DATASHEET
SINGLE CHIP PC AUDIO SYSTEM
CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD91 Features
• 4 Channels (2 stereo DAC...
DATASHEET
SINGLE CHIP PC AUDIO SYSTEM
CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD91 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
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. The high integration of the 92HD91 enables the smallest PCB footprint with the lowest system BOM count and cost. 92HD91 provides high quality HD Audio capability to notebook and business desktop PC applications.
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
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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...