Datasheet TDA9614H-N1 Datasheet (Philips)

DATA SH EET

Preliminary specification
File under Integrated Circuits, IC02

1995 Mar 21

INTEGRATED CIRCUITS

Philips Semiconductors

TDA9614H

Audio processor for VHS hi-fi
and linear audio

1995 Mar 21 2

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

DDD

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

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

1995 Mar 21 3

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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).

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

Note

1. When using IR reflow soldering it is recommended that the Drypack instructions in the

“Quality Reference Handbook”

(order number 9398 510 63011) are followed.

TYPE NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TDA9614H QFP64

(1)

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

SOT319-2

1995 Mar 21 4

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

4 BLOCK DIAGRAM

MBE275

SUPPLY AND V

ref

I

ref

HF AGC

BPF

BPF

M

RAF

HF

LPF

HF

LIMITER

HF

LPF

LEVEL

DETECT

HF

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

M

RN IPN RN

PBSet

PB eq

LP

RN IPN

AGCN

Normal Sel

Input Sel

NOISE REDUCTION

volume R

AUDIO

LPF

M

AFOMute

volume L

M

NOMute

Out Sel

M

RFCMute

volume HP

Line Sel

Dec Sel

HP Sel

2

6107113

8109

11

M

AFOMute

NOISE REDUCTION

AUDIO

LPF

DC Sel

RAF IPAF

DOC

DOC

MUTE

I C

2

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

23

24

25

26

19

20

21

22

18

17

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

28 29 2736353432333130

56

57

55

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

V

SSD

V

DDD SCLSDARAFCMUTE

ENVOUT

RCCOL

RCCOR

HIDRFIX

V

V

DDA1

V

SSA1

V

DDA2

V

SSA2

TDA9614H

ref

Fig.1 Block diagram.

1995 Mar 21 5

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

V

DDD

13 Digital supply voltage for I2C-bus (+5 V).
SDA 14 Data input/output for I2C-bus.
SCL 15 Clock input for I2C-bus.
V

SSD

16 Digital ground for I2C-bus.
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

equalization network.

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.
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.

1995 Mar 21 6

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

42 Noise filtering of 3.8 V reference voltage (external capacitor required for filtering).

V

SSA1

43 Analog ground 1 for LF circuits.
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

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).

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.

V

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.
FMOUT 56 FM output.
FMIN 57 FM input.
V

DDA2

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

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

to ground.
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

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 (playback).

SYMBOL PIN DESCRIPTION

1995 Mar 21 7

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

20

21

22

23

24

25

26

27

28

29

30

31

32

64

63

62

61

60

59

58

57

56

55

54

53

52

RECOUT

PBIN

RESSW

PBDC

DCFBL

DCREFL

EMPHL

RECTL

DETL

V

DETR

RECTR

EMPHR

DCREFR

DCFBR

RFIX

AFNR

ref

V

SSA1

V

DDA1

SAP

TUNL

TUNR

CINL

CINR

EXT1L

EXT1R

EXT2L

EXT2R

EXT3L

EXT3R

RAF

V

SDA
SCL

RFCAGC
RFCOUT

LINE2L

LINE2R

LINEL

LINER

DCOUTL

DCOUTR

HPOUTL

HPOUTR

LINAGC

LININ

LINOUT

EQSW

RECEQ

LINREC

DDD

V

SSD

AFNL

AFML

CMUTE

HID

ENVOUT

RCCOLVFMIN

FMOUT

RBPF

RCCOR

AFMR

DDA2

V

SSA2

1995 Mar 21 8

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

6 FUNCTIONAL DESCRIPTION

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

ON

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.

1995 Mar 21 9

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

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.

1995 Mar 21 10

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 1 Output select possibilities

Note

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

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.

SELECTION REMARK DESCRIPTION

STEREO

(1)

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

SELECTION DESCRIPTION

NORMAL linear audio, useful for monitoring during ‘audio dubbing’
EXT2

(1)

audio from input EXT2
EXT3

(2)

audio from input EXT3

1995 Mar 21 11

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

Notes

1. Enables the use of a decoder box (connected to line 2
[EXT2]) by the VCR.

2. Decoder box connection to television set
(See Section 6.1.7).

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.

Table 4 Extra headphone select possibilities

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

EADPHONE VOLUME

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

SELECTION DESCRIPTION

TUNER

(1)

audio from input TUNER

EXT1

(2)

audio from input EXT1

EXT3 audio from input EXT3

SELECTION DESCRIPTION

LEFT

(1)

left hi-fi channel

RIGHT

(1)

right hi-fi channel

NORMAL linear audio, useful for monitoring the

recording by ‘audio dubbing’

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.
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

LAYBACK

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

A 3.98

1200 Z

+( )

Z

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

×=

1995 Mar 21 12

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

(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

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.

1995 Mar 21 13

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Fig.4 Timing diagram of automatic calibration.

MBE281

max 240 ms

max 240 ms

max 10 ms

HID

CALS

LEFT

OSCILLATOR

RIGHT

OSCILLATOR

CALR

BANDPASS

FILTERS

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.

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/

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.

