PE43711B-Z

Overview

The PE43711B-Z is a 50Ω, HaRP™ technology-enhanced, 7-bit RF digital step attenuator (DSA) from pSemi. It supports a broad frequency range from 9 kHz to 6 GHz with an attenuation value of 0dB to 31.75dB. The component operates within the UltraCMOS® series and features a 24-QFN package. It is designed for high-performance applications requiring precise digital control over signal attenuation levels across wide bandwidths.

Feature Summary

• HaRP™ technology enhancement for improved linearity and performance
• 7-bit resolution providing precise digital step attenuation control
• Broad frequency coverage from low frequencies up to 6 GHz
• Glitch-free attenuation state transitions for stable signal integrity

Applications

• 3G/4G wireless infrastructure systems
• Test and measurement equipment requiring variable attenuation
• Phased array antenna beamforming networks
• Software-defined radio front-ends

Procurement Notes

Verify the specific suffix 'B-Z' against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Ensure that the ordering information matches the exact package type and tape/reel specifications required for your assembly process. Cross-reference the part number with official pSemi documentation to avoid substitution errors with similar models in the UltraCMOS family.

Selection Notes

Select this component when a wide frequency range extending down to 9 kHz is required alongside high-frequency operation up to 6 GHz. The 7-bit resolution offers a balance between control precision and interface complexity. Consider the HaRP™ technology benefits for applications demanding high linearity and low distortion in RF signal paths compared to standard CMOS attenuators.

Part Context

This device belongs to pSemi's UltraCMOS® series of RF components, leveraging proprietary HaRP™ technology. It is part of a family of digital step attenuators designed for modern communication systems. The PE43711B-Z specifically addresses the need for wideband, digitally controlled attenuation in compact form factors suitable for dense electronic assemblies.

Replacement Considerations

PE43711A-Z

FAQ

What is the maximum attenuation value supported by the PE43711B-Z?

The PE43711B-Z supports a maximum attenuation value of 31.75dB.

Does the PE43711B-Z support glitch-free operation?

Yes, the device is designed to provide glitch-free attenuation state transitions.