DATASHEET SINGLE CHIP PC AUDIO SYSTEM 92HD91 CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO Description Features The 92HD91 single-chip audio system is a low power 4 Channels (2 stereo DACs and 2 stereo ADCs) optimized, high fidelity, 4-channel audio codec with with 24-bit resolution Supports full-duplex stereo audio and simultaneous integrated speaker amplifier, capless headphone amplifier, VoIP and low drop out voltage regulator. Provides a mono output The high integration of the 92HD91 enables the smallest 2.1 audio crossover support PCB footprint with the lowest system BOM count and cost. 2W/channel Class-D stereo BTL speaker amplifier 92HD91 provides high quality HD Audio capability to 4 ohms and 5V notebook and business desktop PC applications. 10 band hardware parametric equalizer Hardware compressor limiter Capless headphone amplifier with charge pump/LDO Combo Jack Support allowing for dual-function headphone and headset detection Speaker Protection Dedicated BTL high pass filter Mono bandpass filter Full HDA015-B low power support Internal digital core LDO voltage regulator Microsoft WLP desktop premium logo compliant Dual SPDIF for WLP compliant support of simultaneous HDMI and SPDIF output Support for 1.5V and 3.3V HDA signaling Two digital microphone inputs (mono, stereo, or quad microphones) Microphone Mute Input (on WB revisions and beyond) High performance analog mixer 2 adjustable VREF Out pins for analog microphone bias 6 analog ports with port presence detect (5 single ended, 1 BTL) Analog and digital PC Beep support AUX Audio Mode for playback and record 48-pad QFN RoHS packages in Commercial and Industrial Temperature Ranges IDT CONFIDENTIAL 1 V 1.5 02/13 2009 INTEGRATED DEVICE TECHNOLOGY, INC. 92HD9192HD91 SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO Full HDA015-B low power support Audio inactivity transitions codec from D0 to D3 low power mode Resume from D3 to D0 with audio activity in < 10 msec D3 to D0 transition with < -65dB pop/click Port presence detect in D3 with or without bit clock PC beep wake up in D3 Additional vendor specific modes for even lower power Software Support Intuitive IDT HD Sound graphical user interface that allows configurability and preference set- tings 12 band fully parametric equalizer 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 audio connections made Dynamics Processing Enables improved voice articulation Compressor/limiter allows higher average volume level without resonances or damage to speakers. IDT Vista APO wrapper Enables multiple APOs to be used with the IDT Driver Microphone Beam Forming, Acoustic Echo Cancellation, and Noise Suppression Dynamic Stream Switching Improved multi-streaming user experience with less support calls rd Broad 3 party branded software including Creative, Dolby, DTS, and SRS IDT CONFIDENTIAL 2 V 1.5 02/13 2009 INTEGRATED DEVICE TECHNOLOGY, INC. 92HD91