STAC9271 Datasheet, PDF (1/223 Pages) Integrated Device Technology – 10-CHANNEL HIGH DEFINITION AUDIO CODEC

10-CHANNEL HIGH DEFINITION AUDIO CODEC
DATASHEET
STAC9271/9272/9273/9274
Description
The STAC927x “Red River” is a family of Theater Quality
10-channel audio CODECs that enable systems with 7.1
audio playing simultaneously with VoIP or another stereo
audio stream. IDT's proprietary Σ∆ technology provides
high fidelity with an estimated DAC SNR up to 105dB. Up to
four digital microphones are supported enabling high
quality voice input for increased usability of voice
applications.
Features
• High performance HD Audio CODEC provides
Theater Quality Audio
• High performance Σ∆ technology
• 105dB DAC SNR
• 90dB ADC SNR
• Five Stereo DACs and three stereo ADCs
• Supports 7.1 Audio with simultaneous Real Time
Communication (RTC) channel such as VoIP or separate
stereo audio stream
• 24-bit resolution with up to 192 KHz sample rates
• Digital Microphone Interface
• Direct interface up to four Digital Microphones
• Analog Stereo Microphone
• Microphone Boost 0, 10, 20, 30, 40dB
• Six adjustable Vref outputs for microphone bias
• Integrated Headphone Amps (3)
• S/PDIF In and Out
• ADAT^® Optical “Lightpipe” Output
Support
• Volume Up/Down Control
• Jack Insertion Detect and Impedance Sensing
supports Jack Retasking and Universal Jacks
• Digital PC Beep to all outputs
• +3.3 V to +5 V analog power supply options
• Environmental 48-pin LQFP package
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
• Constant, system-level effects tuned to optimize a
particular platform can be combined with user-mode
“presets” tailored for specific acoustical environments
and applications
• System-level effects automatically disabled when
external connections made
• Dynamics Processing SKPI plug-in
• Enables improved voice articulation
• Compressor/limiter allows higher average noise level
without resonances
• Dolby PC Entertainment Experience Logo Program
• Dolby Master Studio^TM (See Table)
• Dolby Home Theater^TM (See Table)
• Dolby Sound Room^TM (See Table)
• Dolby Technologies
• Dolby Headphone^TM, Dolby Virtual Speaker^TM
• Dolby ProLogic II^TM, Dolby ProLogic IIx^TM
• Dolby Digital Live^TM
• Intel Audio Studio^TM from Sonic Focus
• Maxx Player^TM from Waves
• Microphone Beam Forming, Acoustic Echo
Cancellation, & Noise Suppression from
Knowles^TM
IDT™ 10-CHANNEL HIGH DEFINITION AUDIO CODEC
1
IDT CONFIDENTIAL
STAC9271/9272/9273/9274 V 1.0 MARCH2007