TetraFET D1208UK ROHS COMPLIANT METAL GATE RF SILICON FET MECHANICAL DATA GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 40W – 12.5V – 500MHz PUSH–PULL A C B (2 pls) K 3 2 1 E D 5 4 G (4 pls) F O FEATURES H M I J N DK PIN 1 SOURCE (COMMON) PIN 2 DRAIN 1 PIN 3 DRAIN 2 GATE 2 PIN 5 GATE 1 DIM A B C D E F G H I J K M N O PIN 4 • SIMPLIFIED AMPLIFIER DESIGN • SUITABLE FOR BROAD BAND APPLICATIONS • LOW Crss • SIMPLE BIAS CIRCUITS mm 6.45 1.65R 45° 16.51 6.47 18.41 1.52 5.08 24.76 1.52 0.81R 0.10 2.16 12.80 Tol. 0.13 0.13 5° 0.76 0.13 0.13 0.13 max 0.13 0.13 0.13 0.02 0.13 max Inches 0.254 0.065R 45° 0.650 0.255 0.725 0.060 0.200 0.975 0.060 0.032R 0.004 0.085 0.504 Tol. 0.005 0.005 5° 0.03 0.005 0.005 0.005 max 0.005 0.005 0.005 0.001 0.005 max • LOW NOISE • HIGH GAIN – 10 dB MINIMUM APPLICATIONS • HF/VHF/UHF COMMUNICATIONS from 1 MHz to 500 MHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) PD BVDSS BVGSS ID(sat) Tstg Tj Power Dissipation Drain – Source Breakdown Voltage* Gate – Source Breakdown Voltage* Drain Current* Storage Temperature Maximum Operating Junction Temperature 175W 40V ±20V 20A –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 3204 Issue 3 D1208UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. Typ. Max. Unit PER SIDE BVDSS Drain–Source V VGS = 0 ID = 100mA VDS = 12.5V VGS = 0 2 mA VGS = 20V VDS = 0 1 μA VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS 7 V gfs Forward Transconductance* VDS = 10V ID = 2A GPS Common Source Power Gain PO = 40W η Drain Efficiency VDS = 12.5V VSWR Load Mismatch Tolerance f = 400MHz IDSS IGSS Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current 40 1 1.6 S 10 dB 50 % 20:1 — TOTAL DEVICE IDQ = 1.6A PER SIDE Ciss Input Capacitance VDS = 0V Coss Output Capacitance VDS = 12.5V VGS = 0 Crss Reverse Transfer Capacitance VDS = 12.5V VGS = 0 * Pulse Test: 120 pF f = 1MHz 80 pF f = 1MHz 8 pF VGS = –5V f = 1MHz Pulse Duration = 300 μs , Duty Cycle ≤ 2% HAZARDOUS MATERIAL WARNING The ceramic portion of the device between leads and metal flange is beryllium oxide. Beryllium oxide dust is highly toxic and care must be taken during handling and mounting to avoid damage to this area. THESE DEVICES MUST NEVER BE THROWN AWAY WITH GENERAL INDUSTRIAL OR DOMESTIC WASTE. THERMAL DATA RTHj–case Thermal Resistance Junction – Case Max. 1.0°C / W 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 3204 Issue 3 D1208UK (IILFLHQF\ *DLQG% 9GV 9 ,GT $ I 0+] 3RXW: 9GV 9 ,GT $ I 0+] 3RXW: Figure 2 - Efficiency vs Power Output Figure 1- Gain vs. Power Output ,0' G%F OPTIMUM SOURCE AND LOAD IMPEDANCE I 0+] I 0+] 9GV 9 ,GT $ Frequency MHz ZS ZL Ω Ω 400 1.5 + j1.2 1.9 - j1.1 3RXW:3(3 Figure 3 - IMD vs Power Output Typical S Parameters ! # VDS = 12.5V, IDQ = 0.4A MHZ S MA R 50 Freq MHz 70 100 150 200 250 300 350 400 450 500 550 600 650 700 S11 mag 0.71 0.75 0.81 0.85 0.88 0.90 0.91 0.92 0.93 0.93 0.94 0.95 0.95 0.96 S21 ang -151.2 -156.2 -162.7 -167.4 -171.0 -173.9 -175.1 -177.9 -179.7 178.1 175.9 174.2 172.2 170.9 mag 9.5 6.1 3.7 2.4 1.7 1.3 1.0 0.8 0.7 0.6 0.5 0.4 0.3 0.2 S12 ang 73.1 62.2 50.4 44.0 36.6 34.5 26.0 23.4 17.6 13.3 8.2 2.5 8.9 19.2 mag 0.019 0.016 0.012 0.009 0.008 0.009 0.010 0.014 0.017 0.021 0.023 0.028 0.029 0.034 S22 ang -9.1 -13.2 -12.8 0.4 20.8 49.0 60.6 70.2 75.0 77.9 78.5 77.1 80.6 76.8 mag 0.77 0.79 0.83 0.86 0.88 0.89 0.90 0.91 0.92 0.93 0.93 0.94 0.95 0.95 ang -163.9 -166.0 -169.7 -172.8 -175.3 -176.6 -178.7 -180.0 178.6 176.8 175.4 174.4 172.9 171.8 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 3204 Issue 3 D1208UK 22 20 18 Vg=20V Vg=18 V Vg=16 V Vg=14 V Vg=12 V Vg=10 V Vg=8V Vg=6 V 16 IDS (A) 14 12 10 8 6 4 2 0 0.00 5.00 10.00 15.00 20.00 25.00 30.00 VDS (V) Figure 4 – Typical IV Characteristics. Capacitance pF 1000 100 Coss, pF Ciss, pF Crss, pF 10 1 0 3 6 Vds V 9 12 15 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 3204 Issue 3 D1208UK 9 . *DWH%LDV S) . S) [PP FRQWDFWSDG . 7 [PP FRQWDFWSDG S) X) X) / Q) S) S) 7 '8. 7 X) / S) S) S) 7 '8. S) 7 7 7 7 / / 7 [PP FRQWDFWSDG 7 S) [PP FRQWDFWSDG 2KPVHPLULJLGFRD[GLDFPORQJ 2KPVHPLULJLGFRD[GLDFPORQJRQ 6LHPHQV%$;IHUULWHFRUH 2KPVHPLULJLGFRD[GLDFPORQJ 2KPVHPLULJLGFRD[GLDFPORQJ WXUQVPPGLDHQDPHOOHGFRSSHUZLUHRQ6LHPHQV %$;IHUULWHFRUH WXUQVPPGLDHQDPHOOHGFRSSHUZLUHPPLQWHUQDOGLDPHWHU D1208UK 400MHz Test Fixture 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 3204 Issue 3