1995 Mar 21 14

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 5 TDA9614H addresses and data bytes

Note

1. These bits determine the subaddress.

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

DDD

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

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

NAME ADDRESS

Slave address byte 1 0 1 1 1 0 0 R/

W

Subaddress bytes 00 to 07 0 0 0 0 0 X

(1)

X

(1)

X

(1)

Control byte (subaddress 00) RAF IPAF AFOM NTSC RN IPN NOM LP
Main select byte

(subaddress 01)

IS2 IS1 IS0 NS1 NS0 OSL OSR OSN

Secondary select byte
(subaddress 02)

HSL HSR DCS RFCM LOS1 LOS0 DOS1 DOS0

Left volume byte
(subaddress 03)

0 VLM VL5 VL4 VL3 VL2 VL1 VL0

Right volume byte
(subaddress 04)

0 VRM VR5 VR4 VR3 VR2 VR1 VR0

Headphone volume byte
(subaddress 05)

0 VHM VH5 VH4 VH3 VH2 VH1 VH0

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

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

1995 Mar 21 15

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

6.6 Control byte
Table 7 Bits of control byte

Table 8 Bits RAF and IPAF

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

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

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

RAF

(1)

IPAF MODE DESCRIPTION

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

(2)

NR and modem in record mode

1 1 record

(2)

NR and modem in record mode

AFOM MODE DESCRIPTION

0 − −
1 mute

(1)

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

NTSC MODE DESCRIPTION

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

1995 Mar 21 16

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 11 Bits RN and IPN

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

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

RN

(1)

IPN MODE DESCRIPTION

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

(2)

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

1 1 record linear audio circuit in record mode

NOM MODE DESCRIPTION

0 − −
1 mute

(1)

output from linear audio circuit is muted [por]

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).

1995 Mar 21 17

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

6.7 Main select byte

Table 14 Bits of main select byte

Table 15 Bits IS2 to IS0; note 1

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

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).

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

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

(2)

output from linear audio (LININ; pin 28)

1 1 1 Dub Mix

(2)(3)

mixing of EXT3 input with hi-fi output signal

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

1995 Mar 21 18

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 17 Bits OSL, OSR and OSN; note 1

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

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.

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

1995 Mar 21 19

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 19 Bits HSL and HSR

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

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.

Table 21 Bit RFCM

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

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.

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.

DCS MODE DESCRIPTION

(1)

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

RFCM MODE DESCRIPTION

(1)

0 − [por]
1 mute

(1)

RF converter output signal muted

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.

1995 Mar 21 20

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 23 Bits DOS1 and DOS0; note 1

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

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

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.

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

VLM VL5 VL4 VL3 VL2 VL1 VL0

MODE

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

1995 Mar 21 21

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

VLM VL5 VL4 VL3 VL2 VL1 VL0

MODE

VRM VR5 VR4 VR3 VR2 VR1 VR0

1995 Mar 21 22

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

Table 27 Headphone volume byte; notes 1 and 2

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

BIT DESCRIPTION

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

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

VLM VL5 VL4 VL3 VL2 VL1 VL0

MODE

VRM VR5 VR4 VR3 VR2 VR1 VR0

1995 Mar 21 23

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

VHM VH5 VH4 VH3 VH2 VH1 VH0 MODE

1995 Mar 21 24

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

Table 29 Bits DEV1 and DEV0; note 1

Note

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

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

BIT DESCRIPTION

DEV1 and DEV0 Deviation 1 and Deviation 0; see Table29
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

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

VHM VH5 VH4 VH3 VH2 VH1 VH0 MODE

1995 Mar 21 25

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 30 Normal Playback Level bits; note 1

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

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

Note

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

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

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.

DOC MODE DESCRIPTION

0 − −
1 drop-out cancel

(1)

audibility of short drop-outs is minimized [por]

1995 Mar 21 26

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

6.12 Test byte

Table 33 Bits of test byte

Table 34 Bit STBY

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.

Table 35 Bit CALS

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

Note

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

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

STBY MODE DESCRIPTION

0 − normal operation [por]
1 standby

(1)

standby mode (low power consumption)

CALS MODE DESCRIPTION

0 − [por]
1 auto-calibrate

(1)

oscillators and BPFs are automatically calibrated

AGCN MODE DESCRIPTION

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

1995 Mar 21 27

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 37 Test bits TST4 to TST0; note 1

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.

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

1995 Mar 21 28

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Table 38 Linear audio playback equalization non-standard settings

6.13 Read byte
Table 39 Bits of read byte

Table 40 Bit CALR; note 1

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

DDD

) is available.

Table 41 Bit PAFM; note 1

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

Note

1. When the IC is switched on, or a power dip occurs on the digital supply (V

DDD

) line, a Power-on Reset signal is
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.

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

BIT DESCRIPTION

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

CALR MODE DESCRIPTION

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

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.

