HMC899

Overview

The HMC899 is a monolithic microwave integrated circuit (MMIC) band pass filter designed for high-frequency applications. It features a user-selectable passband frequency with a center frequency tuning range spanning from 19 GHz to 38 GHz, controlled by an analog voltage between 0 V and 14 V. The device exhibits a typical 3 dB bandwidth of approximately 18% and a 20 dB bandwidth of roughly 35%. Key electrical specifications include a maximum insertion loss of 7 dB, a return loss of 10 dB, and an input IP3 of 25 dBm. The component operates within a temperature range of -55 °C to +85 °C and utilizes a die package measuring 2.5 x 1.2 x 0.10 mm.

Feature Summary

• Provides fast tuning response with phase settling to within 10 degrees in less than 100 ns.
• Delivers excellent wideband rejection capabilities suitable for demanding signal environments.
• Functions as a single-chip replacement for mechanically tuned designs, offering dynamic adjustability.

Applications

• Test & Measurement Equipment
• Military RADAR & EW/ECM Systems
• SATCOM & Space Communications
• Industrial & Medical Equipment

Procurement Notes

Verify the specific ordering suffix and packaging configuration required for your assembly process, as the datasheet indicates availability in waffle-pack or gel-pak formats. Confirm that the design accommodates the electrostatic sensitive device handling precautions specified for this MMIC. Ensure the control voltage driver circuit supports the required source/sink current of ±1 mA for optimal performance.

Selection Notes

Select the HMC899 when a dynamically adjustable band pass solution is needed to replace bulky switched filter banks or cavity-tuned filters. Consider the device's microphonics resistance due to its monolithic construction. Evaluate the residual phase noise performance at 100 kHz offset, which reaches -157 dBc/Hz, ensuring it meets system sensitivity requirements. Verify compatibility with the 0 to 14 V control voltage range provided by the system controller.

Part Context

The HMC899 belongs to the tunable SMT filter family produced by Analog Devices, formerly Hittite Microwave Corporation. This series includes various models covering different frequency ranges, such as the HMC897 and HMC899LP4E. These components are engineered to provide compact, electronically tunable filtering solutions for advanced communications and radar systems where size and weight constraints are critical.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Analog Devices resources for potential cross-references or updated product line replacements.