FSA201MUX

Analog Switches - Special Purpose Overview

The FSA201MUX is a USB 2.0 full-speed and audio switch manufactured by Fairchild Semiconductor. It supports negative signal capability for robust data transmission. The device integrates two independent SPDT switches within a single package, designed for low-power applications. It operates with supply voltages compatible with standard USB interfaces. The component utilizes a compact surface-mount package to minimize board space while maintaining signal integrity for high-frequency digital and analog signals.

Analog Switches - Special Purpose Feature Summary

• Supports USB 2.0 full-speed data rates up to 12 Mbps
• Enables negative signal capability for improved signal integrity
• Integrates two independent single-pole double-throw (SPDT) switches
• Designed for low power consumption in portable devices

Analog Switches - Special Purpose Applications

• USB hub switching circuits
• Audio line switching in multimedia devices
• Laptop docking station port selection
• Peripheral device connection management

Analog Switches - Special Purpose Procurement Notes

Verify the manufacturer marking on the component body to confirm it originates from Fairchild Semiconductor or its successor entity, ON Semiconductor. Check for RoHS compliance status as production lots may vary. Ensure the package marking matches the specific suffix code to avoid confusion with similar pin-compatible parts from other vendors. Request the original datasheet revision history to confirm electrical characteristics match your design requirements.

Analog Switches - Special Purpose Selection Notes

Select this component when designing circuits requiring dual-channel switching for USB 2.0 full-speed interfaces. It is suitable for applications needing negative signal handling to prevent data corruption. Compare on-resistance and leakage current specifications against system requirements. Consider package availability and lead times if sourcing from secondary distributors. Verify thermal performance if operating near maximum temperature limits.

Analog Switches - Special Purpose Part Context

This part belongs to the FSA201 series of USB switches. It is functionally related to the FSA201L10X and other variants in the same family. The MUX suffix typically indicates a specific tape-and-reel packaging option or internal test configuration. It serves as a replacement for older discrete switching solutions in USB host and device designs.

Analog Switches - Special Purpose Replacement Considerations

Check for direct replacements like FSA201L10X which shares similar functionality. Verify pinout compatibility before substituting with FSA221 series parts, as they support higher speeds. Confirm that any substitute maintains the negative signal capability requirement. Review datasheets for differences in on-resistance and power consumption.