PE43712B-Z

Overview

The PE43712B-Z is a 50Ω, 7-bit RF digital step attenuator (DSA) utilizing pSemi’s HaRP™ technology. It operates within a frequency range of 9 kHz to 6 GHz and provides an attenuation control range of 0 dB to 31.75 dB. The device features a minimum step size of 0.25 dB and supports a 1.8V control voltage interface. It is housed in a 32-VFQFN package with an exposed pad and is rated for an extended operating temperature range up to +105°C.

Feature Summary

• HaRP™ technology-enhanced design for improved linearity and performance
• Digital step control via low-voltage logic interface
• Extended operational temperature capability for demanding environments

Applications

• Broadband wireless infrastructure systems
• Test and measurement equipment requiring precise signal attenuation
• Phased array antenna beamforming networks

Procurement Notes

Verify the specific suffix 'B-Z' against the manufacturer's current datasheet to confirm the extended temperature rating and RoHS compliance status. Ensure the ordering information matches the exact package variant and electrical specifications required for the target application environment.

Selection Notes

Select this component when a wide bandwidth up to 6 GHz and fine resolution are required. The 7-bit architecture offers high precision with 0.25 dB steps. Consider the 1.8V control requirement and the thermal management needs associated with the +105°C rating during system integration.

Part Context

This part belongs to the UltraCMOS series of RF attenuators from pSemi. It represents a specialized solution for applications needing high dynamic range and stability across a broad spectrum, distinguishing it from standard CMOS attenuators through its proprietary HaRP™ enhancement.

Replacement Considerations

Direct substitutes include other 7-bit DSAs from pSemi such as the PE43712 or PE43713, provided they match the 32-VFQFN footprint and 6 GHz frequency limit. Verify pin compatibility and control voltage levels before substitution.