This document is the exclusive property of GlobalTop Tech Inc. and should not be distributed, reproduced, into any other
prior permission of GlobalTop Tech Inc
Copyright © 201
GPS Module Application Notes
GlobalTop Technology
2. General Rules for Design
In order to obtain good GPS performances, there are some rules which require
GPS module.
2.1 Circuit Design
Compatible Model:
Gmm-r1,
2.1.1 Power supply VCC
It is necessary to provide a clean and stable power supply for our GPS module in order to obtain
good performances. Unstable power source will have a significant negative impact on the GPS
performance. To achieve this, the Vcc ripple must be controlled under 50
also some important suggestions for main power circuit design:
(1). Add ferrite bead, power choke or low pass filter for power noise reduction
(2). linear regulator is better than
(3). Use enough decoupling capacitors
his document is the exclusive property of GlobalTop Tech Inc. and should not be distributed, reproduced, into any other
prior permission of GlobalTop Tech Inc. Specifications subject to change without prior notice.
2014 GlobalTop Technology Inc. All Rights Reserved.
Module Application Notes (MT3337 series)
2. General Rules for Design-in
In order to obtain good GPS performances, there are some rules which require attentions for using
, PA6C-R
necessary to provide a clean and stable power supply for our GPS module in order to obtain
Unstable power source will have a significant negative impact on the GPS
. To achieve this, the Vcc ripple must be controlled under 50mV
pp
.
In addition, there are
also some important suggestions for main power circuit design:
Add ferrite bead, power choke or low pass filter for power noise reduction
is better than switch DC/DC power supplier in ripple
capacitors beside VCC for stable voltage.
Power design for GPS module
7
his document is the exclusive property of GlobalTop Tech Inc. and should not be distributed, reproduced, into any other format without
Specifications subject to change without prior notice.
GlobalTop Technology Inc. All Rights Reserved.
Ver. A00
attentions for using
necessary to provide a clean and stable power supply for our GPS module in order to obtain
Unstable power source will have a significant negative impact on the GPS
In addition, there are
