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

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 @ 25 C

85 Watts

o

Maximum Voltage and Current

BVces

Collector to Emiter Voltage

60 Volts

BVebo

Emitter to Base Voltage

4.0 Volts

Ic

Collector Current

8.5 A

Maximum Temperatures

Storage Temperature

- 65 to +150 C

o

Operating Junction Temperature

+200 C

o

ELECTRICAL CHARACTERISTICS @ 25 C

O

SYMBOL

CHARACTERISTICS

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Pout

Pin

Pg

Pout

Pin

Pg

VSWR

Power Output

Power Input

Power Gain

Efficiency

Load Mismatch Tolerance

F = 150 MHz

Vcc =27V, 1 KHz, 50%

F = 150 MHz

Vcc = 13.5 Volts

Vcc = 13.5V, Po=20W

80

9.0

20

6.0

8

10

4.0

7.0

65

10

5.0

30:1

Watts

Watts

dB

Watts

Watts

dB

%

BVebo

BVces

BVceo

Cob

h

FE

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

10

75

2.0

Volts

Volts

Volts

pF

C/W

o

Issue August 1996