 49 Fixed bias current generation circuit by using an external 180 kΩ resistor to ground. V

DDA1

AFNR 51 Audio output from noise reduction of right channel (record and loop-through) or audio

AFMR 52 Audio input for audio clipper of right channel (record and loop-through) or audio

RCCOR 53 Voltage-to-current transfer for right channel oscillator by means of an external resistor

SSA2

RBPF 55 Bias current generation for the internal band-pass ﬁlters by means of an external

FMOUT 56 FM output. FMIN 57 FM input. V

DDA2

RCCOL 59 Voltage-to-current transfer for left channel oscillator by means of an external resistor

ENVOUT 60 Level detector output (external capacitor required for ﬁltering). HID 61 Head Identiﬁcation Pulse (HID) input for sample-and-hold circuits. CMUTE 62 Mute timing (external capacitor required for playback mute). AFML 63 Audio input for audio clipper of left channel (record and loop-through) or audio output

AFNL 64 Audio output from noise reduction of left channel (record and loop-through) or audio

42 Noise ﬁltering of 3.8 V reference voltage (external capacitor required for ﬁltering). 43 Analog ground 1 for LF circuits.

50 Analog supply voltage 1 for LF circuits (+12 V).

input for noise reduction of right channel (playback).

output from sample-and-hold (playback).

to ground.

54 Analog ground 2 for HF circuits.

resistor to ground.

58 Analog supply voltage 2 for HF circuits (+5 V).

to ground.

from sample-and-hold circuit of left channel (playback).

input for noise reduction of left channel (playback).

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Philips Semiconductors Preliminary speciﬁcation

Fig.2 Pin configuration.

handbook, full pagewidth

TDA9614H

MBE278

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19

51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

RECOUT

PBIN

RESSW

PBDC

DCFBL

DCREFL

EMPHL

RECTL

DETL

DETR

RECTR

EMPHR

DCREFR

DCFBR

RFIX

AFNR

ref

SSA1

DDA1

SAP

TUNL

TUNR

CINL

CINR

EXT1L

EXT1R

EXT2L

EXT2R

EXT3L

EXT3R

RAF

SDA

SCL

RFCAGC RFCOUT

LINE2L

LINE2R

LINEL

LINER

DCOUTL

DCOUTR

HPOUTL

HPOUTR

LINAGC

LININ

LINOUT

EQSW

RECEQ

LINREC

DDD

SSD

AFNL

AFML

CMUTE

HID

ENVOUT

RCCOLVFMIN

FMOUT

RBPF

RCCOR

AFMR

DDA2

SSA2

Audio processor for VHS hi-ﬁ and linear audio

TDA9614H

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Philips Semiconductors Preliminary speciﬁcation

MBE276

TDA9614H

InputSel

TUNER

CINCH

EXT1

EXT2

EXT3

SAP

NORMAL

EXT3/ST

Volume L/R

14 dBto49 dB

MUTE

AFM MUTE

AFOMute

OutSel

STEREO

LEFT

RIGHT

NORMAL

NOR ST

NOR L

NOR R

MUTE

NORMAL MUTE

NOMute

AGC

OFF

NormalSel

InputSel

InputSel Volume

SAP

TUNER-left

HPSel

OutSel

LEFT

RIGHT

NORMAL

TUNER

CINCH

EXT1

EXT2

EXT3

SAP

LineSel

OutSel

NORMAL

EXT2

EXT3

Volume HP

16 dBto47 dB

MUTE

Decoder Sel

OutSel

TUNER

EXT1

EXT3

MUTE

RFCmute

DCSel

HPSel

STEREO

RFC

LINE

LINE2

decoder

headphone

VU meter

Fig.3 Audio input/output selections.

Audio processor for VHS hi-ﬁ and linear audio

6 FUNCTIONAL DESCRIPTION

TDA9614H

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Audio processor for VHS hi-ﬁ and linear audio

6.1 Audio I/O switching

6.1.1 INPUT SELECT (INPUTSEL) For the audio FM circuitry eight different audio signals can

be selected. The selection made here for hi-fi is also available for the linear audio circuitry.

1. TUNER (stereo input; internal tuner of VCR).

2. CINCH (stereo input; connection to hi-fi set).

3. EXT1 (stereo input; TV SCART1).

4. EXT2 (stereo input; decoder, 2nd VCR SCART2).

5. EXT3 (stereo input; front CINCH for e.g. camcorder).

6. SAP (mono input; ‘Second Audio Program’ audio carrier for NTSC or conventional FM carrier with NICAM reception).

7. NORMAL (linear audio; [playback] signal of linear audio).

When inserting a new video signal in an old audio/video recording the hi-fi audio track is erased. This setting can keep the current audio available on the hi-fi track by copying the (playback) linear audio signal to the hi-fi track during video insert.

8. EXT3/ST (input mix; mono EXT3 on left, mono hi-fi on right channel).

For linear audio use see Section 6.1.2.

6.1.2 NORMAL SELECT (NORMSEL)

For linear audio four settings can be selected:

1. INPUTSEL (mono signal from input select). This is the ‘standard’ setting. The signal source

selected with the input select is led to the linear audio circuit. The linear audio AGC should be switched on.

2. VOLUME (mono signal from [hi-fi] volume control). The signal source selected with the input select has

now volume control, the linear audio AGC should be switched off. This setting is for use with ‘audio dubbing’: inserting a new audio signal on the linear track in an old audio/video recording. A special audio dubbing feature is now possible by selecting ‘input mix’ EXT3/ST in the input select. This setting enables us to use the VCR as a mixer console: an audio source connected to EXT3 (front CINCH) can be adjusted and mixed together with the original hi-fi playback signal, using the left (EXT3) and right (hi-fi playback) volume controls.

TDA9614H

3. SAP (SAP input). This setting enables simultaneous recording of the

NTSC SAP signal on the linear track and TUNER stereo on the audio FM track. When receiving a NICAM audio signal, the linear audio can be used as a ‘backup’ track when received television signals are weak.

4. TUNER LEFT (left channel [language 1] of TUNER input).

When receiving dual language transmissions the main language (language 1) can be recorded on linear audio. Note that if the SAP input is not used it can be connected to the right TUNER channel, enabling language selection for linear audio.

6.1.3 VOLUME L/R; AGC

The volume controls are mainly intended for level adjusting of the audio signals to be recorded on the hi-fi track, however using the ‘VOLUME’ setting in the Normal Select it can also be used to control linear audio. The volume controls have a control range of +14 dB to −49 dB in 1 dB steps and a full mute. Because the volume controls are I2C-bus controlled their actual behaviour is defined by the VCR’s software. For instance user control can be ‘volume only’, ‘left + right’, ‘volume + balance’ or the setting can be defined by a ‘digital AGC’ software loop using the signals at the DC (VU meter) outputs.

The linear audio level can be controlled by an AGC circuit, which can be switched off when desired. In most cases the AGC should be used at all settings of the Normal Select except for ‘VOLUME’.

6.1.4 AUDIO FM OUTPUT MUTE (AFOMUTE);

NORMAL OUTPUT MUTE (NOMUTE)

The audio output signal of the audio FM circuit can be muted with AFOMute, the linear output signal can be muted using NOMute. If one of these signals is not used as an output (or input) signal it is best muted to further minimize crosstalk.

6.1.5 OUTPUT SELECT (OUTSEL)

This block is the ‘main’ output select function, possibly functional on all outputs. Each output however has some means to override this selection for its own output signal, to implement extra features. Eight selections are possible and they are shown in Table 1.

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Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

Table 1 Output select possibilities

SELECTION REMARK DESCRIPTION

STEREO LEFT hi-ﬁ left audio FM output signal left channel (language 1) RIGHT hi-ﬁ right audio FM output signal right channel (language 2) NORMAL linear audio linear audio NOR + ST linear and hi-ﬁ mix of audio FM stereo and linear audio NOR + L linear and left mix of audio FM left channel and linear audio NOR + R linear and right mix of audio FM right channel and linear audio MUTE mute

Note

1. STEREO is the ‘standard’ setting, LEFT and RIGHT are for language selection. Using the tuner as input or output

(1)

hi-ﬁ stereo audio FM output signal left and right channel

signal (record or loop-through of audio FM) the VCR can automatically switch from stereo to left (language 1) when a ‘dual language’ transmission is received. If the VCR is in playback mode and no hi-fi track is present (checking bit AFOM via the I2C-bus or using the level at pin 11) the VCR can switch the output select to NORMAL (or let the IC do this automatically by setting bit AUTN). If a hi-fi track is present the user may want to switch to LEFT and RIGHT if the recording made was a ‘dual language’ recording.

Furthermore the user may want to switch from a hi-fi selection to NORMAL, e.g. when a complete audio remix has been created on the linear track using ‘audio dubbing’ (see Section 6.7). ‘Audio dubbing’ can also be used to re-record the linear track with e.g. only commentary. Combined playback of this commentary together with the original hi-fi sound is then possible by means of a mix mode.

6.1.6 RF CONVERTER MUTE (RFCMUTE) The RFC output is a mono output derived from the output select, its output signal can be muted.

6.1.7 LINE SELECT (LINESEL) The line output select is normally connected to both CINCH (hi-fi set) and television (SCART1). Normally the audio signal

from the output select will be available at this output, but three extra selections are possible and they are shown in Table 2.

Table 2 Extra line select possibilities

SELECTION DESCRIPTION

NORMAL linear audio, useful for monitoring during ‘audio dubbing’

(1)

EXT2

(2)

EXT3

Notes

1. A signal from a source at EXT2 (laser disc or second VCR) can be connected to a television set at line out. Because this is a direct connection from the input to the line output buffers it is fully independent of any mode setting of the IC. Connection of a ‘Pay-TV’ decoder box to EXT2 and using this selection together with selecting EXT1 in the decoder select enables combined use of the decoder box by both TV and VCR. In Europe, use of the SCART connector ‘status line’ can automatize this switching.

2. Direct audio connection from input EXT3. If the line 2 outputs and EXT3 inputs are not used for external connections a built-in karaoke unit or sound processor can be inserted between line 2 and EXT3.

audio from input EXT2 audio from input EXT3

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Philips Semiconductors Preliminary speciﬁcation

+( )

------------------------------

×=

Audio processor for VHS hi-ﬁ and linear audio

6.1.8 DECODER SELECT (DECODESEL)

The line 2 output is normally connected to a decoder box or e.g. a second VCR (SCART2). Normally the audio signal from the output select will be available at this output, but three extra selections are shown in Table 3.

Table 3 Extra decoder select possibilities

SELECTION DESCRIPTION

TUNER EXT1 EXT3 audio from input EXT3

Notes

1. Enables the use of a decoder box (connected to line 2

2. Decoder box connection to television set

6.1.9 HEADPHONE SELECT (HPSEL)

The headphone output will normally carry the output select signal, however three more selections are possible and shown in Table 4.

(1)

(2)

[EXT2]) by the VCR.

(See Section 6.1.7).

audio from input TUNER audio from input EXT1

TDA9614H

both hi-fi audio channels, independent from the setting of output or headphone select. For this mode the selection STEREO can be made.

6.2 Linear audio circuits

6.2.1 RECORD/LOOP-THROUGH The signal selected with the normal select can be level

controlled in the AGC block. If wanted this AGC can be switched off using bit AGCN. The audio signal is thereafter DC decoupled using a capacitor between pin 29 (LINOUT) and pin 28 (LININ).

