Coaxial
Low Pass Filter
DC to 780 MHz (40 dB Isolation up to 20 GHz)
Maximum Ratings
Operating Temperature
Storage Temperature
RF Power Input*
-55°C to 100°C
-55°C to 100°C
10W max. at 25°C
EW!
N
VLFX-780
Features
•
•
•
•
•
•
very good isolation, 40 dB up to 20 GHz
21 sections
temperature stable LTCC internal structure
patent pending
re-entry frequency > 20 GHz
rugged stainless steel unibody
CASE STYLE: FF1118
PRICE: $ 39.95 ea. QTY (1-9)
*Passband
rating, derate linearly to 3.5W at 100°C ambient.
Applications
•
•
•
•
Outline Drawing
harmonic rejection
transmitters/receivers
lab use
test instrumentation
Low Pass Filter Electrical Specifications @ 25°C
MODEL
NO.
PASSBAND
(MHz)
(Loss < 1.2dB)
Max.
VLFX-780
DC-780
fco, MHz
Nom
(Loss 3 dB)
Typ
950
STOPBAND (MHz)
(Loss, dB)
f20
Min.
1450
f40
Typ.
1610-20000
VSWR (:1)
Stopband
Typ.
10
Passband
Typ.
1.25
NO. OF
SECTIONS
21
Typical Performance Data @ 25°C
Outline Dimensions (
inch
)
mm
B
.39
9.91
D
2.67
67.82
E
.312
7.92
wt.
grams
17.0
Frequency
(MHz)
50
200
500
780
840
900
960
1050
1350
1620
Insertion Loss
(dB)
0.20
0.42
0.67
1.00
1.24
1.80
2.97
5.85
20.52
41.62
44.97
47.85
78.54
69.60
59.97
74.94
55.61
45.26
66.73
62.04
VSWR
(:1)
1.07
1.23
1.20
1.15
1.38
1.89
2.94
6.43
41.39
73.11
78.34
88.41
98.33
89.14
45.09
28.77
18.76
1.23
22.68
8.82
Functional Schematic
RF IN
RF OUT
1750
2000
2500
5000
7500
10000
12500
15000
17500
20000
Typical Frequency Response
ATTENUATION (dB)
40 dB
20 dB
90
VLFX-780
INSERTION LOSS
VLFX-780
VSWR
1000
3 dB
80
INSERTION LOSS(dB)
1 dB
fco f20
f40
FREQUENCY
>20 GHz
70
60
50
40
30
20
10
0
0
4000
8000
12000
16000
20000
FREQUENCY (MHz)
100
VSWR
10
1
0
4000
8000
12000
16000
20000
REV. OR
M96318
VLFX-780
EDU-0399
ED-11930A/10
URJ/AD/CP
050119
FREQUENCY (MHz)
Distribution Centers
NORTH AMERICA 800-654-7949 • 417-335-5935 • Fax 417-335-5945 • EUROPE 44-1252-832600 • Fax 44-1252-837010
Mini-Circuits
®
INTERNET
http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Mini-Circuits
ISO 9001 & ISO 14001
Certified
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