PE4312C-Z

Overview

The PE4312C-Z is a 6-bit digital step attenuator from the UltraCMOS series, manufactured by pSemi. It operates within a frequency range of 1 MHz to 4 GHz with a 50-ohm impedance. The device provides a total attenuation range of 31.5 dB with a minimum step size of 0.5 dB. Key electrical parameters include an insertion loss of 2.1 dB and a maximum operating temperature of +105°C, with a minimum of -55°C. It features a single channel and is housed in a QFN-20 package.

Feature Summary

• Utilizes UltraCMOS technology for high-performance RF signal control
• Provides precise digital step attenuation with 0.5 dB resolution
• Supports wide frequency operation up to 4 GHz
• Designed for robust performance across extended industrial temperature ranges

Applications

• 3G/4G wireless infrastructure systems
• High-performance RF test and measurement equipment
• Broadband wireless connectivity solutions
• RF signal path calibration and gain control circuits

Procurement Notes

Verify the specific suffix 'Z' indicates RoHS compliance and lead-free status as per manufacturer specifications. Confirm the QFN-20 package dimensions match PCB footprint requirements. Ensure thermal pad connection guidelines are followed during assembly to maintain optimal thermal performance and electrical grounding. Cross-reference datasheet revision dates for latest electrical characteristics.

Selection Notes

Select this component when a 6-bit resolution is sufficient for system gain control needs. Consider the 2.1 dB insertion loss impact on overall link budget. Evaluate the 4 GHz upper frequency limit against application signal frequencies. Compare power consumption and control interface requirements with alternative attenuators if lower bit counts or different form factors are required.

Part Context

The PE4312C-Z belongs to the UltraCMOS family of RF digital step attenuators from pSemi. This series integrates advanced CMOS technology to deliver low-loss, high-linearity performance in compact packages. The C-Z variant specifically denotes the commercial temperature grade and RoHS-compliant packaging configuration within the broader PE4312 product line.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.