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M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
changes to the product(s) or information contained herein without notice.
1
Frequency Doubler
Rev. V4
FD25 / FD25C / FD25E / SFD25
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions
is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
Commitment to produce in volume is not guaranteed.
Features
• Input 5 to 2400 MHz
• Output 10 to 4800 MHz
• Input Drive level +10 dBm (nominal)
• Hermetically-Sealed Package
Description
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.
Ordering Information
Part Number Package
FD25 TO-8
FD25C SMA Connectorized
FD25E Flatpack
SFD25 Surface Mount
Electrical Specifications: Z0 = 50Ω Pin = +10 dBm
Parameter Test Conditions Units Typical Guaranteed
+25ºC -54º to +85ºC*
SSB Conversion Loss
(max)
fin = 5 to 30 MHz
fin = 30 to 2400 MHz dB 12.0
11.5 13.0
13.0 15.0
13.5
Fundamental
Suppression (min)
fin = 5 to 1000 MHz
fin = 1000 to 2000 MHz
fin = 2000 to 2400 MHz dBc 35
25
20
25
20
16
23
18
14
Third Harmonic
Suppression
fin = 5 to 500 MHz
fin = 500 to 1000 MHz
fin = 1000 to 2400 MHz dBc 50
40
35
40
30
25
38
28
23
Input VSWR fin = 5 to 2400 MHz 1.5:1
Product Image
* The FD25C specification limits apply at 0ºC to +50ºC.