Hardware Description; Low Power Operation - Ublox ZOE-M8B Series System Integration Manual

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Hardware description

1.1 Overview
The u-blox ZOE-M8B standard precision GNSS SiP module features the high performance u-blox M8
GNSS engine. The ultra-miniature form factor integrates a complete GNSS receiver solution including
SAW filter, LNA and TCXO.
The ZOE-M8B GNSS SiP is targeted for applications that require a small size without compromising
the performance. It features the new Super-Efficient (Super-E) operation mode, providing a unique
balance between power consumption and performance.
For RF optimization, the ZOE-M8B SiP integrates a front-end SAW filter and an additional front-end
LNA for increased jamming immunity and easier antenna integration. The Super-E mode allows
automatic LNA duty-cycling for reduced power consumption. A passive antenna can be used to
provide a highly integrated system solution with minimal eBOM.
The ZOE-M8B optimizes the overall system power consumption by excluding the need for any heavy
signal processing on the application processor. In the Super-E mode, the system can operate with
absolute minimal current consumption during power-optimized periods. Navigation data can be
stored internally while the application processor is in deep sleep (data batching). Super-E mode, LNA
duty cycling, and intelligent power management are breakthroughs for low-power applications.
The ZOE-M8B GNSS SiP can be easily integrated in manufacturing thanks to the advanced S-LGA
(Soldered Land Grid Array) packaging technology, which enables easier and more reliable soldering
processes compared to a normal LGA (Land Grid Array) package.
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For product features see the
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To determine which u-blox product best meets your needs, see the product selector tables on the
u-blox website www.u-blox.com.

1.2 Low power operation

The ZOE-M8B GNSS SiP is designed for use in portable and wearable applications. It is intended to
run in Super-E mode and defaults to this mode on power up. The Super-E mode provides the best
balance between current consumption vs. performance. The Super-E mode also enables automatic
duty cycling of both the internal and optional external LNA to further lower the total power
consumption.
For specific power saving applications, the host processor has an option to put the receiver into
backup state. All essential data for quick re-starting of navigation can be saved either on the receiver
side or on the host processor side.
The data batching feature allows position fixes to be stored in the RAM of the GNSS receiver for later
retrieval in one batch. Batching of position fixes happens independently of the host system, and can
continue while the host is powered down with as many as 300 sets of position, accuracy estimate,
speed, and time data.
Used in combination with multi-GNSS Assistance data, the ZOE-M8B GNSS SiP not only features fast
TTFF and good sensitivity, but also ensures minimal power consumption, since A-GNSS enables the
chip to maximize its power-optimized period.
1.2.1 Super-E mode overview
Super-E mode provides optimal power savings while maintaining good level of position and speed
accuracy. ZOE-M8B defaults to Super-E mode on power up.
UBX-17045131 - R04
Production Information
ZOE-M8B Data Sheet
Contents
ZOE-M8B - System Integration Manual
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