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DTF-2A-1250 Datasheet, PDF (1/1 Pages) Merrimac Industries, Inc. – DOUBLE BALANCED MIXER
DTF-A Series
DOUBLEBALANCED M IXER
1to3500M Hz/+10to+15dBm LO /Hi-RelHermeticPackage
PRINCIPAL SPECIFICATIONS
RF/LO
LO Operating Conversion Port Isolation, Min. 1 dB Input 1 dB
Model Frequency, Drive, Range, Loss, dB, L-R L-X R-X Compr. Intercept Desens.
Number MHz
Nom. MHz Max. Typ. dB dB dB Point Point Level
DTF-2A-1250 1 - 3500 +10 dBm 10 - 200 7.5 6.5 30 30 30
200 - 2500 8.5 7.0 25 25 23
1 - 3500 9.5 8.0 25 25 20
+7
dBm
(typ.)
+14
dBm
(typ.)
DTF-4A-1250 1 - 3500 +15 dBm 10 - 200 7.5 6.5 35 30 30
+13
+20
200 - 2500 8.5 7.0 30 25 25
dBm dBm
1 - 3500 9.5 8.0 28 25 20
(typ.) (typ.)
All specifications are as measured in a 50Ω system, at nominal LO power in a down converter application
+5
dBm
(typ.)
+11
dBm
(typ.)
Package Outline
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 SPECIFICATIONS
IF Frequency Range: 1 - 1000 MHz
Impedance:
50 Ω nom.
Third Order Intermodulation
Ratio Degradation:
3 dB typ. for IF
VSWR of 3.0:1
Useful LO Drive Range: ± 3 dB of nominal
SSB Noise Figure:
Within ±1 dB of
Conversion Loss
Weight, nominal:
0.15 oz (4.2 g)
Operating Temperature: – 55° to +85°C
General Notes:
1. The DTF-A series Termination Insensitive Mixers cover the frequency range of 1 to 3500 MHz using transmission line
hybrid junction techniques to isolate the diode rings from termination mismatch-induced reflections. This means the
intermodulation ratio is independent of the IF port load impedance, so this unit is ideal for applications where a high
performance mixer must drive a reactive load (e.g., filter) at the IF port. The DTF-A series and related models are available
in PC, SMD and connectorized packages.
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 routine to very special.
3. Merrimac mixers comply with MIL-M-28837 and may be supplied screened for compliance with additional specifications
for military and space specifications requiring the highest reliability.
29Apr96
ForfurtherinformationcontactM ERRIM AC /41 FairfieldPl.,W estCaldw ell,NJ,07006 /973-575-1300 /FAX 973-575-0531