ALM-2506 Datasheet, PDF (1/9 Pages) AVAGO TECHNOLOGIES LIMITED – Low component count

ALM-2506
GPS Low Noise Amplifier Variable Current/Shutdown Function
Data Sheet
Description
Avago Technologies’s ALM-2506 is a LNA designed
for GPS/ISM/Wimax applications in the (0.9-2.4)GHz
frequency range. The LNA uses Avago Technologies’s
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-2506 LNA is useable down to 1V 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 identification:
“B” = Product Code
“Y” = Year
“WW” = Work Week
Top View
Pin Configuration
Pin 6
Pin 5
GND
Pin 4
Bottom View
Pin 1
Pin 2
Pin 3
LNA I/O’s :
1. NC
2. RF_IN
3. NC
4. VSD
5. RF_OUT
6. VDD
Features
 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: 1V to 3.6V
 Shutdown current: < 0.1uA
 CMOS compatible shutdown pin (VSD) current @ 2.85V:
90uA
 Adjustable bias current via one single external resistor/
voltage
 Small Footprint: 2x2mm²
 Low Profile: 1.1mm typ
 Lead free and Halogen free
 Ext matching for non-GPS freq band operation
Specifications (25 deg):
At 1.575GHz, 2.85V 8mA (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 Schmatic
VSD
VDD
BIAS
RF_IN
C
C1 Amplifier2
AMP1
RF_OUT
C
C2