General description

The BGU8004 is a Low Noise Amplifier (LNA) for GNSS receiver applications. It comes as extremely small and thin Wafer Level Chip Scale Package (WLCSP). The BGU8004 requires one external matching inductor.

The BGU8004 adapts itself to the changing environment resulting from co-habitation of different radio systems in modern cellular handsets. It has been designed for low power consumption and optimized performance when jamming signals from co-existing cellular transmitters are present. At low jamming power levels it delivers 17 dB gain at a noise figure of 0.60 dB. During high jamming power levels, resulting for example from a cellular transmit burst, it temporarily increases its bias current to improve sensitivity.

Features and benefits

■ Covers full GNSS L1 band, from 1559 MHz to 1610 MHz

■ Noise figure (NF) = 0.60 dB

■ Gain 17.0 dB

■ High input 1 dB compression point of -7.5 dBm

■ High out of band IP3i of 6 dBm

■ Supply voltage 1.5 V to 3.1 V

■ Optimized performance at very low 3.4 mA supply current

■ Power-down mode current consumption < 1 PA

■ Integrated temperature stabilized bias for easy design

■ Requires only one input matching inductor

■ Input and output DC decoupled

■ ESD protection on all pins (HBM > 2 kV)

■ Integrated matching for the output

■ Extremely small Wafer Level Chip Scale Package (WLCSP) 0.65 u 0.44 u 0.2 mm;

6 solder bumps; 0.22 mm bump pitch

■ 180 GHz transit frequency - SiGe:C technology

Applications

■ LNA for GPS, GLONASS, Galileo and Compass (BeiDou) in smart phones, feature

phones, tablet, digital still cameras, digital video cameras, RF front-end modules,

complete GNSS modules and personal health applications.