TDA9144 Ver la hoja de datos (PDF) - Philips Electronics

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TDA9144

I2C-bus controlled, alignment-free PAL/NTSC/SECAM decoder/sync processor with PALplus helper demodulator

Philips Electronics 

22

ADDR (CVBS)

15

I/O PORT

16

O PORT/LLC

SDA SCL

6

5

I2C-BUS

LCA

VCC

HPLL

SC

7

VERTICAL

SYNC

SEPARATOR

24

10

VA

TIMING HA

GENERATOR CLP

SYNC

SEPARATOR

HORIZONTAL

PLL

26

Y/CVBS

Y CLAMP

SECAM

CLOCHE

VA CLP/HA

11 17

R GB

21 20 19

F Uout Vout Yout

18 14 13 12

ECL

TRAP

FILTER

TUNING

MATRIX

ECL

YH1−YH0

DELAY

SECAM

DEMOD

SWITCH

TB YD3−YD0 BPS

3

Uin

4

Vin

DELAY

2

2

SWITCH

helper

32

SECref

1

−(R−Y)

2 −(B−Y)

25

C

CHROMA

SWITCH

INA-INB

ACC

CHROMA

BANDPASS

CHROMA

PLL

HUE

8

DEC

BIAS

9

DGND

28

FILTref

27

AGND

TDA9144

ECMB

29

30

31

CPLL XTAL XTAL2

FSC

BUFFER

23

Fscomb

PAL/NTSC

DEMOD

IDENT

SYSTEM

MBG897

Fig.1 Block diagram.

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