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TEA0679

I2C-bus controlled dual Dolby* B-type noise reduction circuit for playback applications

Philips Electronics 

Philips Semiconductors

I2C-bus controlled dual Dolby* B-type noise

reduction circuit for playback applications

Product specification

TEA0679T

PINNING

SYMBOL PIN

DESCRIPTION

MAD

1 programmable address bit

BSC

2 blank skip reference capacitance

TD

3 delay time constant

BTC

4 blank skip integration capacitance

EQS

5 equalization switch input (optional)

OUTA

6 output channel A

INTA

7 integrating filter channel A

CONTRA 8 control voltage channel A

HPA

9 high-pass filter channel A

SCA

10 side chain channel A

EQA

11 equalizing output channel A

EQFA

12 equalizing input channel A

VCC

INA1

13 supply voltage

14 input channel A1 (forward or reverse)

Vref

INA2

15 reference voltage

16 input channel A2 (reverse or forward)

INB2

17 input channel B2 (reverse or forward)

HS

18 head switch input (optional)

INB1

19 input channel B1 (forward or reverse)

AGND

20 analog ground

EQFB

21 equalizing input channel B

EQB

22 equalizing output channel B

SCB

23 side chain channel B

HPB

24 high-pass filter channel B

CONTRB 25 control voltage channel B

INTB

26 integrating filter channel B

OUTB

27 output channel B

AMS

28

Automatic Music Search (AMS)

output

DGND

29 digital ground

SCL

30 serial clock input

SDA

31 serial data input/output

BEN

32 bus enable

handbook, halfpage

MAD 1

32 BEN

BSC 2

31 SDA

TD 3

30 SCL

BTC 4

29 DGND

EQS 5

28 AMS

OUTA 6

INTA 7

27 OUTB

26 INTB

CONTRA 8

25 CONTRB

TEA0679T

HPA 9

24 HPB

SCA 10

EQA 11

23 SCB

22 EQB

EQFA 12

VCC 13

INA1 14

Vref 15

INA2 16

21 EQFB

20 AGND

19 INB1

18 HS

17 INB2

MHB118

Fig.2 Pin configuration.

1998 Nov 12

4

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