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Directional Coupler
50
5 to 1000 MHz
Features
-40C to 85C -55C to 100C
Surface Mount
ADC-20-4+ ADC-20-4
Maximum Ratings
Operating Temperature Storage Temperature
Pin Connections
INPUT OUTPUT COUPLED GROUND 50 TERM EXTERNAL ISOLATE (DO NOT USE) 1 6 3 2 4 5
* wideband, 5-1000 MHz * low mainline loss, 0.5 dB typ. * high directivity, 21 dB typ. * aqueous washable * protected by U.S Patents 6,133,525 & 6,140,887 * cable tv * communications
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 LOSS1 (dB)
L Typ. Max. 0.4 0.8 M Typ. Max. 0.5 1.0 U Typ. Max. 0.7 1.3 L Typ. Min. 20 18
Outline Drawing
DIRECTIVITY (dB)
M Typ. Min. 21 17 U Typ. Min. 21 15
VSWR POWER (:1) INPUT, W
L Max. 1.0 MU Max. 1.0
fL-fU 5-1000
Nom. 20.00.5
Flatness 0.8
Typ. 1.1
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
PCB Land Pattern
Frequency (MHz)
5.00 10.00 50.00 150.00 250.00
Mainline Loss (dB) In-Out
0.35 0.32 0.32 0.37 0.38 0.40 0.45 0.53 0.53 0.68
Coupling (dB) In-Cpl
19.49 19.55 19.62 19.68 19.80 19.89 20.05 20.28 20.31 20.49
Directivity (dB)
21.07 20.63 20.64 21.01 21.28 21.32 21.18 20.90 20.71 20.03
In
26.82 30.04 32.99 33.06 34.14 34.05 36.20 31.32 28.29 25.43
Return Loss (dB) Out
28.08 32.37 37.40 35.38 34.19 31.30 31.48 31.73 31.27 28.94
Cpl
23.37 26.49 30.48 30.96 31.95 32.90 34.55 34.59 31.88 28.09
Suggested Layout, Tolerance to be within .002
350.00 500.00 750.00 870.00 1000.00
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 wt grams 0.20
INSERTION LOSS (dB) ADC-20-4 MAINLINE LOSS 1.0 0.8 0.6 0.4 0.2 0.0 0 200 400 600 FREQUENCY (MHz) 800 1000
at RF level of -10 dBm
ADC-20-4 COUPLING & DIRECTIVITY 30 COUPLING & DIRECTIVITY (dB)
at RF level of -10 dBm
COUPLING 25
DIRECTIVITY
Demo Board MCL P/N: TB-05 Suggested PCB Layout (PL-095)
20
15 0 200 400 600 FREQUENCY (MHz) 800 1000
ADC-20-4 RETURN LOSS 43 RETURN LOSS (dB) 38 33 28 23 18 0 200 400 600 FREQUENCY (MHz) 800 1000
at RF level of -10 dBm
Electrical Schematic
CPL
IN
OUT
Mini-Circuits
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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 The Design Engineers Search Engine Provides ACTUAL Data Instantly From MINI-CIRCUITS At: www.minicircuits.com
IF/RF MICROWAVE COMPONENTS
REV. D M119986 ED-6676/2 ADC-20-4 WZ/TD/CP/AM 081111

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