FSA4486UCX

Analog Switches - Special Purpose Overview

The FSA4486UCX is a USB Type-C analog audio switch designed for mobile and portable devices. It supports simultaneous transmission of USB 2.0 signals, analog audio, sideband use lines (SBU), and analog microphone signals through a shared port. The device operates within a VCC supply range of 2.7V to 5.5V. Key electrical parameters include a typical on-resistance of 3Ω with a maximum of 5.2Ω for the USB switch path. Audio performance features a Total Harmonic Distortion plus Noise (THD+N) of less than -110 dB at 1 VRMS into a 32Ω load. Bandwidth specifications are 500MHz for the audio switch and 900MHz for the USB switch. Standby power consumption is typically 5mA.

Analog Switches - Special Purpose Feature Summary

• Integrated detection mechanism distinguishes between USB Type-C audio accessories and standard USB devices for seamless mode switching.
• Built-in protection functions include overvoltage protection (OVP) on common node pins, overcurrent protection for analog ground switches, and 20V DC tolerance on connector-side pins.
• Supports pop-and-click noise suppression to ensure high-fidelity audio operation in consumer electronics.

Analog Switches - Special Purpose Applications

• Mobile phones
• Tablets
• Laptops
• Media players

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer verification. Confirm RoHS compliance status and check for any Product Change Notifications (PCN) or End-of-Life (EOL) notices prior to integration. Ensure design compatibility with I2C interface voltage levels of 1.2V or 1.8V as specified in the official datasheet.

Analog Switches - Special Purpose Selection Notes

Select this component for designs requiring a single USB Type-C port to handle both data and analog audio streams. The WLCSP package is suitable for space-constrained applications. Verify that the system power supply remains within the 2.7V to 5.5V operating range and that ESD protection requirements align with the device's integrated tolerances.

Analog Switches - Special Purpose Part Context

The FSA4486UCX belongs to the FSA4486 series of USB Type-C multimedia switches manufactured by onsemi. It is part of a family of components designed to manage signal routing in modern connectivity standards. The UCX suffix denotes the specific WLCSP-25 packaging configuration used for surface-mount assembly.

Analog Switches - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official onsemi resources for potential cross-references or updated product line replacements.