From here on the signal goes to the output select and (in the event of record mode) to the record equalizer. The record equalizer is a non-inverting amplifier with a gain of +12 dB, consisting of an opamp with feedback resistors, and acts as a pre-correction filter for the tape and head characteristics. The inverting input of the opamp is connected to pin 31 (RECEQ), its output to pin 33 (RECOUT). The circuit externally connected between pin 31 and ground defines the transfer of the record

equalizer with equation:

Where: Z is the complex impedance of the external circuit.

A 3.98

1200 Z

Table 4 Extra headphone select possibilities

SELECTION DESCRIPTION

(1)

LEFT

(1)

RIGHT NORMAL linear audio, useful for monitoring the

Note

1. The selections LEFT and RIGHT make it possible to select a different language for the headphone as for the line outputs. A possible implementation is to invert always a language selection made at the output select.

6.1.10 H

The headphone volume control has a control range of +16 dB to −47 dB in 1 dB steps and a full mute.

6.1.11 DC SELECT (DCSEL)

The VU meter output is normally connected to the headphone select, but can also be switched to STEREO (hi-fi stereo, before the output select). When using the VU meter output signal to implement a ‘digital AGC’ (read the level at the DC output, and adjust the VOLUME L/R controls accordingly) it is necessary to have information of

left hi-ﬁ channel right hi-ﬁ channel

recording by ‘audio dubbing’

EADPHONE VOLUME

Two equalizings can be used, switching additional circuitry to ground with pin 30 (EQSW) in long play or extended play (I2C-bus: LP = 1).

Instead of the hi-fi circuit, linear audio has two loop-through modes:

• Loop-through playback

• Loop-through record.

The only difference between Loop-through record and record is the RECOUT output, which is muted.

The LINREC output (pin 32) is used to drive the external high-voltage switch and possibly the bias oscillator. The LINREC voltage has a small internal delay to be non-overlapping with the internal switching to playback mode. This ensures that no bias voltage will appear at the PBIN input while the IC is in playback mode.

6.2.2 P The signal coming from the head is amplified and can be

level controlled in 16 steps of 1 dB. This setting can be used to adjust for spread or nominal difference in head output level. Afterwards, the signal is frequency corrected in the playback equalizer. This equalizer includes the two standard VHS equalizing settings of 3180 and 120 µs

LAYBACK

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Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ and linear audio

(standard play: LP = 0) and 3180 and 170 µs (Long Play: LP = 1).

The signal is DC decoupled and routed to the output select via pins 29 and 28. When switching to or from playback the signal should be muted shortly using the Normal Output Mute (NOM) to prevent audible clicks caused by offset differences of the playback amplifier and AGC.

6.3 Audio FM circuits

6.3.1 RECORD/LOOP-THROUGH

After low-pass filtering and signal compression in the Noise Reduction (NR) the audio signal is available at AFNL and AFNR. Through a DC-decoupling capacitor the compressed audio signal is fed to an audio clipper at AFML and AFMR. Subsequently, the audio signal is FM-modulated on a RF-carrier using an integrated current-controlled oscillator (CCO). Each CCO (L and R) requires an external resistor (RCCOL/R) for temperature stability. Through automatic calibration both the oscillator centre frequency and FM-deviation are adjusted. After low-pass filtering and summation of the two RF-carriers, the FM signal is available at FMOUT during record. During loop-through the FMOUT pin is inactive.

The RAF pin reflects the status of the RAF-bit when it is used as output pin. In this case it is meant to switch the head amplifier between record and playback position. It can also be used as an input pin to overrule the RAF-bit thereby forcing the IC in record or playback/loop-through position.

6.3.2 PLAYBACK

The two FM modulated RF carriers, presented at FMIN, are fed to an AGC circuit. The AGC operates on the peak level of the added BPF output signals. As a result, the input signal of the BPFs is kept constant for FMIN voltages >30 mV (RMS value) both carriers added. In this way the dynamic range of the integrated BPFs is optimally used over a large input signal range. Subsequently, the RF carriers are bandpass filtered using two integrated BPFs. These bandpass filters are automatically calibrated as described in Section 6.3.3. An external resistor (RBPF) is required for temperature stability.

The filtered input signals are fed to a limiter. The limiter output signal is demodulated by means of a PLL demodulator. The LF audio signal is fed through a sample-and-hold circuit to suppress head-switching noise. The demodulated audio is available at AFML and AFMR. Through a decoupling capacitor the audio signal is applied to an audio low-pass filter at AFNL and AFNR. The

TDA9614H

low-pass filtered audio signal is expanded in the noise reduction.

If the left channel carrier at FMIN falls below the mute level of 4.2 mV (RMS value) the audio signal is muted in front of the low-pass filter. This is achieved by comparing the left channel level detector signal with an internal reference. The mute timing is fixed by a capacitor at the CMUTE pin. If the level at CMUTE rises above a certain threshold, the PBMUTE bit is set. This will mute the audio signal. If bit AUTN has been set, the output selection will automatically switch to NORMAL mode. The left channel level detector output is also available at pin ENVOUT. An AGC correction voltage is added at this pin, such that the ENVOUT voltage indicates the left channel FM-carrier level even within the AGC-range. The ENVOUT voltage can be used for auto-tracking of the FM-audio heads.

In the event of drop-outs in the incoming FM signal, the left channel level detector is also used to activate the sample-and-hold. This drop-out cancellation is only active if bit DOC has been set.

6.3.3 AUTOMATIC CALIBRATION By means of bit CALS the two integrated oscillators and

bandpass filters can be calibrated in Loop-Through (LT) or record (REC) mode. Normally this will be done after start-up of the VCR. After setting of bit CALS the calibration procedure is automatically executed as shown in Fig.4. The calibration starts at the first negative edge of HID after CALS has been set. During the LOW period of HID (20 ms for PAL) the number of oscillator cycles is compared to a certain value stored in a Read Only Memory (ROM).

Therefore, the final oscillator frequency is proportional to the inverse of the HID LOW-time. This means that an error of 1 µs in the HID LOW-time will result in an additional frequency error of approximately 100 Hz. The maximum number of required HID cycles for one complete oscillator calibration is six, which is equal to 240 ms.

After both oscillators have been calibrated the bandpass filters are calibrated using the right channel oscillator as reference frequency generator (1.6 MHz for PAL). This will take <10 ms.

Bit CALR is set to 1 if the calibration has been executed successfully. CALR is 0 if:

• A Power-On Reset (POR) has occurred.

• The calibration is running.

• The initial oscillator and bandpass frequencies are too

low or too high for a successful calibration.

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Philips Semiconductors Preliminary speciﬁcation

Fig.4 Timing diagram of automatic calibration.

MBE281

max 240 ms

max 10 ms

HID

CALS

LEFT

OSCILLATOR

RIGHT

OSCILLATOR

CALR

BANDPASS

FILTERS

W bit = 0, a subaddress byte and eight data bytes. If more than one data byte follows the subaddress, these bytes are stored in the successive registers by the automatic address increment feature. As slave transmitter (R/W bit = 1) there is one read byte.

Audio processor for VHS hi-ﬁ and linear audio

TDA9614H

If CALS is reset during CALR = 0, the calibration will be stopped if it was not finished yet. If required, a new calibration can be started using CALS.

WARNING: the IC should not be calibrated in a test or standby mode.

6.3.4 PAL/NTSC MODE Depending on bit NTSC the IC is calibrated in PAL or

NTSC mode using bit CALS. After an automatic calibration the oscillator frequencies can be switched between PAL and NTSC using bit NTSC. This centre frequency shift is done without automatic calibration. During playback (PB) or loop-through (LT) a change in bit NTSC will automatically calibrate the bandpass filters again. This will take <10 ms.

1995 Mar 21 13

WARNING: A change of PB to REC, LT to REC and PAL to NTSC should not be combined in one transmitted byte. The PAL to NTSC transition should be preceded by the PB to REC or LT to REC transition.

6.4 I2C-bus

The TDA9614H is controlled via the 2-wire I2C-bus, in accordance with the I2C-bus specification. As slave receiver for programming there is one module address, with R/

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Table 5 TDA9614H addresses and data bytes

NAME ADDRESS

Slave address byte 1 0 1 1 1 0 0 R/ Subaddress bytes 00 to 07 0 0 0 0 0 X Control byte (subaddress 00) RAF IPAF AFOM NTSC RN IPN NOM LP Main select byte

(subaddress 01) Secondary select byte

(subaddress 02) Left volume byte

(subaddress 03) Right volume byte

(subaddress 04) Headphone volume byte

(subaddress 05) Install byte (subaddress 06) DEV1 DEV0 NPL3 NPL2 NPL1 NPL0 AUTN DOC Test byte (subaddress 07) STBY CALS AGCN TST4 TST3 TST2 TST1 TST0 Read byte (address B9) CALR PAFM 1 POR 1 0 1 1

IS2 IS1 IS0 NS1 NS0 OSL OSR OSN

HSL HSR DCS RFCM LOS1 LOS0 DOS1 DOS0

0 VLM VL5 VL4 VL3 VL2 VL1 VL0

0 VRM VR5 VR4 VR3 VR2 VR1 VR0

0 VHM VH5 VH4 VH3 VH2 VH1 VH0

(1)

Note

1. These bits determine the subaddress.

6.5 Power-On Reset (POR); derived from digital supply voltage V

In the data byte descriptions [por] indicates the mode after POR. The status of the data bytes after POR is shown in Table 6.

Table 6 Status of data bytes after POR

DATA BYTE ADDRESS

Control byte 0 1 1 0 0 1 1 0 Main select byte 0 0 0 0 0 1 1 0 Secondary select byte 1 1 0 0 0 0 0 0 Left volume byte 0 0 1 1 0 0 0 1 Right volume byte 0 0 1 1 0 0 0 1 Headphone volume byte 0 0 1 0 1 1 1 1 Install byte 0 1 0 1 1 1 0 1 Test byte 0 0 0 0 0 0 0 0

A POR occurrence is signalled by bit POR in the read byte (see Table 39).

DDD

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6.6 Control byte Table 7 Bits of control byte

BIT DESCRIPTION

RAF Record Audio FM; see Table 8 IPAF Inverse Playback Audio FM; see Table 8 AFOM Audio FM Output Mute; see Table 9 NTSC NTSC; television standard; see Table 10 RN Record Normal; see Table 11 IPN Inverse Playback Normal; see Table 11 NOM Normal Output Mute; see Table 12 LP Long Play mode; see Table 13

Table 8 Bits RAF and IPAF

(1)

RAF

0 0 playback NR and modem in playback mode 0 1 loop-through NR in record mode; modem not active [por] 1 0 record 1 1 record

IPAF MODE DESCRIPTION

(2) (2)

NR and modem in record mode NR and modem in record mode

TDA9614H

Notes

1. The RAF bit can be overruled externally by applying a low-ohmic voltage to the RAF I/O (pin 12) either logic 0 or logic 1 (0 or +5 V). The actual mode of the IC is determined by the level measured at this pin, enabling fast switching between record and playback/loop-through.

2. The two record modes are equal, only differing in their reaction to forcing RAF LOW at the RAF I/O pin; the status of the IPAF bit determines whether the IC is switched to the playback or loop-through mode.

