Surface Mount
LRDC-10-2W-75J+
LRDC-10-2W-75J
Directional Coupler
75Ω
30 to 1200 MHz
Maximum Ratings
Operating Temperature
Storage Temperature
Features
• low mainline loss, 1.1 dB typ.
• high directivity, 22 dB typ.
• aqueous washable
-40°C to 85°C
-55°C to 100°C
CASE STYLE: QQQ569
PRICE: $15.95 ea. QTY (1-9)
• J-leads for strain relief and excellent solderability
+ 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.
Pin Connections
INPUT
Applications
• VHF/UHF
• cellular
• communications
• cable tv
6
OUTPUT
1
4
COUPLED
GROUND
2,5
3
ISOLATE (DO NOT USE)
Directional Coupler Electrical Specifications
Outline Drawing
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS1
(dB)
DIRECTIVITY
VSWR POWER
(:1) INPUT, W
(dB)
L
M
U
L
M
U
L
MU
Max. Max.
1.0 1.0
fL-fU
Nom.
Flatness
±0.8
Typ. Max. Typ. Max. Typ. Max. Typ. Min. Typ. Min. Typ. Min.
Typ.
30-1200 10.0±0.5
1.0
1.5
1.1
1.6
1.3
2.0
21
17
22
17
18
15
1.3
L = low range [fL to 10 fL] M = mid range [10 fL to fU/2] U = upper range [fU/2 to fU]
1. Mainline loss includes theoretical power loss at coupled port.
PCB Land Pattern
Typical Performance Data
Frequency
(MHz)
Mainline Loss
(dB)
Coupling
Directivity
Return Loss
(dB)
(dB)
(dB)
In-Out
In-Cpl
In
Out
Cpl
23.68
31.16
61.06
158.23
315.21
520.77
674.01
879.57
1088.87
1201.00
1.21
1.18
1.10
1.04
1.10
1.20
1.32
1.39
1.50
1.65
10.10
10.06
10.05
10.06
10.15
10.22
10.29
10.25
10.27
10.28
26.05
27.31
30.20
30.12
25.69
23.25
23.99
30.70
22.42
17.05
21.46
23.65
31.44
28.87
20.41
16.78
15.97
17.10
21.86
27.27
17.01
17.77
19.11
19.46
17.63
15.56
14.88
15.37
17.37
18.70
17.25
17.99
19.37
19.51
17.24
15.15
14.50
14.92
17.06
19.19
Suggested Layout,
Tolerance to be within ±.002
Outline Dimensions ( inch
)
mm
A
.390
9.91
B
.31
7.87
C
.225
5.72
D
.060
1.52
E
--
--
F
.100
2.54
G
.045
1.14
H
.420
10.67
J
.120
3.05
K
.060
1.52
L
.100
2.54
M
--
--
wt
grams
0.50
LRDC-10-2W-75J
MAINLINE LOSS
LRDC-10-2W-75J
COUPLING & DIRECTIVITY
at RF level of -10 dBm
at RF level of -10 dBm
2.0
1.8
1.6
1.4
1.2
1.0
50
40
30
20
10
0
COUPLING
DIRECTIVITY
Demo Board MCL P/N: TB-34
Suggested PCB Layout (PL-043)
0
240
480
720
960
1200
0
240
480
720
960
1200
FREQUENCY (MHz)
FREQUENCY (MHz)
Electrical Schematic
LRDC-10-2W-75J
RETURN LOSS
at RF level of -10 dBm
50
IN
OUT
CPL
40
30
20
10
0
0
240
480
720
960
1200
FREQUENCY (MHz)
®
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M119986
LRDC-10-2W-75J
WZ/TD/CP/AM
081124
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IF/RF MICROWAVE COMPONENTS