CSM4TH
Termination Insensitive Mixer
Rev. V3
Features
Product Image
LO 1 TO 3400 MHz
RF 1 TO 3400 MHz
IF 1 TO 2000 MHz
LO DRIVE +23 dBm (NOMINAL)
HIGH INTERCEPT +29 dBm (TYP.)
Description
The CSM4TH is a termination insensitive mixer, designed for use
in military, wireless, and test equipment applications. The design
utilizes Schottky bridge quad diodes, broadband ferrite baluns and
internal loads to provide excellent performance without degrada-
tion due to external VSWR mismatches. The use of high tem-
perature solder and welded assembly processes used internally
makes it ideal for use in semi-automated and automated assem-
bly. Environmental screening available to MIL-STD-883, MIL-STD
-202, or MIL-DTL-28837, consult factory.
Ordering Information
Part Number
Package
CSM4TH
Surface Mount
Electrical Specifications: Z0 = 50 Lo = +23 dBm (Downconverter application only)
Typical
Guaranteed
Parameter
Test Conditions
Units
+25ºC
-40º to +85ºC
SSB Conversion Loss
(max) &
SSB Noise Figure (max)
fR = 1 to 2400 MHz, fL = 1 to 2400 MHz, fI = 1 to 2000 MHz
fR = 1 to 3400 MHz , fL = 1 to 3400 MHz , fI = 1 to 2000 MHz
dB
dB
8.0
9.0
9.5
10.5
10.0
11.0
fL = 1 to 2400 MHz
fL = 2400 to 3400 MHz
35
25
26
20
24
18
L - R Isolation (min)
L - I Isolation (min)
R - I Isolation (min)
1 dB Conversion Comp.
Input IP3
dB
dB
fL = 1 to 2400 MHz
fL = 2400 to 3400 MHz
38
25
27
20
25
18
fR = 1 to 3400 MHz
fL= +23 dBm
dB
25
dBm
dBm
+19
fL = 100 to 3400 MHz, fI = 50 to 2000 MHz, fR = 100 to 3400 MHz
fR = 1 to 3400 MHz
+28
R-Port VSWR
2.0:1
2.0:1
2.0:1
L-Port VSWR
fL = 1 to 3400 MHz
I-Port VSWR
fI = 1 to 2000 MHz
1
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