Users Manual

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Introduction

The ATMUBX0A module is based on Decawave's DW1000 Ultra Wideband (UWB)

transceiver IC, which is an IEEE 802.15.4- 2011 UWB implementation. It integrates UWB

and Bluetooth® antenna, all RF circuitry, Nordic Semiconductor nRF52832 and a motion

sensor.

Key Features

• Ranging accuracy to within 10cm.

• UWB Channel 5 printed PCB antenna (6.5 GHz)

• 6.8 Mbps data rate

• 60 m line-of-sight range typical

• IEEE 802.15.4-2011 UWB compliant

• Nordic Semiconductor nRF52832

• Bluetooth connectivity

• Bluetooth chip antenna

• Motion sensor: 3-axis accelerometer

• Current consumption optimised for low power sleep mode: <15μA

• Supply voltage: 2.8 V to 3.6 V

• Size: 19.1 mm x 26.2 mm x 2.6 mm

Key Benefits

• Enables anchors, tags & gateways to quickly get an entire RTLS system up-and-

running

• Accelerates product designs for faster Time-to-Market & reduced development costs

• Ready-to-go embedded firmware to minimise software development

• Over-the-air updates

• User API to ATMUBX0A firmware (available as a library) for user code customisation

• On-board Bluetooth SMART for connectivity to phones/tablets/PCs

Summary of content (11 pages)

PAGE 1
Introduction The ATMUBX0A module is based on Decawave's DW1000 Ultra Wideband (UWB) transceiver IC, which is an IEEE 802.15.4- 2011 UWB implementation. It integrates UWB and Bluetooth® antenna, all RF circuitry, Nordic Semiconductor nRF52832 and a motion sensor. Key Features • Ranging accuracy to within 10cm. • UWB Channel 5 printed PCB antenna (6.5 GHz) • 6.8 Mbps data rate • 60 m line-of-sight range typical • IEEE 802.15.
PAGE 2
• SPI, UART and Bluetooth APIs to access ATMUBX0A firmware from an external device • Low-power hardware design and software architecture for longer battery life High Level Block Diagram
PAGE 3
1 OVERVIEW The block diagram on page 1 of this data sheet shows the major sections of the ATMUBX0A. An overview of these blocks is given below. 1.1 UWB Transceiver DW1000 The module has a DW1000 UWB transceiver mounted on the PCB. The DW1000 uses a 38.4 MHz reference crystal. The crystal has been trimmed in production to reduce the initial frequency error to approximately 3 ppm, using the DW1000 IC’s internal on-chip crystal trimming circuit.
PAGE 4
See the LIS2DH12TR Datasheet[4] for more detailed information on device functionality, electrical specifications and typical performance. 1.5 Software on board The ATMUBX0A module comes pre-loaded with embedded firmware which provides twoway ranging (TWR) and real time location system (RTLS) functionality. See the details in the ATMUBX0A Firmware User Guide [6].
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2.
PAGE 6
Table 2: Explanation of Abbreviations
PAGE 7
Table 3: Internal nRF52832 pins used and their function DW1000’s GPIOs 5,6 control the DW1000 SPI mode configuration. Within the ATMUBX0A module, those GPIOs are unconnected and will be internally pulled down. Consequently, SPI will be set to mode 0. For more details, please refer to DW1000 data sheet [2]. Table 4: I2C slave devices address I2C 3 ELECTRICAL SPECIFICATIONS The following tables give detailed specifications for the ATMUBX0A module. Tamb = 25 ˚C for all specifications given. 3.
PAGE 8
3.2 DC Characteristics Table 6: ATMUBX0A DC Characteristics 3.3 Receiver Sensitivity Characteristics Tamb = 25 ˚C, 20 byte payload. These sensitivity figures assume an antenna gain of 0 dBi and should be modified by the antenna characteristics, depending on the orientation of the ATMUBX0A.
PAGE 9
Table 8: ATMUBX0A Typical Receiver Sensitivity Characteristics 3.4 Transmitter AC Characteristics 3.4.
PAGE 10
Stresses beyond those listed in this table may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions beyond those indicated in the operating conditions of the specification is not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability. 4. FCC Statement This device complies with Part 15 of the FCC Rules.
PAGE 11
The module is limited to OEM installation ONLY The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install module. When the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module.