TetraFET DMD1020 DMD1020-A METAL GATE RF SILICON FET MECHANICAL DATA B C (2 pls) 2 G (typ) 3 1 H P (2 pls) A D 5 4 E (4 pls) GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 150W - 28V - 400MHz PUSH-PULL F I FEATURES * SUITABLE FOR BROAD BAND APPLICATIONS N PIN 1 PIN 3 PIN 5 M O SOURCE (COMMON) DRAIN 2 GATE 1 DIM A B C D E F G H I J K M N O P J D1 Millimetres 15.24 10.80 45 9.78 8.38 27.94 1.52R 10.16 21.84 0.10 1.96 1.02 4.45 34.04 1.63R PD BVDSS BVGSS ID(sat) Tstg Tj PIN 2 PIN 4 K DRAIN 1 GATE 2 * SIMPLE BIAS CIRCUITS * ULTRA-LOW THERMAL RESISTANCE * BeO FREE Tol. 0.50 0.13 5 0.13 0.13 0.13 0.13 0.15 0.23 0.02 0.13 0.13 0.38 0.13 0.13 Inches 0.600 0.425 45 0.385 0.330 1.100 0.060R 0.400 0.860 0.004 0.077 0.040 0.175 1.340 0.064R Tol. 0.020 0.005 5 0.005 0.005 0.005 0.005 0.006 0.009 0.001 0.005 0.005 0.015 0.005 0.005 * LOW Crss * HIGH GAIN - 13 dB MINIMUM APPLICATIONS * VHF/UHF COMMUNICATIONS from 1 MHz to 500 MHz Power Dissipation Drain - Source Breakdown Voltage * Gate - Source Breakdown Voltage* Drain Current* Storage Temperature Maximum Operating Junction Temperature 760W (389W -A Version) 70V 20V 25A -65 to 150C 200C * Per Side Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished 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 omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6984 Issue 1 DMD1020 DMD1020-A ELECTRICAL CHARACTERISTICS (Tcase = 25C unless otherwise stated) Parameter Test Conditions Min. Typ. Max. Unit PER SIDE BVDSS IDSS Drain-Source Breakdown Voltage Zero Gate Voltage Drain Current ID = 100mA 70 VDS = 28V VGS = 0 5 mA 1 A 7 V IGSS Gate Leakage Current VGS = 20V VDS = 0 VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS 1 gfs Forward Transconductance* VDS = 10V ID = 5A 4 ID = 10mA VDS = VGS VGS(th)match Gate Threshold Voltage Matching Between Sides V VGS = 0 mhos 0.1 V TOTAL DEVICE GPS Common Source Power Gain PO = 150W Drain Efficiency VDS = 28V VSWR Load Mismatch Tolerance f = 400MHz IDQ = 2A 13 dB 50 % 20:1 -- PER SIDE Ciss Input Capacitance VDS = 28V VGS = -5V f = 1MHz 300 pF Coss Output Capacitance VDS = 28V VGS = 0 f = 1MHz 150 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0 f = 1MHz 10 pF * Pulse Test: Pulse Duration = 300 s , Duty Cycle 2% THERMAL DATA RTHj-case Thermal Resistance Junction - Case Max. 0.23C / W 0.45 C / W -A Version Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished 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 omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6984 Issue 1 DMD1020 DMD1020-A 18 70 16 60 14 50 12 Gain dB 10 40 Efficiency % 8 30 Vds = 28V Idq = 2A 6 4 Vds = 28V Idq = 2A 20 10 2 0 0 0 25 50 75 100 125 150 Pout W 175 0 25 50 200 400MHz 500MHz 75 100 125 Pout W 150 175 200 400MHz 500MHz Figure 2 - Efficiency vs Power Output Figure 1- Gain vs. Power Output -15 -20 -25 IMD3 -30 dBc -35 Vds = 28V Idq = 2A -40 -45 -50 0 25 50 75 100 125 150 175 Pout (W) PEP 