POR MODE DESCRIPTION

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

1995 Mar 21 29

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

7 LIMITING VALUES

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

Notes

1. Machine Model (MM).

2. Human Body Model (HBM).

8 THERMAL CHARACTERISTICS

9 DC CHARACTERISTICS

V

DDA1

= 12 V; V

DDA2

= 5 V; V

DDD

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

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. MAX. UNIT

V

DDA1

analog supply voltage 1 0 13.2 V

V

DDA2

analog supply voltage 2 0 5.5 V

V

DDD

digital supply voltage 0 5.5 V

V

n

voltage on pins:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 28, 41, 44, 51, 52,
63 and 64

0 7.7 V

56, 60 and 62 0 V

DDA2

V

12 and 32 0 V

DDD

V

T

stg

storage temperature −65 +150 °C

T

amb

operating ambient temperature 0 +70 °C

V

es

electrostatic handling MM; note 1 −150 +150 V

HBM; note 2 −1500 +1500 V

SYMBOL PARAMETER VALUE UNIT

R

th j-a

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

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

Supply voltages

V

DDA1

analog supply voltage 1; pin 50 10.5 12 13.2 V

V

DDA2

analog supply voltage 2; pin 58 4.75 5 5.5 V

V

DDD

digital supply voltage; pin 13 4.75 5 5.5 V

Supply currents

I

DDA1

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

standby − 28 35 mA

I

DDA2

analog supply current 2; pin 58 record

(1)

; LT

(2)

− 7 9 mA

playback

(3)

− 18 23 mA

standby; LT

(2)

− 3 5 mA

I

DDD

digital supply current; pin 13 operating − 1 3 mA

standby − 1 3 mA

1995 Mar 21 30

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Input voltages

V

I

DC input voltage; pins 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 28, 31, 34, 35
and 36

− 3.8 − V

V

57

DC input voltage internally
generated; pin 57

− 1.9 − V

V

30

DC input voltage internally
generated; pin 30

− 0 − V

V

51,64

DC input voltage internally
generated; pins 51 and 64

playback

(3)

− 3.8 − V

V

52,63

DC input voltage internally
generated; pins 52 and 63

record

(1)

; LT

(2)

− 3.8 − V

Output voltages

V

O

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

(1)

− 1.2 − V

pin 56 playback

(3)

; LT

(2)

− 1.2 − V
pin 55 − 0.6 − V
pins 51 and 64 record

(1)

; LT

(2)

− 4.3 − V
pins 52 and 63 playback

(3)

− 3.3 − V

Head identification pulse input (HID; pin 61)

V

IH

HIGH level input voltage 2.75 − 5.50 V

V

IL

LOW level input voltage 0 − 2.25 V

Normal record pin (LINREC; pin 32)

V

OH

HIGH level output voltage IL= −500 µA V

DDD

− 0.5 − − V

V

OL

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

I/O RAF (pin 12)

U

SED AS OUTPUT

V

OH

HIGH level output voltage RAF = 1;

IL= −35 µA

V

DDD

− 0.25 − V

DDD

V

V

OL

LOW level output voltage RAF = 0;

IL= 185 µA

0 − 0.4 V

I

OH

HIGH level output current
(drive capability)

RAF = 1 −35 − − µA

I

OL

LOW level output current
(drive capability)

RAF = 0 185 − − µA

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

1995 Mar 21 31

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

DDA1

= 12 V; V

DDA2

= 5 V; V

DDD

= 5 V; NTSC = 0;

LP = 0; CALR = 1; f = 1 kHz (audio test frequency); T

amb

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

circuit (see Fig.13); unless otherwise specified.

USED AS INPUT (OUTPUT OVERRULED)
V

IH

HIGH level input voltage 3.5 − V

DDD

V

V

IL

LOW level input voltage 0 − 1.5 V

I

IH

HIGH level input current at V

IH

− − 345 µA

I

IL

LOW level input current at V

IL

− − −65 µA

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)

R

i

input resistance 100 130 − kΩ

V

iAF

audio input voltage − − 8 dBV

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

V

o(max)

maximum output voltage −9 −8 −7 dBV

THD = 1%; RL= 5 kΩ;
CL= 2.2 nF;
TUNL ≤ −3 dBV;
TUNR ≤ −3 dBV; note 1

10 11 − dBV

R

o

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

n

noise level fi= 300 Hz to 20 kHz;

TUNL and TUNR
AC grounded

− −91 −87 dBV

α

cb

channel balance −1 0 +1 dB
V

mute

volume mute level − −100 −80 dBV

α

ct

crosstalk between channels one channel driven − −83 −78 dBV
f

res

frequency response with

respect to 1 kHz; low-pass

filter transfer

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

α

ct(max)

maximum audio input crosstalk −8 dBV at a not selected

stereo audio input

− −90 − dBV

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

1995 Mar 21 32

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

o

output voltage 1.69 1.8 1.91 V
R

o

output resistance − 100 − Ω
V

o

output voltage at maximum

record level

TUNL = −3 dBV;
TUNR = −3 dBV; note 1

V

DDD

− 0.5− V

DDD

V

V

oz

output voltage for zero-level

input

− − 300 mV

α

cb

channel balance −0.11 − +0.11 dB
RF converter drive output; mono RFCOUT; pin 18 (see Fig.8)
V

o

output voltage −9 −8 −7 dBV
R

o

output resistance − 100 − Ω
THD total harmonic distortion − 0.01 − %
V

o

output voltage at maximum

record level

TUNL = −3 dBV;
TUNR = −3 dBV; note 1

−5 −3 −1 dBV

THD total harmonic distortion at

maximum record level

TUNL = −3 dBV;
TUNR = −3 dBV; note 1

− 0.3 − %

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

V

o

output voltage −9 −8 −7 dBV
R

o

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

o(max)

maximum output voltage THD = 1%;

