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ALM-GA002 Datasheet, PDF (1/9 Pages) AVAGO TECHNOLOGIES LIMITED – GPS Low Noise Amplifier Variable Current/Shutdown Function | |||
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ALM-GA002
GPS Low Noise Amplifier Variable Current/Shutdown Function
Data Sheet
Description
Avago Technologiesâs ALM-GA002 is a LNA designed
for GPS/ISM/Wimax applications in the (0.9-2.4)GHz
frequency range. The LNA uses Avago Technologiesâs
proprietary GaAs Enhancement-mode pHEMT process to
achieve high gain operation with very low noise figures
and high linearity. Noise figure distribution is very tightly
controlled. Gain and supply current are guaranteed pa-
rameters. A CMOS compatible shutdown pin is included
to turn the LNA off and provide a variable bias.
The ALM-GA002 LNA is usable down to 1 V operation.
It achieves low noise figures and high gain even at 1V,
making it suitable for use in critical low power GPS/ISM
band applications.
Package Marking and Orientation
O
BY
WW
Note: Package marking
provides Orientation
and identiï¬cation:
âBâ = Product Code
âYâ = Year
âWWâ = Work Week
Top View
Pin Configuration
Pin 6
Pin 5
GND
Pin 4
Bottom View
Pin 1
Pin 2
Pin 3
LNA I/Oâs :
1. NC
2. RF_IN
3. NC
4. VSD
5. RF_OUT
6. VDD
Features
⢠Operating temperature range -40 to +85 °C
⢠Surface Mount 2.0 x 2.0 x 1.1 mm3 MCOB
⢠Advanced GaAs E-pHEMT
⢠Low Noise: 0.8 dB typ
⢠High Gain: 14.3 dB typ
⢠Low component count
⢠High IIP3 and IP1dB
⢠Wide Supply Voltage: 1 V to 3.6 V
⢠Shutdown current: < 0.1 µA
⢠CMOS compatible shutdown pin (VSD) current @ 2.85
V: 90 µA
⢠Adjustable bias current via one single external resistor/
voltage
⢠Small Footprint: 2x2 mm2
⢠Low Profile: 1.1 mm typ.
⢠Lead-free and Halogen-free
⢠Ext matching for non-GPS freq band operation
Specifications (25 deg):
At 1.575GHz, 2.85 V 8 mA (Typ)
⢠Gain = 14.3 dB (Typ)
⢠NF = 0.8 dB (Typ)
⢠IIP3 = 4.7 dBm (Typ)
⢠IP1dB = 1.8 dBm (Typ)
⢠S11 = -11.8 dB (Typ)
⢠S22 = -12.4 dB (Typ)
Note: Measurements obtained using demoboard described in Figure 4.
Simplified Schematic
VSD
VDD
BIAS
RF_IN
C
C1 Ampliï¬er2
AMP1
RF_OUT
C
C2
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