ICS9120-09

The ICS9120-09 are high performance frequency generators designed to support stereo audio codec systems. It offers both clock frequencies required by stereo codecs such as the CS4231 and the AD1848 plus the clock needed for the OPL4 FM synthesizer. These frequencies can be synthesized from the existing 14.318 MHz system clock or from the on-chip oscillator using a 14.318 MHz crystal (-08 only).

High accuracy, low jitter PLLs meet the 0.125% frequency tolerance and -96dB signal-to-noise ratios required by 16 bit audio systems. Fast output clock edge rates minimize board induced jitter.

Unlike competitive devices, the ICS9120-08 and ICS9120-09 operate over the entire 3.0-5.5V range, with the -09 providing power-down to minimize energy consumption.