HMC881LP5E
v01.0110
Typical Applications
Features
The HMC881LP5E is ideal for:
Fast Tuning Response; 150 ns
• Test & Measurement Equipment
Excellent Wideband Rejection; 40 dB
• Military RADAR & EW/ECM
Single Positive Frequency Control: 0 to +14V
• SATCOM & Space
Low Insertion Loss &
User Selectable Cutoff Frequency
• Industrial & Medical Equipment
TE
Single Chip Replacement
for Mechanically Tuned Designs
32 Lead 5x5 mm SMT Package
General Description
Functional Diagram
LE
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.
B
SO
FILTERS - TUNABLE - SMT
3
FILTER - TUNABLE, LOW PASS SMT
2.2 - 4.0 GHz
Electrical Specifications, TA = +25°C
Parameter
O
Passband
ƒcutoff [1] Tuning Range
Min.
Typ.
Max.
Units
0
4
GHz
2.2
4
GHz
Stopband Frequency (Rejection >20 dB)
1.25 x ƒcutoff
GHz
Re-entry Frequency (Rejection
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