RF2371PCBA datasheet(3/8 Pages) RFMD

3 / 8 page

Preliminary

4-223

RF2371

Rev A2 010205

Function

Description

Interface Schematic

1RF IN

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

external blocking capacitor.

2GND1

Ground connection for the LNA. Keep traces physically short and con-

nect immediately to ground plane for best performance.

3GND2

Ground connection for the bias circuits.

IPSET

This pin selects the internal current setting when CMOS level “low”, and

the external current setting when this pin is CMOS level “high”.

ENABLE

Power down control. This is a CMOS input. When this pin is CMOS

“high” the device is enabled. When the level is CMOS “low” the device

is shut off and a controlled attenuator is turned on.

6VCC

Power supply for the bias circuits.

ISET

This pin sets the current for the device.

8RF OUT

RF output pin. Bias for the LNA is provided through this pin, hence it

should be connected to VCC through an inductor.

RF2371PCBA 数据表(PDF) 3 Page - RF Micro Devices