Table 9 Bit AFOM

AFOM MODE DESCRIPTION

0 − − 1 mute

Note

1. Audio coming from the audio FM circuit is muted, either the signal from tape in playback or the loop-through signal in record or loop-through modes.

Table 10 Bit NTSC

NTSC MODE DESCRIPTION

0 PAL modem and BPF set to PAL carrier frequencies [por] 1 NTSC modem and BPF set to NTSC carrier frequencies

(1)

output from audio FM (NR) circuit is muted [por]

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Table 11 Bits RN and IPN

(1)

0 0 playback linear audio circuit in playback mode 0 1 loop-through P linear audio circuit in loop-through mode (playback ready) [por] 1 0 loop-through R 1 1 record linear audio circuit in record mode

Notes

1. Bit RN is output at LINREC (pin 32), which is used to drive an external (high voltage) head switch and possibly the bias oscillator. The two loop-through modes are equal in signal flow, however they differ in the state of the head switches (the internal switch at PBIN [pin 34] and the external head switch driven by pin LINREC).

2. Loop-through R is equal to record except for the RECOUT output (pin 33) which is muted.

Table 12 Bit NOM

NOM MODE DESCRIPTION

0 − − 1 mute

IPN MODE DESCRIPTION

(1)

(2)

output from linear audio circuit is muted [por]

linear audio circuit in loop-through mode (record ready)

Note

1. Audio coming from the linear audio circuit is muted, either the signal from tape in playback or the loop-through signal in record or loop-through modes. To avoid clicks when changing the mode of the linear audio circuit to or from playback, the output should be muted shortly, using this bit.

Table 13 Bit LP

LP MODE DESCRIPTION

0 SP Record and playback equalizing set for Standard Play [por].

Record equalization switch at EQSW (pin 30) and playback equalization switch at RESSW (pin 35) are open (high impedance). The internal playback equalizing is 3180 and 120 µs. It can be changed to 2544 and 96 µs by selecting test number 31 (see Section 6.12).

1 LP Record and playback equalizing set for Long Play.

Record equalization switch at EQSW (pin 30) and playback equalization switch at RESSW (pin 35) are closed. The internal playback equalizing is 3180 and 170 µs. It can be changed to 2731 and 146 µs by selecting test number 31 (see Section 6.12).

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6.7 Main select byte

Table 14 Bits of main select byte

BIT DESCRIPTION

IS2 to IS0 Input Select 2 to Input Select 0; see Table 15 NS1 and NS0 Normal Select 1 and Normal Select 0; see Table 16 OSL Output Select Left; see Table 17 OSR Output Select Right; see Table 17 OSN Output Select Normal; see Table 17

Table 15 Bits IS2 to IS0; note 1

IS2 IS1 IS0 MODE SELECTED INPUT SOURCE

0 0 0 Tuner TUNL and TUNR [por] 0 0 1 Cinch CINL and CINR 0 1 0 Ext1 EXT1L and EXT1R (e.g. SCART1; TV connector) 0 1 1 Ext2 EXT2L and EXT2R (e.g. SCART2; decoder connector) 1 0 0 Ext3 EXT3L and EXT3R (e.g. front cinch) 1 0 1 SAP additional mono input (SAP; pin 1) 1 1 0 Normal 1 1 1 Dub Mix

(2)

(2)(3)

output from linear audio (LININ; pin 28) mixing of EXT3 input with hi-ﬁ output signal

TDA9614H

Notes

1. With bits IS2 to IS0, the stereo input signal is selected which is led to the hi-fi processing. One out of five stereo sources can be selected. The five stereo inputs differ in their connectivity; with bits NS1 and NS0 tuner left (TUNL; pin 2) can be selected as linear audio input source, with bits LOS1 and LOS0 Normal, Ext2 and Ext3 are directly connectable to Line out and to DOS1 and DOS0 Tuner, Ext1 and Ext3 are directly connectable to decoder out (2nd Line Out).

2. Remark: when using the selections Normal or Dub Mix be aware of signal loops (which should be avoided) because this can lead to large audio oscillations.

3. The selection Dub Mix is a special function in which a mono signal derived from the Ext3 inputs (1⁄2EXT3L +1⁄2EXT3R) is led to the left input and a mono signal derived from the audio FM output (1⁄2L +1⁄2R) is led to the right input channel. This function can be used for audio dubbing using the volume controls as a mixing desk.

Table 16 Bits NS1 and NS0; note 1

NS1 NS0 MODE DESCRIPTION

0 0 Input linear audio input source is equal to hi-ﬁ input [por] 0 1 Volume linear audio input source is equal to hi-ﬁ input, inclusive volume control 1 0 SAP additional mono input (SAP; pin 1) is selected 1 1 Tuner L left channel of tuner input is selected

Note

1. With bits NS1 and NS0 the input signal is selected for the linear audio circuit. When a stereo input source is selected, a mono signal is made by adding the left and right channel. Furthermore two independent selections can be made (the mono input SAP or the left channel of tuner e.g. for dual language). If in the volume mode the built-in AGC circuit is switched off by using bit AGCN, the audio level can be controlled by the left and right volume controls (VLx and VRx).

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Table 17 Bits OSL, OSR and OSN; note 1

OSL OSR OSN MODE DESCRIPTION

1 1 0 stereo LEFT at left channel; RIGHT at right channel [por]. 1 0 0 left LEFT at both left and right channels. 0 1 0 right RIGHT at both left and right channels. 0 0 0 mute No selection. 1 1 1 mixed stereo LEFT + NORMAL added at left channel; RIGHT + NORMAL added at

right channel. 1 0 1 mixed left LEFT + NORMAL added at both left and right channels. 0 1 1 mixed right RIGHT + NORMAL added at both left and right channels. 0 0 1 normal NORMAL (is linear audio) at both left and right channels.

Note

1. The bits OSL, OSR and OSN provide eight output select functions. LEFT and RIGHT are the left and right hi-fi channels; NORMAL is the linear audio channel (LININ; pin 28). This selection is normally output at line out (LINEL and LINER), RFCOUT (pin 18), decoder out (LINE2L and LINE2R), headphone out (HPOUTL and HPOUTR) and DC out (DCOUTL and DCOUTR). However line out can be overruled by bits LOS1 and LOS0; decoder out can be overruled by bits DOS1 and DOS0, headphone out (and DC out) can be overruled by bits HSL and HSR and DC out can be overruled by bit DCS.

Remark: if AUTN = 1 (see Section 6.11) the output select modes stereo, left and right will be forced to normal as long as the audio FM circuit is in playback mode and the internal PB mute signal is generated (no hi-fi track on tape). The status of this internal mute signal can be read by bit PAFM (see Section 6.13).

6.8 Secondary select byte

Table 18 Bits of secondary select byte

BIT DESCRIPTION

HSL Headphone Select Left; see Table 19 HSR Headphone Select Right; see Table 19 DCS DC Select; see Table 20 RFCM RFC Mute; see Table 21 LOS1 and LOS0 Line Output Select 1 and Line Output Select 0; see Table 22 DOS1 and DOS0 Decoder Output Select 1 and Decoder Output Select 0; see Table 23

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Table 19 Bits HSL and HSR

HSL HSR MODE DESCRIPTION

1 1 outsel Headphone signal set by the output selection [por]. 1 0 left LEFT at both headphone out left and right. 0 1 right RIGHT at both headphone out left and right. 0 0 normal NORMAL (is linear audio) at both headphone outputs.

Normally the headphone output signal is set by the output selection OSL, OSR and OSN (see Table 17). Furthermore three independent selections can be made: LEFT hi-fi channel, RIGHT hi-fi channel (language selection) and NORMAL (e.g. monitoring an audio dubbing recording). These headphone selections are also active for the VU meter output (DC out), unless bit DCS = 1.

Table 20 Bit DCS

DCS MODE DESCRIPTION

0 headphone DC output is set by Headphone Select [por]. 1 stereo DC output is hi-ﬁ stereo.

Note

1. The signal at DC out (DCOUTL and DCOUTR; pins 23 and 24) is normally the signal which can be listened to by the headphone. For use in concepts with digital AGC (using the DC output signal to control the left and right volume settings), an independent selection to hi-fi stereo can be made.

(1)

Table 21 Bit RFCM

RFCM MODE DESCRIPTION

0 − [por] 1 mute

Note

1. The audio signal at RF converter out (a mono version of the signal selected with the output select with overload AGC) can be independently muted.

Table 22 Bits LOS1 and LOS0; note 1

LOS1 LOS0 MODE DESCRIPTION

0 0 Outsel Line output selection is set by output select function [por]. 0 1 Normal Linear audio is connected to line output. 1 0 Ext2 Ext2 input is directly connected to line output. 1 1 Ext3 Ext3 input is directly connected to line output.

Note

1. With the line output select some special connections can be made overruling the output select (OSL, OSR and OSN), e.g. for connecting a decoder box (for a pay-TV channel) to a television set via the VCR.

(1)

RF converter output signal muted

(1)

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Table 23 Bits DOS1 and DOS0; note 1

DOS1 DOS0 MODE DESCRIPTION

0 0 Outsel Decoder output selection is set by output select function [por]. 0 1 Tuner Tuner input is directly connected to decoder output. 1 0 Ext1 Ext1 input is directly connected to decoder output. 1 1 Ext3 Ext3 is directly connected to decoder output.

Note

1. With the decoder output select some special connections can be made overruling the output select (OSL, OSR and OSN), e.g. for connecting a decoder box to the VCR.

6.9 Left/Right (L/R) volume byte

Table 24 Bits of Left/Right volume byte

BIT DESCRIPTION

VLM Volume Left Mute; see Table 25 VL5 to VL0 Volume Left 5 to Volume Left 0; see Table 25 VRM Volume Right Mute; see Table 25 VR5 to VR0 Volume Right 5 to Volume Right 0; see Table 25

Table 25 Left/Right volume byte; notes 1 and 2

VLM VL5 VL4 VL3 VL2 VL1 VL0

VRM VR5 VR4 VR3 VR2 VR1 VR0

1 X X X X X X mute 0 0 0 0 0 0 0 −49 dB 0 0 0 0 0 0 1 −48 dB 0 0 0 0 0 1 0 −47 dB 0 0 0 0 0 1 1 −46 dB 0 0 0 0 1 0 0 −45 dB 0 0 0 0 1 0 1 −44 dB 0 0 0 0 1 1 0 −43 dB 0 0 0 0 1 1 1 −42 dB 0 0 0 1 0 0 0 −41 dB 0 0 0 1 0 0 1 −40 dB 0 0 0 1 0 1 0 −39 dB 0 0 0 1 0 1 1 −38 dB 0 0 0 1 1 0 0 −37 dB 0 0 0 1 1 0 1 −36 dB 0 0 0 1 1 1 0 −35 dB 0 0 0 1 1 1 1 −34 dB 0 0 1 0 0 0 0 −33 dB 0 0 1 0 0 0 1 −32 dB 0 0 1 0 0 1 0 −31 dB

