Surface Mount
Directional Coupler
75Ωꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ20ꢀtoꢀ1000ꢀMHzꢀ
ADC-18-4-75R+
Maximum Ratings
Features
CASEꢀSTYLE:ꢀCD542
PRICE:ꢀ$7.95ꢀea.ꢀQTYꢀ(10-49)
OperatingꢀTemperatureꢀꢀ
-40°Cꢀtoꢀ85°C
-55°Cꢀtoꢀ100°C
•ꢀwideband,ꢀꢀ20-1000ꢀMHz
•ꢀgoodꢀdirectivity,ꢀ25ꢀdBꢀtyp.
•ꢀexcellentꢀVSWR,ꢀ1.15:1ꢀtyp.
•ꢀinternalꢀload,ꢀnoꢀexternalꢀcomponentsꢀrequired
•ꢀaqueousꢀwashable
StorageꢀTemperatureꢀꢀ
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
Pin Connections
INPUTꢀ
1
6
•ꢀprotectedꢀbyꢀUSꢀPatentꢀ6,133,525ꢀ&ꢀ6,140,887
OUTPUTꢀ
Applications
•ꢀCATVꢀpowerꢀtap
COUPLEDꢀ
GROUNDꢀ
NOTꢀUSEDꢀ
3
2,5
4
Directional Coupler Electrical Specifications
FREQ.
(MHz)
COUPLING
(dB)
MAINLINE LOSS1
(dB)
DIRECTIVITY
(dB)
VSWR POWER
(:1) INPUT, W
Outline Drawing
L
M
U
L
M
U
fL-fU
Nom. Flatness
Typ. Max.
0.6 1.0
Typ. Max.
0.5 0.9
Typ. Max.
0.7 1.2
Typ. Min.
30 19
Typ. Min.
25 18
Typ. Min.
20 11
Typ.
1.15
Max.
1.0
20-1000 17.7±0.5
±0.5
L=ꢀ20-200ꢀMHzꢀꢀꢀꢀꢀꢀꢀM=ꢀ200-500ꢀMHzꢀꢀꢀꢀꢀꢀꢀꢀU=ꢀ500-1000ꢀMHz
1.ꢀMainlineꢀlossꢀincludesꢀtheoreticalꢀpowerꢀlossꢀatꢀcoupledꢀport.
Typical Performance Data
Mainline Loss
(dB)
Coupling
(dB)
In-Cpl
Directivity
(dB)
Return Loss
(dB)
Frequency
(MHz)
PCB Land Pattern
In-Out
In
Out
Cpl
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
20.00ꢀ
50.00ꢀ
100.00ꢀ
240.00ꢀ
400.00ꢀ
0.64ꢀ
0.58ꢀ
0.55ꢀ
0.56ꢀ
0.60ꢀ
17.79ꢀ
17.73ꢀ
17.70ꢀ
17.71ꢀ
17.67ꢀ
32.89ꢀ
41.84ꢀ
43.88ꢀ
30.92ꢀ
24.83ꢀ
20.76ꢀ
24.04ꢀ
25.58ꢀ
27.26ꢀ
27.68ꢀ
22.00ꢀ
26.77ꢀ
29.90ꢀ
35.24ꢀ
34.53ꢀ
20.42
23.55
24.90
27.17
28.00
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
540.00ꢀ
680.00ꢀ
800.00ꢀ
900.00ꢀ
1000.00ꢀ
0.65ꢀ
0.71ꢀ
0.76ꢀ
0.80ꢀ
0.86ꢀ
17.63ꢀ
17.55ꢀ
17.47ꢀ
17.40ꢀ
17.33ꢀ
21.34ꢀ
18.57ꢀ
16.59ꢀ
15.17ꢀ
13.84ꢀ
28.01ꢀ
29.46ꢀ
31.69ꢀ
35.90ꢀ
42.87ꢀ
31.80ꢀ
29.91ꢀ
28.56ꢀ
27.62ꢀ
27.02ꢀ
27.82
25.76
23.12
21.50
20.11
Suggested Layout,
Tolerance to be within .002
inch
Outline Dimensions (
)
mm
ADC-18-4-75R+
MAINLINE LOSS
ADC-18-4-75R+
COUPLING & DIRECTIVITY
A
.272
6.91
B
.310
7.87
C
.220
5.59
D
.100
2.54
E
.112
2.84
F
.055
1.40
G
.100
2.54
at RF level of -4.3 dBm
at RF level of -4.3 dBm
45
37
29
21
13
0.9
0.8
0.7
0.6
0.5
COUPLING
DIRECTIVITY
H
.030
0.76
J
.026
0.66
K
.065
1.65
L
.300
7.62
wt
grams
0.20
Demo Board MCL P/N: TB-356
Suggested PCB Layout (PL-213)
0
200
400
600
800
1000
0
200
400
600
800
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
ADC-18-4-75R+
RETURN LOSS
Electrical Schematic
at RF level of -4.3 dBm
45
40
35
30
25
20
IN
OUT
CPL
0
200
400
600
800
1000
FREQUENCY (MHz)
®
minicircuits.com
Mini-Circuits
REV.ꢀA
M119986
ED-12361/1
ADC-18-4-75R+
DY/LC/CP/AM
081111
ISO 9001 ISO 14001 AS 9100 CERTIFIED
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 For detailed performance specs & shopping online see Mini-Circuits web site
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IF/RF MICROWAVE COMPONENTS