RF2365PCBA datasheet(3/8 Pages) RFMD

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4-217

RF2365

Rev A4 001201

Function

Description

Interface Schematic

1RF IN

RF input pin. This pin is DC coupled.

2GND1

Ground connection. See evaluation board schematic notes.

3PD

Power down pin. This pin serves as the interstage for the 2-stage LNA.

An inductor is required to pull pin 3 to VCC (see application schematic).

If desired, this voltage can be lowered to trade off IP3 versus ICC,TOTAL.

(See table below.)

4GND2

Ground connection. See evaluation board schematic notes.

5RF OUT

Amplifier Output pin. This pin is an open-collector output. It must be

biased to either VCC or pin 4 through a choke or matching inductor.

This pin is typically matched to 50

Ω with a shunt bias/matching induc-

tor and series blocking/matching capacitor. Refer to application sche-

matics.

IIP3

ICC

Ω

+4.0dBm

8.0mA

Ω

+2.0dBm

6.5mA

150

Ω

-3.5dBm

5.0mA

GND1

RF IN

To Bias

Circuit

To RF

Stages

To Bias

Circuit

GND2

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