4280-52

Overview

The PE4280-52 is an UltraCMOS single-pole double-throw (SPDT) RF switch designed for cable television applications. It operates within a frequency range of 5 MHz to 2.2 GHz and features a 75 Ohm impedance topology. The device utilizes absorption circuit design to achieve high isolation, specified at 47 dB. It is housed in a compact 20-pin Quad Flat No-leads (QFN) package measuring 4x4 mm. This component integrates ultra-low insertion loss and high linearity characteristics suitable for broadband signal routing.

Feature Summary

• UltraCMOS technology integration for broadband CATV performance
• High isolation capability via absorption circuit design
• Compact 20-QFN footprint for space-constrained layouts

Applications

• Cable Television (CATV) signal distribution networks
• Broadband RF signal routing systems
• Telecommunications infrastructure requiring 75 Ohm impedance matching

Procurement Notes

Verify the specific ordering code suffix against current manufacturer documentation, as legacy Peregrine Semiconductor part numbers may have updated designations. Confirm availability status through authorized distributors, noting that this component may be subject to end-of-life or obsolescence notices. Ensure the 20-QFN package variant matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring 75 Ohm impedance matching for frequencies up to 2.2 GHz. The UltraCMOS process offers advantages in power consumption and switching speed compared to traditional MEMS or PIN diode solutions. Consider the 20-QFN package size constraints during layout planning to ensure adequate thermal dissipation and mechanical stability for the target application environment.

Part Context

The PE4280 series belongs to pSemi's portfolio of UltraCMOS RF switches, originally developed by Peregrine Semiconductor. These components leverage proprietary silicon-on-insulator technology to provide superior performance in cable and telecommunications markets. The 4280-52 specifically targets the CATV segment, offering a balance of low insertion loss and high isolation in a small form factor.

Replacement Considerations

Official substitute part numbers include PE4280MLIAA and PE4280MLIAA-Z. Verify pin compatibility and electrical specifications with the manufacturer before substitution.