OM8378 Overview
The OM8373 and OM8378 bine 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.
OM8378 Key Features
- 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 f
- 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, variable positive/negative overs
- Tint control for all internal and external signals
- Integrated chroma band-pass filter with switchable centre frequency