DOUBLE BALANCED MIXERS
DMF-8A Series
500 kHz to2 GHz / +17 to+23 dBmLO/ +25 dBmThirdOrder Intercept / Flatpack
PRINCIPAL SPECIFICATIONS
RF/LO
Frequency, Frequency,
IF
Operating
Range,
MHz
Conversion
Loss, dB,
Max. Typ.
Port Isolation, Min.
Model
Number
L-R
dB
L-X
dB
R-X Polarity
dB
MHz
MHz
Sense
DMF-8A-250
DMF-8A-500
DMF-8A-700
0.5 - 500
DC - 500
0.5 - 1
1 - 300
300 - 500
8.0
7.0
8.0
7.0
6.0
7.0
40
40
35
30
30
20
23
23
20
Pos.
10 - 1000
10 - 1500
DC - 1000
DC - 1000
DC - 1000
10 - 50
50 - 500
500 -1000
7.5
7.5
8.5
6.5
6.5
7.5
35
30
25
30
25
15
25
20
15
Pos.
Neg.
Neg.
10 - 600
600 -1000
1000 -1500
8.0
8.0
9.5
7.0
7.0
8.5
30
20
20
20
12
12
15
15
8
DMF-8A-1700 500 - 2000
500 - 2000
8.0
6.0
25
25
15
All specifications are as measured in a 50Ω system, at nominal LO power, in a down converter application
Package Outline
GENERAL SPECIFICATIONS
LO Drive:
+20 dBm nom.
Ω
50 nom.
Impedance:
±
Noise Figure:
Within 1 dB of
Conversion Loss
1 dB Comp. Point:
Input Intercept Point:
+13 dBm input typ.
+25 dBm typ.
Maximum Input Power: 600 mW @ 25°C
(derate linearly to 0 mW @ 125°C)
DC Offset Voltage:
Weight:
Operating Temperature: – 55° to +85°C
5 mV typ.
0.1 oz (2.8 g)
NOTES:
1. Tolerance on 3 place decimals ±.010(.25) except as noted.
2. Dimensions in inches over millimeters.
3. Dimensions marked with * apply only at body.
4. All unmarked pins are case ground.
General Notes:
1. The DMF-8A series of Double Balanced Mixers covers the frequency range of 0.5 to 2000 MHz using an eight diode ring modulator to produce
a high level mixer with high third order intercept points.
2. Merrimac offers a broad selection of Double Balanced Mixers ideal for a variety of signal processing functions with frequencies ranging from
20 kHz to 20 GHz and for applications from the routine to the very special.
3. Merrimac mixers comply with MIL-M-28837 and may be supplied screened for compliance with additional specifications for military and space
applications requiring the highest reliability.
29Apr96
For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973 575-0531