UM10459
User manual for the BGU7007 GPS LNA evaluation board
Rev. 1 — 11 March 2011
User manual
Document information
Info
Content
Keywords
Abstract
LNA, GPS, BGU7007
This document explains the BGU7007 GPS low noise amplifier evaluation
board
NXP Semiconductors
UM10459
User manual for the BGU7007 GPS LNA evaluation board
Revision history
Rev
Date
v.1
20110311
Description
First release
Contact information
For more information, please visit:
http://www.nxp.com
For sales office addresses, please send an email to:
salesaddresses@nxp.com
UM10459
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
User manual
Rev. 1 — 11 March 2011
2 of 16
NXP Semiconductors
UM10459
User manual for the BGU7007 GPS LNA evaluation board
1. Introduction
NXP Semiconductors’ BGU7007 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
18.5 dB and a noise figure of 0.9 dB (incl. board losses) or 0.85 dB (board losses
subtracted). 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 BGU7007 only requires two external components, one series inductor for
input matching and one decoupling capacitor. The BGU7007 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 BGU7007 is ideal for use as GPS LNA in smart phones, feature phones and
Portable Navigation Devices.
The GPS LNA evaluation board (EVB), see
Fig 1,
is designed to evaluate the
performance of the BGU7007 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.
019aab870
Fig 1.
BGU7007 GPS LNA evaluation board
UM10459
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
User manual
Rev. 1 — 11 March 2011
3 of 16
NXP Semiconductors
UM10459
User manual for the BGU7007 GPS LNA evaluation board
2. General description
NXP Semiconductors’ BGU7007 GPS low noise amplifier is dedicated for the GNSS
frequency band (GPS, GLONASS and Galileo positioning systems). The integrated
biasing circuit is temperature stabilized, which maintains a constant current over
temperature. It also enables the superior linearity performance of the BGU7007. It is also
supplied with an enable function that allows it to be controlled with a logic signal. In
disabled mode it consumes less than
μA.
The output of the BGU7007 is internally matched for 1575.42 MHz whereas only one
series inductor at the input is needed to achieve the best RF performance. Both the input
and output are AC coupled via an integrated capacitor.
Only two external components are required to build a GPS LNA with the following
advantages:
•
Low noise
•
High gain
•
High linearity under jamming
•
Very low package height 0.5 mm
•
Low current consumption
•
Short power settling time
The data sheet of the BGU7007 is available, and it is called
“SiGe:C Low Noise Amplifier
MMIC for GPS applications”
3. Application Board
The BGU7007 GPS LNA evaluation board simplifies the evaluation of the BGU7007 GPS
LNA for the GPS application. The evaluation board enables testing of the device
performance and requires no additional support circuitry. The board is fully assembled
with the BGU7007, including the input series inductor as well as a decoupling capacitor
to optimize the performance. The board is supplied with two SMA connectors for input
and output connection to RF test equipment. The BGU7007 can operate from a 1.5 V to
2.85 V single supply and consumes about 5 mA.
UM10459
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
User manual
Rev. 1 — 11 March 2011
4 of 16
NXP Semiconductors
UM10459
User manual for the BGU7007 GPS LNA evaluation board
3.1 Application circuit
The circuit diagram of the evaluation board is shown in
Fig 2.
With jumper JU1 the enable pin can be controlled to either to V
cc
or GND.
BGU7007
GPS LNA
EVB
X3
GND
X4
JU1
C1
Ven
Vcc
5
RF in
L1
3
4
BGU7007
1
2
6
RF out
X1
X2
019aab871
Fig 2.
Circuit diagram of the BGU7007 evaluation board
3.2 Board layout
019aab872
Fig 3.
Printed circuit board lay-out of the BGU7007 GPS LNA evaluation board
UM10459
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
User manual
Rev. 1 — 11 March 2011
5 of 16
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
