CHM1190
K Band Mixer
GaAs Monolithic Microwave IC
Description
The CHM1190 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 BES-
MMIC process: 1 µm Schottky diode
device, air bridges, via holes through the
substrate, stepper lithography.
An electrically identical chip with a mirror
drawing versus de LO side is available
under the part number CHM1191. These
two MMICs could be helpful in a TX, RX
architecture module.
It is available in chip form.
LO
IF
RF
-2
IF=2GHz
Conversion gain (dB)
-4
-6
-8
-10
-12
21
22
23
LO Frequency (GHz)
24
25
Main Features
■
22-24 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: 1.73 x 1.53 x 0.10 mm
Typical conversion characteristic
(measurement in test fixture)
Main Characteristics
Tamb. = 25°C
Symbol
F_LO,
F_IF
Lc
I_LO/RF
Parameter
LO frequency range
IF frequency range
Conversion loss @ P-LO = 7dBm
LO/RF isolation
Typ
22-24
1-3
7
30
Unit
GHz
GHz
dB
dBc
ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !
Ref. :DSCHM11909025
1/6
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France
Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
CHM1190
Electrical Characteristics
Tamb. = 25°C
Symbol
F_LO
F_IF
Lc
P_LO
P-1dB
VSWR_LO
VSWR_RF
VSWR_IF
I_LO/RF
K band Mixer
Parameter
LO frequency range
IF frequency range
Conversion loss @ P-LO = 7dBm (1)
LO input power
Input 1dB compression
LO port VSWR (50Ω) (2)
RF port VSWR (50Ω) (2)
RF port VSWR (50Ω) (2)
LO/RF isolation
Min
22
1
Typ
Max
24
3
Unit
GHz
GHz
dB
7
5
7
7
2.5:1
2.5:1
2.5:1
30
9
dBm
dBm
dBc
(1) On wafer measurements.
(2) Depends on the wire bonding conditions and on the external matching network.
Absolute Maximum Ratings
(1)
Tamb = +25°C
Symbol
P_LO
P_RF
P_IF
Top
Tstg
Parameter
Maximum peak input power overdrive at LO port (2)
Maximum peak input power overdrive at RF port (2)
Maximum peak input power overdrive at IF port (2)
Operating temperature range
Storage temperature range
Values
10
10
10
-40 to +85
-55 to +125
Unit
dBm
dBm
dBm
°C
°C
(1) Operation of this device above anyone of these parameters may cause permanent damage.
(2) Duration < 1s
Ref. : DSCHM11909025
2/6
Specifications subject to change without notice
Route Départementale 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
Typical test fixture measurements
Tamb. = 25°C
A) Down- converter
-2
-2
CHM1190
IF=2GHz
Conversion gain (dB)
-4
-6
-8
-10
-12
21
22
23
LO Frequency (GHz)
24
25
Conversion gain (dB)
-4
-6
-8
-10
-12
0
LO=23GHz
1
2
IF Frequency (GHz)
3
4
Conversion gain versus LO frequency
LO Input power= 9dBm (1)
Conversion gain versus IF frequency
LO Input power= 9dBm (1)
B) Up- converter
-2
Conversion gain (dB)
Conversion gain (dB)
-4
-6
-8
-10
-12
21
22
23
LO Frequency (GHz)
24
25
-2
IF=2GHz
-4
-6
-8
-10
-12
0
LO=23GHz
1
2
IF Frequency (GHz)
3
4
Conversion gain versus LO frequency
LO Input power= 9dBm (1)
Conversion gain versus IF frequency
LO Input power= 9dBm (1)
2
Conversion gain (dB)
2
Conversion gain (dB)
0
-2
-4
-6
-8
-10
-12
0
IF=2GHz
LO=23GHz
0
-2
-4
-6
-8
-10
-12
IF=2GHz
LO=23GHz
1
2
3
4
5
6
7
8
9
10
RF Input power (dBm)
-5 -4 -3 -2 -1
0
1
2
3
4
5
6
7
8
9 10
IF Input power (dBm)
Input compression point versus RF power
LO Input power= 9dBm (1)
Input compression point versus IF power
LO Input power= 9dBm (1)
Ref. : DSCHM11909025
3/6
Specifications subject to change without notice
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
CHM1190
K band Mixer
0
Return loss (dB)
Return loss (dB)
-5
-10
-15
-20
-25
21
22
23
LO frequency (GHz)
24
25
0
-5
-10
-15
LO=23GHz
-20
-25
22
23
24
RF frequency (GHz)
25
26
LO Return loss (1)
LO input power = 9dBm
RF Return loss (1)
LO input power = 9dBm
0
Return loss (dB)
-5
-10
-15
-20
-25
0
1
2
IF frequency (GHz)
3
4
OL=23GHz
IF Return loss
LO input power = 9dBm
(1)
This measurement is made with an external matching network. See application note for
further information.
Ref. : DSCHM11909025
4/6
Specifications subject to change without notice
Route Départementale 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
Chip Mechanical Data
(dimensions are in µm)
CHM1190
70
1730 +/- 35
1020
96
300
180
1530+/-35
Chip size (including saw streets) : 1730 x 1530
±
35µm
Thickness: 100µm
±
10µm
Pin
LO
RF
IF
LO input signal
Description
RF input or output signal
IF input or output signal
An electrically identical chip with a mirror drawing versus de LO side is available under the
part number CHM1191.
Ref. : DSCHM11909025
5/6
Specifications subject to change without notice
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
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