DMD1020 DMD1020-a document number 6984 issue 1 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders. p d power dissipation bv dss drain ? source breakdown voltage * bv gss gate ? source breakdown voltage* i d(sat) drain current* t stg storage temperature t j maximum operating junction temperature 760w (389w -a version) 70v 20v 25a ?65 to 150c 200c mechanical data m k j i o n a c ( 2p l s ) d f e ( 4p l s ) b g ( t y p ) p ( 2p l s ) 1 54 3 2 h gold metallised multi-purpose silicon dmos rf fet 150w ? 28v ? 400mhz push?pull applications ? vhf/uhf communications from 1 mhz to 500 mhz metal gate rf silicon fet tetrafet * per side d1 pin 1 source (common) pin 2 drain 1 pin 3 drain 2 pin 4 gate 2 pin 5 gate 1 features ? suitable for broad band applications ? simple bias circuits ? ultra-low thermal resistance ? beo free ? low crss ? high gain ? 13 db minimum dim millimetres tol. inches tol. a 15.24 0.50 0.600 0.020 b 10.80 0.13 0.425 0.005 c 45 5 45 5 d 9.78 0.13 0.385 0.005 e 8.38 0.13 0.330 0.005 f 27.94 0.13 1.100 0.005 g 1.52r 0.13 0.060r 0.005 h 10.16 0.15 0.400 0.006 i 21.84 0.23 0.860 0.009 j 0.10 0.02 0.004 0.001 k 1.96 0.13 0.077 0.005 m 1.02 0.13 0.040 0.005 n 4.45 0.38 0.175 0.015 o 34.04 0.13 1.340 0.005 p 1.63r 0.13 0.064r 0.005
DMD1020 DMD1020-a document number 6984 issue 1 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders. parameter test conditions min. typ. max. unit 70 5 1 17 4 0.1 13 50 20:1 300 150 10 v gs = 0 i d = 100ma v ds = 28v v gs = 0 v gs = 20v v ds = 0 i d = 10ma v ds = v gs v ds = 10v i d = 5a i d = 10ma v ds = v gs p o = 150w v ds = 28v i dq = 2a f = 400mhz v ds = 28v v gs = ?5v f = 1mhz v ds = 28v v gs = 0 f = 1mhz v ds = 28v v gs = 0 f = 1mhz v ma a v mhos v db % ? pf pf pf electrical characteristics (t case = 25c unless otherwise stated) drain?source breakdown voltage zero gate voltage drain current gate leakage current gate threshold voltage* forward transconductance* gate threshold voltage matching between sides common source power gain drain efficiency load mismatch tolerance input capacitance output capacitance reverse transfer capacitance r thj?case thermal resistance junction ? case max. 0.23c / w 0.45 c / w -a version thermal data * pulse test: pulse duration = 300 s , duty cycle 2% total device per side per side bv dss i dss i gss v gs(th) g fs v gs(th)match g ps vswr c iss c oss c rss
DMD1020 DMD1020-a document number 6984 issue 1 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders. typical s parameters !d md 1020uk.s2p !vds=28v,idq=2a freq mhz mag ang mag ang mag ang mag ang 100 0.926 -167.4 3.56 26.4 0.002 81.3 0.963 -173.6 200 0.981 -176.2 0.88 11.9 0.009 91.7 0.990 -177.8 300 0.990 180.0 0.43 7.9 0.014 89.8 0.995 -179.5 400 0.995 176.7 0.24 7.0 0.020 87.6 0.997 179.0 500 0.996 174.4 0.16 8.6 0.025 86.1 0.998 178.0 600 0.997 171.9 0.11 13.1 0.031 84.3 0.998 177.0 700 0.997 169.9 0.09 18.8 0.035 83.0 0.998 176.2 800 0.998 168.0 0.08 25.7 0.040 81.6 0.998 175.4 900 0.998 165.8 0.07 34.3 0.046 80.1 0.998 174.5 1000 0.998 164.0 0.07 40.9 0.051 78.8 0.998 173.7 s21 s12 s22 s11 #mhzsmar50 0 25 50 75 100 125 150 175 200 p out w 0 2 4 6 8 10 12 14 16 18 gain db 400mhz 500mhz v ds = 28v i dq = 2a 0 25 50 75 100 125 150 175 200 p out w 0 10 20 30 40 50 60 70 efficiency % 400mhz 500mhz v ds = 28v i dq = 2a figure 1- gain vs. power output 0 25 50 75 100 125 150 175 200 pout (w) pep -50 -45 -40 -35 -30 -25 -20 -15 imd3 dbc 400mhz 500mhz v ds = 28v i dq = 2a figure 3 - imd vs power output figure 2 - efficiency vs power output
DMD1020 DMD1020-a document number 6984 issue 1 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders. 0 5 10 15 20 25 30 35 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 v ds (v) i ds (a) v g =13 v v g =12 v v g =11 v v g =10 v v g =9v v g =8 v v g =7 v v g =6 v v g =5 v 1 10 100 1000 0 5 10 15 20 25 30 v ds v capacitance pf output capacitance input capacitance reverse transfer capacitance figure 4 ? typical iv characteristics. figure 5 ? typical cv characteristics.
DMD1020 DMD1020-a document number 6984 issue 1 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders. t1 620pf 620pf 100k t2 2-18pf 2-18pf 1nf 27pf t3 2-18pf 620pf l2 620pf 620pf l1 15 100uf 0.1uf 47k t6 t5 t4 47pf 20-55pf DMD1020 DMD1020 gate- bi 7 x 4mm contact pad 7 x 4mm contact pad 7 x 4 mm contact pad 7 x 4 mm contact pad +28v 400mhz test fixture t1 11cm 50 ohm ut47 semi-rigid coax t6 9.4cm 50 ohm ut85 semi-rigid coax l1 5.5 turns 18swg enamelled copper wire on fair-rite ft50b-43 ferrite core t2,3,4,5 8.9cm 18 ohm ut62-18 semi-rigid coax l2 6 turns 18swg enamelled copper wire, 3.5mm internal diameter
DMD1020 DMD1020-a document number 6984 issue 1 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk semelab plc reserves the right to change test conditions, parameter limits and package dimensions without notice. information f urnished by semelab is believed to be both accurate and reliable at the time of going to press. however semelab assumes no responsibility for any errors or omi ssions discovered in its use. semelab encourages customers to verify that datasheets are current before placing orders. 4.7k 0.1u 0.1u 330p 56p 1u l1 5.6k l3 4.7 2.7 2.7 100nf 3.3k 10k 4.7k 330p 33p 10p 1-16pf 10p l2 56p 1u DMD1020 DMD1020 6.7p 330p 330p gate-bias t4 t6 t8 +28v a a +28v drain-bias t11 t14 500mhz test fixture l1 = l2 3 turns 1mm diameter enamelled copper wire, 5mm i.d. t1 70mm 50 ohm coaxial cable t10, t11, t12,13 l=14mm substrate 0.78mm, er=3.3 t16 80mm 50 ohm coaxial cable t10 t12 t13 t7 t5 t9 t2 t3 t1 t16 t15 a ll microstrip lines w=10mm unless otherwise stated t14 7mm wide 6mm long t15 7mm wide 6mm long t4, t5 l=3.8mm t6, t7 l=10.6mm t8, t9 l=5.6mm t2,t3 50mm 25 ohm coaxial cable
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