Surface Mount
Directional Coupler
75Ω
ADC-25-4-75+
5 to 1000 MHz
Maximum Ratings
Operating Temperature
Storage Temperature
-40°C to 85°C
-55°C to 100°C
Pin Connections
INPUT
OUTPUT
COUPLED
GROUND
75Ω TERM EXTERNAL
NOT USED
1
6
3
2
4
5
Features
•
•
•
•
•
wideband, 5-1000 MHz
low insertion loss, 0.3 dB typ.
high coupling, 25 dB typ.
excellent VSWR, 1.2:1 typ.
protected by US patents 6,133,525 & 6,140,887
+ 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.
Applications
• CATV
Directional Coupler Electrical Specifications
FREQ.
(MHz)
Outline Drawing
CASE STYLE: CD636
PRICE:$6.95 ea. QTY (10-49)
COUPLING
(dB)
Nom.
5-1000
Flatness
25±1.0
±2.0
MAINLINE LOSS1
(dB)
L
M
Typ.
Max.
Typ.
0.1
0.5
0.1
DIRECTIVITY
(dB)
U
L
Max. Typ. Max.
0.4
0.3
0.7
VSWR POWER
(:1)
INPUT, W
M
U
Typ.
Min.
Typ.
Min.
Typ.
Min.
Typ.
Max.
27
13
25
14
20
12
1.2
0.5
L= 5-50 MHz
M= 50-500 MHz
U= 500-1000 MHz
1. Mainline loss includes theoretical power loss at coupled port.
Typical Performance Data
Frequency
(MHz)
PCB Land Pattern
5.00
10.00
50.00
100.00
260.00
500.00
600.00
700.00
850.00
1000.00
Suggested Layout,
Tolerance to be within ±.002
Outline Dimensions ( inch
mm )
C
.220
5.59
D
.100
2.54
H
.030
0.76
J
.026
0.66
K
.065
1.65
L
.300
7.62
E
.162
4.11
F
.055
1.40
G
.100
2.54
wt
grams
0.25
Demo Board MCL P/N: TB-08
Suggested PCB Layout (PL-042)
Coupling
(dB)
In-Cpl
26.38
26.42
26.44
26.39
26.01
25.18
24.96
24.98
25.33
25.41
Directivity
(dB)
at RF level of -4.3 dBm
0.3
0.2
0.1
0
200
400
600
800
1000
FREQUENCY (MHz)
COUPLING
25
20
15
0
200
RETURN LOSS (dB)
IN
400
600
FREQUENCY (MHz)
800
1000
electrical schematic
at RF level of -4.3 dBm
45
DIRECTIVITY
30
ADC-25-4-75+
RETURN LOSS
50
Cpl
22.43
28.52
38.85
37.28
25.64
21.21
20.18
19.63
19.36
18.66
at RF level of -4.3 dBm
35
0.4
0
Return Loss
(dB)
Out
22.47
28.63
37.83
38.86
30.67
27.38
26.45
26.89
30.04
29.04
ADC-25-4-75+
COUPLING & DIRECTIVITY
ADC-25-4-75+
MAINLINE LOSS
0.5
In
22.68
28.87
38.74
44.75
31.00
30.93
33.03
31.89
28.69
29.32
22.91
27.82
32.03
28.51
21.92
19.14
18.98
19.48
23.30
19.99
COUPLING & DIRECTIVITY
(dB)
B
.310
7.87
MAINLINE LOSS (dB)
A
.272
6.91
Mainline Loss
(dB)
In-Out
0.09
0.15
0.13
0.12
0.11
0.16
0.25
0.31
0.40
0.47
CPL
OUT
40
OUTPUT
INPUT
35
30
25
20
COUPLED
TERMINATE
15
0
Mini-Circuits
®
200
400
600
FREQUENCY (MHz)
800
1000
INTERNET http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers NORTH AMERICA 800-654-7949 • 417-335-5935 • Fax 417-335-5945 • EUROPE 44-1252-832600 • Fax 44-1252-837010
Mini-Circuits ISO 9001 & ISO 14001 Certified
REV. OR
M104346
ED-6928A/4
ADC-25-4-75
DY/LC/CP
060331