The HMC881LP5E is a MMIC low pass filter which features a user selectable cutoff frequency. The cutoff frequency can be varied from 2.2 to 4.0 GHz by applying a single analog tuning voltage between 0 and 14V. This low pass filter provides a low 3.8 dB insertion loss, 10 dB return loss and 1.25 x ƒcutoff stopband attenuation of >20 dB. This tunable filter can be used as a much smaller alternative to physically large switched filter banks and cavity tuned filters. The HMC881LP5E has excellent microphonics due to the monolithic design, and provides a dynamically adjustable solution in advanced communications applications. The low pass tunable filter is packaged in a RoHS compliant 5x5mm QFN leadless package. Applications * Test & Measurement Equipment * Military RADAR & EW/ECM * SATCOM & Space * R&D Laboratories * Fast Tuning Response; 150 ns * Excellent Wideband Rejection; 40 dB * Single Positive Supply: 0 to +14V * Low Insertion Loss & User Selectable Cutoff Frequency