RF2374 datasheet(5/15 Pages) RFMD

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RF2374

DS140519

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Package Drawing

Function

Description

Interface Schematic

1RF IN

RF input pin. This part is designed such that 50

Ω is the optimal source

impedance for best noise figure. Best noise figure is achieved with only a

series capacitor on the input.

2GND1

Ground connection. For best performance, keep traces physically short

and connect immediately to ground plane.

3VREF

For low noise amplifier applications, this pin is used to control the bias cur-

rent. An external resistor can be used to set the bias current for any VBIAS

voltage. This device will have good gain and noise figure with ICC as low as

3mA.

4GAIN SELECT This pin selects high gain and bypass modes.

Gain Select<0.8V, high gain.

Gain Select>1.6V, low gain.

5GND2

See GND1.

6RF OUT

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

to VCC through a choke or matching inductor.

7NC

Not connected.

8NC

Not connected.

Pkg

Gnd

GND

This pad should be connected to the ground plane by vias directly under

the device.

RF IN

RF OUT

To Bias

Circuit

VREF

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