RF2472PCBA-410 데이터 시트보기 (PDF) - RF Micro Devices

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RF2472PCBA-410

2.4GHz low noise amplifier with enable

RF Micro Devices 

RF2472

Pin Function Description

Interface Schematic

1

VCC

Supply connection. An external bypass capacitor may be required in some See pin 3.

applications.

2

GND

Ground connection. Keep traces physically short and connect immediately

to ground plane for best performance.

3

RF IN

RF input pin. This pin is DC coupled and matched to 50Ω at 2.4GHz.

VCC

PD

BIAS

RF IN

RF OUT

4

PD

Power down pin.This pin enables the bias to the amplifier. To turn the

amplifier on, this pin should be connected to VCC. Connecting this pin to

ground, will turn the amplifier off and reduce the current draw to below

1μA. This pin is a CMOS input. There is no DC current draw other than the

transient current required to charge or discharge the gate capacitance

(less than 5pF).

5

RF OUT

LNA Output pin.This pin is an open-collector output. It must be biased to See pin 3.

VCC through a choke or matching inductor. This pin is typically matched to

50Ω with a shunt bias/matching inductor and series blocking/matching

capacitor. Refer to application schematics.

Package Drawing

1.60

0.15

+ 0.01

0.05

0.400

1

2.90

+ 0.10 0.950

3° MAX

0° MIN

2.80

+ 0.20

0.127

1.44

1.04

Dimensions in mm.

0.45

+ 0.10

Rev A11 DS080128

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

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

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