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| VTV300 30 Watts, 25 Volts VHF Television - Band III GENERAL DESCRIPTION The VTV 300 is a COMMON EMITTER transistor capable of providing 30 Watts Peak, Class A, RF Output Power over the band 175 - 225 MHz. It is designed for high efficiency, high linerity, Class A operation. Gold Metalization and Diffused Ballasting are used to provide high reliability and supreme ruggedness. CASE OUTLINE 55HV, STYLE 1 ABSOLUTE MAXIMUM RATINGS Maximum Power Dissipation @ 25oC Maximum Voltage and Current BVces Collector to Emitter Voltage BVceo Collector to Emitter Voltage BVebo Emitter to Base Voltage Ic Collector Current Maximum Temperatures Storage Temperature Operating Junction Temperature 146 Watts 45 Volts 25 Volts 4.0 Volts 14 Amps - 65 to + 150oC + 200oC ELECTRICAL CHARACTERISTICS @ 25 OC SYMBOL Pout Pin Pg IMD1 VSWR1 LVceo BVces BVebo hFE Cob jc CHARACTERISTICS Power Out - Pk Sync1 Power Input Power Gain Efficiency Intermodulation Distortion Load Mismatch Tolerance Collector to Emitter Breakdown Collector to Base Breakdown Emitter to Base Breakdown Current Gain Output Capacitance Thermal Resistance TEST CONDITIONS F = 175-225 MHz Vcc = 25 Volts Ic = 5.0 Amps Pref = 7.5 Watts F = 225 MHz Ic = 25 mA Ic = 100mA Ie = 10 mA Vce = 5 V, 1mA Vcb = 25V, F=1MHz Tc = 25oC 28 45 4.0 10 MIN 30 6 TYP 35 5 7 30 -50 3:1 MAX UNITS Watts Watts dB % dB Volts Volts Volts 40 135 1.0 pF C/W 1.2 o Note 1: European three tone test method: Vision carrier -8dB, sound carrier -7dB, sideband signal -16 dB, 0 dB corresponds to peak sync level. Issue October 1997 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 VTV 300 August 1996 VTV- 300 VTV-300 RF Test Circuit (Tunable 175-225 MHz) Recommended Bias: VCE=25V, IC=5.0 A (DC Bias not shown) R4 VB VC R2 L8 C11 C12 L9 C13 C14 C15 C16 C17 C18 C5 L2 C1 C2 L1 C3 L3 Q1 C4 C6 L4 C7 L5 L6 C8 L7 C10 C9 C1, C10, C11, C18........ 220pf ceramic chip C2.................................. 5-70pf compression mica C3, C7........................... 11-170pf compression mica C4, C5, C6..................... 68 pf ceramic chip C8, C9........................... 4-40pf compression mica C12, C17....................... 390 ceramic chip C13, C16....................... 1mf electrolytic C14, C15....................... 50 mf electrolytic L1................................. Copper strap 1,20" x .10" x .025" L2..................... 0.1 nH wire wound L3..................... 50 W line .925" long L4..................... 50 W line .465" long L5..................... 5 turns #24 wire, .12" I.D. L6..................... Copper strap 1.10" x .15" x .075" L7..................... 50 W line .960" long L8, L9................ 9 turns #22 wire on F627-8 Q1 torroid R1, R2............... 15 W 1/2 watt carbon (10%) Board Material is 1/16" Teflon Fiberglass. August 1996 |
Price & Availability of VTV300
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