VAM 120
120 Watts, 27 Volts, Class AB
Defcom 100 - 150 MHz
CASE OUTLINE
55HT, Style 2
GENERAL DESCRIPTION
The VAM 120 is a COMMON EMITTER device designed to operae in a
collector modulated VHF power amplifier. It is a common emitter device,
optimized for use in the 100-150 MHz range.
ABSOLUTE MAXIMUM RATINGS
Maximum Power Dissipation @ 25oC
140 Watts
Maximum Voltage and Current
BVces Collector to Emiter Voltage
BVebo Emitter to Base Voltage
60 Volts
4.0 Volts
12 A
Ic
Collector Current
Maximum Temperatures
Storage Temperature
Operating Junction Temperature
- 65 to +150oC
+200oC
ELECTRICAL CHARACTERISTICS @ 25 OC
SYMBOL
CHARACTERISTICS
TEST CONDITIONS
MIN
TYP
MAX UNITS
Pout
Pin
Pg
Pout
Pin
Pg
Power Output
Power Input
Power Gain
F = 150 MHz
Vcc = 27 Volts
120
Watts
Watts
dB
Watts
Watts
dB
15
9.0
20
10
7.8
30
F = 150 MHz
Vcc = 13.5 Volts
7.5
6.0
65
4.8
Efficiency
Load Mismatch Tolerance
%
ηc
VSWR
30:1
BVebo
BVces
BVceo
Cob
Emitter to Base Breakdown
Collector to Emitter Breakdown
Collector to Emitter Breakdown
Output Capacitance
Ie = 5 mA
Ic = 20 mA
Ie = 50 mA
4.0
60
32
Volts
Volts
Volts
pF
240
hFE
DC - Current Gain
Thermal Resistance
Vce = 5 V, Ic = 1 A
10
1.2
oC/W
θjc
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