MONOLITHIC CRYSTAL
FILTERS
Fox filters offer excellent features such as sharp cut off characteristics,
low loss and high stability over a wide temperature range which are
superior to LC Filters and Ceramic Filters.
The basic building block for all custom built Fox filters is the two-
pole monolithic filter available in standard package as shown. Two-
pole monolithic filters are cascaded to produce four, six and eight
pole filter responses with the addition of coupling capacitors
between two-pole sections. Standard Fox filters are available with
center frequencies from 10.7 MHz to 90 MHz, and from two to
eight poles.
For custom made filters, please specify the following:
• Ripple
• Terminating Impedance
• Operating Temp. Range
• Holder Size
• Insertion Loss
• Nominal Frequency • Attenuation
• Pass Bandwidth • Spurious Response
Note: 45F Series 45.000 MHz fundamental is a special filter designed for mobile
radio and cellular phone applications.
• MULTI-POLE PACKAGE DIMENSIONS
CASE TYPE
W
L
H
A
B
C
0.472 (12.0)
0.590 (15.0)
0.728 (18.5)
0.433 (11.0)
0.591 (15.0)
0.591 (15.0)
0.453 (11.5)
0.354
0.531 (13.5)
0.291 (7.4)
(9.0)
0.197
0.197
0.157
(5.0)
(5.0)
(4.0)
D
0.472 (12.0)
CN
0.335
(8.5)
FOXElectronics 5570 Enterprise Parkway Fort Myers, Florida 33905 USA +001(239)693-0099 FAX +001(239)693-1554 http://www.foxonline.com
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© 2002 FOX ELECTRONICS
FOX [ FOX ELECTRONICS ]
