FSAV331QSCX

Analog Switches - Special Purpose Overview

The FSAV331QSCX is a quad video switch integrated circuit manufactured by Fairchild Semiconductor, now part of onsemi. It features four independent single-pole double-throw (SPDT) switches within a single package. The device operates with a supply voltage range of 4.75 V to 5.25 V and supports a -3 dB bandwidth of 368 MHz. Key electrical specifications include a maximum on-resistance of 10 Ohms, a typical off-isolation of -40 dB, and propagation delays with a maximum turn-on time of 7 ns and turn-off time of 4 ns. It functions reliably across an operating temperature range from -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• Integrates four independent SPDT analog switches for multi-channel signal routing
• Provides high-frequency performance suitable for video applications via 368 MHz bandwidth
• Features low on-resistance for minimal signal attenuation during conduction
• Includes individual enable controls for precise channel management

Analog Switches - Special Purpose Applications

• Video signal switching and routing in consumer electronics
• Audio/Video multiplexing systems
• Test and measurement equipment requiring analog signal selection

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity through authorized distributors or certified secondary market suppliers due to the component's end-of-life status. Request original manufacturer documentation or traceability records to confirm the part has not been refurbished or counterfeited. Ensure the QSOP-16 package matches the design footprint requirements before finalizing procurement decisions.

Analog Switches - Special Purpose Selection Notes

Select this component when a quad SPDT configuration is required for 5V logic systems. Compare against the FSAV430 series if higher bandwidth exceeding 368 MHz is necessary. Verify that the 10 Ohm on-resistance meets the specific impedance matching requirements of the target application circuit.

Analog Switches - Special Purpose Part Context

This component belongs to the FSAV33x family of video switches produced by Fairchild Semiconductor. The QSCX suffix indicates a lead-free, halogen-free variant packaged in a 16-pin QSOP format. The series was designed to replace older discrete switching solutions with a compact, integrated approach for AV signal paths.

Analog Switches - Special Purpose Replacement Considerations

Direct pin-compatible alternatives may be limited due to the discontinued status. Consider the FSAV430QSCX for higher bandwidth needs or generic CMOS SPDT switches if electrical parameters allow for deviation from the specified 368 MHz bandwidth and 10 Ohm resistance.