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Product Detailed Parameters
- Description：IC FILTER BAND PASS 32SMT
- Series：-
- Mfr：Analog Devices Inc.
- Package：Strip
- Filter Type：Band Pass
- Frequency - Cutoff or Center：-
- Number of Filters：1
- Filter Order：-
- Voltage - Supply：0V ~ 14V
- Mounting Type：Surface Mount
- Package / Case：32-VFQFN Exposed Pad
- Supplier Device Package：32-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The HMC891LP5E is a monolithic microwave integrated circuit (MMIC) bandpass filter with a user-selectable passband frequency. It operates within a center frequency range of 2 to 3.9 GHz, controlled by an analog voltage between 0 and 14V. The device features a typical 3 dB bandwidth of approximately 9% and a 20 dB bandwidth of 27%. Key electrical specifications include an insertion loss of 7 dB, return loss of 10 dB, and maximum linear input power of 10 dBm. It utilizes a 32-lead QFN package measuring 5x5 mm.
Feature Summary
- Provides a dynamically adjustable solution for advanced communications applications
- Offers excellent microphonics performance due to its monolithic design
- Serves as a single-chip replacement for mechanically tuned designs
Applications
- Test & Measurement Equipment
- Military RADAR & EW/ECM
- SATCOM & Space
- Industrial & Medical Equipment
Procurement Notes
Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or Analog Devices directly. Ensure that any substitute components meet the required RF specifications and pin compatibility for your specific application design.
Selection Notes
Select this component when a compact, tunable bandpass filter is needed to replace bulky switched filter banks. Consider the 0 to 14V control voltage requirements for your driver circuitry. Evaluate the 7 dB insertion loss and 10 dB return loss against system link budget constraints.
Part Context
This part belongs to the Hittite Microwave Corporation product line, now part of Analog Devices Inc. It is designed for surface-mount technology (SMT) integration. The device is housed in a RoHS-compliant low-stress injection molded plastic package with matte tin lead finish.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. As the HMC891LP5E is marked obsolete, consult Analog Devices technical support for current equivalent recommendations.
FAQ
What is the tuning speed of the HMC891LP5E?
The full band tuning response time is typically 200 ns.
How is the center frequency controlled?
The center frequency is varied by applying an analog tune voltage (Vfctl) between 0 and 14V.
What is the rejection performance of the filter?
The filter provides excellent wideband rejection of 30 dB at the re-entry frequency of 22 GHz.
