VTV150
15 Watts, 25 Volts
VHF Television - Band III
GENERAL DESCRIPTION
The VTV 150 is a COMMON EMITTER transistor capable of providing 15
Watts Peak Sync, Class A, RF Output Power over the band 175 - 225 MHz. It
is designed for high efficiency, high linereity, Class A operation. Gold
Metalization and Diffused Ballasting are used to provide high reliability and
supreme ruggedness.
CASE OUTLINE
55HV, STYLE 2
ABSOLUTE MAXIMUM RATINGS
Maximum Power Dissipation @ 25
o
C
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
97 Watts
45 Volts
25 Volts
4.0 Volts
8.0 Amps
- 65 to + 150
o
C
+ 200
o
C
ELECTRICAL CHARACTERISTICS @ 25
O
C
SYMBOL
Pout
Pin
Pg
η
IMD
1
VSWR
1
LVceo
BVces
BVebo
h
FE
Cob
θjc
Note 1:
CHARACTERISTICS
Power Out - Pk Sync
1
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 = 2.4 Amps
Pref = 15 Watts
F = 225 MHz
Ic = 25 mA
Ic = 100mA
Ie = 10mA
Vce = 5 V, 1 mA
Vcb = 25 V, F = 1 MHz
Tc = 25
o
C
28
45
4.0
10
68
1.6
1.8
MIN
15
8.0
TYP
20
1.9
9.0
33
-52
3:1
Volts
Volts
Volts
pF
C/W
MAX
UNITS
Watts
Watts
dB
%
dB
o
European test method, Vision = - 8dB, Sideband= - 16dB, Sound = -7 dB
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-150
VTV-150 RF Test Circuit (Tunable 175-225 MHz)
Recommended Bias: V
CE
=25 V, I
C
=2.4 A (DC Bias not shown)
R
1
v
bb
L
6
R
2
V
cc
C
10
C
11
C
12
C
13
L
5
C
14
C
15
C
16
C
17
L
4
.83"
.56"
C
1
L
1
.30"
.51"
.34"
.94"
C
3
Q
1
C
4
C
5
C
6
C
7
L
2
.32"
C
9
C
2
C
8
C1, C9, C13, C14 ........ 470pF ceramic chip
C2, C3, C8 .................. 5-70pF compressed mica
C4 ............................... 75pF ceramic chip
C5 ............................... 82pF ceramic chip
C6 ............................... 2-20pF air tuned
C7 ............................... 25-240pF compressed mica
C10, C17 ..................... 50 mF electrolytic
C11, C16 ..................... 1mF electolytic
C12, C15 ..................... 1000pF ceramic chip
L1 ................... Cu strap, 1.20" X .12" X .03"
L2 ................... Cu strap, 1.05" X .12" X .04"
L3, L6 .............. 10 turns #22 wire on F627-8Q1
L4 ................... 4.7 m H
L5 ................... 7 turns #22 wire (0.15" outer diameter)
R
1
, R
2
.................15 W 1/2- Watt carbon
BOARD MATERIAL is 1/16" Teflon glass,
2 oz. Cu microstriplines are 50W nominal.
August 1996
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