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

9.0 9.5 − dBV

V

n

noise level fi= 300 Hz to 20 kHz;

tuner AC grounded

− −90 −80 dBV

α

ct

crosstalk between channels one channel driven − −83 −70 dBV
V

mute

headphone volume mute level − −90 −70 dBV

α

cb

channel balance −1 − +1 dB

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

1995 Mar 21 33

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

V

oAF

audio output voltage −12.5 −11.5 −10.5 dBV
THD total harmonic distortion − 0.12 0.3 %
V

oAF

audio output voltage at

maximum record level

TUNL = −3 dBV;
TUNR = −3 dBV; note 1

−3.5 −2 −0.5 dBV

THD total harmonic distortion at

maximum record level

TUNL = −3 dBV;
TUNR = −3 dBV; note 1

− 0.2 3 %

V

n

noise level fi= 300 Hz to 20 kHz;

tuner AC grounded

− −54 −52 dBV

α

cb

channel balance −1 − +1 dB
L linearity V

i

= −8 to −68 dBV 28.5 30 31.5 dB

α

cc

channel crosstalk one channel driven − −58 −50 dBV
t

att

attack time according VHS − 5 − ms
t

rec

recovery time according VHS − 70 − ms
V

mute

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

iAF

= −11.5 dBV;

NTSC = 0

45 50 55 kHz

V

iAF

= −11.5 dBV;

NTSC = 1

45 50 55 kHz

audio input signal from NR
outputs AFNL and AFNR;
NTSC = 0

44.5 50 56.1 kHz

audio input signal from NR
outputs AFNL and AFNR;
NTSC = 1

44.5 50 56.1 kHz

∆f

max

maximum FM frequency

deviation

140 150 160 kHz

f

oL

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

calibrated in PAL mode

1395 1400 1405 kHz

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

1295 1300 1305 kHz

NTSC = 1; calibrated in
PAL mode

− 1300 − kHz

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

1995 Mar 21 34

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Note

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

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.

f

oR

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

calibrated in PAL mode

1795 1800 1805 kHz

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

1695 1700 1705 kHz

NTSC = 1; calibrated in
PAL mode

− 1700 − kHz

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

HF output stage (FMOUT; pin 56)

V

oR(p-p)

right output voltage

(peak-to-peak value)

foR= 1.8 MHz;
1st harmonic

455 510 572 mV

foR= 1.7 MHz;
1st harmonic

455 510 572 mV

V

oL(p-p)

left output voltage

(peak-to-peak value)

foL= 1.4 MHz;
1st harmonic

152 170 190 mV

foL= 1.3 MHz;
1st harmonic

152 170 190 mV

ratio of output voltages 2.7 3 3.3

α

3rd

3rd harmonic suppression NTSC = 0 20 30 − dB

NTSC = 1 18 28 − dB

R

o

output resistance − 100 130 Ω

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Linear audio playback input; PBIN (pin 34)

Z

i

input impedance IL= ±1 mA − 7 15 Ω

Linear audio EQSW input (pin 30)

Z

i

input impedance LP = 0 100 150 − kΩ

LP = 1 − 15 30 Ω

Line output (pins 21 and 22)

V

o

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

AGCN = 1;
NormSel = volume; note 1

−10 −8 −6 dBv

α

ct

crosstalk (linear to stereo) OutSel = stereo;

NormSel = SAP; TUNL
and TUNR AC grounded

− −88 −80 dBV

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

V

oR

V

oL

-------

---

1995 Mar 21 35

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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).

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).

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

o

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

AGCN = 1;
NormSel = volume; note 1

−4 −2 0 dBv

THD total harmonic distortion AGCN = 1;

NormSel = volume

− 0.02 0.5 %

V

n

noise level AGCN = 1; TUNL and

TUNR AC grounded

− −80 −70 dBV

Z

o

output impedance − 100 200 Ω

V

mute

mute level loop-through R;

NOM = mute

− −85 − dBV

Linear audio RECEQ (pin 31)

Z

t

transfer impedance note 2 900 1200 1500 Ω

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

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

V

o(rms)

output voltage level at FMOUT
(RMS value)

V

iHF(rms)

= 30 mV;

1.3 MHz BPF

105 150 215 mV

V

iHF(rms)

= 30 mV;

1.4 MHz BPF

105 150 215 mV

V

iHF(rms)

= 30 mV;

1.7 MHz BPF

105 150 215 mV

V

iHF(rms)

= 30 mV;

1.8 MHz BPF

105 150 215 mV

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

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

A

R Z+

( )

Z

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

3.98×=

1995 Mar 21 36

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

f

shift

frequency shift of BPF curve
with temperature

T

amb

= 0 to 70 °C − 10 − kHz

HF AGC

V

i max(p-p)

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

1.4 and 1.8 MHz carrier
added

− − 1.25 V

V

oL(rms)

left BPF output voltage level
(RMS value)

fi= 1.4 MHz at FMIN;
V

iHF(rms)

