TetraFET D1005UK METAL GATE RF SILICON FET MECHANICAL DATA A B C 2 1 D 4 E 3 GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 80W – 28V – 175MHz SINGLE ENDED M F G FEATURES • SIMPLIFIED AMPLIFIER DESIGN H J I K • SUITABLE FOR BROAD BAND APPLICATIONS DM PIN 1 SOURCE PIN 2 DRAIN • LOW Crss PIN 3 SOURCE PIN 4 GATE • SIMPLE BIAS CIRCUITS • LOW NOISE DIM A B C D E F G H I J K M mm 24.76 18.42 45° 6.35 3.17 Dia. 5.71 12.7 Dia. 6.60 0.13 4.32 3.17 26.16 Tol. 0.13 0.13 5° 0.13 0.13 0.13 0.13 REF 0.02 0.13 0.13 0.25 Inches 0.975 0.725 45° 0.25 0.125 Dia. 0.225 0.500 Dia. 0.260 0.005 0.170 0.125 1.03 Tol. 0.005 0.005 5° 0.005 0.005 0.005 0.005 REF 0.001 0.005 0.005 0.010 • HIGH GAIN – 16 dB MINIMUM APPLICATIONS • HF/VHF COMMUNICATIONS from 1 MHz to 175 MHz ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated) PD BVDSS BVGSS ID(sat) Tstg Tj Semelab plc. Power Dissipation Drain – Source Breakdown Voltage Gate – Source Breakdown Voltage Drain Current Storage Temperature Maximum Operating Junction Temperature Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] 146W 70V ±20V 20A –65 to 150°C 200°C Prelim. 6/99 D1005UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. BVDSS IDSS IGSS Drain–Source Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current VGS(th) Gate Threshold Voltage * Typ. Max. Unit V VGS = 0 ID = 100mA VDS = 28V VGS = 0 2 mA VGS = 20V VDS = 0 1 µA ID = 10mA VDS = VGS 7 V ID = 4A gfs Forward Transconductance * VDS = 10V GPS Common Source Power Gain PO = 80W η Drain Efficiency VDS = 28V VSWR Load Mismatch Tolerance f = 175MHz IDQ = 0.4A 70 1 3.2 S 16 dB 50 % 20:1 — Ciss Input Capacitance VDS = 0 VGS = –5V f = 1MHz 240 pF Coss Output Capacitance VDS = 28V VGS = 0 f = 1MHz 100 pF Crss Reverse Transfer Capacitance VDS = 28V VGS = 0 f = 1MHz 10 pF * Pulse Test: 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 Semelab plc. Thermal Resistance Junction – Case Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Max. 1.2°C / W Prelim. 6/99 D1005UK P out W 140 90 140 18 120 80 120 17 100 70 100 16 80 60 Drain Efficiency P out 80 60 50 % W 60 VDS = 28V IDQ = 0.4A 40 20 0 0 1 2 3 4 5 6 P in W 7 8 9 14 dB VDS = 28V 40 40 f = 175MHz 15 Gain 30 20 20 0 13 IDQ = 0.4A 12 f = 175MHz 0 1 2 3 4 5 6 P in W Pout Drain Efficiency Figure 1 – Power Output and Efficiency vs. Power Input. 7 8 9 11 Pout Gain Figure 2 – Power Output & Gain vs. Power Input. -10 -15 IMD3 dBc -20 D1005UK -25 OPTIMUM SOURCE AND LOAD IMPEDANCE -30 VDS = 28V -35 f1 = 175.0MHz -40 f2 = 175.1MHz IDQ = 0.4A -45 -50 Frequency MHz 175MHz 0 20 40 60 80 P out W PEP 100 120 ZS Ω 3 + j1 ZL Ω 3 - j2.5 Idq = 0.4A Figure 3 – IMD vs. Output Power. Typical S Parameters ! # !Freq MHz 50 100 150 200 250 300 350 400 450 500 Semelab plc. VDS = 28V, IDQ = 0.3A MHZ S MA R 50 S11 mag 0.95 0.94 0.94 0.93 0.94 0.95 0.96 0.96 0.97 0.98 ang -58 -79 -104 -124 -140 -152 -161 -169 -177 177 S21 mag 4.29 3.32 2.26 1.59 1.2 0.94 0.72 0.59 0.46 0.35 ang 94 81 65 53 41 34 22 19 11 -2 S12 mag 0.006 0.006 0.01 0.019 0.031 0.042 0.052 0.064 0.073 0.091 ang 34 57 98 107 103 102 92 91 84 82 Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] S22 mag 0.66 0.75 0.84 0.88 0.92 0.93 0.96 0.98 1.00 1.00 ang -162 -164 -169 -175 -180 176 170 164 159 154 Prelim. 6/99 D1005UK +28V Gate-Bias 10kΩ 1nF 10nF 22µF 1µF 10nF 10kΩ D1005UK 7 x 7 mm contact pad L3 5-57pF L2 T3 5-57pF T4 L1 T1 5-57pF T2 5-57pF 7 x 7mm contact pad D1005UK 175MHz TEST FIXTURE Substrate 1.6mm PTFE/ glass, Er= 2.5 All microstrip lines W= 4.4mm T1 T2 T3 T4 8mm 22mm 18mm 4.5mm Semelab plc. L1 L2 L3 Hairpin loop 16swg 15.5mm dia Hairpin loop 16swg 10mm dia 11 turns 18swg enamelled copper wire, 10mm i.d. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. Website: http://www.semelab.co.uk E-mail: [email protected] Prelim. 6/99