HMC881LP5

HMC881LP5E v01.0110 FILTER - TUNABLE, LOW PASS SMT 2.2 - 4.0 GHz 3 FILTERS - TUNABLE - SMT Typical Applications The HMC881LP5E is ideal for: • Test & Measurement Equipment • Military, RADAR & EW • SATCOM & Space • R&D Laboratories Features Fast Tuning Response Excellent Wideband Rejection Single Positive Frequency Control: 0 to +14V Low Insertion Loss & User Selectable Cutoff Frequency Single Chip Replacement for Mechanically Tuned Designs 32 Lead 5x5 mm SMT Package: 25 mm2 Functional Diagram General Description 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. Electrical Specifi cations, TA = +25°C Parameter Passband ƒcutoff [1] Tuning Range Stopband Frequency (Rejection >20 dB) Re-entry Frequency (Rejection