CMI8768 Datasheet, PDF (6/17 Pages) C-Media Electronics – PCI 8CH Integrated Sound Chip

1. Features
PCI 8CH Integrated Sound Chip
CMI8768 Datasheet Rev 1.0
„ 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
Valuable S/W:
„ C-Media Xear 3D™ 7.1 Virtual Speaker SHIFTER technology
„ Interesting Magic Voice^TM feature to disguise users’ voice tone in all IP phones
(Skype, MSN, Yahoo,…), online games, messenger, and Internet
DJ/broadcasting applications
„ Unique Karaoke functionality: Mic Echo, Key-shifting, Vocal Cancellation
„ CRL3D^® HRTF 3D positional sound enhancement from Sensaura^® supporting
multi-drive 7.1, EnvironmentFX, ZoomFX, MacroFX, etc.
„ Supports most industrial standards of PC 3D sound for gaming, including EAX™
1.0&2.0, A3D™ 1.0, and DirectSound™ 3 SW
„ 10-band Equalizer with 12 preset modes; 27 global environment effects
„ Support 7.1 CH digital audio playback for WinXP, 2K, ME, 98SE (Microsoft^®
DirectX V.9.0 above is required)
„ WinCE driver and Linux OSS driver available
Copyright 2004-2005 © C-Media Electronics Inc.
Page 4