DATASHEET
4-CHANNEL HD AUDIO CODEC WITH QUAD
DIGITAL MICROPHONE INTERFACE
STAC9204/9205
•
Optimized and flexible power management
Description
•
48-pin LQFP and 48-pad QFN environmental package
The STAC9204/9205 are high fidelity, 4-channel HD Audio
CODECs that enable 2.0 Audio with simultaneous
Real-Time Communication such as VoIP, conferencing,
voice command and control, etc. Up to four digital
microphones are supported, enabling high quality voice
input for increased usability of voice applications.
Software Support
•
SKPI (Kernel Processing Interface)
• Enables plug-ins that can operate globally on all audio streams
of the system
•
12 band parametric equalizer SKPI plug-in
Features
• Constant, system-level effects tuned to optimize a particular
platform can be combined with user-mode “presets” tailored for
specific acoustical environments and applications
•
High performance SD technology
• 103dB DAC SNR
• System-level effects automatically disabled when external
audio connections made
Dynamics Processing SKPI plug-in
• Enables improved voice articulation
• Compressor/limiter allows higher average noise level without
resonances
• 90dB ADC SNR
•
Two stereo DACs and two stereo ADCs
• Supports 2.0 Audio with simultaneous Real-Time
Communication (RTC) channel such as VoIP or separate
stereo audio stream
•
• Provides mono output for laptop sub-woofer
•
•
24-bit resolution with up to 192 KHz sample rates
Third Party Partners
Supports advanced chipsets with flexible 1.5 V to 3.3 V
•
Dolby PC Entertainment Experience Logo Program
• Dolby Home Theater (HT)
(SR)
signaling
™
™
•
•
Digital microphone interface
• Direct interface to up to four digital microphones
Analog stereo microphone
• Microphone Boost 0, 10, 20, 30, 40dB
• Five adjustable Vref outputs for microphone bias
Universal Jacks™ functionality for jack retasking
S/PDIF In and Out
Two-pin volume up/down control
Digital PC Beep to all outputs
+3.3 V, +4 V, +4.5 V and +5 V analog power supply
• Dolby Sound Room
•
Dolby Technologies
• Dolby Headphone
™
, Dolby Virtual Speaker
, Dolby ProLogic IIx
(DDL)
™
• Dolby ProLogic II
• Dolby Digital Live
™
™
™
•
•
•
•
•
•
•
•
Intel Audio Studio™ from Sonic Focus
Maxx Player™ from Waves
Microphone Beam Forming, Acoustic Echo Cancellation,
and Noise Suppression from Knowles™
BoloptcioknsDiagram
Port A
Port B
Port C
X
Port D
Port E
Port F
SPDIF
SPDIF In/Out
IDT™
1
STAC9204/9205
V 1.0 12/06
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE