TetraFET D1221UK METAL GATE RF SILICON FET MECHANICAL DATA GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 10W – 12.5V – 175MHz SINGLE ENDED C 1 2 4 3 A B FEATURES F E G H D • SIMPLIFIED AMPLIFIER DESIGN • SUITABLE FOR BROAD BAND APPLICATIONS DW PIN 1 DRAIN PIN 2 SOURCE • LOW Crss PIN 3 GATE PIN 4 SOURCE • SIMPLE BIAS CIRCUITS • LOW NOISE DIM A B C D E F G H mm 26.16 5.72 45° 7.11 0.13 1.52 0.43 7.67 Tol. 0.38 0.13 5° 0.13 0.03 0.13 0.20 REF Inches 1.030 0.225 45° 0.280 0.005 0.055 0.060 0.120 Tol. 0.015 0.005 5° 0.005 0.001 0.005 0.008 REF • HIGH GAIN – 10 dB MINIMUM APPLICATIONS • HF/VHF/UHF COMMUNICATIONS from 1 MHz to 175 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 50W 40V ±20V 10A –65 to 150°C 200°C 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: [email protected] Website: http://www.semelab.co.uk Document Number 5316 Issue 1 D1221UK ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated) Parameter Test Conditions Min. BVDSS Drain–Source Typ. Max. Unit V VGS = 0 ID = 100mA VDS = 12.5V VGS = 0 1 mA VGS = 20V VDS = 0 1 µA VGS(th) Gate Threshold Voltage* ID = 10mA VDS = VGS 7 V gfs Forward Transconductance* VDS = 10V ID = 1A GPS Common Source Power Gain PO = 10W η Drain Efficiency VDS = 12.5V VSWR Load Mismatch Tolerance f = 175MHz IDSS IGSS Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current IDQ = 0.4A 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 0.8 S 10 dB 50 % 20:1 — VGS = –5V f = 1MHz 60 pF f = 1MHz 40 pF f = 1MHz 4 pF 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. 3.5°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. E-mail: [email protected] Website: http://www.semelab.co.uk Document Number 5316 Issue 1 D1221UK (IILFLHQF\ *DLQG% 9GV 9 ,GT $ I 0+] 9GV 9 ,GT $ I 0+] 3RXW: 3RXW: 7XQHGIRUPD[LPXPJDLQDW: 7XQHGIRUPD[LPXPRXWSXWSRZHU 7XQHGIRUPD[LPXPJDLQDW: 7XQHGIRUPD[LPXPRXWSXWSRZHU Figure 1 – Gain vs. Power Output. Figure 2 – Efficiency vs. Power Output. ,0' G%F D1221UK OPTIMUM SOURCE AND LOAD IMPEDANCE I 0+] I 0+] 9GV 9 ,GT $ Frequency MHz 175MHz ZS ZL Ω Ω 7.2 + j15 4.1 - j2.5 3RXW:3(3 7XQHGIRUPD[LPXPRXWSXWSRZHU Figure 3 – IMD vs. Power Output. Typical S Parameters ! # !Freq !MHz 50 100 150 200 250 300 350 400 450 500 550 600 VDS = 12.5V, IDQ = 0.4A MHZ S MA R 50 S11 mag 0.7 0.7 0.75 0.81 0.85 0.88 0.9 0.92 0.93 0.94 0.95 0.95 ang -116.5 -140 -150.2 -157.2 -163.1 -168.1 -172.6 -176.6 179.7 176.3 173.1 170. S21 mag 14.93 7.42 4.56 3.1 2.23 1.67 1.3 1.04 0.85 0.71 0.6 0.52 ang 97.9 73.6 58.1 46.5 37.4 30.3 24.7 20.3 17.1 14.9 13.5 13 S12 mag 0.036 0.03 0.02 0.016 0.026 0.04 0.055 0.071 0.086 0.101 0.115 0.13 S22 ang 15.7 2.7 11 52.3 82.6 90.1 90.8 89.2 86.8 84.2 81.5 78.8 mag 0.64 0.65 0.71 0.78 0.83 0.86 0.89 0.91 0.92 0.93 0.94 0.95 ang -108.4 -132 -143.1 -151.2 -157.9 -163.7 -168.8 -173.4 -177.5 178.7 175.2 171. 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: [email protected] Website: http://www.semelab.co.uk Document Number 5316 Issue 1 D1221UK 9 *DWH%LDV . / Q) . S) D1221UK [PP FRQWDFWSDG 7 S) [PP FRQWDFWSDG Q) Q) X) S) / 7 / 7 Q) / 7 S) S) 6XEVWUDWHPP37)(JODVV(U $OOPLFURVWULSOLQHV: PP 7PP 7PP 7PP 7PP / WXUQVVZJHQDPHOOHGFRSSHUZLUHPPLG /WXUQVVZJHQDPHOOHGFRSSHUZLUHPPLG / WXUQVVZJHQDPHOOHGFRSSHUZLUHPPLG /WXUQVVZJHQDPHOOHGFRSSHUZLUHRQ6LHPHQV %$;IHUULWHFRUH D1221UK 175MHz 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. E-mail: [email protected] Website: http://www.semelab.co.uk Document Number 5316 Issue 1