VAM40

VAM 40 40 Watts, 27 Volts, Class AB Defcom 100 - 150 MHz GENERAL DESCRIPTION The VAM 40 is a COMMON EMITTER, specifically designed for collector modulated operation in the VHF AM applications in the 100-150 MHz range. CASE OUTLINE 55HT, Style 2 ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25oC Maximum Voltage and Current BVces Collector to Emiter Voltage BVebo Emitter to Base Voltage Ic Collector Current Maximum Temperatures Storage Temperature Operating Junction Temperature 50 Watts 60 Volts 4.0 Volts 5.0 A - 65 to +150 oC +200 oC ELECTRICAL CHARACTERISTICS @ 25 OC SYMBOL Pout Pin Pg Pout Pin Pg ηc VSWR CHARACTERISTICS Power Output Power Input Power Gain Power Output Power Input Power Gain Efficiency Load Mismatch Tolerance TEST CONDITIONS F = 150 MHz Vcc =27V, 1 KHz, 50% F = 150 MHz Vcc = 13.5 Volts F = 150 MHz, Po=10 W Vcc = 13.5 Volts MIN 40 10 10 3.2 11 4.0 TYP MAX UNITS Watts Watts dB Watts Watts dB % 2.0 8.0 65 30:1 BVebo BVces BVceo Ices Cob hFE θjc 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 4.0 60 32 30 25 100 3.5 Volts Volts Volts mA pF o 10 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 L1 C1 C2 L2 C3 L4 C4 C5 C6 C7 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