STV5248 datasheet(1/30 Pages) STMICROELECTRONICS

Part #	STV5248

Description	MONOCHIP TELETEXT AND VPS DECODER WITH 8 INTEGRATED PAGES

PDF	30 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 30 page

1/30

May 2004

STV5348

STV5348/H - STV5348/T

MONOCHIP TELETEXT AND VPS DECODER

WITH 8 INTEGRATED PAGES

REV. 2

FEATURES SUMMARY

■ COMPLETE TELETEXT AND VPS DECODER

INCLUDING AN 8 PAGE MEMORY ON A

SINGLE CHIP

■ UPWARD SOFTWARE COMPATIBLE WITH

PREVIOUS ST’s 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

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

I2C bus ®. 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.

Figure 1. Package

Figure 2. Pin Connections

PDIP28 (Plastic Package)

SO28 (Plastic Package)

1

2

3

4

5

6

28

27

26

25

24

23

7

8

9

22

21

20

10

19

11

18

12

17

13

16

14

15

R

B

G

VDDA

CVBS

MA/SL

POL

STTV/LFB

VSSD

FFB

RGB REF

BLAN

COR

ODD/EVEN

VSSA

VSSO

VDDD

CBLK

TEST

XTI

XTO

VCR/TV

RESERVED

DV

L23

SDA

SCL

Y

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