STAC9271 Datasheet | IDT

.. 10-CHANNEL HIGH DEFINITION AUDIO CODEC 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 Vo IP or another stereo audio stream. IDT's proprietary Σ∆ technology provides high fidelity with an estimated DAC SNR up to 105d B. Up to four digital microphones are supported enabling high quality voice input for increased usability of voice applications. STAC9271/9272/9273/9274 - - - 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 Constant, system-level effects tuned to optimize a particular platform can be bined with user-mode “presets” tailored for specific acoustical environments and applications System-level effects automatically disabled when external connections made Enables improved voice articulation pressor/limiter allows higher average noise level without resonances Dolby Master Studio TM (See Table) Dolby Home Theater TM (See Table) Dolby Sound Room TM (See Table) Dolby Headphone TM, Dolby Virtual Speaker TM Dolby Pro Logic IITM, Dolby Pro Logic IIx TM Dolby Digital Live TM Features - - High performance HD Audio CODEC provides Theater Quality Audio High performance Σ∆ technology 12 band parametric equalizer SKPI plug-in - - - - - - - 105d B DAC SNR 90d B ADC SNR Supports 7.1 Audio with simultaneous Real Time munication (RTC) channel such as Vo IP or separate stereo audio stream - - - - - Five Stereo DACs and three stereo ADCs Dynamics Processing SKPI plug-in 24-bit resolution with up to 192 KHz sample rates Digital Microphone Interface Dolby PC Entertainment Experience Logo Program - - - - - - - - Direct interface up to four Digital Microphones Microphone Boost 0, 10, 20, 30, 40d B Six adjustable Vref outputs for...