NUVOTON NAU88L21YG

The NAU88L21 is an ultra-low power high performance audio codec that supports both analog and digital audio functions. It includes one I2S/PCM interface, one digital microphone interface, one digital mixer, two high quality DACs and ADC’s, and one stereo class G headphone amplifier. The advanced on-chip signal processing engine that includes dynamic range compressor (DRC), programmable biquad filter, as well as an integrated frequency locked loop (FLL) to support various input clocks.

• DAC: 105dB SNR, (A-weighted) @ 0dB gain, 1.8V and - 88dB THD @ 20mW and RL = 32Ω, DAC playback to headphone output mode
• ADC: 103dB SNR (A-weighted) @ 0dB MIC gain, 1.8V, Fs = 48kHz and -93dB THD, 1.8V, MIC gain 0dB, OSR 256x
• 1 Digital I2S/PCM I/O port
• Two mono differential or one stereo differential analog microphone inputs, two single-ended microphone inputs or one stereo digital microphone input
• Cap-free Low noise Microphone bias with 7uVrms noise between 20Hz - 20kHz, internal pull high resistor for microphone
• Class G Headphone Amplifier (28mW @ 32Ω, 1% THD+N)
• Sampling rate from 8k to 192kHz
• Dynamic Range Compressor (DRC)
• Programmable Biquad filter
• Integrated DSP with specific functions: Input automatic level control (ALC/AGC)/limiter, Output dynamic-range-compressor/limiter
• Package: 32 Pin QFN package

• Gaming controller
• Wireless Headset
• Smart Remote Controller