PE43701MLI

Overview

The PE43701MLI is a 50-ohm RF digital step attenuator from the UltraCMOS family. It provides 7-bit resolution with an attenuation range of 0 to 31.75 dB in 0.25 dB steps. The device operates from DC to 6 GHz and features low insertion loss and high linearity. Packaged in a 32-VFQFN exposed pad, it utilizes standard CMOS logic for control.

Feature Summary

• UltraCMOS technology integration
• Digital step attenuation control
• High linearity performance

Applications

• Wireless communication infrastructure
• Test and measurement equipment
• Phased array antenna systems

Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued or obsolete. Confirm package integrity and pin compatibility during replacement planning. Request original manufacturer documentation to validate specifications against current supply sources.

Selection Notes

Select this component for applications requiring precise digital attenuation control within the specified frequency range. Ensure system design accommodates the 32-VFQFN package thermal requirements. Verify that the control interface logic levels match the host processor capabilities.

Part Context

This model belongs to the pSemi UltraCMOS series of RF attenuators. It represents a specific variant within the PE437xx family designed for high-frequency applications. The device leverages silicon-on-insulator technology for improved performance compared to standard CMOS processes.

Replacement Considerations

PE43712B-Z is a confirmed substitute part number available from pSemi.