PE43620A-Z

Overview

The PE43620A-Z is a 50-ohm, high linearity, 2-bit RF digital step attenuator (DSA) from the UltraCMOS series. It provides an attenuation range of 18 dB in discrete 6 dB steps. The device operates within a frequency range of 50 MHz to 3 GHz and features a typical insertion loss of 0.2 dB. It is housed in a QFN-12 package and supports a supply voltage of 3.3 V. The component functions across a temperature range of -40°C to +85°C.

Feature Summary

• Provides precise digital control over RF signal attenuation levels
• Utilizes high linearity UltraCMOS technology for signal integrity
• Offers compact surface-mount packaging for space-constrained designs

Applications

• RF signal path management in wireless communication systems
• Calibration and testing equipment requiring variable attenuation
• Base station and infrastructure RF front-end modules

Procurement Notes

Verify the specific suffix 'A-Z' against the manufacturer's current datasheet to confirm pinout and electrical specifications match your design requirements. Ensure compatibility with the 3.3 V logic interface. Confirm RoHS compliance status if required by your manufacturing standards before finalizing procurement orders.

Selection Notes

Select this component when a 50-ohm system impedance is required with coarse 6 dB step resolution. It is suitable for applications needing up to 18 dB of total attenuation within the 3 GHz bandwidth. Consider alternative models if finer step sizes or higher frequency operation beyond 3 GHz are necessary for the specific application.

Part Context

This part belongs to pSemi's UltraCMOS family of RF integrated circuits. It is specifically categorized as a digital step attenuator designed for silicon-based RF applications. The device serves as a key component for managing signal levels in modern wireless infrastructure and test equipment environments.

Replacement Considerations

Check for direct substitutes such as the PE43620 base model. Verify that any replacement maintains the same 50-ohm impedance, 2-bit resolution, and QFN-12 footprint to ensure mechanical and electrical compatibility without redesigning the PCB layout.