SD1894 PDF даташит
Спецификация SD1894 изготовлена «ST Microelectronics» и имеет функцию, называемую «RF & MICROWAVE TRANSISTORS SATELLITE COMMUNICATIONS APPLICATIONS». |
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Детали детали
Номер произв | SD1894 |
Описание | RF & MICROWAVE TRANSISTORS SATELLITE COMMUNICATIONS APPLICATIONS |
Производители | ST Microelectronics |
логотип |
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SD1894
RF & MICROWAVE TRANSISTORS
SATELLITE COMMUNICATIONS APPLICATIONS
......CLASS C
1.6 GHz
COMMON BASE
REFRACTORY/GOLD METALLIZATION
EFFICIENCY = 50% MIN.
POUT = 4.5 W MIN. WITH 10 dB GAIN
.250 x .320 2LFL (M170)
epoxy sealed
ORDER CODE
SD1894
BRANDING
SD1894
DE S CR I P TI ON
The SD1894 is a common base silicon NPNDabtiapSohlaeret4U.com
device optimized for 1.6 GHz SATCOM applica-
tions.
The SD1894 offers superior gain and collector effi-
ciency, making it an ideal choice for Class C power
amplifiers used in portable as well as fixed SAT-
COM terminals.
PIN CONNECTION
1. Collector
2. Emitter
3. Base
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ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C)
Symbol
Parameter
VCBO
Collector-Base Voltage
VCES
Collector-Emitter Voltage
VEB O
Emitter-Base Voltage
IC Device Current
PDISS
Power Dissipation
TJ Junction Temperature
TST G
Storage Temperature
THERMAL DATA
RTH(j-c) Junction-Case Thermal Resistance
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February 4, 1997
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V alu e
45
45
3.0
375
12. 5
+200
− 65 to +150
Unit
V
V
V
mA
W
°C
°C
14. 0
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°C/W
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SD1894
ELECTRICAL SPECIFICATIONS (Tcase = 25°C)
STATIC
Symbo l
Test Conditions
BVCBO
BVCES
BVEBO
ICBO
hFE
IC = 1 mA
IC = 1 mA
IE = 1 mA
VCB = 28 V
VCE = 5 V
IE = 0 mA
VBE = 0 V
IC = 0 mA
IE = 0 mA
IC = .2 A
V alu e
Min. Typ.
45 —
45 —
3.0 —
——
15 —
Max.
—
—
—
.25
150
Unit
V
V
V
mA
—
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DYNAMIC
Symbo l
PIN f = 1650 MHz
ηc f = 1650 MHz
PG f = 1650 MHz
Load VCC = 28 V
Mismatch
Test Conditions
VCC = 28 V
VCC = 28 V
VCC = 28 V
POUT = 4.5 W
POUT = 4.5 W
POUT = 4.5 W
POUT = 4.5 W
VSWR = 20:1
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M in .
V alu e
Typ.
Max.
Uni t
— .35 .45 W
50 55 — %
10.0 11.1 —
dB
No Degradation in
Output Power
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INPUT POWER vs OUTPUT POWER
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IMPEDANCE DATA
TYPICAL INPUT
IMPEDANCE
ZIN
TYPICAL COLLECTOR LOAD
IMPEDANCE
ZCL
SD1894
FREQ.
1600 MHz
1620 MHz
1635 MHz
1650 MHz
1665 MHz
ZIN (Ω)
ZCL (Ω)
31.6 + j 21.4 5.2 + j 14.7
38.0 + j 15.0 5.6 + j 14.55
38.8 + j 11.3 5.85 + j 14.45
36.0 + j 9.1 6.1 + j 14.3
34.3 + j 8.77 6.37 + j 14.2
TEST CIRCUIT
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C1 : .6 - 4.5 pf Johanson
C2 : 39pf ATC Chip Capacitor
C3 : .1µf Ceramic
L1 : 10 Turns, AWG #28, .080”I.D.
L2 : 4 Turns, AWG #28, .)80” I.D.
Board Material: Er = 10.2, Thickness .050”
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Номер в каталоге | Описание | Производители |
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SD1895-03 | RF & MICROWAVE TRANSISTORS 1.6 GHz SATCOM APPLICATIONS | ST Microelectronics |
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