ALM-1412 Datasheet, PDF (1/16 Pages) AVAGO TECHNOLOGIES LIMITED – GPS LNA-Filter Front-End Module

ALM-1412
GPS LNA-Filter Front-End Module
Data Sheet
Description
Avago Technologies’ ALM-1412 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-compatible 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-1412 is useable down to 1 V operation. It
achieves low noise figure, high gain and linearity even at
1 V, making it suitable for use in critical low-power GPS
applications or during low-battery situations.
Application
• GPS Band LNA
Component Image
SURFACE MOUNT 3.3 x 2.1 x 1.1 mm³ 12-Lead MCOB
RF_IN 1
Gnd 2
SD 3
1412
WWYY
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
“1412” = Product Code
“YY” = Year of manufacture
“WW” = Work Week of manufacture
Features
• Very Low Noise Figure: 0.82 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: 1 V to 3.6 V
• Shutdown current: < 0.1 μA
• CMOS compatible shutdown pin (SD) current @ 2.8 V:
0.1 mA
• Adjustable current via single external
resistor/voltage
• Meets MSL3 and Lead-Free
• ESD-protected RF input: 3 kV HBM
• Small package dimension: 3.3(L)x2.1(W)x1.1(H) mm³
Specifications (Typical Performance at 25°C)
At 1.575 GHz, Vdd = 2.85 V, Idd = 8.0 mA
• Gain = 13.5 dB
• NF = 0.82 dB
• IIP3 = +7.0 dBm, IP1dB = +2.7 dBm
• S11 = -8.4 dB, S22 = -12.3 dB
• Cell-Band Rejection: 54 dBc
• PCS-Band Rejection: 63 dBc
At 1.575 GHz, 1.0 V supply
• S21 = 8.8 dB
• NF = 1.22 dB
• Idd = 1.9 mA
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 Technologies Application Note A004R:
Electrostatic Discharge, Damage and Control