SAA5254 데이터 시트보기 (PDF) - Philips Electronics
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SAA5254 Datasheet PDF : 36 Pages
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Philips Semiconductors
Integrated VIP and teletext decoder
(IVT1.1X)
BLOCK DIAGRAM
Preliminary specification
SAA5254
Y BLAN COR RGBREF RGB ODD/EVEN
23
19
21
18
15 to 17 22
DISPLAY
HAMMING
CHECKER
AND
PACKET 26
PROCESSING
ENGINE
DATA
SLICER
AND
CLOCK
REGENERATOR
TELETEXT
ACQUISITION
AND
DECODING
VSS1
REF
DCVBS
5
ANALOG
TO
DIGITAL
CONVERTER
6
TIMING
CHAIN
PAGE
MEMORY
25
I2 C-BUS
INTERFACE 24
SDA
SCL
1
10
SAA5254
14
20
VDD1
VDD2
VSS2
VSS3
OSCOUT
2
3
OSCIN
CRYSTAL
OSCILLATOR
4
OSCGND
INPUT
CLAMP
AND SYNC
SEPARATOR
798
11
BLACK IREF CVBS POL
DISPLAY
CLOCK
PHASE
LOCKED
LOOP
13
12
MLB207
VCR/FFB STTV/LFB
Fig.1 Block diagram; SOT129 (DIP40).
1996 Nov 07
3
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