FSA2380MTC

Analog Switches - Special Purpose Overview

The FSA2380MTC is a 3:1 negative swing audio source switch manufactured by onsemi. It integrates three independent single-pole double-throw (SPDT) analog switches within a compact package, designed for portable multimedia applications. The device supports signal voltages up to 5V and features low on-resistance to minimize signal attenuation. Key electrical characteristics include a typical on-resistance of 0.75 ohms and an off-isolation of 68 dB at audio frequencies. It operates with a supply voltage range of 1.65V to 5.5V, ensuring compatibility with various logic levels in consumer electronics.

Analog Switches - Special Purpose Feature Summary

• Supports negative swing audio signals for accurate reproduction in portable devices
• Integrates three independent SPDT switches for multi-source selection
• Low on-resistance ensures minimal signal loss across the audio path
• High off-isolation prevents crosstalk between unselected audio sources

Analog Switches - Special Purpose Applications

• Audio source switching in mobile phones and tablets
• Multi-input audio selectors for portable media players
• Headset jack detection and switching circuits
• Audio routing in Bluetooth-enabled wearable devices

Analog Switches - Special Purpose Procurement Notes

Verify the exact suffix 'MTC' against official onsemi documentation to confirm package type and tape/reel specifications. Ensure the component meets required automotive or industrial standards if applicable, as standard versions may differ. Cross-reference with distributor datasheets to confirm availability and lead times without relying on generic stock claims.

Analog Switches - Special Purpose Selection Notes

Select this component when designing audio paths requiring multiple input sources with low distortion. Compare on-resistance and leakage current specifications against alternative switches to ensure signal integrity. Verify that the operating voltage range aligns with the system's power supply rails and logic thresholds for reliable control.

Analog Switches - Special Purpose Part Context

The FSA2380 series belongs to onsemi's portfolio of analog switches optimized for audio applications. This specific model extends functionality by providing three channels in a small footprint, addressing space constraints in modern handheld devices. It complements other FSA series switches by offering dedicated negative swing capability essential for high-fidelity audio processing.

Analog Switches - Special Purpose Replacement Considerations

Direct substitutes include the FSA2380BQX and FSA2380 variants from Fairchild/ON Semiconductor. Check pinout compatibility and package dimensions before substitution. Alternative manufacturers may offer similar SPDT switches, but verify negative swing support and on-resistance values to maintain audio performance.