TetraFET DMD1029 DMD1029-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 350W – 28V – 175MHz 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 PIN 2 PIN 4 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 K DRAIN 1 GATE 2 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 • SIMPLE BIAS CIRCUITS • ULTRA-LOW THERMAL RESISTANCE • BeO FREE • LOW Crss • HIGH GAIN – 16 dB MINIMUM APPLICATIONS • VHF/UHF COMMUNICATIONS from 1 MHz to 400 MHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) PD BVDSS BVGSS ID(sat) Power Dissipation Drain – Source Breakdown Voltage * Gate – Source Breakdown Voltage* Drain Current* Tstg Tj Storage Temperature Maximum Operating Junction Temperature 875W (438W -A Version) 70V ±20V 35A –65 to 150°C 200°C * 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. Website: http://www.semelab.co.uk E-mail: [email protected] Document Number 6859 Issue 3 DMD1029 DMD1029-A ELECTRICAL CHARACTERISTICS (Tcase = 25°C 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 VDS = 28V VGS = 0 7 mA 7 µA 7 V IGSS Gate Leakage Current VGS = 20V VDS = 0 VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS gfs Forward Transconductance* VDS = 10V ID = 6A ID = 10mA VDS = VGS VGS(th)match Gate Threshold Voltage Matching Between Sides V VGS = 0 70 1 mhos 5.6 0.1 V TOTAL DEVICE GPS Common Source Power Gain PO = 350W η Drain Efficiency VDS = 28V VSWR Load Mismatch Tolerance f = 175MHz Ciss Input Capacitance VDS = 28V VGS = –5V f = 1MHz 420 pF Coss Output Capacitance VDS = 28V VGS = 0 f = 1MHz 210 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0 f = 1MHz 17.5 pF IDQ = 2A 16 dB 60 % 20:1 — PER SIDE * Pulse Test: Pulse Duration = 300 µs , Duty Cycle ≤ 2% THERMAL DATA RTHj–case Thermal Resistance Junction – Case Max. 0.2°C / W 0.4 °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. Website: http://www.semelab.co.uk E-mail: [email protected] Document Number 6859 Issue 3 DMD1029 DMD1029-A 24 80 21 70 18 60 15 Gain dB 50 Efficiency % 12 9 40 30 6 20 3 10 0 0 0 50 100 150 200 250 300 350 400 175MHz, Idq=2A, Vds=28V 350MHz, Idq=1.4A, Vds=30V 0 Figure 1 – Gain vs. Power Output. 50 100 150 200 250 300 350 400 175MHz, Idq=2A, Vds=28 350MHz, Idq=1.4A, Vds=30 Pout W Pout W Figure 2 – Efficiency vs. Power Output. -10 -20 IMD3 -30 dBc f1 = 175 MHz f2 = 175.1 MHz Vds = 28V Idq = 2A -40 -50 -60 0 50 100 150 200 Pout W PEP 250 300 350 IMD3 (dBc) Figure 3 – IMD vs. Power Output 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. Website: http://www.semelab.co.uk E-mail: [email protected] Document Number 6859 Issue 3 DMD1029 DMD1029-A 50 45 40 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 35 30 IDS (A) 25 20 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 10 Input Capacitance Reverse transfer capacitance 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. Website: http://www.semelab.co.uk E-mail: [email protected] Document Number 6859 Issue 3 DMD1029 DMD1029-A L2 10k Gate-Bias 100n 1n 1n 100k L1 T2 28V 100n 12 1n 100u T4 DMD1029 680pF T6 1u T1 2-18 pF 90pF 47pF 2-18 pF 680pF 1u T5 T3 DMD1029 DMD1029 175MHz TEST JIG T1 7cm RG316 coax on Siemens A1 x 1 2 hole core T2,3 7cm RG316 coax on Siemens A1 x 1 2 hole core T4,5 14cm RG316 coax T6 11cm RG316 coax L2 1.5 turns 1mm dia wire on Siemens A1 x 1 2 hole core L1 8.5 turns 1mm dia wire, 4mm 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. Website: http://www.semelab.co.uk E-mail: [email protected] Document Number 6859 Issue 3