ALM-2412 Datasheet, PDF (1/13 Pages) AVAGO TECHNOLOGIES LIMITED – GPS LNA-Filter Front-End Module

ALM-2412
GPS LNA-Filter Front-End Module
Data Sheet
Description
Avago Technologies’ ALM-2412 is an LNA module, with
integrated filter, designed for GPS band applications at
1.575GHz. The LNA uses Avago Technologies’ proprietary
GaAs Enhancement-mode pHEMT process to achieve high
gain with very low noise figure and high linearity. Noise
figure distribution is very tightly controlled. A CMOS-com-
patible shutdown pin is included either for turning the
LNA on/off, or for current adjustment. The integrated filter
utilizes an Avago Technologies’ leading-edge FBAR filter
for exceptional rejection at Cell/PCS-Band frequencies.
The ALM-2412 is useable down to 1V operation. It achieves
low noise figure, high gain and linearity even at 1V, making
it suitable for use in critical low-power GPS applications or
during low-battery situations.
Component Image
Surface Mount 3.3x2.1x1.1 mm³ 12-lead MCOB
RF_IN 1
Gnd 2
SD 3
2412
XXXXX
9 Gnd
8 FILTER-OUT
7 Gnd
TOP VIEW
Gnd 9
FILTER-OUT 8
Gnd 7
1 RF_IN
2 Gnd
3 SD
BOTTOM VIEW
Note:
Package marking provides orientation and identification
“2412”
= Product Code
First “X”
= Year of manufacture
Second “X”
= Work week of manufacture
Third “X”
= Datecode
Fourth & Fifth “X” = Lot Number
Features
 Very Low Noise Figure : 0.85 dB typical
 High Gain : 13.5 dB typical
 High IIP3 and IP1dB
 Exceptional Cell/PCS-Band rejection
 Advanced GaAs E-pHEMT Technology
 Low external component count
 Wide Supply Voltage : 1V to 3.6V
 Shutdown current : < 0.1uA
 CMOS compatible shutdown pin (SD) current @ 2.8V :
0.1mA
 Adjustable current via single external resistor/voltage
 Meets MSL3, Lead-Free and Halogen-Free
 ESD-protected RF input: 3kV HBM
 Small package dimension: 3.3(L)x2.1(W)x1.1(H) mm³
Specifications (Typical performance at 25°C)
At 1.575GHz, Vdd = 2.85V, Idd = 9.0mA
 Gain = 13.5 dB
 NF = 0.85 dB
 IIP3 = +6.1 dBm, IP1dB = +2.2 dBm
 S11 = -8.4 dB, S22 =-9.0 dB
 Cell-Band Rejection: 53dBc
 PCS-Band Rejection: 65dBc
At 1.575GHz, 1.0V supply
 S21 = 7.2dB
 NF = 1.63dB
 Idd = 1.5mA
Application
 GPS Band LNA
Attention: Observe precautions for
handling electrostatic sensitive devices.
For RF_IN (Pin 1): ESD Human Body Model = 3 kV
All other pins: ESD Machine Model = 40 V
ESD Human Body Model = 300 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.