Description

The 92HD91 single-chip audio system is a low power optimized, high fidelity, 4-channel audio codec with
integrated speaker amplifier, capless headphone amplifier, and low drop out voltage regulator.

Features

• 4 Channels (2 stereo DACs and 2 stereo ADCs) with 24-bit resolution

    • Supports full-duplex stereo audio and simultaneous VoIP

    • Provides a mono output

    • 2.1 audio crossover support

• 2W/channel Class-D stereo BTL speaker amplifier @ 4 ohms and 5V

    • 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