Directional Coupler
50Ω
500 to 1100 MHz
Features
-40°C to 85°C
-55°C to 100°C
Surface Mount
SCDC-11-2
Maximum Ratings
Operating Temperature
Storage Temperature
• low mainline loss, 1.1 dB typ.
• hgh directivity, 20 dB typ.
• excellent solderability
CASE STYLE: YY161
PRICE: $10.90 ea. QTY (25-49)
Pin Connections
INPUT
OUTPUT
COUPLED
GROUND
ISOLATE (DO NOT USE)
1
2
5
4,7,8
3,6
Applications
• communication
• cellular
Directional Coupler Electrical Specifications
Outline Drawing
FREQ.
(MHz)
COUPLING
(dB)
Nom.
500-1100 11.3±0.5
Flatness
±0.6
MAINLINE LOSS
1
(dB)
Typ.
1.1
Max.
1.8
DIRECTIVITY
(dB)
Typ.
17
Min.
10
VSWR POWER
(:1) INPUT, W
Typ.
1.4
Max.
2
1. Mainline loss includes theoretical power loss at coupled port.
PCB Land Pattern
Typical Performance Data
Frequency
(MHz)
Mainline Loss
(dB)
In-Out
1.05
1.01
1.01
1.02
1.10
1.04
1.06
1.02
1.11
1.10
SCDC-11-2
MAINLINE LOSS
2.0
MAINLINE LOSS (dB)
1.6
1.2
0.8
0.4
0.0
500
at RF level of -10 dBm
Coupling
(dB)
In-Cpl
11.09
11.02
10.96
10.92
10.96
10.83
10.78
10.78
10.78
10.66
Directivity
(dB)
In
27.31
28.98
27.86
25.86
24.17
22.57
21.50
20.76
20.30
20.10
Return Loss
(dB)
Out
28.87
31.53
28.16
24.69
22.15
19.92
18.29
17.06
16.11
15.49
Cpl
25.33
27.85
28.56
27.35
25.73
24.01
22.80
21.98
21.48
21.26
Suggested Layout,
Tolerance to be within
±.002
Outline Dimensions (
inch
)
mm
A
0.75
19.05
H
0.075
1.91
B
0.38
9.65
J
0.6
15.24
C
0.28
7.11
K
0.45
11.43
D
0.01
0.25
M
0.47
11.94
E
0.05
1.27
N
0.1
2.54
F
0.02
0.51
G
0.2
5.08
500.00
560.00
620.00
680.00
740.00
815.00
890.00
965.00
1040.00
1100.00
18.51
18.38
18.20
17.97
17.70
17.36
16.99
16.58
16.18
15.86
P
wt
0.15 grams
3.81
1.60
SCDC-11-2
COUPLING & DIRECTIVITY
30
COUPLING & DIRECTIVITY
(dB)
at RF level of -10 dBm
COUPLING
20
DIRECTIVITY
Demo Board MCL P/N: TB-35
Suggested PCB Layout (PL-096)
10
620
740
860
FREQUENCY (MHz)
980
1100
0
500
620
740
860
FREQUENCY (MHz)
980
1100
SCDC-11-2
RETURN LOSS
50
RETURN LOSS (dB)
40
30
20
10
0
500
at RF level of -10 dBm
Electrical Schematic
CPL
IN
OUT
620
Mini-Circuits
TM
740
860
FREQUENCY (MHz)
980
1100
®
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REV. B
M119986
SCDC-11-2
WZ/TD/CP/AM
081111
IF/RF MICROWAVE COMPONENTS
MINI [ MINI-CIRCUITS ]