= 4 mV

13 19 28 mV

fi= 1.4 MHz at FMIN;
V

iHF(rms)

= 25 mV

84 120 170 mV

fi= 1.4 MHz at FMIN;
V

iHF(rms)

= 125 mV

84 120 170 mV

V

oR(rms)

right BPF output voltage level
(RMS value)

fi= 1.8 MHz at FMIN;
V

iHF(rms)

= 4 mV

13 19 28 mV

fi= 1.8 MHz at FMIN;
V

iHF(rms)

= 25 mV

84 120 170 mV

fi= 1.8 MHz at FMIN;
V

iHF(rms)

= 125 mV

84 120 170 mV

B −3 dB bandwidth V

iHF(rms)

= 75 mV;

1.4 MHz carrier

− 10 − kHz

PLL FM demodulator and limiter

α

AM

AM rejection V

iHF(rms)

= 2 to 200 mV;

m = 30%

− −70 − dBV

V

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

iHF

= 30 mV; ∆f = 50 kHz 54 57 − dB

V

oAF

AF output voltage ∆f = 50 kHz −12.5 −11.5 −10.5 dBV

V

step

step response note 1 − − −48 dBV

α

ct

crosstalk between channels L to R; R to L − −90 − dBV

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

1995 Mar 21 37

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

Sample-and-hold (see Fig.9)
t

h

hold time pulse width 5 6 7 µs

d

AF

audio distortion note 2 − − −75 dB

t

d

delay from HID pulse to hold
pulse

− 0.4 − µs

Drop-Out Cancellation (DOC)

DOC activation level w.r.t.
mute activation level

−7 −4 −2 dB

t

d(off)

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

Mute timing (CMUTE; pin 62)

V

i(rms)

mute activation level
(RMS value) referenced to
FMIN

2.2 4.2 7.1 mV

t

d(off)

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

t

d(on)

switch-on delay time no signal to signal − 400 − ms
Level detector output ENVOUT; pin 60 (see Fig.10)
V

o

output voltage level fi(FMIN) = 1.4 MHz;

V

iHF(rms)

= 2 mV

0.6 0.9 1.2 V

fi(FMIN) = 1.4 MHz;
V

iHF(rms)

= 20 mV

2.5 2.9 3.3 V

fi(FMIN) = 1.4 MHz;
V

iHF(rms)

= 200 mV

4.1 4.5 4.8 V

R

o

output resistance − 33 − kΩ

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

V

o

output voltage −10 −8 −6 dBV

input signal from modem
to AFML and AFMR

−10 −8 −6 dBV

V

n

noise level fi= 300 Hz to 20 kHz − −98 −90 dBV
THD total harmonic distortion − 0.05 0.2 %
L linearity V

iAF

= −11.5 to −41.5 dBV 58 60 62 dB

α

cb

channel balance −2 0 +2 dB
f

res

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

SYMBOL PARAMETER CONDITIONS MIN TYP. MAX. UNIT

1995 Mar 21 38

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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)

Z

i

input impedance 60 100 − kΩ
V

o

output voltage at LINOUT −14 −12 −10 dBV

Linear audio RESSW input (pin 35)

Z impedance between RESSW

and PBIN

LP = 0 − 50 100 Ω
LP = 1 100 150 − kΩ

Line outputs LINEL and LINER (pins 21 and 22)

V

o

output voltage LP = 0 −8 −6 −4 dBV

LP = 1 −6.7 −4.7 −2.7 dBV

f

res

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
THD total harmonic distortion − 0.05 0.5 %
V

o(max)

maximum output voltage THD = 1% − 10 − dBV

V

n

noise level fi= 300 Hz to 20 kHz − −58 −55 dBV

referenced to PBIN − −120 − dBV

68 48 28 12

1.5

11.5

31.5

41.5

21.5

MKA362

8

V

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

8

V

iAF

(dBV)

V (dBV)

o

1995 Mar 21 39

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

Fig.7 VU meter output voltage at

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

5

2

3

0

1

4

MKA364

58 38 18 222

V (dBV)

o

V

o

(V)

DCOUTL/R = 2.86 x audio level

handbook, halfpage

0

15

10

20

5

MGC418

58 38 18 222

V (dBV)

o

V

o

(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

time

track

hold

sample-and-

hold

CONTROL

HID

INPUT

t

t

d

h

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

10

3

0

MBE282

10

2

10110

1

5

1

2

3

4

V (mV)

iHF

V

o

(V)

1995 Mar 21 40

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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

handbook, full pagewidth

8

10

18

2

6

10

14

20 16 12 8 4 0 4

MBE283

6

2
0

RECOUT

(dBV)

4

24

8

12

16

20

0

LINE

(dBV)

4

V (dBV)

i

(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

t

d

t

d

HIGH

LOW

1995 Mar 21 41

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

11 INTERNAL CIRCUITRY

SYMBOL PIN EQUIVALENT CIRCUIT 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.

