STM901-30 Ver la hoja de datos (PDF) - STMicroelectronics

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STM901-30

RF POWER MODULE LINEAR BASE STATION APPLICATIONS

STMicroelectronics 

STM901-30

MODULE DC AND TEST FIXTURE CONFIGURATION

C1, C3, C5, C7, C11, C13, C 17 : 100 pF

C2, C4, C6, C8, C12, C14, C 18 : .001 µF

C19 : .1 µF

C20, C22 : 100 µF

F1, F2, F3 : FAIR-RITE #2664000101

L1, L2, L3 : 5 Turns of 24 AWG Wi re, Inner Diameter

1.27mm

R1, R2, R3, R4 : 20 KOHM

Setting Bias: (Ex.: IQ1 = .1A, IQ2 = .18A, IQ3 = .050A, IQ4 = .150A)

1. Set all variable resistors clockwise. (No bias current flows through

transistors when all variable resistors are set clockwise.)

2. Record stationary current IO.

3. Adjust R1 for (IO + 100)mA.

4. Adjust R2 for (IO + 100 + 180)mA.

5. Adjust R3 for (IO + 100 + 180 + 50)mA.

6. Adjust R4 for (IO + 100 + 180 + 50 + 150)mA.

6/8

October 31, 1997

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