GHZTECH VAM80

VAM 80
80 Watts, 27 Volts, Class AB
Defcom 100 - 150 MHz
GENERAL DESCRIPTION
CASE OUTLINE
The VAM 80 is a COMMON EMITTER, specifically designed for collector
modulated operation in the VHF AM applications in the 100-150 MHz range.
55HT, Style 2
ABSOLUTE MAXIMUM RATINGS
Maximum Power Dissipation @ 25oC
85 Watts
Maximum Voltage and Current
BVces Collector to Emiter Voltage
BVebo Emitter to Base Voltage
Ic
Collector Current
Maximum Temperatures
Storage Temperature
Operating Junction Temperature
60 Volts
4.0 Volts
8.5 A
- 65 to +150 oC
+200 oC
ELECTRICAL CHARACTERISTICS @ 25 OC
SYMBOL
CHARACTERISTICS
Pout
Pin
Pg
Pout
Pin
Pg
ηc
VSWR
Power Output
Power Input
Power Gain
BVebo
BVces
BVceo
Cob
hFE
θjc
TEST CONDITIONS
F = 150 MHz
Vcc =27V, 1 KHz, 50%
F = 150 MHz
Vcc = 13.5 Volts
MIN
Emitter to Base Breakdown
Collector to Emitter Breakdown
Collector to Emitter Breakdown
Output Capacitance
DC - Current Gain
Thermal Resistance
9.0
20
8
10
10
4.0
7.0
65
5.0
UNITS
Watts
Watts
dB
Watts
Watts
dB
%
30:1
Vcc = 13.5V, Po=20W
Ie = 5 mA
Ic = 20 mA
Ie = 50 mA
Vcb = 28 V, F = 1 MHz
Vce = 5 V, Ic = 1 mA
MAX
80
6.0
Efficiency
Load Mismatch Tolerance
TYP
4.0
60
32
75
Volts
Volts
Volts
pF
10
2.0
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
C8
L1
C10
C3
C1
L3
L2
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
C9