DATASHEET SINGLE CHIP PC AUDIO SYSTEM 92HD87 CODEC+ STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO Description Features The 92HD87 single-chip audio system is a low power 4 Channels (2 stereo DACs and 2 stereo ADCs) with optimized, high fidelity, 4-channel audio codec with 24-bit resolution Supports full-duplex stereo audio and simultaneous VoIP integrated speaker amplifier, capless headphone amplifier, and low drop out voltage regulator. 2W/channel stereo speaker amplifier 4 ohms and 4.75V The high integration of the 92HD87 and the 40QFN package enables the smallest PCB footprint with the lowest Two headphone amplifiers system BOM count and cost. One capless and one non-capless retaskable The 92HD87 provides high quality HD Audio capability to Internal LDO for digital core supply notebook and business desktop PC applications. +5 V analog power supply option Dedicated BTL high pass filter for speaker protection (RA revision only) 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 Optional analog PC beep in D3 Additional vendor specific modes for even lower power Microsoft WLP premium logo compliant, as defined in WLP 3.9 Support for 1.5V and 3.3V HDA signaling Digital microphone inputs (mono or stereo) Aux Audio Mode (see orderable part numbers for support) High performance analog mixer 2 adjustable VREF Out pins for analog microphone bias 5 analog ports with port presence detect + stereo speaker differential output) Analog and digital PC Beep support 40-pad QFN RoHS package IDT CONFIDENTIAL 1 V 0.995 01/11 2009 INTEGRATED DEVICE TECHNOLOGY, INC. 92HD8792HD87 SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO 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 0.995 01/11 2009 INTEGRATED DEVICE TECHNOLOGY, INC. 92HD87