MODE

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VLM VL5 VL4 VL3 VL2 VL1 VL0

VRM VR5 VR4 VR3 VR2 VR1 VR0

0 0 1 0 0 1 1 −30 dB 0 0 1 0 1 0 0 −29 dB 0 0 1 0 1 0 1 −28 dB 0 0 1 0 1 1 0 −27 dB 0 0 1 0 1 1 1 −26 dB 0 0 1 1 0 0 0 −25 dB 0 0 1 1 0 0 1 −24 dB 0 0 1 1 0 1 0 −23 dB 0 0 1 1 0 1 1 −22 dB 0 0 1 1 1 0 0 −21 dB 0 0 1 1 1 0 1 −20 dB 0 0 1 1 1 1 0 −19 dB 0 0 1 1 1 1 1 −18 dB 0 1 0 0 0 0 0 −17 dB 0 1 0 0 0 0 1 −16 dB 0 1 0 0 0 1 0 −15 dB 0 1 0 0 0 1 1 −14 dB 0 1 0 0 1 0 0 −13 dB 0 1 0 0 1 0 1 −12 dB 0 1 0 0 1 1 0 −11 dB 0 1 0 0 1 1 1 −10 dB 0 1 0 1 0 0 0 −9 dB 0 1 0 1 0 0 1 −8 dB 0 1 0 1 0 1 0 −7 dB 0 1 0 1 0 1 1 −6 dB 0 1 0 1 1 0 0 −5 dB 0 1 0 1 1 0 1 −4 dB 0 1 0 1 1 1 0 −3 dB 0 1 0 1 1 1 1 −2 dB 0 1 1 0 0 0 0 −1 dB 0 1 1 0 0 0 1 0 dB [por] 0 1 1 0 0 1 0 1 dB 0 1 1 0 0 1 1 2 dB 0 1 1 0 1 0 0 3 dB 0 1 1 0 1 0 1 4 dB 0 1 1 0 1 1 0 5 dB 0 1 1 0 1 1 1 6 dB 0 1 1 1 0 0 0 7 dB 0 1 1 1 0 0 1 8 dB

MODE

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VLM VL5 VL4 VL3 VL2 VL1 VL0

VRM VR5 VR4 VR3 VR2 VR1 VR0

0 1 1 1 0 1 0 9 dB 0 1 1 1 0 1 1 10 dB 0 1 1 1 1 0 0 11 dB 0 1 1 1 1 0 1 12 dB 0 1 1 1 1 1 0 13 dB 0 1 1 1 1 1 1 14 dB

Notes

1. X = don’t care.

2. Optimum mute performance is achieved by combination of the mute bit (VLM and/or VRM) with the smallest volume setting (Vx5 to Vx0 = ‘000000’).

6.10 Headphone volume byte

Table 26 Bits of Left/Right volume byte

BIT DESCRIPTION

VHM Volume Headphone Mute; see Table 27 VH5 to VH0 Volume Headphone 5 to Volume Headphone 0; see Table 27

MODE

Table 27 Headphone volume byte; notes 1 and 2

VHM VH5 VH4 VH3 VH2 VH1 VH0 MODE

1 X X X X X X mute 0 0 0 0 0 0 0 −47 dB 0 0 0 0 0 0 1 −46 dB 0 0 0 0 0 1 0 −45 dB 0 0 0 0 0 1 1 −44 dB 0 0 0 0 1 0 0 −43 dB 0 0 0 0 1 0 1 −42 dB 0 0 0 0 1 1 0 −41 dB 0 0 0 0 1 1 1 −40 dB 0 0 0 1 0 0 0 −39 dB 0 0 0 1 0 0 1 −38 dB 0 0 0 1 0 1 0 −37 dB 0 0 0 1 0 1 1 −36 dB 0 0 0 1 1 0 0 −35 dB 0 0 0 1 1 0 1 −34 dB 0 0 0 1 1 1 0 −33 dB 0 0 0 1 1 1 1 −32 dB 0 0 1 0 0 0 0 −31 dB 0 0 1 0 0 0 1 −30 dB 0 0 1 0 0 1 0 −29 dB

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VHM VH5 VH4 VH3 VH2 VH1 VH0 MODE

0 0 1 0 0 1 1 −28 dB 0 0 1 0 1 0 0 −27 dB 0 0 1 0 1 0 1 −26 dB 0 0 1 0 1 1 0 −25 dB 0 0 1 0 1 1 1 −24 dB 0 0 1 1 0 0 0 −23 dB 0 0 1 1 0 0 1 −22 dB 0 0 1 1 0 1 0 −21 dB 0 0 1 1 0 1 1 −20 dB 0 0 1 1 1 0 0 −19 dB 0 0 1 1 1 0 1 −18 dB 0 0 1 1 1 1 0 −17 dB 0 0 1 1 1 1 1 −16 dB 0 1 0 0 0 0 0 −15 dB 0 1 0 0 0 0 1 −14 dB 0 1 0 0 0 1 0 −13 dB 0 1 0 0 0 1 1 −12 dB 0 1 0 0 1 0 0 −11 dB 0 1 0 0 1 0 1 −10 dB 0 1 0 0 1 1 0 −9 dB 0 1 0 0 1 1 1 −8 dB 0 1 0 1 0 0 0 −7 dB 0 1 0 1 0 0 1 −6 dB 0 1 0 1 0 1 0 −5 dB 0 1 0 1 0 1 1 −4 dB 0 1 0 1 1 0 0 −3 dB 0 1 0 1 1 0 1 −2 dB 0 1 0 1 1 1 0 −1 dB 0 1 0 1 1 1 1 0 dB [por] 0 1 1 0 0 0 0 1 dB 0 1 1 0 0 0 1 2 dB 0 1 1 0 0 1 0 3 dB 0 1 1 0 0 1 1 4 dB 0 1 1 0 1 0 0 5 dB 0 1 1 0 1 0 1 6 dB 0 1 1 0 1 1 0 7 dB 0 1 1 0 1 1 1 8 dB 0 1 1 1 0 0 0 9 dB 0 1 1 1 0 0 1 10 dB 0 1 1 1 0 1 0 11 dB 0 1 1 1 0 1 1 12 dB

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VHM VH5 VH4 VH3 VH2 VH1 VH0 MODE

0 1 1 1 1 0 0 13 dB 0 1 1 1 1 0 1 14 dB 0 1 1 1 1 1 0 15 dB 0 1 1 1 1 1 1 16 dB

Notes

1. X = don’t care.

2. Optimum mute performance is achieved by combination of the mute bit (VHM) with the smallest volume setting (VH5 to VH0 = ‘000000’).

6.11 Install byte

Table 28 Bits of install byte

BIT DESCRIPTION

DEV1 and DEV0 Deviation 1 and Deviation 0; see Table 29 NPL3 to NPL0 Normal Playback Level 3 to Normal Playback Level 0; see Table 30 AUTN Auto Normal; see Table 31 DOC Drop-out Cancellation; see Table 32

Table 29 Bits DEV1 and DEV0; note 1

DEV1 DEV0 MODE DESCRIPTION

0 0 56 kHz deviation of modem set to 56 kHz (equals 50 kHz; −10 dBV);

1 kHz audio

0 1 50 kHz deviation of modem set to 50 kHz (equals 50 kHz; −8 dBV);

1 kHz audio

1 0 45 kHz deviation of modem set to 45 kHz (equals 50 kHz; −6 dBV);

1 kHz audio

1 1 40 kHz deviation of modem set to 40 kHz (equals 50 kHz; −4 dBV);

1 kHz audio

Note

1. A selection of four different settings of FM deviation/audio level can be made for the audio FM circuit.

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Table 30 Normal Playback Level bits; note 1

NPL3 NPL2 NPL1 NPL0 MODE

0 0 0 0 −7 dB 0 0 0 1 −6 dB 0 0 1 0 −5 dB 0 0 1 1 −4 dB 0 1 0 0 −3 dB 0 1 0 1 −2 dB 0 1 1 0 −1 dB 0 1 1 1 0 dB [por] 1 0 0 0 1 dB 1 0 0 1 2 dB 1 0 1 0 3 dB 1 0 1 1 4 dB 1 1 0 0 5 dB 1 1 0 1 6 dB 1 1 1 0 7 dB 1 1 1 1 8 dB

TDA9614H

Note

1. A selection of 16 settings of amplification in the linear audio playback amplifier can be made. This can be used for adjustment purposes or as a fixed setting.

Table 31 Bit AUTN; note 1

AUTN MODE DESCRIPTION

0 − Audio FM signal is muted, when no hi-ﬁ tracks are found in

playback [por].

1 auto normal Output select is switched to normal, when no hi-ﬁ tracks are found in

playback.

Note

1. When the audio FM circuit is in playback and there is no FM input signal (playback of a conventional recording) the audio FM circuitry is muted. If this situation occurs and AUTN = 1 the selections stereo, left or right in the output select (OSR, OSL and OSN) are overridden and the selection normal is made. This means that linear audio is the output signal for as long as the internal playback mute is active. The status of this internal mute signal can be read by bit PAFM (see Section 6.13).

Table 32 Bit DOC

DOC MODE DESCRIPTION

0 − − 1 drop-out cancel

(1)

audibility of short drop-outs is minimized [por]

Note

1. When DOC = 1 an additional sample-and-hold circuit is activated during drop-outs in the FM input signal, minimizing their audibility.

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6.12 Test byte

Table 33 Bits of test byte

BIT DESCRIPTION

STBY Standby; see Table 34 CALS Calibration Start; see Table 35 AGCN AGC Not; see Table 36 TST4 to TST0 Test 4 to Test 0; see Table 37

Table 34 Bit STBY

STBY MODE DESCRIPTION

0 − normal operation [por] 1 standby

Note

1. When STBY = 1 the IC is partly switched off to minimize its power consumption. The I2C-bus and the direct connections between inputs and outputs (selectable with bits: LOS1, LOS0, DOS1 and DOS0) are still operable in standby mode.

(1)

standby mode (low power consumption)

Table 35 Bit CALS

CALS MODE DESCRIPTION

0 − [por] 1 auto-calibrate

Note

1. When CALS is made logic 1 after being logic 0 the IC performs an automatic frequency calibration of the modem CCOs and the built-in bandpass filters (BPFs). During calibration, the IC should be in record or loop-through mode. The calibration takes <500 ms and uses the HID input (25 Hz in PAL mode or 30 Hz in NTSC mode) as the reference frequency. The bit CALR (see Section 6.13) can be read to check if the calibration has been completed successfully.

Table 36 Bit AGCN; note 1

AGCN MODE DESCRIPTION

0 AGC on linear audio record; AGC active [por] 1 AGC off linear audio record; AGC inactive

Note

1. With bit AGCN the linear audio record AGC can be switched (off and on).

(1)

oscillators and BPFs are automatically calibrated

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Table 37 Test bits TST4 to TST0; note 1

TST4 TST3 TST2 TST1 TST0 MODE DESCRIPTION

0 0 0 0 0 − [por] 0 0 0 0 1 VCO test L in record mode: only 1.4 or 1.3 MHz at FMOUT 0 0 0 1 0 VCO test R in record mode: only 1.8 or 1.7 MHz at FMOUT 0 0 0 1 1 BPF test L in playback mode: only left BPF at FMOUT;

HF AGC switched off

0 0 1 0 0 BPF test R in playback mode: only right BPF at FMOUT;

HF AGC switched off 0 0 1 0 1 Test not for application 0 0 1 1 0 Test not for application 0 0 1 1 1 Test not for application 0 1 0 0 0 Test not for application 0 1 0 0 1 Test not for application 0 1 0 1 0 Test not for application 0 1 0 1 1 Test not for application 0 1 1 0 0 Test not for application 0 1 1 0 1 Test not for application 0 1 1 1 0 Test not for application 0 1 1 1 1 Test not for application 1 0 0 0 0 Test not for application 1 0 0 0 1 Test not for application 1 0 0 1 0 Test not for application 1 0 0 1 1 Test not for application 1 0 1 0 0 Test not for application 1 0 1 0 1 Test not for application 1 0 1 1 0 Test not for application 1 0 1 1 1 Test not for application 1 1 0 0 0 Test not for application 1 1 0 0 1 Test not for application 1 1 0 1 0 Test not for application 1 1 0 1 1 Test not for application 1 1 1 0 0 Test not for application 1 1 1 0 1 Test not for application 1 1 1 1 0 Test not for application 1 1 1 1 1 EQ set

(2)

linear audio playback equalization using

non-standard settings

Notes

1. The bits TST4 to TST0 are used for testing and measurement purposes.

2. Test number 31 (TST4 to TST0 = 11111) is a special setting which can be used to change the internal linear audio playback equalization to non-standard settings as shown in Table 38.

