Overview

CMI8768 is the first high performance (SNR~100dB) 8CH PCI integrated sound chip compatible with PCI V.2.2 specification in the world. With 24bit/96K digital/analog playback capability and versatile driver support, CMI8768 is designed delicately for advanced consumer PC sound card/media center/mainboard/desktop/embedded system/server audio applications. Through integrating a full-duplex 8/2 CODEC and S/PDIF transmitter/receiver, CMI8768 consequently saves much BOM cost for customers. CMI8768, bundled with C-Media friendly and high add-on value driver, provides the most economic and ideal audio solution with the best value-price ratio.

Features

■ The global first 8CH single sound chip with embedded codec

■ Full-duplex 8CH DAC/2CH ADC

■ Supports 96K/24bit playback; 48K/16bit recording

■ CE level high-quality Signal-to-Noise Ratio (SNR)~ 100dB

■ Integrated S/PDIF transmitter supports 44.1k/48k/96KHz sample-rate and 16/24bits resolution

■ PCI Rev. 2.2 compliant with bus mastering modes

■ Supports the latest Dolby® Digital EX and DTS® ES 6.1/7.1CH DVD soundtrack playback

■ Two S/PDIF inputs for optical and coaxial connectors individually

■ Built-in earphone buffer at Front-Out pins (32Ω loading)

■ One GPIO (General purpose I/O) support

■ External EEPROM Interface for SID R/W purpose

■ Supports MPU401 MIDI UART port

■ DirectSound™ 3 HW acceleration compliant

■ Power On/Off anti-pop circuit reference design

■ ACPI compliant power down management

■ Zoomed Video Port support

■ Industrial standard QFP-128 package

■ Almost pin-to-pin compatible with CMI8738 series

■ Digital power = 3.3V & 5V, Analog power = 5V