DESCRIPTION

· The NAU88L25 is an ultra-low power, high-performance audio codec designed for headphone or headset applications in various portable devices.
· It includes one I2S/PCM interface, one high-quality stereo DAC, one mono ADC, a Class G stereo headphone amplifier, and advanced headset features.
· The device features an on-chip signal processing engine with dynamic range compressor, programmable bi-quad filters, sidetone, and digital mixers.
· It integrates a frequency locked loop (FLL) to support various clocks with fewer external components.
· The NAU88L25 operates with analog supply voltages from 1.6V to 1.8V and digital core voltages from 1.1V to 1.98V.
· It is specified for operation from -40°C to +85°C and is available in QFN 32 or CSP package with 0.4mm pitch.

FEATURES

· DAC with auto attenuate: 124dB SNR; without auto mute: 113dB SNR, -89dB THD @ 20mW and RL=32Ω.
· ADC: 101dB SNR, -91dB THD @ 1.8V, MIC gain 0dB, OSR 128x.
· 1 Digital I2S/PCM I/O port.
· Dynamic Range Compressor (DRC) and Programmable Biquad filter.
· 1 Headset Mic, 1 Differential Analog Mic input, Line-input, or two single-ended Mic input.
· Class G Headphone Amplifier: 28mW @ 32Ω, 1% THD+N.
· Sampling rate from 8K to 192 KHz.
· Headset Detection & Auto Headset switch for MIC and Ground.
· Jack Insertion and Ejection Detection and Distinct Keys Detection.
· Package: 32 Pin QFN package, and Optional 42 Balls WLCSP with 0.4mm Pitch.

APPLICATIONS

· Gaming Controller.
· Ultra-Portable Laptop.
· Mobile Device.
· Wireless Headset.
· Smart Remote Controller.