Smart Home Audio(325)




NAU88L24IG is an ultra-low power high performance audio codec designed for smartphone, tablet PC, and other portable devices that supports both analog and digital audio functions.

NAU88L24IG includes one I²S/PCM interface, one digital mixer, two high quality DACs, two high quality ADCs, two mono differential or one stereo differential analog microphone inputs, four analog single-ended microphone inputs, four digital PDM microphone inputs, one single ended stereo auxiliary or one differential mono inputs, one differential headset mic input, one stereo 2.9W class D loudspeaker amplifier driver for 4Ω loads and 5V supply, and one stereo class G headphone amplifier with advanced headset detection.

Target Applications:

Tablet / Ultra-Portable Laptop
Audio Docking System
Portable Game Player

Key Features:

ADC Feature
  - SNR (A-weighted): 100dB @ 0dB Mic gain
  - THD+N: -85dB @ 6dB Mic gain
  - Dynamic Range Compressor
DAC Feature
  - Class G Headphone Amplifier (27mW @ 32Ω, 1% THD+N)
  - Stereo Class D Loudspeaker Amplifier:
  • 0.97W @ 4.2V, 8Ω, 1% THD+N
  • 1.38W @ 5.0V, 8Ω, 1% THD+N
  - SNR (A-weighted): 103dB @ 0dB gain
  - THD+N: -77dB @ 20mW, RL=32ohm
Audio Input
  - Digital Audio Interface: I2S / PCM Input
  - Microphone Input:
  • 1 x Headset Mic
  • 4 x Differential Analog Mic Input
  • 4 x Digital PDM Mic Input
  - Stereo Auxiliary Input
  - Sample rates: 8~96kHz
Advance/Control Feature
  - Headset Detection
  - Jack Insertion and Ejection Detection
  - Distinct Keys Detection
  - I2C Control Interface
Operating Characteristics
  - Voltage range(VDDC): 1.61V to 1.98V, SR>48KHz /FLL Enable
  - Voltage range(VDDC): 1.1 V to 1.98 V, SR<48KHz /FLL Disable
  - Temperature range: -40°C to 85°C
  - QFN-48 (6x6mm)
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