This post describes for the processor.
The Part Number is TDA9381PS.
The package is 64pin DIP type.
The function of this semiconductor is TV signal processor-Teletext decoder.
The manufacturer of this part is philips.
See the preview image and the PDF file for more information.
1 page
Description
The various versions of the TDA9381 series combine the functions of a TV signal processor together with a m-Controller and US Closed Caption decoder. Most versions have a Teletext decoder on board. The Teletext decoder has an internal RAM memory for 1or 10 page text. The ICs are intended to be used in economy television receivers with 90° and 110° picture tubes.
Features
1. TV-signal processor
(1) Multi-standard vision IF circuit with alignment-free PLL demodulator
(2) Internal (switchable) time-constant for the IF-AGC circuit
(3) A choice can be made between versions with mono intercarrier sound FM demodulator and versions with QSS IF amplifier.
(4) The mono intercarrier sound versions have a selective FM-PLL demodulator which can be switched to the different FM sound frequencies (4.5/5.5/6.0/6.5 MHz). The quality of this system is such that the external band-pass filters can be omitted.
(5) Source selection between ‘internal’ CVBS and external CVBS or Y/C signals
(6) Integrated chrominance trap circuit
Pinouts
Display
• Teletext and Enhanced OSD modes
• Features of level 1.5 WST and US Close Caption
• Serial and Parallel Display Attributes
• Single/Double/Quadruple Width and Height for characters
• Scrolling of display region
• Variable flash rate controlled by software
• Enhanced display features including overlining, underlining and italics
• Soft colours using CLUT with 4096 colour palette
Other data sheets are available within the file:
TDA9350, TDA9352, TDA9353, TDA9360, TDA9361, TDA9362, TDA9363,
TDA9364, TDA9365, TDA9366, TDA9367, TDA9380, TDA9382, TDA9383,
TDA9384, TDA9385, TDA9386, TDA9387, TDA9388, TDA9389
TDA9381 PDF Datasheet
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