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LRDC-20-2J Datasheet, PDF (1/1 Pages) Mini-Circuits – Directional Coupler 50Ω 300 to 1100 MHz
Surface Mount
Directional Coupler
50Ω
300 to 1100 MHz
LRDC-20-2J+
LRDC-20-2J
Maximum Ratings
Operating Temperature
Storage Temperature
-40°C to 85 °C
-55°C to 100°C
Pin Connections
INPUT
6
OUTPUT
1
COUPLED
4
GROUND
2,5
ISOLATE (DO NOT USE)
3
Outline Drawing
PCB Land Pattern
Features
• low mainline loss, 0.25 dB typ.
• high directivity, 17 dB typ.
• aqueous washable
• J-leads for strain relief and excellent solderability
Applications
• VHF/UHF
• cellular
• communications
• signal sampling
CASE STYLE: QQQ569
PRICE: $15.95 ea. QTY (1-9)
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications.
FREQ.
(MHz)
Directional Coupler Electrical Specifications
COUPLING
(dB)
MAINLINE LOSS1
(dB)
DIRECTIVITY
(dB)
fL-fU
Nom. Flatness
Typ. Max.
300-1100 20.5±1.0 ±1.3
0.25 0.6
1. Mainline loss includes theoretical power loss at coupled port.
Typ. Min.
17 10
VSWR POWER
(:1) INPUT, W
L MU
Typ. Max. Max.
1.2 2.0 2.0
Suggested Layout,
Tolerance to be within ±.002
Outline Dimensions
(
inch
mm
)
A
B
C
D
.390 .31 .225 .060
9.91 7.87 5.72 1.52
E
F
G
-- .100 .045
-- 2.54 1.14
H
J
K
L
M
.420 .120 .060 .100
--
10.67 3.05 1.52 2.54
--
wt
grams
0.50
Demo Board MCL P/N: TB-31
Suggested PCB Layout (PL-087)
Frequency
(MHz)
300.00
438.46
576.92
715.38
807.69
900.00
950.00
1000.00
1050.00
1100.00
Typical Performance Data
Mainline Loss
(dB)
In-Out
Coupling
(dB)
In-Cpl
Directivity
(dB)
0.30
22.27
18.46
0.26
22.11
17.25
0.26
21.96
16.06
0.28
21.80
15.20
0.30
21.67
14.83
0.32
21.51
14.54
0.34
21.43
14.42
0.35
21.33
14.34
0.37
21.21
14.26
0.39
21.10
14.24
In
15.52
18.41
20.51
22.14
22.93
23.56
23.84
23.91
23.80
23.78
Return Loss
(dB)
Out
15.46
18.43
20.53
22.18
23.08
23.66
24.00
24.09
24.04
24.01
Cpl
16.06
19.61
24.62
31.13
31.10
27.46
33.75
25.94
32.75
25.15
at RF level of -10 dBm
1.0
LRDC-20-2J
MAINLINE LOSS
0.8
0.6
0.4
0.2
0.0
300
460
620
780
FREQUENCY (MHz)
at RF level of -10 dBm
50
IN
40
LRDC-20-2J
RETURN LOSS
OUT
940
CPL
1100
LRDC-20-2J
COUPLING & DIRECTIVITY
at RF level of -10 dBm
40
DIRECTIVITY
COUPLING
30
20
10
0
300 460 620 780 940
FREQUENCY (MHz)
Electrical Schematic
1100
30
20
10
0
300
460
620
780
940
FREQUENCY (MHz)
1100
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IF/RF MICROWAVE COMPONENTS
REV. A
M119986
LRDC-20-2J
WZ/TD/CP/AM
081120