HMC891ALP5E

Overview

The HMC891ALP5E is a monolithic microwave integrated circuit (MMIC) tunable band-pass filter operating from 1.95 GHz to 3.4 GHz. It features a user-selectable passband frequency controlled by analog voltages between 0 V and 14 V applied to the VFCTL and VBWCTL pins. The device provides a 3 dB bandwidth of approximately 9% and a 20 dB bandwidth of approximately 23%. Key electrical specifications include an insertion loss of 8 dB, return loss of 10 dB, input third-order intercept point (IP3) of 32 dBm, and amplitude settling time of 200 ns. It is housed in a 32-lead, 5 mm x 5 mm LFCSP package.

Feature Summary

• Monolithic design offering dynamic tuning as a compact alternative to mechanically tuned filters
• Independent control of center frequency and bandwidth via analog voltage inputs
• Low residual phase noise and excellent microphonics resistance

Applications

• Testing and measurement equipment
• Military radar and electronic warfare/electronic countermeasure systems
• Satellite communication and space applications
• Industrial and medical equipment

Procurement Notes

Verify the specific ordering suffix when purchasing. The standard part number is HMC891ALP5E, while HMC891ALP5ETR indicates reel packaging. Confirm RoHS compliance status and ensure the procurement channel sources directly from Analog Devices or authorized distributors to guarantee authenticity and traceability for critical RF applications.

Selection Notes

Select this component when a single-chip solution is required to replace bulky switched filter banks or cavity-tuned designs. Ensure the application requires a center frequency range between 1.95 GHz and 3.4 GHz with a fixed 9% bandwidth characteristic. Verify that the system can provide stable 0 V to 14 V control signals for both frequency and bandwidth tuning pins.

Part Context

This component belongs to the HMC891 series of tunable MMIC filters manufactured by Analog Devices. It serves as a direct replacement for larger mechanical tuning mechanisms in advanced communications architectures. The device integrates filtering functions into a small surface-mount package suitable for high-density PCB layouts.

Replacement Considerations

HMC891ALP5ETR is the reel-packaged version of this component. No other cross-model substitutes are documented in the official datasheet.