SAA5249 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
SAA5249
Philips Electronics
SAA5249 Datasheet PDF : 44 Pages
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Philips Semiconductors
Integrated VIP and Teletext with
Background Memory Controller
BLOCK DIAGRAM
Preliminary specification
SAA5249
handbook, full pagewidth
46
SEL1
45
SEL2
A0 to A9 D0 to D3 R/W CAS0 CAS1 RAS
10
4
42
23 24
41
Y
BLANK
29
21
COR RGBREF R/G/B ODD/EVEN
3
27
20
17 to 19 28
DRAM INTERFACE
DISPLAY
VDD1 3
VDD2
VSSn
12
16, 22
38
SAA5249
DATA SLICER
AND
CLOCK
REGENERATOR
BACKGROUND
MEMORY
CONTROL
MUX
TELETEXT
ACQUISITION
AND
DECODING
HAMMING
CHECKER
AND
PACKET 26
PROCESSING
ENGINE
PAGE
MEMORY
VSS1 7
8
REF+
DCVBS
ANALOG
TO
DIGITAL
CONVERTER
TIMING
CHAIN
I2C - BUS
INTERFACE
31
SDA
30 SCL
4
OSCOUT
5
OSCIN
CRYSTAL
OSCILLATOR
6
GNDO
INPUT CLAMP
AND
SYNC
SEPARATOR
9
11 10
BLACK IREF CVBS
13
POL
DISPLAY
CLOCK
PHASE
LOCKED
LOOP
15
VCR/FFB
14
MLB304
STTV/LFB
1996 Nov 07
Fig.1 Block diagram for SOT240-1 (DIP48) package.
3
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