Surface Mount LRDC-20-2+ LRDC-20-2 Directional Coupler 50Ω 300 to 1100 MHz Maximum Ratings Features Operating Temperature -40°C to 85 °C Storage Temperature -55°C to 100°C • low mainline loss, 0.25 dB typ. • high directivity, 17 dB typ. CASE STYLE: QQQ130 PRICE: $15.95 ea. QTY (1-9) Applications Pin Connections INPUT 6 OUTPUT 1 COUPLED 4 GROUND + RoHS compliant in accordance with EU Directive (2002/95/EC) • VHF/UHF • cellular • communications • signal sampling The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications. 2,5 ISOLATE (DO NOT USE) 3 Directional Coupler Electrical Specifications Outline Drawing FREQ. (MHz) fL-fU COUPLING (dB) Nom. 300-1100 20.5±1.0 MAINLINE LOSS1 (dB) DIRECTIVITY (dB) VSWR POWER (:1) INPUT, W Flatness Typ. Max. Typ. Min. Typ. L Max. MU Max. ±1.3 0.25 0.6 17 10 1.2 2.0 2.0 1. Mainline loss includes theoretical power loss at coupled port. PCB Land Pattern Typical Performance Data Frequency (MHz) Outline Dimensions ( inch mm ) A .400 10.16 B .31 7.87 C .200 5.08 D .10 2.54 E .010 0.25 H .420 10.67 J .120 3.05 K .060 1.52 L .100 2.54 M .020 0.51 F .100 2.54 G .050 1.27 wt grams 0.55 Directivity (dB) 0.30 0.26 0.26 0.28 0.30 0.32 0.34 0.35 0.37 0.39 22.27 22.11 21.96 21.80 21.67 21.51 21.43 21.33 21.21 21.10 18.46 17.25 16.06 15.20 14.83 14.54 14.42 14.34 14.26 14.24 300.00 438.46 576.92 715.38 807.69 900.00 950.00 1000.00 1050.00 1100.00 MAINLINE LOSS (dB) 1.0 Demo Board MCL P/N: TB-31 Suggested PCB Layout (PL-087) Coupling (dB) In-Cpl at RF level of -10 dBm LRDC-20-2 MAINLINE LOSS 40 0.8 0.6 0.4 0.2 0.0 300 460 620 780 940 1100 RETURN LOSS (dB) IN OUT 15.46 18.43 20.53 22.18 23.08 23.66 24.00 24.09 24.04 24.01 16.06 19.61 24.62 31.13 31.10 27.46 33.75 25.94 32.75 25.15 DIRECTIVITY COUPLING 30 20 10 0 300 460 620 780 940 1100 FREQUENCY (MHz) Electrical Schematic LRDC-20-2 RETURN LOSS at RF level of -10 dBm Cpl 15.52 18.41 20.51 22.14 22.93 23.56 23.84 23.91 23.80 23.78 at RF level of -10 dBm FREQUENCY (MHz) 50 In Return Loss (dB) Out LRDC-20-2 COUPLING & DIRECTIVITY COUPLING & DIRECTIVITY (dB) Suggested Layout, Tolerance to be within ±.002 Mainline Loss (dB) In-Out CPL 40 30 20 10 0 300 460 620 780 940 1100 FREQUENCY (MHz) Mini-Circuits ® 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 TM The Design Engineers Search Engine Provides ACTUAL Data Instantly From MINI-CIRCUITS At: www.minicircuits.com IF/RF MICROWAVE COMPONENTS REV. C M119986 LRDC-20-2 WZ/TD/CP/AM 081111