TDA9880 Просмотр технического описания (PDF) - Philips Electronics

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TDA9880

Alignment-free multistandard vision and FM sound IF-PLL demodulator

Philips Electronics 

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TAGC

14

RTOP

TOP

3

CVAGC

VAGC

20

external reference

or 4 MHz crystal

REF

15

trap disable

switch

AFC

19

AGC

RC VCO

DIGITAL VCO CONTROL AFC DETECTOR

CTR

TR

12

VIF1 1

VIF2 2

TDA9880

VIF-PLL

SUPPLY

17 16

VP GND

LOGIC

18

11

VPLL SIO

9

10

S0 S1

sound

intercarrier

output

VIF-PLL

filter

SOUND TRAPS

4.5 to 6.5 MHz

13 CVBS video output 2 V (p-p)

[1.1 V (p-p) without trap]

8 AUD

NARROW-BAND FM-PLL DETECTOR

audio output

7

FAGC

4

FMPLL

5

DEEM

6

AFD

CFAGC

CDEEM CAFD

FM-PLL de-emphasis decoupling

filter

MHB506

Fig.1 Block diagram.

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