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TDA956xH

Philips
Part Number TDA956xH
Manufacturer Philips
Description TV Signal Processor
Published Nov 19, 2008
Detailed Description INTEGRATED CIRCUITS DEVICE DATASPECIFICATION SHEET www.DataSheet4U.com TDA955X/6X/8X H/N1 series TV signal processor-T...
Datasheet PDF File TDA956xH PDF File

TDA956xH
TDA956xH

Overview
INTEGRATED CIRCUITS DEVICE DATASPECIFICATION SHEET www.
DataSheet4U.
com TDA955X/6X/8X H/N1 series TV signal processor-Teletext decoder with embedded µ-Controller Tentative Device Specification File under Integrated Circuits, Version: 1.
6 2000 Jun 22 Previous version: 2000 Apr 06 Philips Semiconductors Tentative Device Specification TV signal processor-Teletext decoder with embedded µ-Controller GENERAL DESCRIPTION The various versions of the TDA955X/6X/8X H/N1 series combine the functions of a video processor together with a µ-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.
www.
DataSheet4U.
com The ICs have supply voltages of 8 V and 3.
3 V and they are mounted in a QFP 80 envelope.
The features are given in the following feature list.
The differences between the various ICs are given in the table on page 4.
FEATURES TV-signal processor • Multi-standard vision IF circuit with alignment-free PLL demodulator • Internal (switchable) time-constant for the IF-AGC circuit • The QSS and mono FM functionality are both available so that an FM/AM TV receiver can be built without the use of additional ICs • The mono intercarrier sound circuit has 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.
• The FM-PLL demodulator can be set to centre frequencies of 4.
74/5.
74 MHz so that a second sound channel can be demodulated.
In such an application it is necessary that an external bandpass filter is inserted.
• The vision IF and mono intercarrier sound circuit can be used for the demodulation of FM radio signals • Video switch with 2 external CVBS inputs and a CVBS output.
One of the CVBS inputs can be used as Y/C input...


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