The STAC9220/9221/9223 are high fidelity, 8-channel audio CODECs compatible with Intel's High Definition (HD) Audio Interface. The STAC9220/9221/9223 CODECs provide stereo 24-bit resolution with sample rates up to 192 KHz. SPDIF I/O provides connectivity to consumer electronic equipment. The STAC9221 CODEC incorporates IDT's proprietary technology to achieve an estimated DAC SNR in excess of 105dB. The STAC9220/9223 CODECs incorporate IDT's proprietary technology to achieve an estimated DAC SNR in excess of 95dB. The STAC9223 has all of the features of the STAC9220 plus