ec== :--=s = e = .-- = = = -r--= =z r = an amp company rf mosfet power transistor, 5w, 28v 2 - 175 mhz DU2805S features l n-channel enhancement mode device l dmos structure l lower capacitances for broadband operation l high saturated output power l lower koise figure than bipolar devices absolute maximum ratings at 25c parameter symbol rating units drain-sourcevoltage v os 65 v gate-source voltage v 0s 20 i v drain-source current i ?05 i 1.4 i * i power dissipation junctiontemperature po 15.8 w t, 200 ?c ( storage temperature i tstg 1 -55to+150 i ?c i thermal resistance 0 jc 11.1 ?c/w v2.00 electrical characteristics at 25c specifications subject to change without notlce. m/a-com, inc. north america: tel. (800) 366-2266 m asia/pacific: tel. +81 (03) 3226-1671 l europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020
rf mosfet power transistor, 5w, 28v DU2805S v2.00 typical broadband performance curves capacitances vs voltage f=l .o mhz 6 5 z t4 2 $3 1 0 / v,, w power output vs power input v,,=28 v i,,=50 ma 0.01 0.02 0.04 0.1 0.2 0.3 0.4 0.45 2.5 5 10 15 20 25 30 35 power input(w) v,, (v) gain vs frequency 25 v,,=28 v i,,=50 ma p,,&o w 10 60 100 150 200 frequency (mhz) power output vs voltage v,,=28 v ido= ma f=175 mhz p,,=315 mw - continued next page - specifications subject to change wiiout notice. m/a-com, inc. north america: tel. (800) 366-2266 = asia/pacific: tel. +81 (03) 3226-1671 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020
rf mosfet power transistor, 5w, 28v DU2805S v2.00 typical device impedance frequency (mhz) z,, (ohms) 1 z,,,, (ohms) 100 15.0 - j 121.0 ( 57.0 + j 23.0 1 i 39.0 - j 77.0 1 55.0 + i 23.0 1 41 .o - j 38.0 1 56.0+ j 19.0 200 34.0 - j 14.0 56.0 + j 20.0 v,,=28 v, i,,=50 ma, pout=5 watts z,, is the series equivalent input impedance of the device from gate to gate. z load is the optimum series equivalent load impedance as measured from drain to ground. rf test fixture cl c2 c3 wc5 c6,cb c7 c9 cl0 ll i2 l3 ql board -il vds j4 l t 0 parts list trimmer capacitor 5-8opf trimmer capacitor 7-1oopf capacitor 15pf trimmer capacftor 918opf capacitor 1ooopf capacitor 5oopf feedthrough capacitor 1ooopf electrolytic capacitor 25uf 50 volts 2 turns of no. 12 awg on ?0.25 8 turns of no. 12 awg on ?0.25 1 turn of no. 12 awg w/ siemens double aperture core b62152-aoool-x001 DU2805S fr4 0.062? specifications subject to change without notice. m/a-com, inc. north america: 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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