DM M - Seres
2 i
DOUBLE BALANCED M I
XER
1 t 1400 M Hz/+7 t +13 dBm LO /SM A Connect s
o
o
or
PRINCIPAL SPECIFICATIONS
RF/LO
Model Frequency,
Number
MHz
DMM-2-250 1 - 500
IF
Frequency,
MHz
DC - 500
Operating
Range,
MHz
1 - 100
100 - 400
400 - 500
10 - 200
200 - 500
500 - 1000
20 - 200
200 - 1000
1000 -1400
Conversion
Loss, dB,
Max. Typ.
7.5
6.5
7.5
6.5
9.0
7.5
7.5
6.5
7.5
7.0
8.0
7.0
8.5
7.5
8.5
7.5
9.5
8.5
Port Isolation, Min.
L-R
L-X
R-X
dB
dB
dB
45
35
15
30
20
15
30
20
15
45
35
15
30
15
15
30
15
15
40
30
15
25
15
10
25
15
10
Polarity
Sense
Pos.
DMM-2-500 10 - 1000
DC - 500
Pos.
DMM-2-750 20 - 1400
DC - 500
Pos.
All specifications are as measured in a 50Ω system, at nominal LO power, in a downconverter application
Package Outline
Typical of DMM-2-250 & 750
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over millimeters.
3. Weight: 0.65 oz (18 g).
4. SMA female, to mate with male per MIL-C-39012.
General Notes:
The DMM-2 series of Double Balanced Mixers covers the frequency
range of 1 to 1400 MHz using selected diodes in the ring modulator to
produce a low level mixer with high performance.
23Feb96
GENERAL SPECIFICATIONS
Impedance:
50
Ω
nom.
Noise Figure:
Within
±1
dB of
Conversion Loss
LO Drive:
+7 nom.
1 dB Compression Point: 0 dBm typ.
1 dB Desensitization Level: – 2 dBm
Input Intercept Point:
+12 dBm typ.
Operating Temperature:
– 55° to +85°C
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MERRIMAC [ MERRIMAC INDUSTRIES, INC. ]
