RF2376PCBA datasheet(3/8 Pages) RFMD

3 / 8 page

Preliminary

4-45

RF2376

Rev A2 010829

Application Schematic

Function

Description

Interface Schematic

1RF OUT

RF output pin. This pin is DC coupled and requires VCC through a bias

inductor sized accordingly to provide a high pass transformation with a

series capacitor.

2GND

Ground connection. Keep traces physically short and connect immedi-

ately to ground plane for best performance.

3GC

Analog gain control pin. This pin controls the gain of the IC. Minimum

gain occurs at VGC<0.4V and maximum gain is achieved with

VGC=2.0V. 50dB of linear gain control with little variation of input P1dB

is available.

4RF IN

RF input pin. This pin is AC coupled.

5GND

Ground connection. Keep traces physically short and connect immedi-

ately to ground plane for best performance.

6VCC

Power supply. This pin should be connected to a regulated supply and

requires a bypass capacitor. Voltage is supplied through this pin to the

first stage collector; this voltage also controls the bias. Gain may be

tuned by adjusting the value of the feed inductor.

RF IN

ATTEN

Note orientation of

package in this schematic.

2.7 pF

4.7 nH

47 nF

VCC

RF OUT

12 nH

47 nH

VCC

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