TDA9801T 参数 Datasheet PDF下载

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1999 Aug 26

VP = 5 V (9 V)

VP

20

GND 18

INTERNAL

REFERENCE

VOLTAGE

TRAVELLING

WAVE

DIVIDER

TPLL

6

3-STAGE

IF-AMPLIFIER

VIF1 1

FREQUENCY

DETECTOR

AND PHASE

DETECTOR

VIF2 2

BLOCK DIAGRAM

Philips Semiconductors

Single standard VIF-PLL demodulator

and FM-PLL detector

2fPC

VCO2

17

VCO1

16

AFC

15

9 AF

10 DAF

CDAF

FM-PLL

DETECTOR

VIDEO

DEMODULATOR

VIDEO

AMPLIFIER

VCO

AFC

DETECTOR

AF

AMPLIFIER

ADJ 4

TDA9801

sound

mute

TUNER

AGC

IF

AGC

AGC

DETECTOR

LIMITER

AMPLIFIER

4

3

TOP

takeover

point

R TOP

tuner AGC

12

TAGC

19

AGC

CAGC

5

MUTE

sound

mute

switch

BUFFER AMPLIFIER

AND NOISE CLIPPER

8

n.c.

13

VSO

14

VI

SOUND

TRAP

1 V (p-p)

11

SI

7

CVBS

2 V (p-p)

SOUND

FILTER

video and

intercarrier

MHA879

Product specification

TDA9801

Fig.1 Block diagram.