SD4600 查看數據表（PDF） - STMicroelectronics

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SD4600

RF & MICROWAVE TRANSISTORS CELLULAR BASE STATION APPLICATIONS

STMicroelectronics 

IMPEDANCE DATA

TYPICAL INPUT

IMPEDANCE

ZIN

TYPICAL COLLECTOR

LOAD IMPEDANCE

ZCL

FREQ.

860 MHz

900 MHz

960 MHz

ZIN (Ω)

17 + j 10

14 + j 10

12.5 + j 8

ZCL (Ω)

11 + j 12

10 + j 10.5

8.5 + j 8.5

TEST CIRCUIT

SD4600

ZCL

L

H

H

L

ZIN

POUT = 60W

VCC = 26V

Normalized to 50ohms

C1,C10 : 120pF Chip Capacitor B Size

C2,C5

C11,C14: 470pF Chip Capacitor B Size

C6,C7 : 100µF Electrolytic Capacitor

C8 : 4.7µF Electrolytic Capacitor

C9 : 10µF Electrolytic Capacitor

C15 : 39,000pF Chip Capacitor

C16 : 63µF Capacitor

C17 : .6 - 4.5pF Johanson Variable Capacitor

C18 : .8 - 8.0pF Johanson Variable Capacitor

R1, R2 : 20Ω (.5W) Chip Resistor

R3 : 10K Potentiometer

R4 : 4 3.17KΩ (.25W) Chip Resistor

S1 : Teflon Glass Er = 2.33 H = .020

3/4

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