CHM1290 Datasheet, PDF (1/6 Pages) United Monolithic Semiconductors – 20-30GHz SUB-HARMONICALLY PUMPED MIXER

CHM1290
20-30GHz SUB-HARMONICALLY PUMPED MIXER
GaAs Monolithic Microwave IC
Description
The CHM1290 is a MFC which integrates a self
biased LO buffer amplifier and a sub-
harmonically diodes mixer for 2LO suppression
It is usable both for up-conversion and down-
conversion. It is designed for a wide range of
applications,
typically
commercial
communication systems for broadband local
access (LMDS). The backside of the chip is both
RF and DC grounds. This helps simplify the
assembly process.
The circuit is manufactured with a PM-HEMT
process, 0.25µm gate length, capacities over via
holes, via holes through the substrate, air
bridges and electron beam gate lithography.
It is available in chip form.
Main Features
• Broadband performance : 20-30GHz
• 10dB conversion Loss
• 29dB 2LO to RF isolation
• -4dBm LO input power
• -3dBm input power 1 dB compression
• Low DC power consumption, 33mA@4.0V
• Chip size : 0.86 X 1.28 X 0.10 mm
Main Characteristics
Tamb. = 25°C
Parameter
Min Typ Max Unit
F_RF
RF frequency range
F_LO
LO frequency range
F_IF
IF frequency range
L_c
Conversion Loss
20
10
DC
10
30
GHz
15
GHz
6
GHz
12
dB
ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !
Ref. : DSCHM12902045 - 14-Feb.-02
1/6
Specifications subject to change without notice
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