MAX-7 / NEO-7 - Hardware Integration Manual
UBX-13003704
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R09
Production Information
Hardware
description
Page
8 of 52
2
Hardware description
2.1
Overview
u-blox 7 modules are standalone GNSS positioning modules featuring the high performance u-blox 7 positioning
engine. Available in industry standard form factors in leadless chip carrier (LCC) packages, they are easy to
integrate and they combine exceptional positioning performance with highly flexible power, design, and
connectivity options. SMT pads allow fully automated assembly with standard pick & place and reflow-soldering
equipment for cost-efficient, high-volume production enabling short time-to-market.
For product features see the module data sheet.
To determine which u-blox product best meets your needs, see the product selector tables on the u-blox
website (www.u-blox.com).
2.2
Architecture
u-blox 7 modules consist of two functional parts - the RF block and the digital block (see
The RF block includes the input matching elements, the SAW band pass filter, the integrated LNA and the
oscillator, while the digital block contains the u-blox 7 GNSS engine, the RTC crystal and additional elements
such as the optional FLASH Memory for enhanced programmability and flexibility.
Figure 1: u-blox-7 block diagram
2.3
Operating modes
u-blox receivers support different power modes. These modes represent strategies of how to control the
acquisition and tracking engines in order to achieve either the best possible performance or good performance
with reduced power consumption.
2.3.1
Continuous Mode
During a cold start, a receiver in Continuous Mode continuously deploys the acquisition engine to search for all
satellites. Once the receiver can calculate a position and track a sufficient number of satellites, the acquisition
engine powers off, resulting in significant power savings. The tracking engine continuously tracks acquired
satellites and acquires other available or emerging satellites. Whenever the receiver can no longer calculate a
position or the number of satellites tracked is below the sufficient number, the acquisition engine powers on
