A Monolithic Wideband Synchronous Video Detector for Color TV
- 1 July 1969
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Broadcast and Television Receivers
- Vol. 15 (2) , 159-166
- https://doi.org/10.1109/tbtr1.1969.4320190
Abstract
This paper describes a low-level detector intended primarily for video IF detection in TV sets and designed specifically for integrated circuit fabrication. The device is a detector for amplitude modulated signals with up to 100% modulation, giving a low distortion high level, wideband output for small input signals. The detection is full-wave synchronous, or doubly-balanced, giving rejection of carrier components in the input signal. When used as a TV video IF detector, where the carrier frequency is in the 40-50 MHz range, the unwanted products of detection are high enough in frequency to be lost in the internal capacitance of the device, with the output comprising only the wanted video signal. A built-in suppression of chroma-sound intercarrier beat greatly eases the sound trapping requirements. The principle behind the device is not new, but the integrated circuit structure used is novel and has many advantages over a discrete approach.Keywords
This publication has 3 references indexed in Scilit:
- A high-performance monolithic IF amplifier incorporating electronic gain controlIEEE Journal of Solid-State Circuits, 1968
- A Differential Dual Integrated Circuit Video If with Built-in AGC for Color TelevisionIEEE Transactions on Broadcast and Television Receivers, 1968
- Applications of a monolithic analog multiplierPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1968