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| VAM 80 80 Watts, 27 Volts, Class AB Defcom 100 - 150 MHz GENERAL DESCRIPTION The VAM 80 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 85 Watts 60 Volts 4.0 Volts 8.5 A - 65 to +150 oC +200 oC ELECTRICAL CHARACTERISTICS @ 25 OC SYMBOL Pout Pin Pg Pout Pin Pg CHARACTERISTICS Power Output Power Input Power Gain TEST CONDITIONS F = 150 MHz Vcc =27V, 1 KHz, 50% F = 150 MHz Vcc = 13.5 Volts Efficiency Load Mismatch Tolerance MIN 80 9.0 20 6.0 Vcc = 13.5V, Po=20W 8 10 4.0 7.0 65 10 TYP MAX UNITS Watts Watts dB Watts Watts dB % 5.0 c VSWR 30:1 jc BVebo BVces BVceo Cob hFE Emitter to Base Breakdown Collector to Emitter Breakdown Collector to Emitter Breakdown Output Capacitance DC - Current Gain Thermal Resistance Ie = 5 mA Ic = 20 mA Ie = 50 mA Vcb = 28 V, F = 1 MHz Vce = 5 V, Ic = 1 mA 4.0 60 32 75 10 2.0 Volts Volts Volts 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 VAM80 August 1996 VAM80 150 MHz TEST AMPLIFIER L5 C2 L1 C10 C3 C1 L2 L3 C8 C9 C4 L4 C5 C7 C6 Vcc August 1996 C1, C2, C8, C9 ........... 4.40pF - compression Mica C3 ............................ 10pF - uncased mica C4 ............................ 250pF - uncased mica C5 ............................ .01mf ceramic C6 ............................ 1mf ceramic C7 ............................ 1/0mf electrolytic C10 .......................... 22pF - uncased mica L1 ............................ 1/2" x 5/8" x .01" copper strap L2 ............................ .68mh RFC L3 ............................ 4 turns #16 3/16" I.D. -1/2" long L4 ............................ 10mh RFC L5 ............................ 1 1/2" x 3/16" x .01" copper strap |
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