saa5261 NXP Semiconductors, saa5261 Datasheet - Page 4

• Manufacturer Part Number: saa5261
• Description: Saa5261; Saa5262; Saa5263 10-page Intelligent Teletext Decoders
• Manufacturer: NXP Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
1998 Apr 22
handbook, full pagewidth
10-page intelligent teletext decoders
FRAME
RESET
I ref
PL
26
43
27
21
V SSA
REGENERATOR
DATA SLICER
REFERENCE
GENERATOR
ACQUISITION
CONVERTER
AND CLOCK
SERIAL-TO-
22
POWER-ON
DECODING
PARALLEL
ANALOG-
DECODER
TELETEXT
HAMMING
24 TO 18
RESET
V SSD1
AND
13
V SSD2
28
VDS
35
PON RGBREF
30 29
COR
CVBS1
DISPLAY
CONVERTER
PROCESSING
ACQUISITION
TO-DIGITAL
TELETEXT
CONTROL
ANALOG-
DECODING
PACKET 26
23
ENGINE
31 32 33 34
VPS
OR
Fig.1 Block diagram.
AND
VPS
B
SAA526xPS
CVBS2
G
24
R
4
AND TIMING
REFRESH
INPUT CLAMP
ACQUISITION
SEPARATOR
DRAM
DECODING
AND SYNC
WSS
AND
SAA5261; SAA5262; SAA5263
V DDA
38
V DDD(T)
XTALO
CONTROLLER
GENERATOR
GENERATOR
INTERFACE
INTERFACE
39
42
MEMORY
DISPLAY
SYSTEM
I
CLOCK
12 MHz
CLOCK
2
10 k
C-BUS
DRAM
V DDD(M )
XTALI
8
41
44
9 to 12
1-8
52
20
16
48
17
47
18
46
19
45
51
15
14
50
49
25
36
37
40
Product specification
MGL418
res
E/W
PDI
SA
DISLCBD
FP
DIS8/30
HSMODE
DISDSR
VSMODE
PUINL
V0-V7
ME8/30T
SDA1
SCL1
SDA2
SCL2
BLACK
HSYNC
VSYNC
OSCGND