SD1888-03 Datasheet, PDF (3/4 Pages) STMicroelectronics – RF & MICROWAVE TRANSISTORS 1.6 GHz SATCOM APPLICATIONS

IMPEDANCE DATA
TYPICAL INPUT
IMPEDANCE
Z_IN
TYPICAL COLLECTOR
LOAD IMPEDANCE
ZCL
SD1888-03
FREQ.
1600 MHz
1650 MHz
1700 MHz
ZIN (Ω)
9.0 + j 14.0
11.5 + j 12.0
23.0 + j 8.0
ZCL (Ω)
11.0 + j 2.0
9.0 + j 4.0
8.0 + j 5.5
TEST CIRCUIT
C1 : 1500pF Feedtrhu Capacitor Erie
C2, C3 : 0.4 - 2.5pF Trim Capacitor Johanson Gigatrim
C4 : 100pF ATC Chip Capacitor
L1, L2 : RF Chokes; 3 Turns #22 Wire .100” Diameter
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