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Table 38 Linear audio playback equalization non-standard settings

SETTING MODE TEST NUMBER 31

Standard play (LP = 0) 3180 and 120 µs not selected

2544 and 96 µs selected

Long play (LP = 1) 3180 and 170 µs not selected

2731 and 146 µs selected

6.13 Read byte

Table 39 Bits of read byte

BIT DESCRIPTION

CALR Calibration ready; see Table 40 PAFM Playback Audio FM Mute; see Table 41 POR Power-On reset; see Table 42

Table 40 Bit CALR; note 1

CALR MODE DESCRIPTION

0 not calibrated IC has not been auto-calibrated [por]. 1 calibrated IC has been calibrated successfully.

TDA9614H

Note

1. If CALR = 0, bandpass filters and oscillators have not been calibrated successfully. When an automatic calibration is started by bit CALS, the end of the calibration cycle can be checked via this bit. If for some reason a successful calibration can not be made within the available adjustment range, e.g. if no HID signal is available, CALR will remain logic 0. After calibration the adjustment will be held for as long as the digital supply voltage (V

Table 41 Bit PAFM; note 1

PAFM MODE DESCRIPTION

0 AFM available Audio FM signal is detected at FM input. 1 no AFM carrier No audio FM signal detected; hi-ﬁ processing is muted.

Note

1. When the hi-fi processing is in playback mode but no Audio FM input signal is found, the IC generates an internal mute signal which mutes the noise signal coming from the demodulators. The status of this mute signal can be read via bit PAFM. This signal however is only valid with the hi-fi circuit in playback (RAF = 0 and IPAF = 0).

Table 42 Bit POR; note 1

POR MODE DESCRIPTION

0 − − 1 POR generated POR pulse is generated since last read.

Note

1. When the IC is switched on, or a power dip occurs on the digital supply (V generated which resets the IC's I2C-bus registers and the auto-calibration circuit. If such a situation has occurred after the last time the read byte has been read, bit POR = 1. After reading the read byte POR is reset to logic 0.

) line, a Power-on Reset signal is

DDD

) is available.

DDD

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and linear audio

7 LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

DDA1

DDA2

DDD

stg

amb

Notes

1. Machine Model (MM).

2. Human Body Model (HBM).

analog supply voltage 1 0 13.2 V analog supply voltage 2 0 5.5 V digital supply voltage 0 5.5 V voltage on pins:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 28, 41, 44, 51, 52,

0 7.7 V

63 and 64 56, 60 and 62 0 V 12 and 32 0 V

DDA2 DDD

V storage temperature −65 +150 °C operating ambient temperature 0 +70 °C electrostatic handling MM; note 1 −150 +150 V

HBM; note 2 −1500 +1500 V

8 THERMAL CHARACTERISTICS

SYMBOL PARAMETER VALUE UNIT

th j-a

thermal resistance from junction to ambient in free air 55 K/W

9 DC CHARACTERISTICS

DDA1

= 12 V; V

DDA2

= 5 V; V

= 5 V; NTSC = 0; LP = 0; CALR = 1; T

DDD

amb

= 25 °C;

all volume control levels set to 0 dB; measured in test circuit (see Fig.13); unless otherwise speciﬁed.

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Supply voltages

V V V

DDA1 DDA2 DDD

analog supply voltage 1; pin 50 10.5 12 13.2 V analog supply voltage 2; pin 58 4.75 5 5.5 V digital supply voltage; pin 13 4.75 5 5.5 V

Supply currents

DDA1

analog supply current 1; pin 50 operating − 47 60 mA

standby − 28 35 mA

(1)

DDA2

DDD

analog supply current 2; pin 58 record

playback standby; LT

digital supply current; pin 13 operating − 1 3 mA

; LT

(3)

(2)

− 7 9 mA

− 18 23 mA

− 3 5 mA

standby − 1 3 mA

1995 Mar 21 29

Page 30

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Input voltages

51,64

52,63

Output voltages

DC input voltage; pins 1, 2, 3, 4, 5,

− 3.8 − V 6, 7, 8, 9, 10, 11, 28, 31, 34, 35 and 36

DC input voltage internally

− 1.9 − V generated; pin 57

DC input voltage internally

− 0 − V generated; pin 30

DC input voltage internally

playback

(3)

− 3.8 − V generated; pins 51 and 64

(1)

DC input voltage internally

record

; LT

(2)

− 3.8 − V generated; pins 52 and 63

DC output voltage:

pins 19, 20, 21, 22 and 33 − 6 − V pins 25 and 26 − 5.5 − V pins 18, 29, 42, 53 and 59 − 3.8 − V pin 56 record pin 56 playback

(1)

(3)

; LT

− 1.2 − V

(2)

− 1.2 − V

pin 55 − 0.6 − V

(1)

pins 51 and 64 record pins 52 and 63 playback

; LT

(3)

(2)

− 4.3 − V

− 3.3 − V

Head identiﬁcation pulse input (HID; pin 61)

HIGH level input voltage 2.75 − 5.50 V LOW level input voltage 0 − 2.25 V

Normal record pin (LINREC; pin 32)

HIGH level output voltage IL= −500 µA V LOW level output voltage IL= 500 µA − − 0.5 V

I/O RAF (pin 12)

SED AS OUTPUT

HIGH level output voltage RAF = 1;

LOW level output voltage RAF = 0;

HIGH level output current (drive capability)

LOW level output current (drive capability)

− 0.5 − − V

DDD

− 0.25 − V

DDD

IL= −35 µA

0 − 0.4 V

IL= 185 µA RAF = 1 −35 − − µA

RAF = 0 185 − − µA

1995 Mar 21 30

Page 31

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

USED AS INPUT (OUTPUT OVERRULED) V

Notes

1. Record: record audio FM and record linear audio.

2. Loop-through: loop-through audio FM and loop-through R linear audio.

3. Playback: playback audio FM and playback linear audio.

10 AC CHARACTERISTICS

10.1 Record audio FM mode

Audio input signal −8 dBV from TUNL and TUNR (pins 2 and 3); V LP = 0; CALR = 1; f = 1 kHz (audio test frequency); T circuit (see Fig.13); unless otherwise speciﬁed.

HIGH level input voltage 3.5 − V

DDD

LOW level input voltage 0 − 1.5 V HIGH level input current at V LOW level input current at V

= 25 °C; all volume control levels set to 0 dB; measured in test

amb

IH IL

DDA1

− − 345 µA

− − −65 µA

= 12 V; V

DDA2

= 5 V; V

= 5 V; NTSC = 0;

DDD

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Audio inputs (SAP, TUNL, TUNR, CINL, CINR, EXT1L, EXT1R, EXT2L, EXT2R, EXT3L and EXT3R; pins 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11)

iAF

input resistance 100 130 − kΩ audio input voltage − − 8 dBV

Line and decoder outputs (LINEL, LINER, LINE2L and LINE2R; pins 21, 22, 19 and 20)

o(max)

maximum output voltage −9 −8 −7 dBV

THD = 1%; RL= 5 kΩ;

10 11 − dBV CL= 2.2 nF; TUNL ≤ −3 dBV; TUNR ≤ −3 dBV; note 1

output resistance − 200 275 Ω THD total harmonic distortion − 0.01 0.1 % V

noise level fi= 300 Hz to 20 kHz;

− −91 −87 dBV TUNL and TUNR AC grounded

cb mute ct

res

channel balance −1 0 +1 dB volume mute level − −100 −80 dBV crosstalk between channels one channel driven − −83 −78 dBV frequency response with

respect to 1 kHz; low-pass

fi= 20 kHz −0.5 −0.1 +0.5 dB fi= 60 kHz − −12 −5 dB

ﬁlter transfer

ct(max)

maximum audio input crosstalk −8 dBV at a not selected

− −90 − dBV stereo audio input

1995 Mar 21 31

Page 32

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

VU meter drive (DCOUTL and DCOUTR; pins 23 and 24); square root of output voltage (see Fig.7)

RF converter drive output; mono RFCOUT; pin 18 (see Fig.8) V

THD total harmonic distortion − 0.01 − % V

THD total harmonic distortion at

output voltage 1.69 1.8 1.91 V output resistance − 100 − Ω output voltage at maximum

record level output voltage for zero-level

TUNL = −3 dBV; TUNR = −3 dBV; note 1

− 0.5− V

DDD

− − 300 mV

input channel balance −0.11 − +0.11 dB

output voltage −9 −8 −7 dBV output resistance − 100 − Ω

output voltage at maximum record level

maximum record level

TUNL = −3 dBV; TUNR = −3 dBV; note 1

−5 −3 −1 dBV

− 0.3 − %

Headphone outputs (HPOUTL and HPOUTR; pins 25 and 26); headphone volume set to 0 dB

output voltage −9 −8 −7 dBV

output resistance − 1 − Ω THD total harmonic distortion − 0.01 0.1 % V

o(max)

maximum output voltage THD = 1%;

9.0 9.5 − dBV TUNL ≤ −3 dBV; TUNR ≤ −3 dBV; RL= 250 Ω; note 1

noise level fi= 300 Hz to 20 kHz;

− −90 −80 dBV tuner AC grounded

ct mute cb

crosstalk between channels one channel driven − −83 −70 dBV headphone volume mute level − −90 −70 dBV channel balance −1 − +1 dB

1995 Mar 21 32

Page 33

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Audio outputs (AFNL and AFNR; pins 64 and 51); audio output from noise reduction

oAF

THD total harmonic distortion − 0.12 0.3 % V

oAF

THD total harmonic distortion at

L linearity V

att

rec

mute

audio output voltage −12.5 −11.5 −10.5 dBV

audio output voltage at maximum record level

maximum record level noise level fi= 300 Hz to 20 kHz;

TUNL = −3 dBV; TUNR = −3 dBV; note 1

−3.5 −2 −0.5 dBV

− 0.2 3 %

− −54 −52 dBV

tuner AC grounded

channel balance −1 − +1 dB

= −8 to −68 dBV 28.5 30 31.5 dB

channel crosstalk one channel driven − −58 −50 dBV attack time according VHS − 5 − ms recovery time according VHS − 70 − ms mute level MUTE = 1 − −52 − dBV frequency response with

respect to 1 kHz; output level

fi= 300 Hz −0.9 −0.2 +0.5 dB fi= 10 kHz 2.9 3.9 4.9 dB

FM modulator (audio input from AFML and AFMR; pins 63 and 52)

