saa5700 NXP Semiconductors, saa5700 Datasheet - Page 3

• Manufacturer Part Number: saa5700
• Description: Chinese Character System Teletext Ccst Decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
1997 May 16
handbook, full pagewidth
Chinese Character System Teletext
(CCST) decoder
RA10 to RA0
RD7 to RD0
ROMCS
BLACK
CVBS
REF
I REF
RAS
STN
CAS
WE
4
5
10
6
7
27
42
53
44
54, 41, 40,
38 to 36,
32 to 28
55 to 58,
52, 51,
47, 46
V DDD1 V SS1 V DDD2 V SS2 V SS3 V DDX V SSO V DDA V SSA
35
ACQUISITION
SEPARATOR
INTERFACE
SAA5700
MEMORY
PACKET
BUFFER
33
SYNC
DATA
48
Fig.1 Block diagram.
49
12 MHz
FRONT END
BUS
3
2
19
DISPLAY SECTION
ACQUISITION
PROCESSOR
OSCILLATOR
GENERATOR
AND CLOCK
INTERFACE
20
DISPLAY
DISPLAY
TIMING
TIMING
BLOCK
9
24 MHz
8
6 MHz
V SS
MGG539
14,16,
26
64
59
63
60
61
62
21
22
23
24
17
18
25
1
Preliminary specification
RESET
DCL
DDA
R
B
BLAN
LFB
FFB/STTV
OSCOUT
OSCIN
SCL
SDA
G
ODD/EVEN
SAA5700