Directional Coupler
50Ω
100 to 1200 MHz
Features
-40°C to 85°C
-55°C to 100°C
Surface Mount
ADC-20-12+
ADC-20-12
Maximum Ratings
Operating Temperature
Storage Temperature
Pin Connections
INPUT
OUTPUT
COUPLED
GROUND
50
Ω
TERM EXTERNAL
ISOLATE (DO NOT USE)
1
6
3
2
4
5
• useable to 1500 MHz
• low mainline loss, 0.5 dB typ.
• high directivity, 26 dB typ.
• aqueous washable
• protected by U.S Patents 6,133,525 & 6,140,887
• cable tv
CASE STYLE: CD542
PRICE:$6.95 ea. QTY (10-49)
+ 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.
Applications
Directional Coupler Electrical Specifications
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS
1
(dB)
DIRECTIVITY
(dB)
VSWR POWER
(:1) INPUT, W
L
Max.
1.0
MU
Max.
1.0
Outline Drawing
f
L
-f
U
100-1200
Nom.
20±0.75
Flatness
±0.7
Typ.
0.5
Max.
1.1
Typ.
26
Min.
13
Typ.
1.17
1. Mainline loss includes theoretical power loss at coupled port.
Typical Performance Data
PCB Land Pattern
Frequency
(MHz)
100.00
250.00
350.00
500.00
600.00
Mainline Loss
(dB)
In-Out
0.34
0.37
0.39
0.46
0.50
0.53
0.56
0.61
0.69
0.76
Coupling
(dB)
In-Cpl
19.94
20.14
20.24
20.56
20.50
20.55
20.58
20.61
20.61
20.63
Directivity
(dB)
22.33
22.91
23.45
26.44
27.16
27.78
27.00
25.40
22.34
20.72
In
29.24
26.99
25.38
23.21
22.03
21.02
20.17
19.23
17.44
16.56
Return Loss
(dB)
Out
25.01
24.13
22.81
21.05
19.94
18.96
18.09
17.25
15.64
14.90
Cpl
30.72
28.60
26.88
24.55
23.24
22.06
21.12
20.16
18.19
17.35
Suggested Layout,
Tolerance to be within ±.002
700.00
800.00
900.00
1100.00
1200.00
Outline Dimensions (
inch
)
mm
A
.272
6.91
H
.030
0.76
B
.310
7.87
J
.026
0.66
C
.220
5.59
K
.065
1.65
D
.100
2.54
L
.300
7.62
E
.112
2.84
F
.055
1.40
G
.100
2.54
INSERTION LOSS (dB)
1.0
0.8
0.6
0.4
0.2
0.0
100
at RF level of -10 dBm
ADC-20-12
MAINLINE LOSS
40
COUPLING &
DIRECTIVITY (dB)
34
28
22
16
10
100
ADC-20-12
COUPLING & DIRECTIVITY
at RF level of -10 dBm
wt
grams
0.20
COUPLING
DIRECTIVITY
Demo Board MCL P/N: TB-05
Suggested PCB Layout (PL-095)
320
540
760
FREQUENCY (MHz)
980
1200
320
540
760
FREQUENCY (MHz)
980
1200
ADC-20-12
RETURN LOSS
40
RETURN LOSS (dB)
34
28
22
16
10
100
at RF level of -10 dBm
Electrical Schematic
CPL
IN
OUT
320
540
760
FREQUENCY (MHz)
980
1200
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TM
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IF/RF MICROWAVE COMPONENTS
REV. D
M119986
ED-7776/1
ADC-20-12
WZ/TD/CP/AM
081111
MINI [ MINI-CIRCUITS ]
