RF2642PCBA41X Ver la hoja de datos (PDF) - RF Micro Devices

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RF2642PCBA41X

3V 900MHz UPCONVERTER/ DRIVER AMPLIFIER WITH BYPASS MODE

RF Micro Devices 

RF2642

Application Schematic

NOTE:

1. 1 nF: DC blocking capacitor - this can be removed if the filter is DC blocked.

2. T-attenuator - this is to control the overall gain of the upconverter + PA driver. This can be set to zero if it is desired.

VCC

10 nF

LO IN

Gain Select

1 nF

PA OUT

VPA2

3.9 nH

1 nF

8.2 nH

10 nF

Formed by stripline

RF GND2

Variable2

10 nF

1 nF

1

16 15 14 13

Logic

2

Control

12

3

11

IF+

1 nF

4

10

5

67

8

9

IF-

1 nF

2642400B

Formed by stripline

RF GND1

Variable1

VPA1

8.2 nH

10 nF

10 nF

PD

1 nF

See Note 1

5.1 Ω

RF SAW

Filter

820 Ω 820 Ω

1 nF

See Note 1

See Note 2

Rev A8 060925

6-53

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