TDA9809 데이터 시트보기 (PDF) - Philips Electronics

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TDA9809

Single standard multimedia IF-PLL and FM radio demodulator

Philips Electronics 

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TADJ CVAGC

TPLL

2 × fPC

20

5

TV/radio

tuner AGC

TAGC 12

TUNER VIF

AGC AGC

6

15

16

VIF

SAW

ViVIF1 1

ViVIF2 2

VIF AMPLIFIER

AND

AGC DETECTOR

FPLL

VCO

TWD

AND TV AFC

INTERCARRIER

MIXER

AFC/RIF

level

VP GND

14

TV AFC

DETECTOR

VIDEO

DEMODULATOR

AND AMPLIFIER

TDA9809M

19 17

INTERNAL

VOLTAGE

STABILIZER

13

SOUND video

TRAP 1 V (p-p)

1.1 V (p-p)

7

VoAF

ViRIF 4

10.7 MHz

LOGIC

3

LP0

RIF AMPLIFIER

AND

AGC DETECTOR

8

10

Vo(int)

soft mute

LP2

threshold

adjust

4.5 MHz

10.7 MHz

LEVEL DETECTOR

FM-PLL DEMODULATOR AND

AF SIGNAL PROCESSING

RADIO

AFC

11

ViFM

9

forced

mute

CDEC

18

10.7 MHz

ceramic

resonator

MHA957

Fig.1 Block diagram.

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