4302-52

Attenuators Overview

The pSemi 4302-52 is a 6-bit RF digital step attenuator designed for high linearity applications. It provides a total attenuation range of 31.5 dB with a resolution of 0.5 dB per step. The device operates over a frequency range from DC to 4.0 GHz and maintains a characteristic impedance of 50 Ohms. It is housed in a compact 20-WFQFN exposed pad package, suitable for surface-mount assembly. The component exhibits low insertion loss and low control power consumption, making it efficient for signal conditioning tasks.

Attenuators Feature Summary

• Six-bit digital control interface for precise attenuation steps
• High linearity performance across the operational bandwidth
• Low insertion loss characteristics for minimal signal degradation
• Compact 20-pin QFN package with exposed thermal pad

Attenuators Applications

• RF signal path attenuation in communication systems
• Test and measurement equipment requiring variable gain control
• Wireless infrastructure components needing precise signal level adjustment
• Phased array antenna systems for beamforming control

Attenuators Procurement Notes

Verify the specific suffix code against the manufacturer's current datasheet to confirm pinout and packaging details. Check for end-of-life notices or obsolescence alerts, as availability may be limited. Ensure compatibility with your PCB footprint design, specifically regarding the exposed pad thermal requirements. Confirm that the supply chain source provides genuine parts with traceable documentation to avoid counterfeit risks.

Attenuators Selection Notes

Select this component when a 6-bit resolution is sufficient for your application's dynamic range requirements. Consider the 4 GHz upper frequency limit to ensure it meets your system's bandwidth needs. Evaluate the 20-WFQFN package size against your available board space constraints. Verify that the control logic levels are compatible with your microcontroller or FPGA outputs before finalizing the design.

Attenuators Part Context

This part belongs to the PE4302 series of digital step attenuators manufactured by pSemi. The series is known for integrating high-performance RF attenuation into a small form factor. The 4302-52 variant specifically denotes the standard 50-ohm impedance version with the 20-QFN package configuration. It serves as a key component for managing signal strength in modern RF front-end designs.

Attenuators Replacement Considerations

Consult official substitution lists for direct equivalents. Cross-reference pinouts and electrical specifications carefully if considering alternative manufacturers. Verify that any substitute part supports the same 6-bit control scheme and 4 GHz frequency range.