The 9173B provide the analog PLL circuit blocks to implement a frequency multiplier. Because the device is configured to use an external divider in the PLL clock feedback path, a large divider can be used to result in a large frequency multiplication ratio. This is useful when using a low frequency input clock to generate a high frequency output clock. The 9173B contains a phase detector, charge pump, loop filter, and voltage-controlled oscillator (VCO). The 674-01 can be used as the external feedback divider. A common application of the 9173B is the implementation of a video genlock circuit. Because of this, the 9173B inputs operate on the negative-going clock edge. The 9173B is pin and function compatible to the AV9173-01/15.


  • Phase-detector/VCO circuit block
  • Ideal for genlock system
  • Reference clock range 12 kHz to 1 MHz for full output clock range
  • Output clock range of 1.25 to 75 MHz (-01), and 0.625 to 37.5 MHz (-15). See "Allowable Input Frequency to Output Frequency" table for conditions
  • On-chip loop filter
  • Single 5 V power supply
  • Low power CMOS technology
  • 8-pin SOIC package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
9173B-01CS08LF Active DCG8 SOIC 8 C Yes Tube
9173B-01CS08LFT Active DCG8 SOIC 8 C Yes Reel
9173B-15CS08LF Active DCG8 SOIC 8 C Yes Tube
9173B-15CS08LFT Active DCG8 SOIC 8 C Yes Reel

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
9173B Datasheet Datasheet PDF 253 KB