Mini-Circuits - Specification for Directional Coupler - ZMDC-20-1 Directional Coupler ZMDC-20-1 Frequency MHz Coupling dB Mainline Loss dB fL - fU Nom. Flatness 25-400 21.00.75 0.5 Directivity dB VSWR Power (:1) INPUT, W L M U L M U Typ. Max. Typ. Max. Typ. Max. Typ. Min. Typ. Min. Typ. Min. Typ. 0.20 0.25 0.30 0.35 0.35 0.50 1.25 25 20 35 25 25 20 L MU Max. Max 3.0 5.0 L=low range(fL to 10fL) M=mid range(10fL to fU/2) U=upper range(fU/2 to fU) Notes: Pin Connections Port Input Output dd 3 2 Not Used Case GND Termination - - * Mainline Loss includes theoretical power loss at coupled port. * L = 25-50 MHz, M = 50-300 MHz, U = 300-400 MHz * General Quality Control Procedures and Environmental Specifications are given in Coupled Coupled (forward) (reverse) 1 GND - Mini-Circuits Guarantees Quality. Hi-Rel, MIL description are given in Hi-Rel and MIL - * Prices and Specifications subjects to change without notice. FREQ I. Loss (dB) Coupling (dB) Directivity (dB) (MHz) In-Out In-CPL Case Style - M21 (inch,mm ) weight: 40 grams. A B C D 1.50 1.13 1.00 .50 38.100 28.702 25.400 12.700 K .10 2.540 L M N E F G H J .155 2.345 .138 .987 2.50 3.937 59.563 3.505 25.070 63.500 P Q R .31 .75 1.19 .66 7.874 19.050 30.226 16.764 S Return Loss (dB) In Out CPL 25.00 0.14 20.90 39.03 38.82 46.83 46.62 50.00 0.18 20.91 38.76 38.41 43.91 43.34 100.00 0.22 20.98 36.87 37.98 38.48 37.78 118.75 0.23 21.05 35.93 37.56 36.95 36.63 200.00 0.24 21.03 31.74 35.84 32.57 32.64 212.51 0.27 21.04 31.42 35.51 32.18 32.20 254.17 0.27 21.06 30.87 34.98 30.91 31.28 316.68 0.27 21.07 29.28 33.88 29.06 30.42 389.60 0.31 21.07 28.01 32.78 27.58 30.10 400.00 0.32 21.07 27.86 32.68 27.39 30.03 T .150 3.810 Tolerance: .x .1 .xx .03 .xxx .015 inch. Material and Finish: Case material: aluminum alloy. Finish: blue anodized. Mounting bracket finish: iridite or clear anodize. Case material: aluminum alloy. Finish: blue paint over iridite. Mounting: Mounting bracket available on request. For bracket mounted on connector end add suffix B to part number and $5.00 to unit cost. For bracket mounted on the rear, add suffix BR to part number and add $1.50 to unit cost. Marking: For port markings 1, 2, and 3 see specification data sheet. Connectors: Connectors: Female SMA only. Male SMA available on request, consult factory. http://www.minicircuits.com/cgi-bin/spec?cat=coupler&model=ZMDC-20-1&pix=m21.gif&bv=4 (1 of 2) [7/19/2004 8:08:19 PM] Mini-Circuits - Specification for Directional Coupler - ZMDC-20-1 Back http://www.minicircuits.com/cgi-bin/spec?cat=coupler&model=ZMDC-20-1&pix=m21.gif&bv=4 (2 of 2) [7/19/2004 8:08:19 PM] i2 Technologies US, Inc. 15445 Innovation Drive San Diego, CA 92128 i2 Technologies US, Inc. HTML Pages converted to PDF Document This document contain component information from the manufacturer's website which are not available in a revision controlled document from the manufacturer. To facilitate the addition of these parts into the Electronics Database, we are converting the HTML pages related to that part, from the manufacturer's website into Adobe PDF format. The contents of this document is based on the information provided on the manufacturer's website, therefore the information may have been changed by the manufacturer since this was created. Powering the Bottom Line (R)