FSA8108BUCX

Specialized Overview

The FSA8108BUCX is a dual analog switch manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It operates within a supply voltage range of 1.65V to 5.5V and supports bidirectional signal transmission. The device features low on-resistance (Ron) of typically 2.5 ohms at 3.3V and 1.8 ohms at 5V, ensuring minimal signal attenuation. With an off-isolation of 45dB and a bandwidth exceeding 700MHz, it maintains signal integrity in high-speed applications. The package is a compact 6-ball Wafer Level Chip Scale Package (WLCSP), facilitating space-constrained designs.

Specialized Feature Summary

• Dual-channel configuration for efficient signal routing
• Low on-resistance for minimal insertion loss
• Wide operating voltage range supporting various logic levels
• High bandwidth for high-frequency signal processing

Specialized Applications

• Portable multimedia devices
• Mobile phone audio and video switching
• USB hub signal routing
• LCD panel interface protection

Specialized Procurement Notes

Verify the updated part number format when sourcing from ON Semiconductor channels, as Fairchild integration may have changed nomenclature conventions. Confirm the specific suffix indicates the correct WLCSP packaging and lead-free compliance status required for your assembly process. Ensure compatibility with RoHS directives if applicable to your region.

Specialized Selection Notes

Select this component when a dual-channel analog switch with low Ron and wide bandwidth is required in a minimal footprint. Compare against single-channel alternatives if only one path is needed to reduce cost. Consider the 1.65V minimum operating voltage for battery-powered applications requiring low standby current.

Specialized Part Context

This component belongs to the FSA series of analog switches designed for portable electronics. It complements other signal management ICs from Fairchild/ON Semi, offering a solution for multiplexing audio, video, or data lines in mobile handsets and consumer gadgets where board space is limited.

Specialized Replacement Considerations

Check for direct equivalents such as the FSA8108 without the UCX suffix if packaging variations are acceptable. Verify pinout compatibility before substituting with similar dual switches from other manufacturers to ensure proper signal routing.