rf2374 RF Micro Devices, rf2374 Datasheet - Page 4

• Manufacturer Part Number: rf2374
• Description: 3v Low Noise Amplifier Rf2374
• Manufacturer: RF Micro Devices

RF2374
4 of 12
Gnd
Pkg
Pin
1
2
3
4
5
6
7
8
GAIN SELECT
Function
RF OUT
GND1
GND2
RF IN
VREF
GND
NC
NC
Description
RF input pin. This part is designed such that 50Ω is the optimal source
impedance for best noise figure. Best noise figure is achieved with only a
series capacitor on the input.
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
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 V
voltage. This device will have good gain and noise figure with I
3mA.
This pin selects high gain and bypass modes.
Gain Select<0.8V, high gain.
Gain Select>1.6V, low gain.
See GND1.
Amplifier output pin. This pin is an open-collector output. It must be biased
to V
Not connected.
Not connected.
This pad should be connected to the ground plane by vias directly under
the device.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
CC
through a choke or matching inductor.
INDEX
2.20
AREA
Dimensions in mm.
Shaded lead is pin 1.
B
A
Package Drawing
2 PLCS
2.20
1.20
1.00
0.10 C
TYP
0.65
2 PLCS
0.10 C
0.28
0.18
0.10 M
SEATING
0.63
0.53
C A B
PLANE
0.10
MAX
0.31
0.21
0.05
0.00
CC
0.152
REF
C
as low as
BIAS
Interface Schematic
RF IN
To Bias
Circuit
VREF
Rev A3 DS080414
RF OUT