MLD008

1

78 kΩ

52 kΩ

3.8 V

MLD009

2

13 kΩ65 kΩ

52 kΩ

3.8 V

MLD010

3

13 kΩ65 kΩ

52 kΩ

3.8 V

MLD011

4

78 kΩ

52 kΩ

3.8 V

MLD012

5

78 kΩ

52 kΩ

3.8 V

MLD013

6

13 kΩ65 kΩ

52 kΩ

3.8 V

MLD014

7

13 kΩ65 kΩ

52 kΩ

3.8 V

1995 Mar 21 42

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

V

DDD

13 Digital supply voltage for I2C-bus

(+5 V).

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

MLD015

8

13 kΩ65 kΩ

52 kΩ

3.8 V

MLD016

9

13 kΩ65 kΩ

52 kΩ

3.8 V

MLD017

10

13 kΩ65 kΩ

52 kΩ

3.8 V

MLD018

11

13 kΩ65 kΩ

52 kΩ

3.8 V

MLD019 

275

Ω

12

100 µA

RAF

I C-RAF

2

1 3

2 1

1995 Mar 21 43

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

SDA 14 Data input/output for I2C-bus.

SCL 15 Clock input for I2C-bus.

V

SSD

16 Digital ground for I2C-bus.

RFCAGC 17 RF converter AGC-time constant.

RFCOUT 18 RF converter drive output.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

275 Ω

14

MLD020

275 Ω

15

MLD021

MLD022

17

100 Ω

18

250 µA

MLD023

1995 Mar 21 44

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

MLD024

5.8 kΩ

200 Ω

5.8 kΩ

19

MLD025

5.8 kΩ

200 Ω

5.8 kΩ

20

MLD026

5.8 kΩ

200 Ω

5.8 kΩ

21

1995 Mar 21 45

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

MLD027

5.8 kΩ

200 Ω

5.8 kΩ

22

MLD028

23

100 Ω

MLD029

24

100 Ω

MLD030

2.7 kΩ 8 kΩ

25

1995 Mar 21 46

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

MLD031

2.7 kΩ 8 kΩ

26

MLD032

27

100 Ω

MLD033

28

90 kΩ

3.8 V

MLD034

AGC

29

playback
equalizer

250 µA

4330

150 kΩ

MLD035

V

SSA1

1995 Mar 21 47

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

RECEQ 31 Linear audio recording amplifier

negative feedback input for
connecting a record equalization
network.

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.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

MLD036

1.75 kΩ 3.8 kΩ

33

31

275 Ω

32

MLD037

MLD038

1.6 kΩ 4.8 kΩ

33

31

100 Ω

1995 Mar 21 48

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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).

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

35

36

34

470 Ω

100 kΩ

3.8 V

3.8 V

150 kΩ

MLD039

MLD040

38

46.8 kΩ4.3 kΩ

3.8 V

37

100 kΩ

39

250 µA

1995 Mar 21 49

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

RECTL 40 Rectifier DC decoupling left.

DETL 41 Attack/recovery timing left.

V

ref

42 Noise filtering of 3.8 V reference

voltage (external capacitor required
for filtering).

V

SSA1

43 Analog ground 1 for LF circuits.

DETR 44 Attack/recovery timing right.

RECTR 45 Rectifier DC decoupling right.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

40

MLD041

MLD042

41

384 Ω

16.4
µA

MLD043

20 kΩ

3.8 V

42

MLD044

44

384 Ω

16.4
µA

45

MLD045

1995 Mar 21 50

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

EMPHR 46 Total emphasis right (240to 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

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).

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

MLD046

47

46.8 kΩ4.3 kΩ

3.8 V

48

100 kΩ

46

250 µA

MLD047

3.8 V

49

MLD048

51

3.8 V

from 
noise
reduction

to 
noise
reduction

250 µA

playback

22.3 kΩ

2.7 kΩ

record

1995 Mar 21 51

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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.

V

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.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

audio clipper

3.8 V

25 kΩ

MLD049

250 µA

playback

record

sample-
and- hold

52

MLD050

53

CCO-current

55

1.3 V

MLD051

1995 Mar 21 52

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

FMOUT 56 FM output.

FMIN 57 FM input.

V

DDA2

58 Analog supply voltage 2 for

HF circuits (+5 V).

RCCOL 59 Voltage-to-current transfer for left

channel oscillator by means of an
external resistor to ground.

ENVOUT 60 Level detector output (external

capacitor required for filtering).

HID 61 Head Identification Pulse (HID)

input for sample-and-hold circuits.

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

MLD052

56

50 Ω

900 µA

MLD053

57

4 kΩ

15 kΩ

1.9 V

MLD054

59

CCO-current

MLD055

60

33 kΩ

MLD056

2.5 V

3 kΩ

61

1995 Mar 21 53

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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
(playback).

