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TDA9847

TV and VTR stereo/dual sound processor with digital identification

Philips Electronics 

Philips Semiconductors

TV and VTR stereo/dual sound processor

with digital identification

PINNING

SYMBOL PIN

DESCRIPTION

C1

1 control input Port C1

C2

2 control input Port C2

C4

3 control input Port C4

CAGC

CLP

CDCL

Vi pil

Cref

Vi1

4 AGC capacitor of pilot frequency amplifier

5 identification low-pass capacitor

6 DC loop capacitor

7 pilot frequency input voltage

8 capacitor of reference voltage (1⁄2VP)

9 AF input signal voltage 1 [from sound carrier 1 or

AM sound (standard L)]

Vi2

Vi3

Vi4

Vo2

Vo1

Vo4

Vo3

CD1

LEDDU

10 AF input signal voltage 2 (from sound carrier 2)

11 AF input signal voltage 3 (SCART)

12 AF input signal voltage 4 (SCART)

13 AF output signal voltage 2 (main)

14 AF output signal voltage 1 (main)

15 AF output signal voltage 4 (SCART)

16 AF output signal voltage 3 (SCART)

17 50 µs de-emphasis capacitor of AF Channel 1

18 LED (dual)

LEDST

19 LED (stereo)

GND

CD2

VP

XTAL

20 ground (0 V)

21 50 µs de-emphasis capacitor of AF Channel 2

22 supply voltage (5 to 8 V)

23 10 MHz crystal input

C3

24 control input Port C3

Preliminary specification

TDA9847

C1 1

24 C3

C2 2

23 XTAL

C4 3

22 VP

CAGC 4

21 CD2

CLP 5

20 GND

CDCL 6

Vi pil 7

19 LEDST

TDA9847

18 LEDDU

Cref 8

Vi1 9

Vi2 10

Vi3 11

Vi4 12

17 CD1

16 Vo3

15 Vo4

14 Vo1

13 Vo2

MED805

Fig.3 Pin configuration.

1995 May 23

5

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