TDA9850 Просмотр технического описания (PDF) - Philips Electronics

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TDA9850

I2C-bus controlled BTSC stereo/SAP decoder

Philips Electronics 

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C3

C2

C4

C5 Q1

R1

ceramic

resonator

C6

C7

13 14

15

16

17

STEREO DECODER

TDA9850

L+R

L − R/SAP

18

19

DEMATRIX

+

MODE

SELECT

27

stereo

OUTL mono

SAP

to

21

OUTR audio

processing

composite

baseband

11

input

C1

INPUT

LEVEL

ADJUST

NOISE

DETECTOR

STEREO/SAP

SWITCH

DE-EMPHASIS

22

C8

23

SAP without DBX

SAP

DEMODULATOR

DBX

STEREO

ADJUST

SUPPLY

7

LOGIC, I2C-

TRANSCEIVER 28

5

+

C16

4

C15

26 3 1

2 32 31 30 29 25 20

+

C17

R2

+++ + + +

C14

R3

C12 C11 C10 C9 CL CR

10 12 6 24

8

+

C19

+

C18

SDA

C13

only during VCC VCAP

Vref

adjustment

9

SCL

MAD

MHA010

Fig.1 Block, application and test diagram.

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