FAN3852UC16X.pdf
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The FAN3852UC16X is an audio front-end device from onsemi intended for microphone applications in computing and consumer electronics. It accepts an ECM (electret condenser microphone) input and outputs a PDM digital audio stream, allowing designers to route microphone signals into digital processing chains with minimal analog routing on the PCB.
For mobile and battery-powered platforms, power efficiency is often just as important as audio quality. The FAN3852UC16X is designed with a low-power operating profile and supports a low-current sleep state, helping extend battery life in always-listening and voice-trigger systems.
Packaged in a compact 6-WLCSP (1.24 mm × 0.84 mm), this device is well suited for space-constrained designs such as laptops, tablets, smart accessories and embedded modules that require repeatable microphone performance and easy digital integration.
PDM output enables direct connection to many audio DSP/codec/MCU interfaces, reducing sensitivity to analog noise pickup and simplifying routing compared with long analog microphone traces.
Designed for battery-powered products, with a low operating current profile and a sleep state intended to minimize standby drain when the microphone path is not actively used.
Optimized for microphone signal paths, providing strong signal integrity (SNR performance) and low distortion to support clear voice pickup in conferencing, voice control and communication systems.
The 6-WLCSP package helps reduce board area and supports high-density product designs such as mobile devices, wearables and compact embedded modules.
Supports electret condenser microphone inputs commonly used in laptops and consumer devices, providing a practical bridge from analog microphone elements to digital processing.
Designed to work with typical PDM clocking used in embedded audio systems, supporting flexible clock rates so system designers can align microphone sampling with DSP requirements.
Targets microphone-quality signal fidelity with strong SNR behavior and low THD characteristics, improving intelligibility for voice and communications use cases.
| Parameter | Value / Condition |
|---|---|
| Function | Microphone interface / audio transceiver (ECM input to PDM output) |
| Number of Channels | 1 |
| Digital Output | PDM (Pulse Density Modulation) |
| Supply Current (typ.) | 420 µA (typ., operating) |
| Sleep Mode Current | 1.5 µA (typ.) |
| Signal-to-Noise Ratio | 62 dB(A) (typ., at 16 dB gain) |
| Total Harmonic Distortion | 0.02% (typ.) |
| Input Clock Frequency | 1 MHz to 4 MHz (typ. supported range) |
| Package | 6-WLCSP (1.24 mm × 0.84 mm) |
| Manufacturer | onsemi |
The FAN3852UC16X can be compared with other audio amplifier or microphone interface devices that provide similar signal conditioning or audio front-end functionality. The following parts are commonly considered functional alternatives at the system level:
These devices differ in output format, gain control method, package type and power consumption. When selecting an alternative, engineers should carefully evaluate microphone type support, digital or analog output requirements, supply voltage range and PCB footprint compatibility.
onsemi (ON Semiconductor) is a global supplier of semiconductor solutions for power management, analog, sensing and connectivity applications. The company supports a wide range of consumer, computing and industrial platforms with production-proven devices and long-term supply programs.
The FAN38xx series reflects onsemi's focus on compact, low-power audio and interface solutions for modern portable and embedded systems.
Supports built-in microphone paths for conferencing, voice commands and audio capture in compact computing platforms.
Ideal for portable products that use digital audio processing and require low-noise microphone performance with efficient power consumption.
Used in voice-enabled endpoints and communication modules where stable voice capture and digital integration are needed.
Applicable to compact instruments that require controlled audio acquisition and low standby power, provided system-level validation meets the specific compliance requirements.
We currently provide peer-to-peer order processing. Submit an RFQ for FAN3852UC16X, and our professional agent will contact you with competitive global pricing and guide you to complete the order once you accept the offer.
Our experienced QC team strictly verifies and tests FAN3852UC16X. Only qualified suppliers who pass our audit can list FAN3852UC16X on OEM STOCK GLOBAL LIMITED. We pay close attention to sourcing channels and product quality so you can purchase with confidence.
Pricing and inventory for FAN3852UC16X fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
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We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with FAN3852UC16X, returns/replacements are accepted when:
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
Please contact us for technical documents and support related to onsemi FAN3852UC16X, including pin diagrams and datasheets. Our team will respond promptly.
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