DatasheetsPDF.com

SAA5250

NXP
Part Number SAA5250
Manufacturer NXP
Description Interface for data acquisition and control for multi-standard teletext systems
Published Apr 8, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET SAA5250 Interface for data acquisition and control (for multi-standard teletext systems...
Datasheet PDF File SAA5250 PDF File

SAA5250
SAA5250


Overview
INTEGRATED CIRCUITS DATA SHEET SAA5250 Interface for data acquisition and control (for multi-standard teletext systems) Product specification File under Integrated Circuits, IC02 January 1987 Philips Semiconductors Product specification Interface for data acquisition and control (for multi-standard teletext systems) GENERAL DESCRIPTION SAA5250 The SAA5250 is a CMOS Interface for Data Acquisition and Control (CIDAC) designed for use in conjunction with the Video Input Processor (SAA5230) in a multi-standard teletext decoder.
The device retrieves data from a user selected channel (channel demultiplexer), as well as providing control signals and consecutive addressing space necessary to drive a 2 K bytes buffer memory.
The system operates in accordance with the following transmission standards: • French Didon Antiope specification D2 A4-2 (DIDON) • North American Broadcast Teletext specification (NABTS) • U.
K.
teletext (CEEFAX) Features • 7,5 MHz maximum conversion rate • Three prefixes; DIDON, NABTS and U.
K.
teletext (CEEFAX) • Mode without prefix • Internal calculation of the validation (VAL) and colour burst blanking (CBB) signals, if programmed • Programmable framing code and channel numbers • Error parity calculation or not (odd parity) • Hamming processing of the prefix byte • Full channel or VBI reception • Slow/fast mode (detection of page flags or not) • Maximum/default format up to 63 bytes • Addressing space of 2 K bytes of the static memory • Multiplexed address/data information is compatible with Motorola or Intel microcontrollers • CIDAC is ‘MOTEL’ compatible PACKAGE OUTLINES SAA5250P: 40-lead DIL; plastic (SOT129); SOT129-1; 1996 December 02.
SAA5250T: 40-lead mini-pack; plastic (VSO40); SOT158-1; 1996 December 02.
January 1987 2 k, full pagewidth January 1987 PAGE DETECTION 9-16 SEQUENCE CONTROLLER CHANNEL COMPARATOR 17 HAMMING CORRECTOR 18 INTERFACE 21 19 ALE CS RD WR PROGRAM REGISTER 8 DB7 to DB0 REGISTER Philips Semiconductors FRAMING CODE...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)