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RF2472
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.
Package Drawing
Pin
Function
Description
Interface Schematic
1VCC
Supply connection. An external bypass capacitor may be required in some
applications.
See pin 3.
2GND
Ground connection. Keep traces physically short and connect immediately
to ground plane for best performance.
3RF IN
RF input pin. This pin is DC coupled and matched to 50
Ω at 2.4GHz.
4PD
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
1
μA. 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).
5RF OUT
LNA Output pin.This pin is an open-collector output. It must be biased to
VCC through a choke or matching inductor. This pin is typically matched to
50
Ω with a shunt bias/matching inductor and series blocking/matching
capacitor. Refer to application schematics.
See pin 3.
RF IN
RF OUT
VCC
BIAS
PD
1
1.60
+ 0.01
0.400
2.80
+ 0.20
2.90
+ 0.10
0.45
+ 0.10
3° MAX
0° MIN
0.127
0.15
0.05
1.44
1.04
Dimensions in mm.
0.950
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