HMC641ALC4TR

RF Switches Overview

The HMC641ALC4TR is a broadband non-reflective Single Pole Four Throw (SP4T) RF switch manufactured by Analog Devices Inc. utilizing GaAs pHEMT technology. It operates from DC to 20 GHz with a 50 Ohm impedance. The device features an integrated TTL decoder for control logic. Key electrical parameters include a typical insertion loss of 2.3 dB and isolation of 40 dB. It supports a P1dB compression point of 25 dBm and an Input IP3 of 41 dBm. The component is housed in a compact 24-QFN (4x4 mm) package with exposed pad, suitable for surface mount installation.

RF Switches Feature Summary

• Broadband non-reflective SP4T topology covering DC to 20 GHz
• Integrated TTL decoder for simplified digital control
• High linearity performance with significant isolation capabilities
• Compact ceramic QFN package design

RF Switches Applications

• VSAT communication systems
• Wireless infrastructure equipment
• Test and measurement instrumentation

RF Switches Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration when sourcing. Confirm RoHS compliance status and MSL rating requirements against current project specifications. Ensure the supplier provides valid traceability documentation for this Analog Devices part number. Cross-reference the datasheet revision date to ensure compatibility with latest design guidelines.

RF Switches Selection Notes

Select this component for applications requiring wideband switching from DC to 20 GHz with low reflection characteristics. The integrated decoder simplifies interface requirements compared to variants without control logic. Consider the 24-QFN thermal pad for heat dissipation needs. Evaluate the 2.3 dB insertion loss and 40 dB isolation metrics against system link budget constraints.

RF Switches Part Context

This part belongs to the HMC641 series of high-performance RF switches. It shares the core SP4T functionality with other variants like HMC641LC4-AN but differs in packaging and control interface integration. The LC4 designation typically denotes the specific leadframe and package construction used for this commercial grade component.

RF Switches Replacement Considerations

HMC641ALP4ETR is a pin-compatible alternative in a plastic QFN package. HMC641A-SX offers similar functionality but with different frequency limits and no integrated decoder.