OM8373 Datasheet PDF

INTEGRATED CIRCUITS DEVICE DATASPECIFICATION SHEET OM8373; OM8378 TV signal processor- Closed Caption decoder with emb...

INTEGRATED CIRCUITS DEVICE DATASPECIFICATION SHEET OM8373; OM8378 TV signal processor- Closed Caption decoder with embedded µ-Controller Tentative Device Speciﬁcation File under Integrated Circuits, Version: 1.0 2004 Jan 15 Previous version: Philips Semiconductors Tentative Device Speciﬁcation TV signal processor- Closed Caption decoder with embedded µ-Controller GENERAL DESCRIPTION The OM8373 and OM8378 combine the functions of a video processor together with a µ-Controller and US Closed Caption decoder. The ICs are intended to be used in economy television receivers with 110° picture tubes. The ICs have supply voltages of 8 V and 3.3 V and they are mounted in a SDIP-64 envelope. The features are given in the following feature list. OM8373; OM8378 FEATURES TV-signal processor Vision IF circuit suitable for negative modulation with alignment-free PLL demodulator Internal (switchable) time-constant for the IF-AGC circuit 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. Source selection between the ‘internal’ CVBS and an external CVBS or Y/C signal 1 external audio input. Integrated chrominance trap circuit Integrated luminance delay line with adjustable delay time Picture improvement features with peaking (with switchable centre frequency, depeaking, vari...