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STV5248 Datasheet

  • STV5248

  • MONOCHIP TELETEXT AND VPS DECODER WITH 8 INTEGRATED PAGES

  • 30頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STV5348
STV5348/H - STV5348/T
MONOCHIP TELETEXT AND VPS DECODER
WITH 8 INTEGRATED PAGES
FEATURES SUMMARY
鈻?/div>
COMPLETE TELETEXT AND VPS DECODER
INCLUDING AN 8 PAGE MEMORY ON A
SINGLE CHIP
鈻?/div>
Figure 1. Package
UPWARD SOFTWARE COMPATIBLE WITH
PREVIOUS ST鈥檚 MULTICHIP SOLUTIONS
(SAA5231, SDA5243, STV5345)
PERFORM PDC SYSTEM A (VPS) AND PDC
SYSTEM B (8/30/2) DATA STORAGE
SEPARATELY
DEDICATED "ERROR FREE" OUTPUT FOR
VALID PDC DATA
INDICATION OF LINE 23 FOR EXTERNAL
USE
SINGLE +5V SUPPLY VOLTAGE
SINGLE 13.875MHz CRYSTAL
REDUCED SET OF EXTERNAL
COMPONENTS, NO EXTERNAL
ADJUSTMENT
OPTIMIZED NUMBER OF DIGITAL SIGNALS
REDUCING EMC RADIATION
HIGH DENSITY CMOS TECHNOLOGY
DIGITAL DATA SLICER AND DISPLAY
CLOCK PHASE LOCK LOOP
28 PIN DIP & SO PACKAGE
CVBS
MA/SL
V
DDA
POL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
鈻?/div>
PDIP28
(Plastic Package)
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
SO28
(Plastic Package)
鈻?/div>
Figure 2. Pin Connections
CBLK
TEST
V
SSA
V
SSO
XTI
XTO
V
DDD
VCR/TV
RESERVED
DV
L23
SDA
SCL
Y
鈻?/div>
鈻?/div>
鈻?/div>
DESCRIPTION
The STV5348 decoder is a computer-controlled
teletext device including an 8 page internal mem-
ory. Data slicing and capturing extracts the teletext
information embedded in the composite video sig-
nal. Control is accomplished via a two wire serial
I
2
C bus 廬. Chip address is 22h. Internal ROM pro-
vides a character set suitable to display text using
up to seven national languages. Hardware and
software features allow selectable master/slave
synchronization configurations. The STV5348
also supports facilities for reception and display of
current level protocol data.
STTV/LFB
FFB
V
SSD
R
G
B
RGB REF
BLAN
COR
ODD/EVEN
REV. 2
May 2004
1/30

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