PTB20190 datasheet(3/4 Pages) ERICSSON

Part #	PTB20190

Description	175 Watts, 470-806 MHz Digital Television Power Transistor

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Manufacturer	ERICSSON [Ericsson]

Direct Link	http://www.ericsson.com

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PTB 20190

3

e

IMD vs. Frequency

-50

-45

-40

-35

-30

470

525

580

635

690

745

800

Frequency (MHz)

Pout = 125 W(PEP)

VCC = 28 V

Typical Characteristics

Test Circuit

Block Diagram for f = 800 MHz

Q1

PTB 20190

NPN RF Transistor

l1, l2

.0280

λ 800 MHz

Microstrip 18.5

Ω

l5, l6

.0522

λ 800 MHz

Microstrip 18.5

Ω

l3, l4

.0654

λ 800 MHz

Microstrip 70

Ω

l7, l8

.0632

λ 800 MHz

Microstrip 10.2

Ω

l9, l10

.0652

λ 800 MHz

Microstrip 8

Ω

l11, l12

.0652

λ 800 MHz

Microstrip 9

Ω

l13, l14

.0300

λ 800 MHz

Microstrip 11.5

Ω

l15, l16

.0250

λ 800 MHz

Microstrip 60

Ω

l17, l18

.0454

λ 800 MHz

Microstrip 18.5

Ω

T1, T2

UT85-25

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

5/11/98

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PTB20190 Datasheet(PDF) 3 Page - Ericsson

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