200 400MHz 500MHz Figure 3 - IMD vs Power Output Typical S Parameters !DMD1020UK.s2p !Vds=28V,Idq=2A # MHZ S MA R 50 Freq MHz 100 200 300 400 500 600 700 800 900 1000 S11 Mag 0.926 0.981 0.990 0.995 0.996 0.997 0.997 0.998 0.998 0.998 S21 Ang -167.4 -176.2 180.0 176.7 174.4 171.9 169.9 168.0 165.8 164.0 Mag 3.56 0.88 0.43 0.24 0.16 0.11 0.09 0.08 0.07 0.07 S12 Ang 26.4 11.9 7.9 7.0 8.6 13.1 18.8 25.7 34.3 40.9 Mag 0.002 0.009 0.014 0.020 0.025 0.031 0.035 0.040 0.046 0.051 S22 Ang 81.3 91.7 89.8 87.6 86.1 84.3 83.0 81.6 80.1 78.8 Mag 0.963 0.990 0.995 0.997 0.998 0.998 0.998 0.998 0.998 0.998 Ang -173.6 -177.8 -179.5 179.0 178.0 177.0 176.2 175.4 174.5 173.7 Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished 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 omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6984 Issue 1 DMD1020 DMD1020-A 35 30 Vg=13 V Vg=12 V Vg=11 V Vg=10 V Vg=9V Vg=8 V Vg=7 V Vg=6 V Vg=5 V 25 20 IDS (A) 15 10 5 0 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 VDS (V) Figure 4 - Typical IV Characteristics. Capacitance pF 1000 100 Output capacitance Input Capacitance Reverse transfer capacitance 10 1 0 5 10 15 20 25 30 Vds V Figure 5 - Typical CV Characteristics. Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished 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 omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6984 Issue 1 DMD1020 DMD1020-A +28V 0.1uF GateBi 47K 7 x 4 mm contact pad 1nF 7 x 4mm contact pad 100uF 15 DMD1020 100K L2 620pF 2-18pF T4 47pF T2 T1 620pF L1 27pF 2-18pF 620pF 20-55pF T5 T3 620pF 620pF 7 x 4mm contact pad 7 x 4 mm contact pad T6 2-18pF DMD1020 400MHz TEST FIXTURE T1 T2,3,4,5 T6 L1 L2 11cm 50 Ohm UT47 semi-rigid coax 8.9cm 18 Ohm UT62-18 semi-rigid coax 9.4cm 50 Ohm UT85 semi-rigid coax 5.5 turns 18swg enamelled copper wire on Fair-Rite FT50B-43 ferrite core 6 turns 18swg enamelled copper wire, 3.5mm internal diameter Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished 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 omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6984 Issue 1 DMD1020 DMD1020-A +28V 10K Gate-Bias 56p 0.1u 100nF 2.7 DMD1020 T10 330p T1 T2 T3 330p T4 T6 T8 33p 6.7p A L1 4.7K 3.3K 1u T12 10p 330p T14 1-16pF 10p T16 T5 T7 T9 T11 T13 DMD1020 T15 330p L2 4.7K 56p 1u 2.7 A 0.1u 5.6K L3 4.7 +28V Drain-Bias 500MHz TEST FIXTURE Substrate 0.78mm, Er=3.3 All microstrip lines W=10mm unless otherwise stated T14 7mm wide 6mm long T1 70mm 50 Ohm Coaxial cable T2,T3 50mm 25 Ohm Coaxial cable T15 7mm wide 6mm long T4, T5 L=3.8mm T16 80mm 50 Ohm Coaxial Cable T6, T7 L=10.6mm T8, T9 L=5.6mm T10, T11, T12,13 L=14mm L1 = L2 3 turns 1mm diameter enamelled copper wire, 5mm i.d. Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished 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 omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Document Number 6984 Issue 1