The ICS9120-08 and ICS 9120-09 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).