SYMBOL PIN EQUIVALENT CIRCUIT DESCRIPTION

275

Ω

62

ENVOUT

MLD057

18 µA

PBMUTE

1

26

audio clipper

3.8 V

25 kΩ

MLD058

63

250 µA

playback

record

sample-
and- hold

MLD059

64

3.8 V

from 
noise
reduction

to 
noise
reduction

250 µA

playback

22.3 kΩ

2.7 kΩ

record

1995 Mar 21 54

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

12 TEST AND APPLICATION INFORMATION

TDA9614H

MBE279

RECOUT

PBIN

RESSW

PBDC

DCFBL

DCREFL

EMPHL

RECTL

DETL

V

DETR

RECTR

EMPHR

DCREFR

DCFBR

RFIX

AFNR

ref

V

SSA1

V

DDA1

SAP

TUNL

TUNR

CINL

CINR

EXT1L

EXT1R

EXT2L

EXT2R

EXT3L

EXT3R

RAF

V

SDA

SCL

RFCAGC

RFOUT

LINE2L

LINE2R

LINEL

LINER

DCOUTL

DCOUTR

HPOUTL

HPOUTR

LINAGC

LININ

LINOUT

EQSW

RECEQ

LINREC

DDD

V

SSD

AFNL

AFML

CMUTE

HID

ENVOUT

RCCOL

V

FMIN

FMOUT

RBPF

RCCOR

AFMR

DDA2

V

SSA2

32

33343536373839404142434445464748495051

31

30

29

28

27

26

25

24

23

22

21

20

52

53

54

55

56

57

58

59

60

61

62

63

64

R

L

R

L

R

L

R

L

R

L

220 nF

(11x)

100

µF

22

nF

10 µF 10 µF

100 kΩ

5 V

100

µF

10 µF

10 µF

100

µF

2.2 µF

10 µF

10 µF

22

nF

200 pF

22 nF

22 nF

10 nF

100

pF

22

nF

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

R

100 µF

100

kΩ

100 Ω

3.3 MΩ

220

nF

L

head-

phone

output

10 µF

100

kΩ

L

10 µF

100

kΩ

R

LINE2

output

10 µF

100

kΩ

L

10 µF

100

kΩ

R

LINE

output

L

R

DC

output

100

kΩ

220 nF

220 nF

10 µF

4.7

nF

22 µF10 µF2.2 µF10 µF22 µF

4.7

nF

10 µF

10 µF

180

kΩ

18 kΩ

22 kΩ

10 kΩ

8.2 kΩ

100 kΩ

100 kΩ

50

Ω

100

kΩ

100

kΩ

Fig.13 Test circuit.

1995 Mar 21 55

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

handbook, full pagewidth

MBE277

SUPPLY AND V

ref

I

ref

HF AGC

BPF

BPF

M

RAF

HF

LPF

HF

LIMITER

HF

LPF

LEVEL

DETECT

HF

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

M

RN IPN RN

PBSet

PB eq

LP

RN IPN

AGCN

Normal Sel

Input Sel

NOISE REDUCTION

volume R

AUDIO

LPF

M

AFOMute

volume L

M

NOMute

Out Sel

M

RFCMute

volume HP

Line Sel

Dec Sel

HP Sel

2

6107113

8109

11

M

AFOMute

NOISE REDUCTION

AUDIO

LPF

DC Sel

RAF IPAF

DOC

DOC

MUTE

I C

2

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

23

24

25

26

19

20

21

22

18

17

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

28 29 2736353432333130

56

57

55

SCLSDA

RAF

HID

HF envelope

TDA9614H

10

µF

100

kΩ

10

µF

100

kΩ

10 µF

10 µF

100

kΩ

100

kΩ

R

L

10 µF

100

kΩ

3.3

MΩ

RFC

Line

10 µF

10 µF

100

kΩ

100

kΩ

R

L

100

µF

10

kΩ

100 Ω

R

100

µF

10

kΩ

100 Ω

L

Line 2

(decoder)

head-

phone

10 µF

10

µF

4.7 nF

220 nF

10 µF

220 nF

47 µF

10

µF

10

µF

1.5

nF

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

22 nF

8.2 kΩ

470 Ω

27

kΩ

1 kΩ

10

mH

FM in

FM out

amplifier

100 µF

100 µH

12 V

22

nF

22

nF

100 µF

100 µH

5 V

5 V

2.2

µF

2.2

µF

180

kΩ

22

kΩ

18

kΩ

10 nF

10 µF 10 µF

10

µF

10

µF

4.7

nF

220 nF

LL

(1)

DCOUTL

DCOUTR

Fig.14 Application diagram.

(1) LL = Low Leakage.

1995 Mar 21 56

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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).

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 57

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

13 PACKAGE OUTLINE

UNIT A1A2A3b

p

c E

(1)

e HEL LpQ Zywv θ

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

0.25

0.05

2.90

2.65

0.25

0.50

0.35

0.25

0.14

14.1

13.9

1

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

D

(1) (1)(1)

20.1

19.9

H

D

24.2

23.6

E

Z

1.2

0.8

D

e

θ

E

A

1

A

L

p

Q

detail X

L

(A )

3

B

19

y

c

E

H

A

2

D

Z

D

A

Z

E

e

v M

A

1

64

52

51 33

32

20

X

pin 1 index

b

p

D

H

b

p

v M

B

w 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

1995 Mar 21 58

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

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
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.

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.

1995 Mar 21 59

Philips Semiconductors Preliminary specification

Audio processor for VHS hi-fi
and linear audio

TDA9614H

15 DEFINITIONS

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

2

C COMPONENTS

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.

