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ALM-2412 Datasheet Preview

ALM-2412 Datasheet

GPS LNA-Filter Front-End Module

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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.




AVAGO

ALM-2412 Datasheet Preview

ALM-2412 Datasheet

GPS LNA-Filter Front-End Module

No Preview Available !

Absolute Maximum Rating[1] TA=25°C
Symbol
Vdd
Idd
Pin,max
Pdiss
Tj
TSTG
T
Parameter
Device Drain to Source Voltage[2]
Drain Current [2]
CW RF Input Power
(Vdd = 2.85V, Idd=9.0mA)
Total Power Dissipation [4]
Junction Temperature
Storage Temperature
Recommended Operating Temperature
Units
V
mA
dBm
mW
°C
°C
°C
Absolute Max.
3.6
20
15
72
150
-65 to 150
-40 to 85
Thermal Resistance
Thermal Resistance[3]
(Vdd = 2.85 V, Idd = 9.0 mA), jc = 352.2°C/W
Notes:
1. Operation of this device in excess of any of
these limits may cause permanent damage.
2. Assuming DC quiescent conditions
3. Thermal resistance measured using Infra-Red
measurement technique.
4. Board (module belly) temperature TB is 25°C.
Derate 2.84 mW/°C for TB>125°C.
Electrical Specifications
TA = 25°C, Vdd = +2.85V, Vsd = +2.6V, Idd = 9.0mA (typ), R2 = 10 k, Freq = 1.575GHz – Typical Performance [8] unless
otherwise specified.
Table 1. Performance table at nominal operating conditions
Symbol
Parameter and Test Condition
Units Min.
Typ
Max.
G
NF[7]
Gain
Noise Figure
dB 11 13.5 -
dB -
0.85 1.20
IP1dB
IIP3[9]
Input 1dB Compressed Power
Input 3rd Order Intercept Point (2-tone @ Fc +/- 2.5MHz)
dBm
dBm
-
-
2.2 -
6.1 -
S11 Input Return Loss
dB -
-8.4 -
S22 Output Return Loss
dB -
-9.0 -
S12 Reverse Isolation
dB -
-21.6 -
Cell Band Rejection
Relative to 1.575GHz @ 827.5MHz
dBc 45 53 -
PCS Band Rejection Relative to 1.575GHz @ 1885MHz
dBc 45 65 -
Idd
Supply DC current at Shutdown (SD) voltage Vsd = 2.6V mA
-
9.0 15.0
Ish Shutdown Current @ VSD = 0V
uA -
0.1 -
TA = 25°C, Vdd = +2.85V, Vsd = +1.8V, Idd = 3.2mA (typ), R2 = 10 k, Freq = 1.575GHz – Typical Performance [8] unless
otherwise specified.
Table 2. Typical performance at Vdd = +2.85V, Vsd = +1.8V, Idd = 3.2mA (typ)
Symbol
Parameter and Test Condition
Units Typ
G
NF[7]
IP1dB
IIP3[9]
S11
S22
S12
Cell Band Rejection
PCS Band Rejection
Idd
Ish
Gain
Noise Figure
Input 1dB Compressed Power
Input 3rd Order Intercept Point (2-tone @ Fc +/- 2.5MHz)
Input Return Loss
Output Return Loss
Reverse Isolation
Relative to 1.575GHz @ 827.5MHz
Relative to 1.575GHz @ 1885MHz
Supply DC current at Shutdown (SD) voltage Vsd = 1.8V
Shutdown Current @ VSD = 0V
dB 11.5
dB 1.1
dBm 4.4
dBm 5.3
dB -6.8
dB -8.6
dB -20.4
dBc 56
dBc 62
mA 3.2
uA 0.1
2


Part Number ALM-2412
Description GPS LNA-Filter Front-End Module
Maker AVAGO
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