PE43502MLI-Z

Overview

The PE43502MLI-Z is a variable attenuator manufactured by pSemi, designed for wireless and RF communication applications. It operates within a frequency range of 0.009 MHz to 6000 MHz. The device features a maximum insertion loss of 2.8 dB and a nominal attenuation of 7.75 dB. It has a characteristic impedance of 50 Ω and supports a maximum continuous wave input power of 23.01 dBm. The component is housed in a QFN-32 package with dimensions of 5 x 5 mm and a height of 0.85 mm. It functions within an operating temperature range of -40 °C to 85 °C.

Feature Summary

• CMOS compatible serial-addressable control interface
• High linearity performance with low insertion loss
• Maintains high attenuation accuracy over frequency and temperature variations
• Low power consumption with stable performance independent of supply voltage due to on-board regulator

Applications

• Wireless communication systems
• RF and microwave signal processing
• Test and measurement equipment

Procurement Notes

Verify the specific part number PE43502MLI-Z against official pSemi documentation to confirm current availability status. Check datasheets for RoHS compliance and JESD-609 code e3 specifications. Ensure the QFN-32 package dimensions match design requirements. Confirm operating temperature ranges and electrical parameters align with system constraints before procurement.

Selection Notes

Select this component for applications requiring precise digital step attenuation in the VHF/UHF/SHF bands. Consider the 5-bit resolution and 0.25 dB step size for fine-tuning needs. Evaluate the CMOS interface compatibility with existing control logic. Assess thermal management requirements given the 85 °C maximum operating temperature limit and the compact QFN footprint.

Part Context

The PE43502MLI-Z belongs to the Peregrine series of RF Digital Step Attenuators (DSA). It utilizes UltraCMOS technology, a patented silicon-on-insulator process on a sapphire substrate. This family of components is known for high linearity and versatility in RF signal path management. The device is part of pSemi's portfolio of semiconductor solutions for advanced communication technologies.

Replacement Considerations

The PE43501MLI-Z is a related model in the same series with similar characteristics but may differ in specific attenuation ranges or pin configurations. Verify functional equivalence and parameter alignment before substitution. No other direct public substitute part numbers are confirmed in the provided data.