SINGLE CHIP PC AUDIO SYSTEM
CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO+I2S

Description
The 92HD90 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.
Dual High Definition Audio and I2S Interfaces allow for docking audio support with a single codec.
The integrated combo jack allows for dual-function headphone and headset detection.
The integrated high-pass and band-pass filters allow for Hardware EQ and speaker protection.
The high integration of the 92HD90 enables the smallest PCB footprint with the lowest system audio BOM count and cost. The 92HD90 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
• 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)
• I2S support (2 ports)
• 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)
• High performance analog mixer
• 2 adjustable VREF Out pins for analog microphone bias
• 4 analog ports with port presence detect (3 single ended, 1 BTL)
• Analog and digital PC Beep support
• 48-pad QFN RoHS package