RS550YTQC16

Overview

The RS550YTQC16 is a single-channel analog switch IC manufactured by Runic Technology, designed for audio and telecommunications applications. It features a 4:1 multiplexer/demultiplexer circuit with a 4PST (Single Pole Four Throw) switching configuration housed in a compact 16-WFQFN package measuring 3x3 mm. The device operates on a single power supply ranging from 1.6V to 3V and supports an operating temperature range of -40°C to 85°C. Key electrical specifications include a typical on-resistance of 500 milliohms and a -3dB bandwidth of 200MHz. The component is RoHS3 compliant and classified under EAR99.

Feature Summary

• Provides isolation capabilities within the signal path for sensitive audio and telecom circuits.
• Integrates a 4:1 multiplexing function allowing selection among four input or output channels.
• Utilizes a low-profile surface-mount 16-QFN package suitable for space-constrained designs.

Applications

• Audio signal routing and switching systems
• Telecommunications equipment interface management

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging options such as tape and reel or cut tape are selected. Confirm that the 16-WFQFN footprint matches the target PCB layout dimensions precisely. Check for any recent product change notifications regarding material composition or manufacturing site changes to maintain compliance with project requirements.

Selection Notes

Ensure the design voltage remains within the 1.6V to 3V single supply limit to prevent device damage. Verify that the required signal bandwidth does not exceed the 200MHz specification to maintain signal integrity. Consider the thermal dissipation characteristics given the small 3x3mm package size when determining board-level heat management strategies for continuous operation.

Part Context

This component belongs to the analog switch category specifically optimized for high-frequency signal routing. It serves as a critical interface element in systems requiring precise channel selection between multiple sources or destinations. The integration of isolation features distinguishes it from standard multiplexers used in lower-frequency digital logic applications.

Replacement Considerations

Consult the manufacturer's official cross-reference list for verified substitutes. Ensure any alternative part maintains compatibility with the 16-QFN(3x3) footprint and the 1.6V-3V operating voltage range. Verify that the replacement offers equivalent on-resistance and bandwidth specifications for the intended application.