VAM 40 40 Watts, 27 Volts, Class AB Defcom 100 - 150 MHz GENERAL DESCRIPTION CASE OUTLINE The VAM 40 is a COMMON EMITTER, specifically designed for collector modulated operation in the VHF AM applications in the 100-150 MHz range. 55HT, Style 2 ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25oC 50 Watts Maximum Voltage and Current BVces Collector to Emiter Voltage BVebo Emitter to Base Voltage Ic Collector Current Maximum Temperatures Storage Temperature Operating Junction Temperature 60 Volts 4.0 Volts 5.0 A - 65 to +150 oC +200 oC ELECTRICAL CHARACTERISTICS @ 25 OC SYMBOL CHARACTERISTICS Pout Pin Pg Pout Pin Pg ηc VSWR Power Output Power Input Power Gain Power Output Power Input Power Gain Efficiency Load Mismatch Tolerance F = 150 MHz Vcc =27V, 1 KHz, 50% Emitter to Base Breakdown Collector to Emitter Breakdown Collector to Emitter Breakdown Collector Leakage Current Output Capacitance DC - Current Gain Thermal Resistance Ie = 5 mA Ic = 20 mA Ie = 50 mA Vce = 5 Volts Vcb = 28 V, F = 1 MHz Vce =5 V, Ic = 500 MA BVebo BVces BVceo Ices Cob hFE θjc TEST CONDITIONS F = 150 MHz Vcc = 13.5 Volts MIN TYP MAX 3.2 11 4.0 40 10 10 2.0 8.0 65 F = 150 MHz, Po=10 W Vcc = 13.5 Volts UNITS Watts Watts dB Watts Watts dB % 30:1 4.0 60 32 10 30 25 100 3.5 Volts Volts Volts mA pF o C/W Issue August 1996 GHz TECHNOLOGY INC. RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE. GHz RECOMMENDS THAT BEFORE THE PRODUCT(S) DESCRIBED HEREIN ARE WRITTEN INTO SPECIFICATIONS, OR USED IN CRITICAL APPLICATIONS, THAT THE PERFORMANCE CHARACTERISTICS BE VERIFIED BY CONTACTING THE FACTORY. GHz Technology Inc. 3000 Oakmead Village Drive, Santa Clara, CA 95051-0808 Tel. 408 / 986-8031 Fax 408 / 986-8120 VAM40 August 1996 VAM40 150 MHz TEST AMPLIFIER L3 C4 L1 C3 C1 L4 C2 L2 C5 C6 Vcc = +28 Volts C1, C2 .......... 4-40 pf Elmenco type 403 C3, C4 .......... 2-25 pf Elmenco type 402 C5 .............. .001 m f C6 .............. .1m f C7 ................ 10 m f L1 ................ 1/2 turn #16, 3/8" I.D. L2 ................ 1/Ouf RFC L3 ................ 3 turns #16, 3/8" I.D. L4 ................ 6 turns #16, 3/8" I.D. August 1996 C7