HMC881ALP5E

Overview

The HMC881ALP5E is a monolithic microwave integrated circuit (MMIC) low-pass filter manufactured by Analog Devices Inc. It features a user-selectable cutoff frequency adjustable from 2.4 GHz to 4 GHz via an analog tuning voltage applied between 0 V and 14 V at the VFCTL pin. The device operates within a temperature range of -40°C to +85°C and is housed in a 32-lead, 5 mm × 5 mm LFCSP package. Key electrical specifications include a typical insertion loss of 3 dB, a return loss of 16.5 dB, and stopband attenuation greater than 20 dB at 1.35 times the cutoff frequency. The component supports a maximum input power of 10 dBm for linear operation and exhibits an amplitude settling time of 200 ns.

Feature Summary

• Single-chip tunable low-pass filter replacing mechanically tuned designs
• Wideband rejection capability exceeding 35 dB
• Low microphonics due to monolithic construction
• RoHS compliant packaging

Applications

• Testing and measurement equipment
• Military radar and electronic warfare/electronic countermeasures (ECMs)
• Satellite communication and space systems
• Industrial and medical equipment

Procurement Notes

Verify the specific ordering suffix when sourcing components. The standard tape-and-reel option is designated as HMC881ALP5ETR. Confirm that the procurement channel provides RoHS-compliant units matching the CP-32-12 package description. Ensure storage conditions account for Moisture Sensitivity Level 3 ratings to prevent damage during assembly processes.

Selection Notes

Select this component for applications requiring dynamic adjustment of the passband edge without mechanical switching. The device requires a single analog control voltage ranging from 0 V to 14 V to tune the cutoff frequency. Designers must ensure the control circuit can supply the necessary voltage swing while maintaining low noise to preserve signal integrity. External 100 pF series capacitors are required on the RF input and output ports for DC isolation.

Part Context

The HMC881ALP5E belongs to the HMC881A series of tunable filters from Analog Devices. It serves as a compact alternative to physically large switched filter banks or cavity-tuned filters. The device integrates the tuning mechanism directly into the MMIC, allowing for smaller form factors in advanced communications architectures compared to discrete tuning solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.