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SAA5261PS

10-page intelligent teletext decoders

Philips Electronics 

Philips Semiconductors

Product specification

10-page intelligent teletext decoders SAA5261; SAA5262; SAA5263

FEATURES

SAA5261, SAA5262 and SAA5263

• Complete 625-line teletext decoder in a single

integrated circuit thereby reducing printed-circuit board

area and cost

• Automatic detection of transmitted pages so that only

existing pages will be selected by page-up and

page-down once inventory validated

• Automatic detection of transmitted Fastext links or

service information (packet 8/30)

• On-screen display for user interface (menus, etc.) using

teletext and dedicated menu icons

• Video Programming System (VPS) decoding

• Wide Screen Signalling (WSS) decoding

• 8-page Fastext decoder

• 6-page TOP decoder in addition to capture of Basic TOP

Table (BTT) and 3 Additional Information Table (AIT)

pages

• 4-page user defined list mode

• Yugoslavian, Cyrillic, Greek/Turkish, Thai,

Arabic/Hebrew, Pan-European and

Arabic/English/French language coverage

• High level command interface via I2C-bus giving easy

control from a low software overhead

• High level command interface is backward compatible to

SAFARI interface

• 625 and 525 line display

• RGB interface to standard colour decoder ICs, push-pull

output drive

• Versatile 8-bit open-drain I/O expander

• Single 12 MHz crystal oscillator for reduced cost

• +5 V power supply.

SAA5262 and SAA5263

• Automatic Channel Installation (ACI)

• Enhanced SAFARI interface providing additional

commands.

SAA5263

• Electronic Programme Guide (EPG) feature.

GENERAL DESCRIPTION

The SAA526xPS ICs are single-chip 10-page 625-line

World System Teletext (WST) decoders with a high level

command interface, SAFARI compatible.

It has been designed so that the overall system cost is kept

to a minimum. This has been achieved through the

capability of the device to be driven from a single +5 V

power supply, low cost 12 MHz crystal oscillator and the

high level command interface, which offers the benefit of

low software overhead in the TV microcontroller.

The SAA526xPS offers automatic detection of Fastext or

TOP transmissions. The device also incorporates a facility

to detect the pages in the transmission, which allows only

transmitted pages to be selected by page-up and

page-down.

SAA5262 and SAA5263 provide Automatic Channel

Installation (ACI) information.

SAA5263 provides access to Electronic Programme Guide

(EPG) information.

1998 Apr 22

2

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