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Product Overview

The DWM1001C 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 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

• Certified to ETSI, FCC and ISED regulations

o FCC ID: 2AQ33-DWM1001, IC: 23794-DWM1001

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

• Low-power hardware design and software architecture for longer battery life

• SPI, UART, I2C and Bluetooth® to interface DWM1001C with an external device

• Ready-to-go embedded downloadable firmware for Two Way Ranging RTLS application:

o User API to DWM1001C firmware (available as a library) for user code customisation

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

o SPI, UART and Bluetooth® APIs to access module firmware from an external device

o See MDEK1001 and PANS on www.decawave.com for additional information

Summary of content (28 pages)

PAGE 1
Product Overview The DWM1001C 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 IEEE 802.15.
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DWM1001C Datasheet Table of Contents 1 OVERVIEW ................................................... 5 1.1 UWB TRANSCEIVER DW1000 ....................... 5 1.2 BLUETOOTH® MICROPROCESSOR NORDIC NRF52832 ........................................................... 5 1.3 POWER SUPPLY AND POWER MANAGEMENT...... 5 1.4 THREE AXIS MOTION DETECTOR STMICROELECTRONICS LIS2DH12TR ........................ 5 1.5 SOFTWARE ON BOARD ................................... 5 2 DWM1001C CALIBRATION ...........................
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DWM1001C Datasheet List of Tables TABLE 1: DWM1001C PIN FUNCTIONS ......................... 7 TABLE 2: EXPLANATION OF ABBREVIATIONS ..................... 9 TABLE 3: INTERNAL NRF52832 PINS USED AND THEIR FUNCTION .......................................................... 9 TABLE 4: I2C SLAVE DEVICES ADDRESS I2C ...................... 9 TABLE 5: DWM1001C OPERATING CONDITIONS .......... 10 TABLE 6: DWM1001C DC CHARACTERISTICS ............... 10 TABLE 7: DWM1001C RECEIVER AC CHARACTERISTICS .
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DWM1001C Datasheet DOCUMENT INFORMATION Disclaimer Decawave reserves the right to change product specifications without notice. As far as possible changes to functionality and specifications will be issued in product specific errata sheets or in new versions of this document. Customers are advised to check with Decawave for the most recent updates on this product.
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DWM1001C Datasheet 1 OVERVIEW The block diagram on page 1 of this data sheet shows the major sections of the DWM1001C. 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.
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DWM1001C Datasheet 2 DWM1001C CALIBRATION Depending on the end-use applications and the system design, DWM1001C settings may need to be tuned. To help with this tuning several built in functions such as continuous wave transmission and continuous packet transmission can be enabled. See the DW1000 User Manual [3] for further details. 2.1.
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DWM1001C Datasheet 3 DWM1001C PIN CONNECTIONS 3.
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DWM1001C Datasheet PI N I/O (Default ) I2C_SCL (Master) 15 DO Master I2C Clock Line GPIO_23 16 DIO General purpose I/O pin. [N] P0.23 GPIO_13 17 DIO General purpose I/O pin. [N] P0.13 UART_RX 18 DI UART_RX [N] P0.11 [N] P0.26 SIGNAL NAME REFERENCE (Pin designation) DESCRIPTION [N] P0.28 READY 19 DO Generated interrupt from the device. Indicates events such as SPI data ready, or location data ready. See the function dwm_int_cfg() in the DWM1001 Firmware API Guide for details[5].
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DWM1001C Datasheet SIGNAL NAME I/O (Default ) PI N REFERENCE (Pin designation) DESCRIPTION Ground 1, 11, 24, 34 GND G Common ground. Table 2: Explanation of Abbreviations ABBREVIATION DI EXPLANATION Digital Input DIO Digital Input / Output DO Digital Output G Ground P Power Supply N nRF52832 DW DW1000 Note: Any signal with the suffix ‘n’ indicates an active low signal. Table 3: Internal nRF52832 pins used and their function nRF52832 Pin Function PO.19 DW_IRQ PO.16 DW_SCK PO.
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DWM1001C Datasheet 4 ELECTRICAL SPECIFICATIONS The following tables give detailed specifications for the DWM1001C module. Tamb = 25 ˚C for all specifications given. 4.1 Nominal Operating Conditions Table 5: DWM1001C Operating Conditions Parameter Min. Operating temperature -40 Supply voltage VCC 2.8 Voltage on VDDIO for programming OTP 4.2 3.7 Typ. 3.3 3.8 Max. Units +85 ˚C 3.
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DWM1001C Datasheet 4.4 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 DWM1001C. Table 8: DWM1001C Typical Receiver Sensitivity Characteristics Packet Error Rate Data Rate Receiver Sensitivity Units 1% 6.8 Mbps -98*(-92) dBm/500 MHz Condition/Note Preamble 128 Carrier frequency offset ±10 ppm 10% 6.
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DWM1001C Datasheet 4.5.1 Absolute Maximum Ratings Table 10: DWM1001C Absolute Maximum Ratings Parameter Supply voltage Min. Max. Units 2.8 3.9 V 0 dBm Receiver power Temperature - Storage temperature -40 +85 ˚C Temperature – Operating temperature -40 +85 ˚C ESD (Human Body Model) DWM1001C pins other than VCC, VDDIO and GND 2000 V 3.6 Note that 3.
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DWM1001C Datasheet 5 TRANSMIT AND RECEIVE POWER CONSUMPTION The following Figures give power profiles for the DWM1001C on a DWM1001-DEV PCB when used for Two Way Ranging, see Figure 2. Peak values are given. Figure 2 shows an example of the power consumption of a DWM1001C tag running the factory loaded firmware. The tag is in low-power mode, and two-way ranging with 3 anchors. The deep-sleep current occurs while the tag is sleeping with only the RTC and accelerometer active.
