ALM-2712
ALM-2712 is GPS Filter-LNA-Filter Front-End Module manufactured by Avago Technologies.
Description
Avago Technologies’ ALM-2712 is an ultra low-noise GPS front-end module that bines a low-noise amplifier (LNA) with GPS FBAR filters. The LNA uses Avago Technologies’ proprietary Ga As Enhancement-mode p HEMT process to achieve high gain with very low noise figure and high linearity. Noise figure distribution is very tightly controlled. A CMOS-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 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 current consumption make it suitable for use in critical lowpower GPS applications or during low-battery situations. ponent 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 d B typ.
- Exceptional Cell/DCS/PCS/WLAN-Band rejection
- Advanced Ga As E-p HEMT & FBAR Technology
- Low external ponent count.
- CMOS patible shutdown pin (SD)
- ESD: > 3k V 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 = 7.5m A
- Gain = 14.2 d B
- NF = 1.26 d B
- IIP3 = +5 d Bm, IP1d B = +2 d Bm
- S11 = -9 d B, S22 =-12 d B
- Low-Band Rejection (824
- 928MHz): 89 d Bc
- High-Band Rejection (1710
- 1980MHz): 80 d Bc
- WLAN-Band Rejection (2400
- 2500MHz): 72 d Bc
Application
- GPS Front-end Module
Application Circuit
Vdd = +2.7V
Vdd (pin...
