s2zz-f rgy== e --- -=- -a5g =r- an amp company rf mosfet power transistor, 6ow, 28v 2 - 175 mhz DU2860U features v2.00 a 4gl. n-channel enhancement mode device dmos structure lower capacitances for broadband operation high saturated output power lower noise figure than bipolar devices . . absolute maximum ratings at 25c electrical characteristics at 25c specifications subject to change without notice. iwa-com, inc. north america: tel. (800) 366-2266 n asia/pacific: tel. +81 (03) 3226-1671 m europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +i4 (1344) 300 020
rf mosfet power transistor, 6ow, 28v v2.00 typical broadband performance curves gain vs frequency v,,=28 v 1,0=300 ma p,,,.,.=60 w =z efficiency vs frequency 80 , v,,=28 v i,,=300 ma p,,~60 w i? . * 50 100 150 200 frequency (mhz) 25 50 loo 150 200 freouency (mhz) power output vs power input v,,=20 v i,,=300 ma 1 ? 0 0.5 1 1.5 2 2.5 2.75 3 power input(w) specifications subject to change without notice. m/a-com, inc. north america: tel. (800) 366-2266 = asia/pacific: tel. +81 (03) 3226-1671 fax (800) 618-8883 fax +81 (03) 3226-1451 n europe: tel. +44 (1344) 869 595 fax +44 (1344) 300 020
rf mosfet power transistor, 6ow, 28v DU2860U v2.00 typical device impedance frequency (mhz) 30 50 100 200 z,,., (ohms) z load (ohms) 9.0 - j 4.0 6.0 + j 0.0 6.0 - j 5.8 5.0 + j 2.0 4.0 - j 4.2 4.0 + j 3.0 1.0 -j 1.0 2.ocj 1.9 v,,=28 v, i,,=300 ma, po,,=60 watts z,, is the series equivalent input impedance of the device from gate to source. z load is the optimum series equivalent load impedance as measured from drain to ground. rf test fixture vds = 28 volts idq = 3ooma vgs j3 p rf in jl cl vds j4 p l3 rf out ql i2 c8 j2 i - 1. iy . . w /(, c7 + ?7 $ c6 cl,c3 c2,c9 c4,c5 c6,cx c7 ll i2 l3 ri ql board parts list trimmer capacitor 4-4opf capacitor 5opf feedthrough capacitor 0.001 uf trimmer capacitor 9-18opf capacitor 15pf no. 12 awg copper wire x 1.18? (loop 0.5?) no. 12 awg copper wire x 1? (loop 0.4?) 6 turns of no. 18 awg enamel wire on ?0.25?, close wound resistor 300 ohms 0.5 walt DU2860U fr4 0.062 m/a-com, inc. north america: specifications subject to change without notice. tel. (800) 366-2266 fax (800) 618-8883 n asia/pacific: tel. +81 (03) 3226-1671 fax +81 (03) 3226-1451 europe: tel. +44 (1344) 869 595 fax +44 (1344) 300 020
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