ALM-GN001 Datasheet, PDF (1/21 Pages) AVAGO TECHNOLOGIES LIMITED – GNSS Filter-LNA Front-End Module

ALM-GN001
GNSS Filter-LNA Front-End Module
Data Sheet
Description
Avago Technologies’ ALM-GN001 is an ultra low-noise
GNSS front-end module that combines a low-noise
amplifier (LNA) with a GNSS FBAR pre-LNA filter. 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 Cellular, DCS, PCS and WLAN band frequen-
cies. 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
low-power GNSS applications or during low-battery
situations.
Component Image
Surface Mount (2.3 × 1.7 × 0.85) mm³ 6-lead DFN
V_dd (pin 1)
V_sd (pin 2)
RFin (pin 3)
GN001
YMXXXX
RFOut (pin 6)
LNA_In (pin 5)
Filter_Out (pin 4)
TOP VIEW
RFOut (pin 6)
LNA_In (pin 5)
Filter_Out (pin 4)
Gnd
(pin 7)
BOTTOM VIEW
V_dd (pin 1)
V_sd (pin 2)
RFin (pin 3)
Package marking provides orientation and identification:
“GN001“ = Product Code
“Y” = Year of manufacture
“M” = Month of manufacture
“XXXX”= Last 4 digits of lot number
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 70 V
ESD Human Body Model = 300 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.
Features
• Operating Temperature Range -40 °C to +85 °C
• Very Low Noise Figure: 1.54 dB typ.
• Exceptional Cell/DCS/PCS/WLAN-Band rejection
• Advanced GaAs E-pHEMT & FBAR Technology
• Shutdown current : < 1 mA
• CMOS compatible shutdown pin (V_sd)
• ESD : > 1 kV at RFin pin
• 0.85 mm typical thickness
• Adjustable bias current via single control voltage pin
• Small package dimension: (2.3 × 1.7 × 0.85) mm³
• Meets MSL3, Lead-free and halogen free
Target Specifications (Typical performance @ 25 °C)
At 1.575 GHz, V_dd = 2.7 V, I_dd = 6 mA
• Gain = 16 dB
• NF = 1.54 dB
• IIP3 = 2.5 dBm, IP1dB = -4 dBm
• S11 = -8 dB, S22 =-13 dB
• Rejection @ 824 – 849 MHz: 58 dBc
• Rejection @ 880 – 924 MHz: 56 dBc
• Rejection @ 1710 – 1785 MHz: 47 dBc
• Rejection @ 1850 – 1910 MHz: 51 dBc
• Rejection @ 2400 – 2570 MHz: 51 dBc
Application
• GNSS Front-end Module
Application Circuit
+Vdd = 2.7 V ^L2 1
C₁
C₃
2
Vsd
3
RFin
L₄
ALM-GN001
6
RFout
5
LNA_In
L₃
4
Filter_Out