CHR2297
Ref. : DSCHR22973146 - 26 May 03
1/3
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Dpartementale 128 - B.P.46 - 91401 Orsay Cedex France
Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
36-44GHz Multifunction (MFC) Down-Converter
GaAs Monolithic Microwave IC
Description
The CHR2297 is a multifunction chip (MFC)
which integrates a LO buffer amplifier, an IF
amplifier and a single cold FET mixer. It is
usable for down-conversion. It is designed for a
wide range of applications, from military to
commercial communication systems.
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, 0.25m gate length, via holes through
the substrate, air bridges and electron beam
gate lithography.
It is available in chip form.
Main Features
Broadband performance : 36-44 GHz RF
2.5dB conversion gain
0dBm LO input power
+8dBm input power (1dB gain comp.)
DC power consumption, 60mA @ 4.25V
Chip size : 1.43 x 1.89 x 0.10 mm
Main Characteristics
Tamb. = 25C
Parameter
Min
Typ
Max
Unit
F
RF
RF frequency range
36
44
GHz
F
LO
LO frequency range
30
39
GHz
F
IF
IF frequency range
2
6
GHz
G
c
Conversion
Gain
2.5 dB
ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !
Down converter
LO
IF
RF
CHR2297
36-44GHz MFC Down-Converter
Ref. : DSCHR22973146 - 26 May 03
2/3
Specifications subject to change without notice
Route Dpartementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
Electrical Characteristics
Tamb = +25C, Vd = 4.25V
Symbol Parameter Min
Typ
Max
Unit
F
RF
RF frequency range
36
44
GHz
F
LO
LO frequency range
30
39
GHz
F
IF
IF frequency range
2
6
GHz
G
c
Conversion
Gain
2.5 dB
P
LO
LO Input power
0
dBm
LO_IF Lk LO Leakage on IF (for P
LO
=0dBm)
-20
dBm
LO_RF Lk LO Leakage on RF (for P
LO
=0dBm)
-25
dBm
RF_IF Lk RF Leakage on IF (for P
RF
=-5dBm)
-50
dBm
P1dB
Input power at 1dB gain compression
+8
dBm
LO Match LO Matching
2.0:1
RF Match RF Matching
2.0:1
IF Match IF Matching
2.0:1
Id Bias
current
80 mA
A wire bond of typically 0.1 to 0.15 nH will improve the input and output matching.
Absolute Maximum Ratings
Tamb = +25C
Symbol Parameter
Values
Unit
Vd
Drain bias voltage
4.5 V
Id
Drain bias current
80 mA
Ta
Operating temperature range
-40 to +85 C
Tstg
Storage temperature range
-55 to +125 C
(1) Operation of device above anyone of these parameters may cause permanent damage.
36-44GHz MFC Down-Converter
CHR2297
Ref. : DSCHR22973146 - 26 May 03
3/3
Specifications subject to change without notice
Route Dpartementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
Ordering Information
Chip form
:
CHR2297-99F/00
Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors
S.A.S. assumes no responsibility for the consequences of use of such information nor for any infringement of
patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of United Monolithic Semiconductors S.A.S.. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. United Monolithic Semiconductors S.A.S. products are not authorised for use
as critical components in life support devices or systems without express written approval from United
Monolithic Semiconductors S.A.S.
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