AV9173-01CS08

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. A separated, negative-going sync input reference pulse is required at pin 2 (I N). The AV9173-01 is also suited for other clock recovery applications in such areas as data communications. Features Phase-detector/VCO circuit block Ideal for genlock system Reference clock range 25 kHz to 1 MHz for full output clock range Input clocks down to 12 kHz possible with restricted output conditions (see Table 1) Output clock range 1.25 to 75MHz On-chip loop filter Single 5 volt power supply Low power CMOS technology Small 8-pin DIP or SOIC package Block Diagram AV9173-01RevC052197P ICS reserves the right to make changes in the device data identified in this publication without further notice. ICS advises its customers to obtain the latest version of all de...