PE43704B-Z

Overview

The PE43704B-Z is a high-linearity, 7-bit RF digital step attenuator utilizing HaRP™ technology. It operates within a frequency range of 9 kHz to 8 GHz with a 50 Ohm impedance. The device provides an attenuation range of 0 dB to 31.75 dB in 0.25 dB steps. Key electrical parameters include a maximum insertion loss of 2.4 dB and a maximum power handling of 28 dBm up to 8 GHz. It functions on a supply voltage of 5.5 V and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• HaRP™ technology-enhanced architecture for high linearity performance
• 7-bit resolution enabling precise 0.25 dB step control
• Wideband operation covering frequencies from 9 kHz to 8 GHz
• High power handling capability suitable for demanding RF environments

Applications

• Wireless infrastructure base stations
• Test and measurement equipment
• Military and aerospace radar systems
• Satellite communication terminals

Procurement Notes

Verify the specific suffix 'B-Z' against the manufacturer's current datasheet to confirm package type and RoHS compliance status. Ensure the ordering code matches the required tape and reel quantity specifications. Cross-reference the HTSUS classification for accurate import documentation. Confirm that the active part status remains unchanged prior to final procurement authorization.

Selection Notes

Select this component when wide bandwidth up to 8 GHz and high linearity are critical requirements. The 7-bit resolution offers fine attenuation control compared to lower-bit alternatives. Consider the 50 Ohm system impedance compatibility for standard RF applications. Evaluate the thermal management needs given the specified operating temperature range and power handling limits.

Part Context

This device belongs to the UltraCMOS® series manufactured by pSemi, leveraging advanced Silicon-on-Insulator (SOI) structures. The HaRP™ technology platform enhances linearity and power handling beyond standard CMOS implementations. It serves as a general-purpose RF digital step attenuator designed for integration into complex wireless communication systems requiring reliable signal level adjustment.

Replacement Considerations

The PE43705B-Z is a documented related product within the same family, offering similar functionality but potentially different frequency or bit-resolution characteristics. Verify pinout compatibility and electrical parameter overlaps before substitution. Consult official pSemi documentation for direct cross-reference recommendations.