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

1. Features
PCI 8CH Integrated Sound Chip
CMI8768 Datasheet Rev 0.9
The global first 8CH single sound chip with embedded codec saving customer
total BOM cost
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
ACPI compliant power down management
Zoomed Video Port support
Industrial standard 128-lead QFP package
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
Sensaura^® CRL3D HRTF 3D positional sound enhancement with 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
Unique Karaoke functionality: Mic Echo, Key-shifting, Vocal Cancellation
Interesting Magic Voice^TM feature to change users’ voice tone for IP phone,
online games, and messenger applications
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.8.1 above is required)
Other oncoming features (ASIO driver, NR/AEC,…)
Copyright 2003-2004 © C-Media Electronics Inc.
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