THD total harmonic distortion ∆f = 50 kHz − 0.1 0.2 % ∆f FM frequency deviation V

= −11.5 dBV;

iAF

45 50 55 kHz

NTSC = 0 V

= −11.5 dBV;

iAF

45 50 55 kHz

NTSC = 1 audio input signal from NR

44.5 50 56.1 kHz outputs AFNL and AFNR; NTSC = 0

audio input signal from NR

44.5 50 56.1 kHz outputs AFNL and AFNR; NTSC = 1

∆f

max

maximum FM frequency

140 150 160 kHz

deviation

FM centre frequency left f = 1.4 MHz; NTSC = 0;

1395 1400 1405 kHz

calibrated in PAL mode f = 1.3 MHz; NTSC = 1;

1295 1300 1305 kHz

calibrated in NTSC mode NTSC = 1; calibrated in

− 1300 − kHz PAL mode

1995 Mar 21 33

Page 34

Philips Semiconductors Preliminary speciﬁcation

---

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

TC temperature coefﬁcient − ±50 − 10−6/K

HF output stage (FMOUT; pin 56)

oR(p-p)

oL(p-p)

------V

3rd

Note

1. Record volume control for left and right channel set to maximum (+14 dB). Headphone volume control at 0 dB.

FM centre frequency right f = 1.8 MHz; NTSC = 0;

1795 1800 1805 kHz

calibrated in PAL mode f = 1.7 MHz; NTSC = 1;

1695 1700 1705 kHz

calibrated in NTSC mode NTSC = 1; calibrated in

− 1700 − kHz PAL mode

right output voltage (peak-to-peak value)

foR= 1.8 MHz; 1st harmonic

foR= 1.7 MHz;

455 510 572 mV

1st harmonic

left output voltage (peak-to-peak value)

foL= 1.4 MHz; 1st harmonic

foL= 1.3 MHz;

152 170 190 mV

1st harmonic

ratio of output voltages 2.7 3 3.3

3rd harmonic suppression NTSC = 0 20 30 − dB

NTSC = 1 18 28 − dB

output resistance − 100 130 Ω

10.2 Record linear audio mode

Audio input signal −8 dBV from SAP, TUNL and TUNR (pins 1, 2 and 3); NormSel is input; OutSel is normal.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Linear audio playback input; PBIN (pin 34)

input impedance IL= ±1 mA − 7 15 Ω

Linear audio EQSW input (pin 30)

input impedance LP = 0 100 150 − kΩ

LP = 1 − 15 30 Ω

Line output (pins 21 and 22)

output voltage AGCN = 0; note 1 −8 −6 −4 dBV

AGCN = 1;

−10 −8 −6 dBv NormSel = volume; note 1

crosstalk (linear to stereo) OutSel = stereo;

− −88 −80 dBV NormSel = SAP; TUNL and TUNR AC grounded

1995 Mar 21 34

Page 35

Philips Semiconductors Preliminary speciﬁcation

( )

---------------------

3.98×=

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Linear audio record output RECOUT; pin 33 (see Fig.11)

THD total harmonic distortion AGCN = 1;

mute

Linear audio RECEQ (pin 31)

Notes

1. Using AGC on (AGCN = 0) and NormSel set to volume mode. The AGC gain is 1 dB higher for audio signals below the AGC clip level (specified value of AGC clip level does not change).

Using AGC off (AGCN = 1) and NormSel not set to volume mode, the output signal is 1 dB lower (1 dB below the specified value).

output voltage AGCN = 0; note 1 −2 0 +2 dBV

AGCN = 1;

−4 −2 0 dBv

NormSel = volume; note 1

− 0.02 0.5 %

NormSel = volume

noise level AGCN = 1; TUNL and

− −80 −70 dBV

TUNR AC grounded output impedance − 100 200 Ω mute level loop-through R;

− −85 − dBV

NOM = mute

transfer impedance note 2 900 1200 1500 Ω

R Z+

2. The transfer A of the REC equalizer from LININ to RECOUT is:

where Z is the (complex) impedance at pin RECEQ to ground and R is the specified resistance of 1200 Ω.

10.3 Playback Audio FM mode

Audio output signal from the FM (de)modulator at AFML and AFMR (pins 63 and 52).

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Bandpass ﬁlters (ﬁlter curves measured using test numbers 3 and 4 [HF AGC off])

o(rms)

output voltage level at FMOUT (RMS value)

iHF(rms)

= 30 mV;

1.3 MHz BPF

iHF(rms)

= 30 mV;

105 150 215 mV

1.4 MHz BPF

iHF(rms)

= 30 mV;

105 150 215 mV

1.7 MHz BPF

iHF(rms)

= 30 mV;

105 150 215 mV

1.8 MHz BPF

1.4 MHz BPF 1.0 MHz/1.4 MHz − −30 −20 dB

1.25 MHz/1.4 MHz −6 −3 − dB

1.55 MHz/1.4 MHz −7 −3 − dB

1.65 MHz/1.4 MHz − −17 −12 dB

1.55 MHz/1.65 MHz 10 15 − dB

1.8 MHz/1.4 MHz − − −30 dB

1995 Mar 21 35

Page 36

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

1.8 MHz BPF 1.4 MHz/1.8 MHz − − −30 dB

1.55 MHz/1.8 MHz − −17 −10 dB

1.65 MHz/1.8 MHz −7 −3 − dB

1.95 MHz/1.8 MHz −3 0 − dB

2.2 MHz/1.8 MHz −25 −15 dB

1.3 MHz BPF 1.45 MHz/1.3 MHz −7 −3 − dB

1.55 MHz/1.3 MHz − −17 −12 dB

1.45 MHz/1.55 MHz 10 15 − dB

1.7 MHz BPF 1.45 MHz/1.7 MHz − −17 −10 dB

1.55 MHz/1.7 MHz −7 −3 − dB

1.55 MHz/1.45 MHz 10 15 − dB

shift

HF AGC

i max(p-p)

oL(rms)

oR(rms)

B −3 dB bandwidth V

frequency shift of BPF curve with temperature

maximum input signal level (peak-to-peak value)

left BPF output voltage level (RMS value)

right BPF output voltage level (RMS value)

= 0 to 70 °C − 10 − kHz

amb

1.4 and 1.8 MHz carrier

− − 1.25 V

added

fi= 1.4 MHz at FMIN;

iHF(rms)

= 4 mV

fi= 1.4 MHz at FMIN;

iHF(rms)

= 25 mV

fi= 1.4 MHz at FMIN;

iHF(rms)

= 125 mV

fi= 1.8 MHz at FMIN;

iHF(rms)

= 4 mV

fi= 1.8 MHz at FMIN;

iHF(rms)

= 25 mV

fi= 1.8 MHz at FMIN;

iHF(rms) iHF(rms)

= 125 mV = 75 mV;

13 19 28 mV

84 120 170 mV

13 19 28 mV

84 120 170 mV

− 10 − kHz

1.4 MHz carrier

PLL FM demodulator and limiter

AM rejection V

iHF(rms)

= 2 to 200 mV;

− −70 − dBV

m = 30%

i(rms)

sensitivity; PLL locked (RMS value)

∆f = 150 kHz;

S/N = 35 dB (audio)

− 0.6 1.25 mV

THD total harmonic distortion ∆f = 50 kHz − 0.03 0.3 %

∆f = 150 kHz − 0.2 1.5 %

S/N signal-to-noise ratio V V

oAF

step

AF output voltage ∆f = 50 kHz −12.5 −11.5 −10.5 dBV step response note 1 − − −48 dBV crosstalk between channels L to R; R to L − −90 − dBV

= 30 mV; ∆f = 50 kHz 54 57 − dB

iHF

1995 Mar 21 36

Page 37

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Sample-and-hold (see Fig.9)

Drop-Out Cancellation (DOC)

d(off)

Mute timing (CMUTE; pin 62)

i(rms)

d(off)

d(on)

Level detector output ENVOUT; pin 60 (see Fig.10) V

Line outputs (LINEL and LINER; pins 27 and 28); audio inputs at AFNL and AFNR (pins 64 and 51): −11.5 dBV

THD total harmonic distortion − 0.05 0.2 % L linearity V

res

hold time pulse width 5 6 7 µs audio distortion note 2 − − −75 dB delay from HID pulse to hold

− 0.4 − µs

pulse

DOC activation level w.r.t.

−7 −4 −2 dB

mute activation level switch-off delay time no signal to signal 5 9 14 µs

mute activation level

2.2 4.2 7.1 mV (RMS value) referenced to FMIN

switch-off delay time signal to no signal − 15 − ms switch-on delay time no signal to signal − 400 − ms

output voltage level fi(FMIN) = 1.4 MHz;

iHF(rms)

= 2 mV

fi(FMIN) = 1.4 MHz; V

iHF(rms)

= 20 mV

fi(FMIN) = 1.4 MHz; V

iHF(rms)

= 200 mV

0.6 0.9 1.2 V

2.5 2.9 3.3 V

4.1 4.5 4.8 V

output resistance − 33 − kΩ

output voltage −10 −8 −6 dBV

input signal from modem

−10 −8 −6 dBV

to AFML and AFMR

noise level fi= 300 Hz to 20 kHz − −98 −90 dBV

= −11.5 to −41.5 dBV 58 60 62 dB

iAF

channel balance −2 0 +2 dB frequency response with

respect to 1 kHz; output level

fi= 300 Hz −1 +0.4 +1.8 dB fi= 10 kHz −9.7 −7.7 −5.7 dB

Notes

1. HID pulse frequency set to 1 kHz. Unmodulated carrier at FMIN input with 135° phase step.

2. The audio distortion is measured with the HID pulse frequency set to 1 kHz (fi= 500 Hz). FM signal: fm= 10 kHz; ∆f = 50 kHz. The distortion is measured with a 3 kHz 4th-order low-pass filter. The measured value at 1 kHz HID-pulse frequency is corrected with 26 dB in order to calculate the equivalent distortion at 50 Hz HID-pulse frequency.

1995 Mar 21 37

Page 38

Philips Semiconductors Preliminary speciﬁcation

oAF

(dBV)

V (dBV)

iAF

Fig.5 Compression curve of noise reduction at

1 kHz; record mode. The audio output voltage at AFNL and AFNR (pins 64 and 51) as a function of the audio input voltage at TUNL and TUNR (pins 2 and 3).

Fig.6 Expansion curve of noise reduction at

1 kHz; playback mode. The audio output voltage at LINEL and LINER (pins 21 and 22) as a function of the audio input voltage at AFNL and AFNR (pins 64 and 51).

68 48 28 12

1.5

11.5

31.5

41.5

21.5

MKA363

iAF

(dBV)

V (dBV)

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

10.4 Playback linear audio

Audio input signal −68 dBV from PBIN (pin 34).

