Audio Codec 2ADC /2 DAC 24-Bit 48-Pin VFQFPN

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.

• 4 Channels (2 stereo DACs and 2 stereo ADCs) with 24-bit resolution
• 2W/channel Class-D stereo BTL speaker amplifier @ 4 O and 5V
• Capless headphone amplifier with charge pump/LDO
• Combo Jack Support allowing for dual-function headphone and headset detection
• Speaker Protection
• 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