Purchase of Philips I

2

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

components in the I

2

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

Philips. This specification can be ordered using the code 9398 393 40011.

Philips Semiconductors

Philips Semiconductors – a worldwide company

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

BUENOS AIRES, Tel. [phone], Fax. [phone]

Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,

Tel. [phone], Fax. [phone]

Austria: Triester Str. 64, A-1101 WIEN, P.O. Box 213,

Tel. [phone], Fax. [phone]

Belgium: Postbus 90050, 5600 PB EINDHOVEN, The Netherlands,

Tel. [phone], Fax. [phone]

Brazil: Rua do Rocio 220 - 5

th

floor, Suite 51,
CEP: 04552-903-SÃO PAULO-SP, Brazil.
P.O. Box 7383 (01064-970).
Tel. [phone], Fax. [phone]

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS:

Tel. [phone], Fax. [phone]

Chile: Av. Santa Maria 0760, SANTIAGO,

Tel. [phone], Fax. [phone]

Colombia: IPRELENSO LTDA, Carrera 21 No. 56-17,

77621 BOGOTA, Tel. [phone],
Fax. [phone]

Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,

Tel. [phone], Fax. [phone]

Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. [phone], Fax. [phone]

France: 4 Rue du Port-aux-Vins, BP317,

92156 SURESNES Cedex,
Tel. [phone], Fax. [phone]

Germany: P.O. Box 10 63 23, 20043 HAMBURG,

Tel. [phone], Fax. [phone].

Greece: No. 15, 25th March Street, GR 17778 TAVROS,

Tel. [phone] 911, Fax. [phone]

Hong Kong: PHILIPS HONG KONG Ltd., 15/F Philips Ind. Bldg.,

24-28 Kung Yip St., KWAI CHUNG, N.T.,
Tel. [phone], Fax. [phone] 6009

India: Philips INDIA Ltd, Shivsagar Estate, A Block ,

Dr. Annie Besant Rd. Worli, Bombay 400 018
Tel. [phone], Fax. [phone]

Indonesia: Philips House, Jalan H.R. Rasuna Said Kav. 3-4,

P.O. Box 4252, JAKARTA 12950,
Tel. [phone], Fax. [phone]

Ireland: Newstead, Clonskeagh, DUBLIN 14,

Tel. [phone], Fax. [phone]

Italy: PHILIPS SEMICONDUCTORS S.r.l.,

Piazza IV Novembre 3, 20124 MILANO,
Tel. [phone], Fax. [phone]

Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,

Tel. [phone], Fax. [phone]

Korea: (Republic of) Philips House, 260-199 Itaewon-dong,

Yongsan-ku, SEOUL, Tel. [phone], Fax. [phone]

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA,

SELANGOR, Tel. [phone], Fax. [phone]

Mexico: 5900 Gateway East, Suite 200, EL PASO, TX 79905,

Tel. [phone], Fax. [phone]

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB

Tel. [phone], Fax. [phone]

New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. [phone], Fax. [phone]

Norway: Box 1, Manglerud 0612, OSLO,

Tel. [phone], Fax. [phone]

Pakistan: Philips Electrical Industries of Pakistan Ltd.,

Exchange Bldg. ST-2/A, Block 9, KDA Scheme 5, Clifton,
KARACHI 75600, Tel. [phone],
Fax. [phone].

Philippines: PHILIPS SEMICONDUCTORS PHILIPPINES Inc,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. [phone], Fax. [phone]

Portugal: PHILIPS PORTUGUESA, S.A.,

Rua dr. António Loureiro Borges 5, Arquiparque - Miraflores,
Apartado 300, 2795 LINDA-A-VELHA,
Tel. [phone], Fax. [phone].

Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,

Tel. [phone], Fax. [phone]

South Africa: S.A. PHILIPS Pty Ltd.,

195-215 Main Road Martindale, 2092 JOHANNESBURG,
P.O. Box 7430 Johannesburg 2000,
Tel. [phone], Fax. [phone].

Spain: Balmes 22, 08007 BARCELONA,

Tel. [phone], Fax. [phone]

Sweden: Kottbygatan 7, Akalla. S-164 85 STOCKHOLM,

Tel. [phone], Fax. [phone]

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,

Tel. [phone], Fax. [phone]

Taiwan: PHILIPS TAIWAN Ltd., 23-30F, 66, Chung Hsiao West

Road, Sec. 1. Taipeh, Taiwan ROC, P.O. Box 22978,
TAIPEI 100, Tel. [phone], Fax. [phone].

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,

209/2 Sanpavuth-Bangna Road Prakanong,
Bangkok 10260, THAILAND,
Tel. [phone], Fax. [phone].

Turkey:Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,

Tel. [phone], Fax. [phone]

United Kingdom: Philips Semiconductors LTD.,

276 Bath Road, Hayes, MIDDLESEX UB3 5BX,
Tel. [phone], Fax. [phone]

United States:811 East Arques Avenue, SUNNYVALE,

CA 94088-3409, Tel. [phone], Fax. [phone]

Uruguay: Coronel Mora 433, MONTEVIDEO,

Tel. [phone], Fax. [phone]

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. [phone]

SCD38 © Philips Electronics N.V. 1995

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