SD1650 Datasheet, PDF (4/5 Pages) STMicroelectronics – RF & MICROWAVE TRANSISTORS CELLULAR BASE STATION APPLICATIONS

SD1650
IMPEDANCE DATA
TYPICAL INPUT
IMPEDANCE
Z_IN
TYPICAL COLLECTOR
LOAD IMPEDANCE
Z_CL
FREQ.
850 MHz
870 MHz
900 MHz
930 MHz
960 MHz
ZIN (Ω)
2.4 + j 5.2
2.6 + j 5.4
3.2 + j 6.3
4.1 + j 6.0
4.7 + j 5.6
ZCL (Ω)
4.0 − j 1.3
3.9 − j 2.3
3.6 − j 2.6
3.4 − j 2.4
3.0 − j 3.0
TEST CIRCUIT
C1,C2 : 220 pF Chip Capacitor ATC Size B
C3 : 10 Microfarad Electrolytic Capacitor
C4,C5 : 220 pF Chip Capacitor ATC Size B
C6,C7 : 1 - 4 pF Johanson Variable Capacitor
D1,D2 : 1N3064 Diode or Equiv
L1,L2 : 5 Turn 1/4” Dia. 16 AWG Coil
Q1 : SD1438-02 or Equiv.
R1 : 5KΩ Potentiometer
R2 : 100Ω 1/4 Watt Resistor
Er =10.2 H =.025in.
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