TDA9821 데이터 시트보기 (PDF) - Philips Electronics

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TDA9821

Dual channel TV FM intercarrier sound demodulator

Philips Electronics 

Philips Semiconductors

Dual channel TV FM intercarrier

sound demodulator

BLOCK DIAGRAM

Product specification

TDA9821

handbook, full pagewidth

5.5 MHz (B/G)

1

intercarrier

5.74 MHz (B/G)

15

TDA9821

7-STAGE

LIMITER

AMPLIFIER 1

7-STAGE

LIMITER

AMPLIFIER 2

Rs (1)

9

8

V AF1

VCO 1

VCO 2

SUPPLY

13 14 12 11

mute

VP =

4.5 to 8.8 V

VCO ref

optional stereo

channel separation

adjustment

(1)

Rpot

7

V AF2

10

MHA424

(1) Resistor and potentiometer between capacitor and earth are inserted if adjustment of stereo channel separation is required.

Fig.1 Block diagram.

1996 Nov 20

3

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