Mini-Circuits RDC-7-182-75X+ surface-mount directional coupler provides 7 dB coupling with excellent flat-
ness, low mainline loss, and good return loss for 75Ω applications from 5 to 1800 MHz, supporting a variety
of broadband applications including DOCSIS 3.1 systems and equipment. This model features core and
wire construction with wrap-around terminations for good solderability and easy visual inspection.
Key Features
Feature
Broadband, 5 to 1800 MHz
Advantages
Supports bandwidth requirements for DOCSIS 3.1 systems and equipment.
Provides excellent through-path signal transmission and maintains low heat dissipation,
avoiding the need for special heat sinking methods.
Usable in systems with a variety of signal power requirements.
Low mainline loss, 2.0 dB at 1218 MHz
Power handling, up to 1W
Excellent return loss, 18 dB typ.
Provides excellent matching for 50Ω systems.
Top Hat feature
Improves speed and accuracy of pick and place assembly.
Notes
A.
Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B.
Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C.
The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
www.minicircuits.com
P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
Mini-Circuits
®
Page 1 of 3
Surface Mount
75Ω
Features
top hat
®
Directional Coupler
7dB
5 to 1800 MHz
• wideband, 5-1800 MHz
• excellent return loss, 18 dB typ.
• low mainline loss, 2.0 dB typ. at 1218 MHz
• excellent coupling flatness,
±0.3
dB typ.
• aqueous washable
RDC-7-182-75X+
CASE STYLE: TT2315
+RoHS Compliant
Applications
• DOCSIS 3.1
• cable tv
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
Electrical Specifications at 25°C
Parameter
Frequency Range
Mainline Loss
1
Nominal Coupling
Coupling Flatness (±)
Directivity
Return Loss (Input)
Return Loss (Output)
Return Loss (Coupling)
1. Mainline loss includes theoretical power loss at coupled port.
Condition (MHz)
5 - 1218
1218 - 1800
5 - 1800
5 - 1800
5 - 684
684 - 1218
1218 - 1800
5 - 1800
5 - 1800
5 - 1800
Min.
5
—
—
—
—
16
10
6
—
—
—
Typ.
2.0
2.7
7.8 ± 0.5
0.3
21
18
10
18
20
14
Max.
1800
2.6
3.4
—
0.8
—
—
—
—
—
—
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
Maximum Ratings
Parameter
Operating Temperature
Storage Temperature
Ratings
-40°C to 85°C
-55°C to 100°C
Pin Connections
Function
INPUT
OUTPUT
COUPLED
GROUND
75Ω TERM EXTERNAL
ISOLATE (DO NOT USE)
Pin Number
1
6
3
2
4
5
Permanent damage may occur if any of these limits are exceeded.
Electrical Schematic
Notes
A.
Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B.
Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C.
The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
www.minicircuits.com
P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
Mini-Circuits
®
REV. A
M173129
RDC-7-182-75X+
WP/CP/AM
190312
Page 2 of 3
RDC-7-182-75X+
Outline Drawing
PCB Land Pattern
Demo Board MCL P/N: TB-917+
Suggested PCB Layout (PL-452)
Suggested Layout,
Tolerance to be within±.002
Outline Dimensions (
inch
)
mm
A
.250
6.35
G
.040
1.02
B
.280
7.11
H
.100
2.54
C
.140
3.56
J
.310
7.87
D
.100
2.54
K
.050
1.27
E
.050
1.27
F
.040
1.02
wt.
grams
0.35
Typical Performance Data
Frequency
(MHz)
5
20
50
100
200
400
800
900
1000
1218
1500
1600
1800
Mainline Loss
(dB)
In-Out
1.69
1.58
1.62
1.67
1.71
1.75
1.86
1.90
1.96
2.12
2.44
2.58
2.96
Coupling
(dB)
In-Cpl
7.59
7.50
7.54
7.59
7.64
7.64
7.51
7.46
7.41
7.31
7.26
7.28
7.38
Directivity
(dB)
21.46
24.57
24.30
23.79
23.34
22.65
22.30
22.42
22.36
20.00
15.46
14.70
13.84
In
17.42
18.98
18.93
18.89
19.10
19.58
21.30
21.35
21.51
21.09
19.38
18.40
15.94
Return Loss
(dB)
Out
23.10
28.37
29.57
29.80
28.20
24.30
21.25
21.29
21.46
21.05
18.56
18.03
16.96
Cpl
13.30
14.70
14.68
14.62
14.91
15.86
18.70
19.40
20.20
21.50
19.94
18.58
16.28
RDC-7-182-75X+
MAINLINE LOSS
COUPLING & DIRECTIVITY (dB)
3.5
MAINLINE LOSS (dB)
3.0
50
40
30
20
RDC-7-182-75X+
COUPLING & DIRECTIVITY
60
COUPLING
DIRECTIVITY
RDC-7-182-75X+
RETURN LOSS
IN
OUT
CPL
RETURN LOSS (dB)
50
40
30
2.5
2.0
1.5
1.0
20
10
0
0
200
400
600 800 1000 1200 1400 1600 1800
FREQUENCY (MHz)
10
0
0
200
400
600 800 1000 1200 1400 1600 1800
FREQUENCY (MHz)
0
200
400
600
800
1000 1200 1400 1600 1800
FREQUENCY (MHz)
Additional Notes
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are
Notes
entitled to the rights
quality
benefits contained therein.
expressly stated in this
of the Standard Terms
are intended to be excluded
and
do not form
thereunder, please visit Mini-Circuits’ website at
A.
Performance and
and
attributes and conditions not
For a full statement
specification document
and the exclusive rights
and
remedies
a part of this specification document.
B.
Electrical specifications and performance data
www.minicircuits.com/MCLStore/terms.jsp
contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C.
The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
www.minicircuits.com
P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
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