NXP Semiconductors
UM10380
BGU7005 GPS LNA EVB
1. Introduction
NXP Semiconductors’ BGU7005 is a low-noise amplifier for GPS receiver applications in
a plastic, leadless 6 pin, extremely thin small outline SOT886 package. It has a gain of
16.5 dB gain and a noise figure of 0.8 dB, It has superior linearity performance to
suppress interference and noise from co-habitation cellular transmitters while retaining
sensitivity.
The LNA has been designed using NXP Semiconductors’ advanced 110 GHz f
T
SiGe:C
process. The BGU7005 only requires two external components, one series inductor for
input matching and one decoupling capacitor. The BGU7005 contains one RF stage and
internal bias that is temperature stabilized. It is also supplied with an enable function
allowing it to be controlled by a logic signal.
The BGU7005 is ideal for use as GPS LNA in handsets, PDA’s and PND’s.
The GPS LNA evaluation board (EVB) see
Fig 1. is designed to evaluate the
performance of the BGU7005 applied as a GPS LNA. In this document, the application
diagram, board layout, bill of materials, and typical results are given, as well as some
explanations on
GPS related performance parameters like out-of-band input third-order intercept point,
gain compression under jamming and noise under jamming.
Fig 1. BGU7005 GPS LNA evaluation board
UM10380_1 © NXP B.V. 2009. All rights reserved.
User manual Rev. 01 — 3 November 2009 3 of 14
