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參數(shù)資料
| 型號： | SAA5250 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Interface for data acquisition and control for multi-standard teletext systems |
| 中文描述： | 接口數(shù)據(jù)采集和控制的多標準圖文電視系統(tǒng) |
| 文件頁數(shù)： | 2/35頁 |
| 文件大?。?/td> | 173K |
| 代理商： | SAA5250 |
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January 1987
2
Philips Semiconductors
Product specification
Interface for data acquisition and control
(for multi-standard teletext systems)
SAA5250
GENERAL DESCRIPTION
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.
相關PDF資料 |
PDF描述 |
|---|---|
| SAA5250P | Interface for data acquisition and control for multi-standard teletext systems |
| SAA5250T | Interface for data acquisition and control for multi-standard teletext systems |
| SAA5252 | Line twenty-one acquisition and display LITOD |
| SAA5252P | Line twenty-one acquisition and display LITOD |
| SAA5252T | Line twenty-one acquisition and display LITOD |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5250P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Interface for data acquisition and control for multi-standard teletext systems |
| SAA5250T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Interface for data acquisition and control for multi-standard teletext systems |
| SAA5252 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Line twenty-one acquisition and display LITOD |
| SAA5252P | 制造商:NXP Semiconductors 功能描述:TELETEXT DECODER, PDIP24 |
| SAA5252T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Line twenty-one acquisition and display LITOD |
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