4305-52

Attenuators Overview

The pSemi 4305-52 is a variable RF attenuator designed for high-frequency applications. It operates within a frequency range of 0 Hz to 4 GHz and features a nominal attenuation value of 15.5 dB. The component maintains a standard system impedance of 50 Ohms, ensuring compatibility with common RF transmission lines. It exhibits a maximum insertion loss of 2.25 dB when set to minimum attenuation. The device is housed in a compact 20-WFQFN package with an exposed pad, facilitating surface-mount integration into dense circuit boards.

Attenuators Feature Summary

• Provides variable attenuation control across a wide radio frequency spectrum up to 4 GHz
• Designed with a 50 Ohm impedance profile for seamless signal chain integration
• Utilizes a low-profile 20-pin QFN package with an exposed thermal pad for efficient mounting

Attenuators Applications

• RF signal path conditioning in wireless communication systems
• Attenuation control in test and measurement instrumentation
• Signal level adjustment in radar and electronic warfare subsystems

Attenuators Procurement Notes

Verify the current lifecycle status before procurement as this component may be obsolete or end-of-life. Confirm that the 20-WFQFN package dimensions align with your PCB footprint requirements. Ensure that the 50 Ohm impedance specification matches your system design. Check for any specific handling instructions related to the exposed pad thermal connection during assembly.

Attenuators Selection Notes

Select this component when variable attenuation is required within the 0 Hz to 4 GHz bandwidth. Consider the 15.5 dB nominal attenuation range and 2.25 dB maximum insertion loss against your link budget requirements. The 20-WFQFN package size should be evaluated against available board space. Verify that the 50 Ohm impedance is suitable for your transmission line architecture.

Attenuators Part Context

This part belongs to the pSemi family of RF attenuators, which are integrated circuits designed for precise signal control. These components typically utilize proprietary semiconductor processes to achieve stable performance across varying frequencies. The 4305-52 specifically addresses needs for compact, high-frequency attenuation solutions in modern RF designs.

Attenuators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is listed as obsolete, alternative parts must be identified through independent cross-reference tools or manufacturer recommendations based on electrical equivalence.