Description
The 92HD99 single-chip audio system is a low power optimized, high fidelity, 4-channel audio codec with stereo integrated speaker amplifier, capless headphone amplifier, and low drop out voltage regulator.
The high integration of the 92HD99 enables the smallest PCB footprint with the lowest system BOM count and cost. 92HD99 provides high quality HD Audio capability to notebook and business desktop PC applications.

Features
• 4 Channels (2 stereo DACs and 2 stereo ADCs) with 24-bit resolution
• Supports full-duplex stereo audio and simultaneous VoIP
• 2W Class-D stereo BTL speaker amplifier @ 4 ohms and 5V
• 10 band hardware parametric equalizer
• Hardware compressor limiter
• Dedicated BTL high pass filter for speaker protection
• Capless headphone amplifier with charge pump/LDO
• Combo Jack Support allowing for dual-function headphone and headset detection
• Full HDA015-B low power support
• Internal digital core LDO voltage regulator
• Microsoft WLP desktop premium logo compliant
• Support for 1.5V and 3.3V HDA signaling
• Digital microphone inputs (mono or stereo mics)
• High performance analog mixer
• 2 adjustable VREF Out pins for analog microphone bias
• 5 analog ports with port presence detect (4 single ended, 1 BTL)
• Analog and digital PC Beep support
• AUX Audio mode for playback
• 40-pad QFN RoHS packages