RF2321 Ver la hoja de datos (PDF) - RF Micro Devices

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RF2321

3V GENERAL PURPOSE AMPLIFIER

RF Micro Devices 

Preliminary

RF2321

Pin Function Description

Interface Schematic

1

GND

Ground connection. Keep traces physically short and connect immedi-

ately to ground plane for best performance.

2

GND

Same as pin 1.

3

RF IN

RF input pin. This pin is not internally DC blocked and thus requires an

external blocking capacitor suitable for the frequency of operation. The

input impedance of this pin is internally matched to 50Ω using resistive

feedback.

VCC

RF OUT

RF IN

4

4

VCC

Supply connection. This pin should be bypassed with a suitable capac-

itor(s).

5

RF OUT RF output and bias pin. The output impedance of this pin is internally See pin 3 schematic.

matched to 50Ω using resistive feedback. Because DC biasing is

present on this pin, a DC blocking capacitor should be used in most

applications (see application schematic).

 

1

2

100 pF

RF IN

3

5

RF OUT

100 pF

VCC

4

1 nF

  

(Download Bill of Materials from www.rfmd.com.)

P1

P1-1 1 VCC

2 GND

NC

3

1

C1

2

RF IN

50 Ω µstrip

100 pF

J1

3

50 Ω µstrip

5

C2

100 pF

4

C3

1 nF

RF OUT

J2

P1-1

Rev A3 000713

4-93

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