FD25 / FD25C / FD25E / SFD25
Frequency Doubler
Rev. V5
Features
Input 5 - 2400 MHz
Output 10 - 4800 MHz
Input Drive Level = 10 dBm (nominal)
Hermetically-Sealed Package
Description
TO-8
Flatpack
The FD25 is a passive bridge diode frequency
doubler, designed for use in military, commercial and
test equipment applications. The design utilizes
Schottky bridge quad diodes and broadband soft
dielectric and/or ferrite baluns to attain excellent
performance. The use of high temperature solder
assembly processes used internally makes it ideal
for use in manual and semi-automated assembly.
Environmental screening available to MIL-STD-883,
MIL-STD-202, or MIL-DTL-28837, consult factory.
Surface Mount
SMA Connectorized
Electrical Specifications: Z0 = 50 Ω, PIN = 10 dBm
Typical
Guaranteed
Test Conditions
Parameter
Units
Input Frequency (MHz)
+25ºC
+25ºC
-54ºC - +85ºC1
5 - 30
SSB Conversion Loss (max.)
30 - 2400
12.0
11.5
13.0
13.0
15.0
13.5
dB
5 - 1000
1000 - 2000
2000 - 2400
35
25
20
25
20
16
23
18
14
Fundamental Suppression (min.)
dBc
5 - 500
500 - 1000
1000 - 2400
50
40
35
40
30
25
38
28
23
Third Harmonic Suppression
Input VSWR
dBc
5 - 2400
ratio
1.5:1
—
—
1. The FD25C specification limits apply at 0ºC to +50ºC.
Absolute Maximum Ratings
Ordering Information
Part Number
FD25
Package
TO-8
Parameter
Absolute Maximum
23 dBm @ +25ºC
Peak Input Power
20 dBm @ +100ºC
50 mA DC
FD25C
SMA Connectorized
Flatpack
Peak Input Current
Operating Temperature
Storage Temperature
FD25E
-54ºC to +100ºC
-65ºC to +100ºC
SFD25
Surface Mount
1
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DC-0007715