Audio Codec 2ADC / 2DAC 24-Bit 40-Pin QFN EP

The 92HD88 single-chip audio system is a low power optimized, high fidelity, 4-channel audio codec with integrated mono speaker amplifier, cap less headphone amplifier, and low drop out voltage regulator. The high integration of the 92HD88 enables the smallestPCB footprint with the lowest system BOM count and cost. The 92HD88 provides high quality HD Audio capability to notebook and business desktop PC applications.

• 4 Channels (2 stereo DACs and 2 stereo ADCs) with24-bit resolution
• Supports full-duplex stereo audio and simultaneous VoIP
• Provides a mono output
• 2W mono speaker amplifier @ 4 O and 4.75V
• Two headphone amplifiers
• One cap less and one non-cap less retaskable
• Internal core voltage regulator
• +5 V analog power supply option
• Dedicated BTL high pass filter for speaker protection (RA revision only)
• Full ECR15B low power support
• 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)
• Aux Audio Mode
• 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
• 40-pad QFN RoHS packages