DESCRIPTION

· The NAU8502 is a low-power, high-quality audio input system for portable applications.
· It integrates 24-bit stereo ADCs, differential microphone inputs, line inputs, and analog bypass/side tone output.
· Features advanced DSP including ALC, 5-band EQ, notch filter, and high-pass filter.
· Operates with analog supply voltages from 2.7V to 3.6V and digital core as low as 1.71V.
· Supports master/slave digital interface and internal Fractional-N PLL for clock generation.
· Specified for operation from -40°C to +85°C, with automotive-grade options available.

FEATURES

· 24-bit audio ADC with 90dB SNR and -80dB THD.
· Supports sample rates from 8kHz to 48kHz.
· Wide-range programmable input amplifiers and stereo line inputs.
· Standard audio interfaces: PCM and I2S.
· Includes 5-band EQ, ALC, notch filter, and high-pass filter.
· On-chip LDO and Fractional-N PLL for precise clock generation.

APPLICATIONS

· Audio recording devices and security systems.
· Video and still cameras.
· Enhanced audio inputs for SoC products.
· Audio input accessory products and gaming systems.