Coaxial Low Pass Filter VLFX-780 DC to 780 MHz (40 dB Isolation up to 20 GHz) Maximum Ratings Operating Temperature -55C to 100C Storage Temperature -55C to 100C RF Power Input* Features * very good isolation, 40 dB up to 20 GHz * 21 sections * excellent power handling, 10W * temperature stable LTCC internal structure * re-entry frequency > 20 GHz * rugged stainless steel unibody * protected by US patent 6,943,646 10W max. at 25C *Passband rating, derate linearly to 3.5W at 100C ambient. CASE STYLE: FF1118 Connectors SMA Model VLFX-780-S Price $39.95 ea. Qty. (1-9) Applications * * * * Outline Drawing harmonic rejection transmitters/receivers lab use test instrumentation Low Pass Filter Electrical Specifications @ 25C MODEL NO. PASSBAND (MHz) fco, MHz Nom STOPBAND (MHz) (Loss, dB) (Loss < 1.2dB) Max. (Loss 3 dB) Typ f20 Min. f40 Typ. Stopband Typ. Passband Typ. DC-780 950 1450 1600-20000 10 1.25 VLFX-780 VSWR (:1) NO. OF SECTIONS 21 Typical Performance Data @ 25C Outline Dimensions ( B .39 9.91 D 2.67 67.82 E .312 7.92 inch mm ) wt. grams 17.0 Frequency (MHz) Insertion Loss (dB) 50 200 500 780 840 0.20 0.42 0.67 1.00 1.24 1.07 1.23 1.20 1.15 1.38 900 950 1050 1450 1600 1.80 2.71 5.85 26.42 38.96 1.89 2.73 6.43 50.23 69.51 1750 2000 2500 5000 7500 44.97 47.85 78.54 69.60 59.97 78.34 88.41 98.33 89.14 45.09 10000 12500 15000 17500 20000 74.94 55.61 45.26 66.73 62.04 28.77 18.76 1.23 22.68 8.82 Functional Schematic RF IN RF OUT 40 dB VLFX-780 INSERTION LOSS 20 dB VLFX-780 VSWR 1000 90 80 1 dB fco f20 f40 FREQUENCY >20 GHz 70 60 100 VSWR 3 dB INSERTION LOSS(dB) ATTENUATION (dB) Typical Frequency Response VSWR (:1) 50 40 30 10 20 10 0 1 0 4000 8000 12000 16000 20000 0 FREQUENCY (MHz) Mini-Circuits (R) 4000 8000 12000 FREQUENCY (MHz) INTERNET http://www.minicircuits.com P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 Distribution Centers NORTH AMERICA 800-654-7949 * 417-335-5935 * Fax 417-335-5945 * EUROPE 44-1252-832600 * Fax 44-1252-837010 Mini-Circuits ISO 9001 & ISO 14001 Certified 16000 20000 REV. A M97025 VLFX-780 EDU-0399 ED-11930A/10 URJ/AD/CP 051229