FAN3852UC16X

Audio Special Purpose Overview

The FAN3852UC16X is a microphone pre-amplifier with digital output from onsemi. It integrates a pre-amplifier, low-dropout regulator (LDO), and sigma-delta ADC to convert Electret Condenser Microphone (ECM) signals into Pulse Density Modulation (PDM) data streams. The device operates within a supply voltage range of 1.64 V to 3.63 V. Key electrical specifications include a signal-to-noise ratio (SNR) of 62 dB(A) at 16 dB gain, total harmonic distortion of 0.02%, and typical supply current of 420 µA. It features a standard 5-wire digital interface and is housed in a compact 6-ball WLCSP package.

Audio Special Purpose Feature Summary

• Integrates pre-amplifier, LDO, and ADC for direct ECM to PDM conversion
• Low power consumption: 420 µA typical supply current; <20 µA in Power-Down Mode
• High performance: 62 dB(A) SNR and 0.02% THD
• Small form factor: 1.242 mm × 0.842 mm 6-Ball WLCSP package

Audio Special Purpose Applications

• Mobile handset microphones
• Notebook PC microphone applications
• Headset accessories
• Electret condenser microphones with digital output

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix UC16X against official documentation to confirm the -40°C to +85°C operating temperature range and the 3000-unit tape and reel packing method. Ensure compatibility with system requirements for the 1.64 V to 3.63 V supply voltage before procurement.