DEMO-ALM-2712 Datasheet, PDF (1/19 Pages) Broadcom Corporation. – GPS Filter-LNA-Filter Front-End Module

ALM-2712
GPS Filter-LNA-Filter Front-End Module
Data Sheet
Description
Avago Technologies’ ALM-2712 is an ultra low-noise GPS
front-end module that combines a low-noise amplifier
(LNA) with GPS FBAR filters. The LNA uses Avago Tech-
nologies’ 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 adjust-
ment. The integrated filter utilizes an Avago Technologies’
leading-edge FBAR filter for exceptional rejection at
Cellular, DCS, PCS and WLAN band frequencies. Bypass
functionality with an external RF switch is possible with
separate RF switching.
The low noise figure and high gain, coupled with low cur-
rent consumption make it suitable for use in critical low-
power GPS applications or during low-battery situations.
Component Image
Surface Mount (3.0 x 2.5 x 1) mm³ 12-lead MCOB
Gnd Vsd Gnd
(pin 12) (pin 11) (pin 10)
RF In (pin 1)
Vdd (pin 9)
Gnd (pin 2) 2712
RF Out (pin 8)
Gnd (pin 3)
YMXXXX
Gnd Gnd Gnd
(pin 4) (pin 5) (pin 6)
Gnd (pin 7)
TOP VIEW
Features
 Very Low Noise Figure: 1.26 dB typ.
 Exceptional Cell/DCS/PCS/WLAN-Band rejection
 Advanced GaAs E-pHEMT & FBAR Technology
 Low external component count.
 CMOS compatible shutdown pin (SD)
 ESD: > 3kV at RFin pin
 Adjustable bias current via single external resistor/
voltage
 Useable down to 1.8V supply voltage
 Small package dimension: 3.0(L)x2.5(W)x1(H) mm³
 Meets MSL3, Lead-free and halogen free
Specifications (Typical performance @ 25°C)
At 1.575GHz, Vdd = 2.7V, Idd = 7.5mA
 Gain = 14.2 dB
 NF = 1.26 dB
 IIP3 = +5 dBm, IP1dB = +2 dBm
 S11 = -9 dB, S22 =-12 dB
 Low-Band Rejection (824 – 928MHz): 89 dBc
 High-Band Rejection (1710 – 1980MHz): 80 dBc
 WLAN-Band Rejection (2400 – 2500MHz): 72 dBc
Application
 GPS Front-end Module
Application Circuit
Vdd = +2.7V
Vdd (pin 9)
Gnd Vsd Gnd
(pin 10) (pin 11) (pin 12)
RF In (pin 1)
RF Out (pin 8)
Gnd (pin 2)
Vsd
C1
C2
RFin
RFout
Gnd (pin 7)
Gnd Gnd Gnd
(pin 6) (pin 5) (pin 4)
Gnd (pin 3)
BOTTOM VIEW
Note:
Package marking provides orientation and identification
“2712” = Product Code
“Y” = Year of manufacture
“M” = Month of manufacture
“XXXX” = Last 4 digit of lot number
Attention: Observe precautions for
handling electrostatic sensitive devices.
RF In (Pin 1) to GND: ESD Human Body Model = 3 kV
All other Pins : ESD Machine Model = 50 V
: ESD Human Body Model = 300 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.