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Linear audio playback input PBIN (pin 34)

Linear audio RESSW input (pin 35)

Z impedance between RESSW

Line outputs LINEL and LINER (pins 21 and 22)

res

THD total harmonic distortion − 0.05 0.5 % V

o(max)

input impedance 60 100 − kΩ output voltage at LINOUT −14 −12 −10 dBV

LP = 0 − 50 100 Ω

and PBIN

LP = 1 100 150 − kΩ

output voltage LP = 0 −8 −6 −4 dBV

LP = 1 −6.7 −4.7 −2.7 dBV

frequency response with respect to 1 kHz; output level

fi= 315 Hz; LP = 0 7.2 8.2 9.2 dB fi= 10 kHz; LP = 0 −5.4 −4.4 −3.4 dB fi= 315 Hz; LP = 1 5.9 6.9 7.9 dB fi= 10 kHz; LP = 1 −3.7 −2.7 −1.7 dB

maximum output voltage THD = 1% − 10 − dBV noise level fi= 300 Hz to 20 kHz − −58 −55 dBV

referenced to PBIN − −120 − dBV

1.5

11.5

1995 Mar 21 38

21.5

31.5

41.5 68 48 28 12

MKA362

Page 39

Philips Semiconductors Preliminary speciﬁcation

Fig.7 VU meter output voltage at

DCOUTL and DCOUTR (pins 23 and 24) as a function of audio signal level.

MKA364

58 38 18 222

V (dBV)

(V)

DCOUTL/R = 2.86 x audio level

handbook, halfpage

MGC418

58 38 18 222

V (dBV)

(dBV)

Fig.8 RF converter output voltage at RFCOUT

(pin 18) as a function of line output signal level at LINEL and LINER (pins 21 and 22).

Fig.9 Sample-and-hold timing waveforms.

MKA366 - 1

time

track

hold

sample-and-

hold

CONTROL

HID

INPUT

Fig.10 Level detector output voltage at ENVOUT

(pin 60) as a function of the 1.4 MHz carrier input voltage level (RMS value) at FMIN (pin 57).

handbook, halfpage

MBE282

10110

V (mV)

iHF

(V)

Audio processor for VHS hi-ﬁ and linear audio

TDA9614H

1995 Mar 21 39

Page 40

Philips Semiconductors Preliminary speciﬁcation

Fig.11 RECOUT/LINE output as a function of audio signal level (hi-fi inputs).

handbook, full pagewidth

20 16 12 8 4 0 4

MBE283

2 0

RECOUT

(dBV)

LINE

(dBV)

V (dBV)

(1)

(2)

(1) Normsel = volume; AGCN = 1. (2) Normsel ≠ volume; AGCN = 0.

Fig.12 Timing of LINREC output versus PBIN

impedance.

handbook, halfpage

MBE280

LINREC

output

time

PBIN

impedance

time

HIGH

LOW

Audio processor for VHS hi-ﬁ and linear audio

TDA9614H

1995 Mar 21 40

Page 41

Philips Semiconductors Preliminary speciﬁcation

78 kΩ

52 kΩ

3.8 V

13 kΩ65 kΩ

52 kΩ

3.8 V

13 kΩ65 kΩ

52 kΩ

3.8 V

78 kΩ

52 kΩ

3.8 V

78 kΩ

52 kΩ

3.8 V

13 kΩ65 kΩ

52 kΩ

3.8 V

13 kΩ65 kΩ

52 kΩ

3.8 V

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

11 INTERNAL CIRCUITRY

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

SAP 1 Second Audio Program (SAP)

input.

MLD008

TUNL 2 Left channel tuner input.

MLD009

TUNR 3 Right channel tuner input.

MLD010

CINL 4 Left channel cinch input.

MLD011

CINR 5 Right channel cinch input.

MLD012

EXT1L 6 Left channel external 1 input.

MLD013

EXT1R 7 Right channel external 1 input.

MLD014

1995 Mar 21 41

Page 42

Philips Semiconductors Preliminary speciﬁcation

13 kΩ65 kΩ

52 kΩ

3.8 V

13 kΩ65 kΩ

52 kΩ

3.8 V

13 kΩ65 kΩ

52 kΩ

3.8 V

13 kΩ65 kΩ

52 kΩ

3.8 V

275

Ω

100 µA

RAF

I C-RAF

1 3

2 1

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

EXT2L 8 Left channel external 2 input.

MLD015

EXT2R 9 Right channel external 2 input.

MLD016

EXT3L 10 Left channel external 3 input.

MLD017

EXT3R 11 Right channel external 3 input.

MLD018

RAF 12 Record/playback switch drive

output for head ampliﬁer control or input for overruling the I2C-bit RAF.

MLD019 

DDD

13 Digital supply voltage for I2C-bus

(+5 V).

1995 Mar 21 42

Page 43

Philips Semiconductors Preliminary speciﬁcation

275 Ω

MLD020

275 Ω

MLD021

100 Ω

250 µA

MLD023

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

SDA 14 Data input/output for I2C-bus.

SCL 15 Clock input for I2C-bus.

SSD

16 Digital ground for I2C-bus.

RFCAGC 17 RF converter AGC-time constant.

MLD022

RFCOUT 18 RF converter drive output.

1995 Mar 21 43

Page 44

Philips Semiconductors Preliminary speciﬁcation

5.8 kΩ

200 Ω

5.8 kΩ

200 Ω

5.8 kΩ

200 Ω

5.8 kΩ

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

LINE2L 19 Line 2 left output (e.g. decoder

output).

MLD024

LINE2R 20 Line 2 right output (e.g. decoder

output).

MLD025

LINEL 21 Line output left.

MLD026

1995 Mar 21 44

Page 45

Philips Semiconductors Preliminary speciﬁcation

5.8 kΩ

200 Ω

5.8 kΩ

100 Ω

2.7 kΩ 8 kΩ

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

LINER 22 Line output right.

MLD027

DCOUTL 23 VU meter drive output left.

MLD028

DCOUTR 24 VU meter drive output right.

MLD029

HPOUTL 25 Headphone drive output left.

MLD030

1995 Mar 21 45

Page 46

Philips Semiconductors Preliminary speciﬁcation

2.7 kΩ 8 kΩ

100 Ω

90 kΩ

3.8 V

AGC

playback equalizer

250 µA

4330

150 kΩ

MLD035

SSA1

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

HPOUTR 26 Headphone drive output right.

MLD031

LINAGC 27 Linear audio AGC-time constant.

MLD032

LININ 28 Audio input for linear audio to REC

equalizer and output select.

MLD033

LINOUT 29 Audio output from AGC or PB

equalizer.

MLD034

EQSW 30 Long Play (LP) equalization switch;

15 Ω on resistance and 150 kΩ input impedance.

1995 Mar 21 46

Page 47

Philips Semiconductors Preliminary speciﬁcation

1.75 kΩ 3.8 kΩ

275 Ω

MLD037

1.6 kΩ 4.8 kΩ

100 Ω

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

RECEQ 31 Linear audio recording ampliﬁer

negative feedback input for connecting a record equalization network.

MLD036

LINREC 32 Digital output controlled by I2C-bit

RN; can be used to drive an external (high voltage) head switch and possibly the bias oscillator.

RECOUT 33 Linear audio recording ampliﬁer

output.

MLD038

1995 Mar 21 47

Page 48

Philips Semiconductors Preliminary speciﬁcation

470 Ω

100 kΩ

3.8 V

150 kΩ

MLD039

46.8 kΩ4.3 kΩ

3.8 V

100 kΩ

250 µA

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

PBIN 34 Linear audio playback ampliﬁer

input; during playback the impedance is 100 kΩ; during record the impedance is 7 Ω.

RESSW 35 Long Play equalization switch 50 Ω

on and 150 kΩ off impedance to PBIN.

PBDC 36 Linear audio playback ampliﬁer

DC decoupling.

DCFBL 37 DC feedback left. DCREFL 38 DC reference left. EMPHL 39 Total emphasis left (240 to 20 µs).

MLD040

1995 Mar 21 48

Page 49

Philips Semiconductors Preliminary speciﬁcation

MLD041

384 Ω

16.4 µA

20 kΩ

3.8 V

384 Ω

16.4 µA

MLD045

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

RECTL 40 Rectiﬁer DC decoupling left.

DETL 41 Attack/recovery timing left.

MLD042

ref

42 Noise ﬁltering of 3.8 V reference

voltage (external capacitor required for ﬁltering).

MLD043

SSA1

43 Analog ground 1 for LF circuits.

DETR 44 Attack/recovery timing right.

MLD044

RECTR 45 Rectiﬁer DC decoupling right.

1995 Mar 21 49

Page 50

Philips Semiconductors Preliminary speciﬁcation

46.8 kΩ4.3 kΩ

3.8 V

100 kΩ

250 µA

3.8 V

from  noise reduction

to  noise reduction

250 µA

playback

22.3 kΩ

2.7 kΩ

record

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

EMPHR 46 Total emphasis right (240to 20 µs). DCREFR 47 DC reference right. DCFBR 48 DC feedback right.

MLD046

RFIX 49 Fixed bias current generation circuit

by using an external 180 kΩ resistor to ground.

MLD047

DDA1

50 Analog supply voltage 1 for

LF circuits (+12 V).

AFNR 51 Audio output from noise reduction

of right channel (record and loop-through) or audio input for noise reduction of right channel (playback).

MLD048

1995 Mar 21 50

Page 51

Philips Semiconductors Preliminary speciﬁcation

audio clipper

3.8 V

25 kΩ

MLD049

250 µA

playback

record

sample- and- hold

CCO-current

1.3 V

MLD051

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

AFMR 52 Audio input for audio clipper of right

channel (record and loop-through) or audio output from sample-and-hold (playback).

RCCOR 53 Voltage-to-current transfer for right

channel oscillator by means of an external resistor to ground.

MLD050

SSA2

54 Analog ground 2 for HF circuits.

RBPF 55 Bias current generation for the

internal band-pass ﬁlters by means of an external resistor to ground.

1995 Mar 21 51

Page 52

Philips Semiconductors Preliminary speciﬁcation

50 Ω

900 µA

4 kΩ

15 kΩ

1.9 V

CCO-current

60

33 kΩ

2.5 V

3 kΩ

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

FMOUT 56 FM output.

MLD052

FMIN 57 FM input.

MLD053

DDA2

RCCOL 59 Voltage-to-current transfer for left

58 Analog supply voltage 2 for

HF circuits (+5 V).

channel oscillator by means of an external resistor to ground.

MLD054

ENVOUT 60 Level detector output (external

capacitor required for ﬁltering).

MLD055

HID 61 Head Identiﬁcation Pulse (HID)

input for sample-and-hold circuits.

MLD056

1995 Mar 21 52

Page 53

Philips Semiconductors Preliminary speciﬁcation

275

Ω

ENVOUT

MLD057

18 µA

PBMUTE

audio clipper

3.8 V

25 kΩ

MLD058

250 µA

playback

record

sample- and- hold

3.8 V

from  noise reduction

to  noise reduction

250 µA

playback

22.3 kΩ

2.7 kΩ

record

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

CMUTE 62 Mute timing (external capacitor

required for playback mute).

AFML 63 Audio input for audio clipper of left

channel (record and loop-through) or audio output from sample-and-hold circuit of left channel (playback).

AFNL 64 Audio output from noise reduction

of left channel (record and loop-through) or audio input for noise reduction of left channel

1995 Mar 21 53

MLD059

(playback).

