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| Directional Coupler 75 2 to 250 MHz Features -40C to 85C -55C to 100C Surface Mount JDC-20-3-75+ JDC-20-3-75 Maximum Ratings Operating Temperature Storage Temperature * low mainline loss, 0.3 dB typ. * high directivity, 30 dB typ. * excellent solderability CASE STYLE: BH292 PRICE: $ 13.60 ea. QTY (25-49) Pin Connections INPUT OUTPUT COUPLED GROUND ISOLATE (DO NOT USE) 1 6 3 2,5 4 Applications * communications * level detecting * signal sampling * reflective power measurements + 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. Directional Coupler Electrical Specifications FREQ. (MHz) COUPLING (dB) L fL-fU 2-250 Nom. 19.20.5 Flatness 0.5 Typ. 0.4 Max. 0.8 Typ. 0.3 Outline Drawing MAINLINE LOSS1 (dB) M Max. 0.7 Typ. 0.4 U Max. 0.7 Typ. 24 L Min. 16 DIRECTIVITY (dB) M Typ. 30 Min. 20 Typ. 20 U Min. 15 VSWR POWER (:1) INPUT, W L Typ. 1.1 MU Max. Max. 0.5 1.0 PCB Land Pattern L = 2-20 MHz M = 20-125 MHz U = 125-250 MHz 1. Mainline loss includes theoretical power loss at coupled port. Typical Performance Data Frequency (MHz) Suggested Layout, Tolerance to be within .002 Mainline Loss (dB) In-Out 0.44 0.30 0.28 0.28 0.30 0.32 0.35 0.37 0.40 0.46 JDC-20-3-75 MAINLINE LOSS Coupling (dB) In-Cpl 19.22 19.23 19.24 19.24 19.26 19.28 19.32 19.35 19.38 19.45 Directivity (dB) In 23.55 28.64 29.97 30.50 31.34 31.42 30.66 29.92 28.50 25.22 Return Loss (dB) Out 24.40 31.07 33.28 34.28 33.32 30.68 28.22 26.97 25.21 21.84 Cpl 23.02 28.66 30.26 30.94 32.19 33.55 35.94 37.80 41.60 37.78 1.00 4.00 7.00 10.00 50.00 90.00 130.00 150.00 180.00 250.00 23.26 29.11 30.46 31.30 30.27 27.59 25.09 23.75 22.06 18.52 Outline Dimensions ( inch ) mm A .280 7.11 H .047 1.19 B .310 7.87 J .065 1.65 C --K .065 1.65 D .100 2.54 L .300 7.62 E .225 5.72 F .055 1.40 G .100 2.54 wt grams 0.45 MAINLINE LOSS (dB) JDC-20-3-75 COUPLING & DIRECTIVITY 60 COUPLING & DIRECTIVITY (dB) 50 40 30 20 10 0 0 50 100 150 FREQUENCY (MHz) 200 250 at RF level of -10 dBm 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0 at RF level of -10 dBm COUPLING DIRECTIVITY Demo Board MCL P/N: TB-33 Suggested PCB Layout (PL-044) 50 100 150 FREQUENCY (MHz) 200 250 JDC-20-3-75 RETURN LOSS 60 RETURN LOSS (dB) 50 40 30 20 10 0 0 50 100 150 FREQUENCY (MHz) 200 250 at RF level of -10 dBm Electrical Schematic CPL IN OUT Mini-Circuits TM (R) minicircuits.com 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 The Design Engineers Search Engine Provides ACTUAL Data Instantly From MINI-CIRCUITS At: www.minicircuits.com IF/RF MICROWAVE COMPONENTS REV. C M119986 ED-5581 JDC-20-3-75 WZ/TD/CP/AM 081111 |
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