PTB20190 Datasheet, PDF (3/4 Pages) Ericsson – 175 Watts, 470-806 MHz Digital Television Power Transistor

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Typical Characteristics
IMD vs. Frequency
-30
-35
-40
Pout = 125 W(PEP)
-45
V_CC = 28 V
-50
470 525 580 635 690 745 800
Frequency (MHz)
Test Circuit
PTB 20190
Block Diagram for f = 800 MHz
Q1
l1, l2
l5, l6
l3, l4
l7, l8
l9, l10
l11, l12
l13, l14
l15, l16
l17, l18
T1, T2
PTB 20190
.0280 λ 800 MHz
.0522 λ 800 MHz
.0654 λ 800 MHz
.0632 λ 800 MHz
.0652 λ 800 MHz
.0652 λ 800 MHz
.0300 λ 800 MHz
.0250 λ 800 MHz
.0454 λ 800 MHz
UT85-25
5/11/98
NPN RF Transistor
Microstrip 18.5 Ω
Microstrip 18.5 Ω
Microstrip 70 Ω
Microstrip 10.2 Ω
Microstrip 8 Ω
Microstrip 9 Ω
Microstrip 11.5 Ω
Microstrip 60 Ω
Microstrip 18.5 Ω
Balun
C1, C2
5.1 pF
C3, C12, C8, C20 10 µF, 35 V SMT Capacitor
C4, C7, C19, C16
0.1 µF
C5, C6, C17, C18, C21, C22
75 pF
C9, C10
0-10 pF
C11
0-20 pF
R1, R2
15 Ω, 1/4 W
FB
4 mm.
SMT Ferrite
L1, L3
12 nh
SMT Inductor
L2, L4
68 nh
SMT Inductor
Circuit Board
.031 G-200, Solid Copper Bottom
3