e ec==.-- = :--=s = == = -r--= =z r = an AMP company RF MOSFET 2 - 175 MHz Power Transistor, 5W, 28V DU2805S v2.00 Features l l l l l N-Channel Enhancement Mode Device DMOS Structure Lower Capacitances for Broadband Operation High Saturated Output Power Lower Koise Figure Than Bipolar Devices Absolute Maximum Ratings at 25°C Parameter Symbol Rating Units V Drain-SourceVoltage VOS 65 Gate-Source Voltage V0s 20 I v 1.4 I * Drain-Source Current I ‘05 I Power Dissipation PO 15.8 W JunctionTemperature T, 200 “C ( Storage Temperature Thermal Resistance I TSTG 0JC Electrical Characteristics Specifications 1 -55to+150 11.1 I “C I I “C/w at 25°C Subject to Change Without Notlce. M/A-COM, North America: Tel. (800) 366-2266 Fax (800) 618-8883 m Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 l Europe: Inc. Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 RF MOSFET Power Transistor, DU2805S 5W, 28V v2.00 Typical Broadband Performance CAPACITANCES Curves vs VOLTAGE GAIN vs FREQUENCY F=l .O MHz V,,=28 25 V I,,=50 mA P,,&O W 10 60 100 v,, w POWER OUTPUT V,,=28 vs POWER INPUT V I,,=50 POWER OUTPUT mA V,,=28 V IDo= 5 10 200 150 FREQUENCY (MHz) vs VOLTAGE mA F=175 MHz P,,=315 mW 6 5 z t4 2 $3 1 / 0 0.01 0.02 0.04 0.1 0.2 POWER INPUT(W) 0.3 0.4 2.5 0.45 M/A-COM, 20 25 30 35 v,, (V) - Continued Specifications 15 Subject to Change Wiiout next page - Notice. Inc. North America: Tel. (800) 366-2266 Fax (800) 618-8883 = Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 n Europe: Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020 RF MOSFET Power Transistor, DU2805S 5W, 28V v2.00 Typical Device Impedance Frequency (MHz) Z,, (OHMS) 1 Z,,,, 15.0 - j 121.0 ( 57.0 + j 23.0 I 39.0 - j 77.0 1 55.0 + i 23.0 1 41 .O - j 38.0 1 56.0+ j 19.0 100 200 34.0 - j 14.0 V,,=28 Z,, is the series equivalent input impedance is the optimum series equivalent Z LOAD (OHMS) 1 56.0 + j 20.0 V, I,,=50 mA, POUT=5Watts of the device from gate to gate. load impedance as measured from drain to ground. RF Test Fixture VDS -IL J4 L 0 T PARTS LIST Cl TRIMMER CAPACITOR 5-8OpF c2 TRIMMER CAPACITOR 7-1OOpF c3 CAPACITOR 15pF wc5 TRIMMER CAPACfTOR 918OpF C6,CB CAPACITOR 1OOOpF c7 CAPACITOR 5OOpF c9 FEEDTHROUGH CAPACITOR 1OOOpF Cl0 ELECTROLYTIC Ll 2 TURNS OF NO. 12 AWG ON ‘0.25 CAPACITOR 25uF 50 VOLTS I2 8 TURNS OF NO. 12 AWG ON ‘0.25 1 TURN OF NO. 12 AWG W/ SIEMENS DOUBLE L3 APERTURE CORE B62152-AOOOl-X001 Ql DU2805S BOARD FR4 0.062” Specifications Subject to Change Without Notice. M/A-COM, North America: Tel. (800) 366-2266 Fax (800) 618-8883 n Asia/Pacific: Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451 Europe: Inc. Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020