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AN Integrated Circuit for Chrominance Signal Processing in Color-TV Receivers

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1 Author(s)
Kelson, G. ; Signetics Corporation

The development of a multifunction integrated circuit which processes the detected video signals in a NTSC color television is described. A first generation IC has been produced which regenerates the color subcarrier using APC loop techniques. A gain controllable, chroma amplifier is also included on the chip. This IC represents the first step in a program to develop a high performance, low cost, single chip chroma processing system. Careful consideration has been given to system partitioning to maximize functional capabilities while maintaining flexibility and low cost. A detailed description of the subcarrier regenerator and chroma amplifier is given in Section II and Section III. The overall circuit organization is discussed in Section IV.

Published in:

Broadcast and Television Receivers, IEEE Transactions on  (Volume:BTR-16 ,  Issue: 3 )