TetraFET D2294UK METAL GATE RF SILICON FET MECHANICAL DATA GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 15W – 12.5V – 500MHz SINGLE ENDED FEATURES • SIMPLIFIED AMPLIFIER DESIGN • SUITABLE FOR BROAD BAND APPLICATIONS • VERY LOW Crss • SIMPLE BIAS CIRCUITS • LOW NOISE • HIGH GAIN – 11 dB MINIMUM SOT 171 PIN 1 SOURCE PIN 2 SOURCE PIN 3 GATE PIN 4 DRAIN APPLICATIONS PIN 5 SOURCE PIN 6 SOURCE • HF/VHF/UHF COMMUNICATIONS from 1 MHz to 1 GHz 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. E-mail: [email protected] Website http://www.semelab.co.uk 50W 40V ±20V 12A –65 to 150°C 200°C Prelim. 01/01 D2294UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. BVDSS Drain–Source Typ. Max. Unit V VGS = 0 ID = 10mA VDS = 12.5V VGS = 0 1 mA VGS = 20V VDS = 0 6 mA VGS(th) Gate Threshold Voltage * ID = 10mA VDS = VGS 7 V gfs Forward Transconductance * VDS = 10V ID = 0.6A GPS Common Source Power Gain PO = 15W Drain Efficiency VDS = 12.5V VSWR Load Mismatch Tolerance f = 500MHz IDSS IGSS h Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current IDQ = 0.6A Ciss Input Capacitance VDS = 0 Coss Output Capacitance VDS = 12.5V VGS = 0 Crss Reverse Transfer Capacitance VDS = 12.5V VGS = 0 * Pulse Test: 40 1 1.08 S 11 dB 50 % 20:1 — VGS = –5V f = 1MHz 72 pF f = 1MHz 60 pF f = 1MHz 6 pF Pulse Duration = 300 ms , 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. E-mail: [email protected] Website http://www.semelab.co.uk Max.3.5°C / W Prelim. 01/01 D2294UK 3RXW : I ,GT 9GV 0+] $ 9 3LQ: *DLQ G% 3RXW : I ,GT 9GV 3LQ: 3RXW *DLQ Figure 1 Output power and Gain vs. Input Power 0+] $ 9 'UDLQ(IILFLHQF\ 3RXW 'UDLQ(IILFLHQF\ Figure 2 Output power and Efficiency vs. Input Power I 0+]9GV 9 ,'4 $ ,'4 $ ,'4 $ ,'4 $ OPTIMUM SOURCE AND LOAD IMPEDANCE *DLQ G% Frequency ZL MHz W ZS 500 1.7 + j5.7 3.3+j1.1 W 3RXW: Figure 3 Gain vs Output Power Semelab plc. Telephone +44(0)1455) 556565. Fax +44(0)1455) 552612. E-mail: [email protected] Website http://www.semelab.co.uk Prelim. 01/01 D2294UK Typical S Parameters ! Vds=12.5V, Idq=0.6A # MHZ S MA R 50 Semelab plc. Freq S11 S21 S12 MHz mag ang mag 70 0.73 -137 14.61 92 0.02 2 0.67 -154 100 0.74 -146 10.8 83 0.02 -3 0.69 -159 150 0.76 -154 6.86 69 0.019 -13 0.73 -163 200 0.78 -159 4.8 60 0.017 -18 0.76 -165 250 0.8 -162 3.6 52 0.015 -22 0.79 -167 300 0.82 -165 3 47 0.014 -22 0.82 -168 350 0.84 -167 2.27 38 0.012 -23 0.84 -171 400 0.86 -169 1.92 34 0.01 -23 0.86 -172 450 0.88 -171 1.52 27 0.008 -20 0.88 -174 500 0.89 -173 1.31 24 0.006 -8 0.89 -175 550 0.9 -174 1.09 19 0.006 7 0.91 -177 600 0.92 -175 0.94 12 0.006 17 0.92 -178 650 0.93 -176 0.74 12 0.006 33 0.93 -180 700 0.94 -178 0.65 7 0.007 39 0.94 179 750 0.94 -180 0.53 8 0.007 49 0.94 178 800 0.95 180 0.43 8 0.008 54 0.95 177 850 0.95 180 0.39 14 0.009 65 0.95 176 900 0.96 178 0.37 15 0.011 69 0.96 175 950 0.95 177 0.35 19 0.013 72 0.95 174 1000 0.95 177 0.34 17 0.014 71 0.96 173 ang mag S22 ang Telephone +44(0)1455) 556565. Fax +44(0)1455) 552612. E-mail: [email protected] Website http://www.semelab.co.uk mag ang Prelim. 01/01 D2294UK G a te -B ia s 0 .1 u F 3 .3 K L 1 D 2 2 9 4 U K 3 .3 K 1 5 p F T 1 3 0 p F 1 0 0 u F L 2 1 0 0 0 p F 0 .1 u F + 1 2 .5 V 2 2 1 0 0 0 p F T 2 2 -1 8 p F T 3 T 4 2 -1 8 p F T 5 1 -3 .5 p F 3 0 p F 500MHz Test Fixture Substrate 1.6mm FR4 All microstrip lines W = 2.75mm Semelab plc. T1 T2 T3 T4 T5 47mm 9mm 9mm 13mm 32mm L1 L2 7 turns 24swg enamelled copper wire, 2mm i.d. 1.5 turns 24swg enamelled copper wire on ferrite core Telephone +44(0)1455) 556565. Fax +44(0)1455) 552612. E-mail: [email protected] Website http://www.semelab.co.uk Prelim. 01/01