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Integrated Circuit Systems, Inc.
AV9173-01
Video Genlock PLL
General Description
The AV9173-01 provides the analog circuit blocks required for implementing a video genlock dot (pixel) clock generator. It contains a phase detector, charge pump, loop filter, and voltage-controlled oscillator (VCO). By grouping these critical analog blocks into one IC and utilizing external digital functions, performance and design flexibility are optimized as are development time and system cost. When used with an external clock divider, the AV9173-01 forms a Phase-Locked Loop configured as a frequency synthesizer. The AV9173-01 is designed to accept video horizontal synchronization (h-sync) pulses and produce a video dot clock.