Page 54

Philips Semiconductors Preliminary speciﬁcation

TDA9614H

MBE279

RECOUT

PBIN

RESSW

PBDC

DCFBL

DCREFL

EMPHL

RECTL

DETL

DETR

RECTR

EMPHR

DCREFR

DCFBR

RFIX

AFNR

ref

SSA1

DDA1

SAP

TUNL

TUNR

CINL

CINR

EXT1L

EXT1R

EXT2L

EXT2R

EXT3L

EXT3R

RAF

SDA

SCL

RFCAGC

RFOUT

LINE2L

LINE2R

LINEL

LINER

DCOUTL

DCOUTR

HPOUTL

HPOUTR

LINAGC

LININ

LINOUT

EQSW

RECEQ

LINREC

DDD

SSD

AFNL

AFML

CMUTE

HID

ENVOUT

RCCOL

FMIN

FMOUT

RBPF

RCCOR

AFMR

DDA2

SSA2

33343536373839404142434445464748495051

220 nF

(11x)

100

µF

22

10 µF 10 µF

100 kΩ

5 V

100

µF

10 µF

100

µF

2.2 µF

10 µF

22

200 pF

22 nF

10 nF

100

22

12 V

5 V

16 17 18 191514139 10 11 128762 3 4 51

3.3 MΩ

10

µF

100

kΩ

10

µF

10 µF

100

kΩ

100 µF

100

kΩ

100 Ω

100 µF

100

kΩ

100 Ω

3.3 MΩ

220

head-

phone

output

10 µF

100

kΩ

10 µF

100

kΩ

LINE2

output

10 µF

100

kΩ

10 µF

100

kΩ

LINE

output

DC

output

100

kΩ

220 nF

10 µF

4.7

22 µF10 µF2.2 µF10 µF22 µF

4.7

10 µF

180

kΩ

18 kΩ

22 kΩ

10 kΩ

8.2 kΩ

100 kΩ

Ω

100

kΩ

100

kΩ

Fig.13 Test circuit.

Audio processor for VHS hi-ﬁ and linear audio

12 TEST AND APPLICATION INFORMATION

TDA9614H

1995 Mar 21 54

Page 55

Philips Semiconductors Preliminary speciﬁcation

handbook, full pagewidth

MBE277

SUPPLY AND V

ref

HF AGC

BPF

RAF

LPF

LIMITER

LPF

LEVEL

DETECT

LIMITER

LEVEL

DETECT

PLL

1.3 MHz

1.4 MHz

CCO

PLL

1.7 MHz

1.8 MHz

CCO

AUDIO

CLIPPER

SAMPLE-

AND-

HOLD

SAMPLE-

AND-

HOLD

AUDIO

CLIPPER

RN IPN RN

PBSet

PB eq

RN IPN

AGCN

Normal Sel

Input Sel

NOISE REDUCTION

volume R

AUDIO

LPF

AFOMute

volume L

NOMute

Out Sel

RFCMute

volume HP

Line Sel

Dec Sel

HP Sel

6107113

8109

AFOMute

NOISE REDUCTION

AUDIO

LPF

DC Sel

RAF IPAF

DOC

MUTE

I C

50 43 58 54 42 49 61 53 59 60 62 12 13 14 15 16 63 64 52 51 37 38 39 40 41

48 47 46 45 447 8 9 10 112 3 4 5 61

28 29 2736353432333130

SCLSDA

RAF

HID

HF envelope

TDA9614H

µF

100

kΩ

µF

100

kΩ

10 µF

100

kΩ

100

kΩ

10 µF

100

kΩ

3.3

MΩ

RFC

Line

10 µF

100

kΩ

100

kΩ

100

µF

kΩ

100 Ω

100

µF

kΩ

100 Ω

Line 2

(decoder)

head-

phone

10 µF

µF

4.7 nF

220 nF

10 µF

220 nF

47 µF

µF

1.5

22 nF

10 nF

10 µF

R L

Ext3

R L

Ext2

(decoder)

R L

Ext1

R L

cinch

R LSAP

tuner

220 nF

(11x)

3.3 MΩ

BIAS

680 pF

100

kΩ

22 nF

8.2 kΩ

470 Ω

kΩ

1 kΩ

FM in

FM out

amplifier

100 µF

100 µH

12 V

100 µF

100 µH

5 V

2.2

µF

2.2

µF

180

kΩ

10 nF

10 µF 10 µF

µF

4.7

220 nF

(1)

DCOUTL

DCOUTR

Fig.14 Application diagram.

(1) LL = Low Leakage.

Audio processor for VHS hi-ﬁ and linear audio

TDA9614H

1995 Mar 21 55

Page 56

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ and linear audio

12.1 RAF I/O (pin 12)

The status of the I2C RAF bit is output (RAF = HIGH; record). This output can be used to switch the audio FM head amplifier to playback and record. If accurate fast switching of the TDA9614H is needed, this pin can also be used as input. Thereby overruling the I2C RAF bit. To make this possible the RAF output is current limited.

When using the RAF pin as output, no more than 35 µA (LOW) and 185 µA (HIGH) current may be drawn from this pin to assure that the mode of the TDA9614H is not changed.

When using the RAF pin as input, the voltage source used must be capable of delivering at least 345 µA (forced HIGH; >3.5 V) or sinking at least 65 µA (forced LOW; <1.5 V).

TDA9614H

12.2 RCCOL, RCCOR, RBPF and RFIX (pins 59, 53, 55 and 49)

The external resistors to ground at pins RCCOL, RCCOR, RBPF and RFIX must have a tolerance of 5%. This is necessary to guarantee correct functioning of the IC. The temperature coefficient of the external resistors at RCCOL, RCCOR and RBPF have a direct influence on the related frequencies of the on-chip oscillators and bandpass filters.

1995 Mar 21 56

Page 57

Philips Semiconductors Preliminary speciﬁcation

UNIT A1A2A3b

c E

(1)

e HEL LpQ Zywv θ

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

0.25

0.05

2.90

2.65

0.25

0.50

0.35

0.25

0.14

14.1

13.9

18.2

17.6

1.4

1.2

1.2

0.8

7 0

o o

0.2 0.10.21.95

DIMENSIONS (mm are the original dimensions)

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

1.0

0.6

SOT319-2

92-11-17 95-02-04

(1) (1)(1)

20.1

19.9

24.2

23.6

1.2

0.8

detail X

(A )

v M

51 33

pin 1 index

v M

w M

0 5 10 mm

scale

handbook, full pagewidth

QFP64: plastic quad flat package; 64 leads (lead length 1.95 mm); body 14 x 20 x 2.8 mm

SOT319-2

A

max.

3.20

Audio processor for VHS hi-ﬁ and linear audio

13 PACKAGE OUTLINE

TDA9614H

1995 Mar 21 57

Page 58

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ and linear audio

14 SOLDERING

14.1 Plastic quad ﬂat packages

14.1.1 BY WAVE During placement and before soldering, the component

must be fixed with a droplet of adhesive. After curing the adhesive, the component can be soldered. The adhesive can be applied by screen printing, pin transfer or syringe dispensing.

Maximum permissible solder temperature is 260 °C, and maximum duration of package immersion in solder bath is 10 s, if allowed to cool to less than 150 °C within 6 s. Typical dwell time is 4 s at 250 °C.

A modified wave soldering technique is recommended using two solder waves (dual-wave), in which a turbulent wave with high upward pressure is followed by a smooth laminar wave. Using a mildly-activated flux eliminates the need for removal of corrosive residues in most applications.

14.1.2 BY SOLDER PASTE REFLOW

TDA9614H

Several techniques exist for reflowing; for example, thermal conduction by heated belt, infrared, and vapour-phase reflow. Dwell times vary between 50 and 300 s according to method. Typical reflow temperatures range from 215 to 250 °C.

Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 min at 45 °C.

14.1.3 REPAIRING SOLDERED JOINTS (BY HAND-HELD

SOLDERING IRON OR PULSE-HEATED SOLDER TOOL)

Fix the component by first soldering two, diagonally opposite, end pins. Apply the heating tool to the flat part of the pin only. Contact time must be limited to 10 s at up to 300 °C. When using proper tools, all other pins can be soldered in one operation within 2 to 5 s at between 270 and 320 °C. (Pulse-heated soldering is not recommended for SO packages.)

For pulse-heated solder tool (resistance) soldering of VSO packages, solder is applied to the substrate by dipping or by an extra thick tin/lead plating before package placement.

Reflow soldering requires the solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the substrate by screen printing, stencilling or pressure-syringe dispensing before device placement.

1995 Mar 21 58

Page 59

Philips Semiconductors Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

TDA9614H

and linear audio

15 DEFINITIONS

Data sheet status

Objective speciﬁcation This data sheet contains target or goal speciﬁcations for product development. Preliminary speciﬁcation This data sheet contains preliminary data; supplementary data may be published later. Product speciﬁcation This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the speciﬁcation is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.

16 LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.

17 PURCHASE OF PHILIPS I

Purchase of Philips I components in the I Philips. This specification can be ordered using the code 9398 393 40011.

C COMPONENTS

C components conveys a license under the Philips’ I2C patent to use the

C system provided the system conforms to the I2C specification defined by

1995 Mar 21 59

Page 60

Philips Semiconductors – a worldwide company

Argentina: IEROD, Av. Juramento 1992 - 14.b, (1428)

BUENOS AIRES, Tel. (541)786 7633, Fax. (541)786 9367

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Tel. (040)3296-0, Fax. (040)3296 213.

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Tel. (0212)279 27 70, Fax. (0212)282 67 07

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276 Bath Road, Hayes, MIDDLESEX UB3 5BX, Tel. (0181)730-5000, Fax. (0181)754-8421

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CA 94088-3409, Tel. (800)234-7381, Fax. (708)296-8556

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Internet: http://www.semiconductors.philips.com/ps/ For all other countries apply to: Philips Semiconductors,

International Marketing and Sales, Building BE-p, P.O. Box 218, 5600 MD, EINDHOVEN, The Netherlands, Telex 35000 phtcnl, Fax. +31-40-724825

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.

Printed in The Netherlands

513061/1500/01/pp60 Date of release: 1995 Mar 21 Document order number: 9397 750 00047

Philips Semiconductors

Datasheet TDA9614H Datasheet (Philips)

Specifications and Main Features

Frequently Asked Questions

User Manual

1 FEATURES

2 GENERAL DESCRIPTION

3 ORDERING INFORMATION

4 BLOCK DIAGRAM

5 PINNING

6 FUNCTIONAL DESCRIPTION

6.1 Audio I/O switching

6.2 Linear audio circuits

6.3 Audio FM circuits

6.4 I2C-bus

6.6 Control byte Table 7 Bits of control byte

6.7 Main select byte

6.8 Secondary select byte

6.9 Left/Right (L/R) volume byte

6.10 Headphone volume byte

6.11 Install byte

6.12 Test byte

6.13 Read byte

7 LIMITING VALUES

8 THERMAL CHARACTERISTICS

9 DC CHARACTERISTICS

10 AC CHARACTERISTICS

10.1 Record audio FM mode

10.2 Record linear audio mode

10.3 Playback Audio FM mode

10.4 Playback linear audio

11 INTERNAL CIRCUITRY

12 TEST AND APPLICATION INFORMATION

12.1 RAF I/O (pin 12)

12.2 RCCOL, RCCOR, RBPF and RFIX (pins 59, 53, 55 and 49)

SOT319-2

13 PACKAGE OUTLINE

14 SOLDERING

15 DEFINITIONS

16 LIFE SUPPORT APPLICATIONS