SD4590 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

SD4590

RF POWER TRANSISTORS 800-960 MHz CELLULAR BASE STATION

STMicroelectronics 

TEST CIRCUIT SCHEMATIC

SD4590

TEST CIRCUIT COMPONENT PART LIST

PCB

ε ROGERS, r = 2.55, Height = 31.25 mil 1 oz. Cu.

Balun 1,2

50 Ω Coaxial Cable Lenght 2.2” attached to 2 x 50 Ω printed microstrip

transmission lines (see photomaster)

C1, C2, C23, C25 75pF Ceramic Chip ATC B

C3, C4, C21, C22 2 x 47pF Ceramic Chip, ATC B

C5, C16

0.8 - 8pF Variable, JOHANSON Giga - Trim

C6, C9

750pF Ceramic Chip, ATC B

C7, C10

39nF Ceramic Chip, ATCB

C8, C11, C24, C26 47µF, 50V Electrolytic

C13, C17

100µF, 50V Electrolytic

C12

9.1pF, Ceramic Chip, ATC A

C14, C18

39nF Ceramic Chip (OPTIONAL)

C15, C19

750pF Ceramic Chip (OPTIONAL)

C20

1.3pF Ceramic Chip, ATC B

L1, L4, L5, L8

12 Turns, #200 AWG, 0.15” I.D. (Tight)

L2, L3, L6, L7

4 Turns, #20AWG, 0.13” I.D. (1:1)

R1, R2, R3, R4 5 X 50 Ω Chip Resistor

5/8

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