NAU88L25YGB

The NAU88L25YGB is an ultra-low power high performance audio codec designed for headphone or headset application in smartphone, tablet PC, Chromebooks, laptop, game controller, Bluetooth headphones and other portable devices. It includes one I2S/PCM interface, one high quality stereo DACs, one mono ADC, a Class G stereo headphone amplifier, and industry leading advanced headset features.

NAU88L25YGB has powerful headset detection mechanism, which detects jack insertion / ejection, microphone presence, speaker impedance, and up-to 8 user defined buttons with long/short key press debouce circuit. It also supports headphone crosstalk detection/suppression, and automatic microphone & ground detection / switching to work automatically with different audio jack formats without using external chips or components.

Target Applications:

• Gaming Controller
• Ultra-Portable Laptop
• Mobile Device
• Wireless Headset
• Smart Remote Controller
Key Features:

• ADC Feature
- SNR (A-weighted): 101dB @ 0dB Mic gain
- THD+N: -91dB @ 0dB Mic gain
- Dynamic Range Compressor
- Programmable Biquad Filter

• DAC Feature
- Class G Headphone Amplifier (28mW @ 32Ω, 1% THD+N)
- DAC Volume Auto-Attenuation
- SNR (A-weighted): 124dB @ 0dB gain, auto-mute enable
- SNR (A-weighted): 113dB @ 0dB gain, without auto-mute
- THD+N: -89dB @ 20mW, RL=32ohm

• Audio Input
- Digital Audio Interface: I2S / PCM Input
- Analog Input:
1 x Headset Mic
1 x Differential Analog Mic Input
1 x Line-in
2 x Single-Ended Input
- Sample rates: 8~192 kHz

• Advance/Control Feature
- Headset Detection & Auto Headset switch for MIC and Ground
- 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

• Package
- QFN-32 (5x5mm)