Outline Drawing
Maximum Ratings
Pin Connections
Features
RF IN
1**
RF OUT
3**
GROUND
2,4
** RF IN & RF OUT can be interchanged
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
Applications
Outline Dimensions ( )
inch
mm
A
B
C
D
E
F
G
H
.126
.063
.039
.020
.032
.009
.169
.087
3.20
1.60
0.99
0.51
0.81
0.23
4.29
2.21
J
K
L
M
N
P
wt.
.024
.122
.024
.087
.012
.071 grams
0.61
3.10
0.61
2.21
0.30
1.80
.020
excellent power handling, 8.5W
small size
7 sections
temperature stable
patent pending
LFCN-320
DC-320
460
560
640-2500
5300
20
1.2
7
MODEL
NO.
PASSBAND
(MHz)
fco, MHz
Nom.
(loss 3 dB)
Typ.
STOP BAND (MHz)
(loss, dB)
(loss < 1 dB)
Max.
VSWR (:1)
Stopband
Typ.
Passband
Typ.
NO. OF
SECTIONS
f 20
Min.
fr 20
Typ.
40
Typ.
Typical Performance Data at 25C
Frequency
(MHz)
Insertion Loss
(dB)
VSWR
(:1)
RF IN
RF OUT
1.00
0.09
1.02
100.00
0.36
1.04
320.00
0.79
1.17
350.00
.94
1.27
460.00
2.72
2.20
550.00
24.34
12.26
640.00
44.80
19.98
1000.00
49.75
54.29
1500.00
66.15
72.39
2500.00
41.71
59.91
3500.00
30.04
51.10
4000.00
26.30
33.42
4500.00
23.26
20.45
5000.00
21.80
26.33
5500.00
20.10
19.32
Operating Temperature
-55C to 100C
Storage Temperature -55C to 100C
RF Power Input*
8.5W max. at 25C
DC Current Input to Output
0.5A max. at 25C
harmonic rejection
VHF/UHF transmitters/receivers
RF suppression for DC lines on PCB
anti-aliasing for A/D converter
*Passband rating, derate linearly to 3.5W at 100C ambient.
LFCN-320
INSERTION LOSS
0
10
20
30
40
50
60
70
80
0
1000
2000
3000
4000
5000
6000
FREQUENCY (MHz)
INSERTION LOSS (dB)
LFCN-320
VSWR
1
10
100
1000
0
1000
2000
3000
4000
5000
6000
FREQUENCY (MHz)
VSWR
K1-LFCN
35
5 of each: LFCN-225, -320, -400, -490, -530, -575, -630
99.95
designers kit available
Kit
No.
No. of
Units in Kit
Description
Price $
per Kit
fR 20 dB
20dB
3dB
40dB
ATTENUATION (dB)
1dB
FREQUENCY
f 20
f co
schematic
schematic
schematic
schematic
schematic
typical frequency response
typical frequency response
typical frequency response
typical frequency response
typical frequency response
1. For Applications requiring DC voltage to be applied to the Input or output, use LFCN-320D (DC Resistance to
ground is 100 Mohms min.)
Model
Price
Qty.
LFCN-320
$2.99
(10-49)
LFCN-320D
$3.49
(10-49)
CASE STYLE: FV1206
Low Pass Filter Electrical Specifications
1
(T
AMB
=25C)
INTERNET http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers
NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 EUROPE 44-1252-832600 Fax 44-1252-837010
Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
DC to 320 MHz
Low Pass Filter
Ceramic
LFCN-320
REV. C
M96263
LFCN-320
EDR-6588/2
RVN/AD/CP
050113
NEW!
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