MGA-43040 데이터 시트보기 (PDF) - Avago Technologies

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MGA-43040

High Linearity (2.3 – 2.4) GHz Power Amplifier Module

Avago Technologies 

Application Schematic

Vdd1

Vdd2

Vdd3

Idq1

Idq2

Idq3

C3

C4

Z=50 Ω

E=8.3 deg

F=2.35 GHz

C7

Z=50 Ω

E=7.0 deg

F=2.35 GHz

C10

C8

Z=50 Ω

C13

E=8.3 deg

F=2.35 GHz

1

RFin

C1

Z=50 Ω

F=2.35 GHz

Top View

C2 RFout

Z=50 Ω

F=2.35 GHz

C18 C20 C22

C24

I_Vddbias

C25

C26

Vc1 Vc2 Vc3 Vddbias Vdet

Figure 6. Application circuit in demonstration board

Notes

1. All capacitors on supply lines are bypass capacitors.

2. C1/C2 are RF coupling capacitors.

3. Idq1= 60 mA, Idq2 = 110 mA, Idq3 = 180.0 mA, I_Vddbias = 16.0 mA at Vdd1,2,3=VddBias=5.0 V. Idq1/2/3 are adjusted by voltages to CMOS-

compatible control pins Vc1/2/3, respectively. These typical bias currents were obtained with Vc1/2/3 voltages in Figure 2. Adjustment of these

currents enable optimum bias conditions to be achieved for best linearity and efficiency for a given modulation type.

3

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