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DWM1001C Datasheet 6 ANTENNA PERFORMANCE This section details antenna radiation patterns for the DWM1001-Dev board. Figure 3 presents a view of the measurement planes considered in this document. Table 11 shows antenna radiation patterns for the DWM1001C module mounted on the DWM1001-Dev board. Three planes in the spherical space about the centre of the board are measured, with theta and phi plots representing perpendicular polarisations.
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DWM1001C Datasheet Table 11. Antenna Radiation Patterns Antenna Gain (dBi) vs.
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DWM1001C Datasheet 7 APPLICATION INFORMATION 7.1 Application Board Layout Guidelines When designing the PCB onto which the DWM1001C will be soldered, the proximity of the DWM1001C on-board antenna to metal and other non-RF transparent materials needs to considered carefully. Two suggested placement schemes are shown below.
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DWM1001C Datasheet 8 PACKAGE INFORMATION 8.1 Module Drawings All measurements are given in millimetres. Figure 5: Module Package Size (units: mm) © Decawave Ltd 2017 Subject to change without notice Version 1.
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DWM1001C Datasheet 8.2 Module Land Pattern The diagram below shows the DWM1001C module land pattern. Figure 6: DWM1001C Module Land Pattern (units: mm) 8.3 Module Marking Information Each module has a label on the shield with a serial number in the following format: YY WW 0 SSSSS Where: YY WW 0 SSSSS © Decawave Ltd 2017 indicates the year indicates the week of the year indicates the DWM1001C module indicates the module manufacturing number Subject to change without notice Version 1.
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DWM1001C Datasheet 8.4 Module Solder Profile Figure 7: DWM1001C Module Solder Profile © Decawave Ltd 2017 Subject to change without notice Version 1.
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DWM1001C Datasheet 9 ORDERING INFORMATION 9.1 Tape and Reel Information Figure 8: DWM1001C Tape and Reel Dimensions © Decawave Ltd 2017 Subject to change without notice Version 1.
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DWM1001C Datasheet 10 REGULATORY INFORMATION Model Number: DWM1001 FCC ID: 2AQ33-DWM1001 IC: 23794-DWM1001 10.1 Agency Certifications 10.1.1 United States (FCC) This device complies with Part 15 of the FCC Rules: Operation is subject to the following conditions: 1. This device many not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation Changes and Modifications not expressly approved by Decawave Ltd.
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DWM1001C Datasheet 10.1.3 European Union (ETSI) The DWM1001C Module has been certified for use in European Union countries. If these modules are incorporated into a product, the manufacturer must ensure compliance of the final product to be European harmonized EMC and low voltage/safety standards. A declaration of Conformity must be issued for each of these standards and kept on file as described in Annex II of the R&TTE Directive.
PAGE 23
DWM1001C Datasheet 10.1.4 Industry Canada (IC) Compliance Statements This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.
PAGE 24
DWM1001C Datasheet 10.3 Device Classifications Since host devices vary widely with design features and configurations module integrators shall follow the guidelines below regarding device classification and simultaneous transmission, and seek guidance from their preferred regulatory test lab to determine how regulatory guidelines will impact the device compliance. Proactive management of the regulatory process will minimize unexpected schedule delays and costs due to unplanned testing activities.
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DWM1001C Datasheet 10.6 Operating Requirements and Conditions The design of DWM1001C complies with U.S. Federal Communications Commission (FCC) guidelines respecting safety levels of radio frequency (RF) exposure for Mobile or Portable devices. FCC ID: This product contains FCC ID: 2AQ33-DWM1001 Note: In the case where the Host / Module combination has been re-certified the FCC ID shall appear in the product manual as follows: FCC ID: 2AQ33-DWM1001 10.
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DWM1001C Datasheet 11 GLOSSARY Table 12: Glossary of Terms Abbreviation Full Title Explanation EIRP Equivalent Isotropically Radiated Power The amount of power that a theoretical isotropic antenna (which evenly distributes power in all directions) would emit to produce the peak power density observed in the direction of maximum gain of the antenna being used ETSI European Telecommunication Standards Institute Regulatory body in the EU charged with the management of the radio spectrum and the settin
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DWM1001 Datasheet 12 REFERENCES [1] [2] [3] [4] [5] [6] [7] nRF52832 Product Specification v1.3 www.nordicsemi.com Decawave DW1000 Datasheet www.decawave.com Decawave DW1000 User Manual www.decawave.com STMicroelectronics LIS2DH12TR www.st.com DWM1001 Firmware API Guide DWM1001 Firmware User Guide IEEE802.15.4-2011 or “IEEE Std 802.15.4™‐2011” (Revision of IEEE Std 802.15.4-2006). IEEE Standard for Local and metropolitan area networks – Part 15.4: Low-Rate Wireless Personal Area Networks (LRWPANs).
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DWM1001 Datasheet 15 FURTHER INFORMATION Decawave develops semiconductors solutions, software, modules, reference designs - that enable real-time, ultra-accurate, ultra-reliable local area micro-location services. Decawave’s technology enables an entirely new class of easy to implement, highly secure, intelligent location functionality and services for IoT and smart consumer products and applications. For further information on this or any other Decawave product, please refer to our website www.decawave.