CHM1192
Ref. : DSCHM11929042
1/6
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
K- Band Mixer
GaAs Monolithic Microwave IC
Description
The CHM1192 is a balanced Schottky
diode mixer based on a six-quarter wave
ring structure. It could be use in receiver or
transmitter part.
This circuit is manufactured with the
Schottky diode process : 1 m Schottky
diode device, air bridges, via holes through
the substrate, stepper lithography.
It is available in chip form.
An electrically identical chip with a mirror
drawing versus de LO side is available
under the part number CHM1193. These
two MMICs could be helpful in a TX, RX
architecture module.
Main Features
36-38 GHz LO frequency range
IF from 1 to 3 GHz
Low conversion loss up & down
High LO/RF isolation
Low LO input power
Small chip size: 1.53 x 1.53 x 0.10 mm
LO
RF
IF
-12
-10
-8
-6
-4
-2
35
36
37
38
39
40
LO Frequency (GHz)
Conversion gain (dB)
IF=2GHz
Typical conversion characteristic
(measurement in test fixture)
Main Characteristics
Tamb. = 25C
Symbol
Parameter
Typ
Unit
F_LO,
LO frequency range
36-38
GHz
F_IF
IF frequency range
1 - 3
GHz
Lc
Conversion loss
7
dB
I_LO/RF
LO/RF isolation
30
dBc
ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !
CHM1192
K-Band MIXER
Ref. DSCHM11929042
2/6
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
Symbol
Parameter
Min
Typ
Max
Unit
F_LO
LO frequency range
36
38
GHz
F_IF
IF frequency range
1
3
GHz
Lc
Conversion loss @ P_LO=7dBm (1)
7
dB
P_LO
LO input power
5
7
9
dBm
P-1dB
Input power for 1dB compression
@ P_LO = 9dBm
0
dBm
VSWR_LO
LO port VSWR (50
) (2)
2.5:1
VSWR_RF
RF port VSWR (50
) (2)
2.5:1
VSWR_IF
IF port VSWR (50
) (2)
2.5:1
I_LO/RF
LO/RF isolation
30
dBc
(1) On wafer measurements.
(2) Depends on the wire bonding conditions and on the external-matching network.
Absolute Maximum Ratings
(3)
Tamb = +25C
Symbol
Parameter
Values
Unit
P_LO
Maximum peak input power overdrive at LO port (4)
10
dBm
P_RF
Maximum peak input power overdrive at RF port (4)
10
dBm
P_IF
Maximum peak input power overdrive at IF port (4)
10
dBm
Top
Operating temperature range
-40 to +85
C
Tstg
Storage temperature range
-55 to +125
C
(3) Operation of this device above anyone of these parameters may cause permanent damage.
(4) Duration < 1s
K-Band MIXER
CHM1192
Ref. : DSCHM11929042
3/6
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
Typical test fixture measurements
Tamb. = 25C
A) Down- converter
-12
-10
-8
-6
-4
-2
35
36
37
38
39
LO Frequency (GHz)
Conversion gain (dB)
IF=2GHz
-12
-10
-8
-6
-4
-2
0
1
2
3
4
IF Frequency (GHz)
Conversion gain (dB)
LO=37GHz
Conversion gain versus LO frequency Conversion gain versus IF frequency
LO Input power= 9dBm
LO Input power= 9dBm
B) Up- converter
-12
-10
-8
-6
-4
-2
35
36
37
38
39
40
LO Frequency (GHz)
Conversion gain (dB)
IF=2GHz
-12
-10
-8
-6
-4
-2
0
1
2
3
4
IF Frequency (GHz)
Conversion gain (dB)
LO=37GHz
Conversion gain versus LO frequency Conversion gain versus IF frequency
LO Input power= 9dBm
LO Input power= 9dBm
CHM1192
K-Band MIXER
Ref. DSCHM11929042
4/6
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
C) Compression point and Return loss
-12
-10
-8
-6
-4
-2
0
2
-2
0
-1
9
-1
8
-1
7
-1
6
-1
5
-1
4
-1
3
-1
2
-1
1
-1
0
-9 -8 -7 -6 -5 -4 -3 -2 -1 0
RF Input power (dBm)
Conversion gain (dB)
IF=2GHz
LO=37GHz
-12
-10
-8
-6
-4
-2
0
2
-1
3
-1
2
-1
1
-1
0
-9 -8 -7 -6 -5 -4 -3 -2 -1 0
1
2
3
4
IF Input power (dBm)
Conversion gain (dB)
IF=2GHz
LO=37GHz
Input compression point versus RF power
Input compression point versus IF power
LO Input power= 9dBm
LO Input power= 9dBm
-25
-20
-15
-10
-5
0
0
0,5
1
1,5
2
2,5
3
3,5
4
IF frequency (GHz)
Return loss (dB)
LO=37GHz
IF Return loss
LO input power = 9dBm
K-Band MIXER
CHM1192
Ref. : DSCHM11929042
5/6
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
Chip Mechanical Data
(dimensions are in m)
1530 +/-35
1080
1530 +/- 35
70
215
420
Chip size (including saw streets) : 1530 x 1530
35m
Thickness: 100m
10m
Pin
Description
LO
LO input signal
RF
RF input or output signal
IF
IF input or output signal
An electrically identical chip with a mirror drawing versus de LO side is available under the
part number CHM1193.
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