Infineon XENSIV BGT60LTR11AIP Manual
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AN650
XENSIV
BGT60LTR11AIP Radar Shield2Go
™
Super low-power 60 GHz Doppler radar sensor with antennas -in-
package
Board version 1.2
About this document
Scope and purpose
This application note describes the BGT60LTR11AIP Radar Shield2Go and gives an overview of its functions. The
Shield2Go is an ultra-small Infineon Technologies PCB standard, which comes with different ICs on it intended
for different use cases.
Intended audience
This document is intended for engineers, prototype creators, hobbyists and makers – basically, anyone who
wants to work hands-on with radar, but without the need to deal too much with the development process,
focusing more on the application outcome.
Application Note
Please read the Important Notice and Warnings at the end of this document
V1.0
www.infineon.com
page 1 of 32
2022-12-15
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Table of Contents
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Summary of Contents for Infineon XENSIV BGT60LTR11AIP
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Page 1: About This Document
Scope and purpose This application note describes the BGT60LTR11AIP Radar Shield2Go and gives an overview of its functions. The Shield2Go is an ultra-small Infineon Technologies PCB standard, which comes with different ICs on it intended for different use cases. Intended audience This document is intended for engineers, prototype creators, hobbyists and makers –... -
Page 2: Table Of Contents
Getting started ........................7 Overview ..............................7 Hardware setup ............................7 Software setup ............................10 3.3.1 Required software for Infineon’s XMC™ boards ................10 3.3.2 Required software for Arduino ......................10 3.3.3 Installation instructions for XMC™ microcontrollers ..............10 3.3.3.1 Prework for SEGGER J-Link ...................... -
Page 3: Introduction
SPI modes. The Shield2Go comes with castellated holes to ensure several connection styles. The Shield2Go family is recommended to be used with either Infineon’s XMC™ maker board series (e.g., XMC1100 Boot Kit/XMC1400 Arduino/XMC 2Go/XMC4700 Relax Kit) or Arduino boards (e.g., Rev3/MKR1000). -
Page 4: Spi Communication
LEDs that blink when presence or movement direction is detected • Potentiometers and switches to adjust the settings of the radar (QS) • Super-small (48.8 mm x 23.9 mm) board design with Infineon’s Shield2Go format • 60 GHz transceiver BGT60LTR11AIP... -
Page 5: Board And Pin-Out Overview
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Board and pin-out overview Board and pin-out overview This section gives an overview of Infineon’s standardized Shield2Go pin-out. Figure 2 The BGT60LTR11AIP Radar Shield2Go (top view) Application Note page 5 of 32 V1.0... -
Page 6: Board Dimensions
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Board and pin-out overview Board dimensions Figure 3 Layer stack-up of the BGT60LTR11AIP Radar Shield2Go Application Note page 6 of 32 V1.0 2022-12-15... -
Page 7: Getting Started
MCUs mentioned in section 1.1.1. Note that any MCU will work if the voltage levels are the same (3.3 V), otherwise level shifting is mandatory. Because Infineon offers software libraries compatible with Arduino and Infineon XMC™ boards, software setup for other MCU platforms might be more difficult. - Page 8 After that, connect the microcontroller board via USB to your computer and continue with the software setup as described in section 4. Note: By using Infineon’s MyIoT adapter, you can easily plug up to three Shield2Gos on an Arduino Uno Rev3 form factor due to the integrated level shifter on the adapter.
- Page 9 Wi-Fi board. We have prepared examples of applications on the do-it-yourself website Hackster.IO for you – check out the Infineon_Team Channel for more information. Find all libraries and instructions to get started on Infineon’s GitHub repository. Application Note page 9 of 32 V1.0...
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Page 10: Software Setup
Manager. Type BGT60LTR11 and install the library. 4) Additionally, install Segger J-Link if you are using an Infineon XMC1100 Boot Kit or XMC4700 Relax Kit. Continue with the section below if you are using Infineon’s XMC™ microcontroller for Arduino. 3.3.2... -
Page 11: Using Arduino Ide With Xmc™ Microcontroller
Arduino IDE configuration – Preferences Paste the following URL into the “Additional Boards Manager URLs” input field under File > Preferences to add Infineon’s microcontroller boards to the Arduino IDE. (It is easier to copy – there is no clickable link.) https://github.com/Infineon/XMC-for-Arduino/releases/latest/download/package_infineon_index.json... - Page 12 XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Getting started Note: The former “package_infineon_index.json” URL will no longer be maintained after version 1.4.0. Upcoming versions will not be shown as available in the board manager. Figure 9 Arduino IDE configuration –...
- Page 13 XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Getting started Figure 10 Arduino configuration – installing XMC™ library In the boards listed under Tools > Board, the XMC™ microcontroller boards are added and can be used from now on.
- Page 14 XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Getting started Important notes This integration will only work for Arduino IDE 1.5 or above. • The XMC1100 Boot Kit has limitations compared to the official Arduino boards (consult the XMC-for- •...
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Page 15: Radar Modes Setup
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Radar modes setup Radar modes setup TD and PD signals With the Shield2Go you can adjust all four quad-state signals (QS1 to QS4) mechanically rather than via software. -
Page 16: Quad-State Basics For Adjustable Qs1 To Qs4 Signals
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Radar modes setup and SPICLK are also sampled to determine the PRT: dc_rep_rate (Reg7[11:10]). In addition, pins QS2 and QS3 are evaluated by the ADC and converted into 4-bit values before each “mean window”. By default, the Radar Shield2Go is pulled to VDD_RF (1.5 V) with a 100 kΩ... -
Page 17: Qs1 - Mmic Operation Modes
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Radar modes setup 4.2.3 QS1 – MMIC operation modes QS1 is used to select the mode of the chip. By default, it is recommended to use either (advance) autonomous mode or SPI mode. -
Page 18: Qs3 - Detector Hold Time
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Radar modes setup Detector threshold /16 – 9*V /16 – 10*V 10*V /16 – 11*V 11*V /16 – 12*V 12*V /16 – 13*V 13*V /16 – 14*V 1344 14*V /16 –... - Page 19 XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Radar modes setup QS3 is used to select the hold time of the T output, and it is written into Reg10 as described in the det_o BGT60LTR11AIP User Guide.
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Page 20: Qs4 - Operating Frequency
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Radar modes setup 4.2.6 QS4 – operating frequency QS4 is used to select the device operating frequency by configuring the PLL. Frequency is also dependent on the Japan e-fuse. The QS4 signal can be adjusted by using the tri-state switch “QS4: freq” on the Shield2Go. QS3 settings –... -
Page 21: Hardware Circuits
This Shield2Go needs to be connected to a 3.3 V DC power supply that provides at least 150 mA. Connect +3.3 V to pin 7 and ground to pin 6 (GND). The BGT60LTR11AIP Shield2Go is equipped with a 150 mA Infineon LDO TLS202A1 that provides the necessary 1.5 V for the radar IC, as seen in Figure 16. -
Page 22: Leds
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Hardware circuits Figure 17 Level shifter circuit (3.3 V to 1.5 V, and vice versa) LEDs The Radar Shield2Go comes with four different LEDs. The green PWR LED indicates that the +3V3 pin is connected to a power supply. The blue motion LED indicates any movement detected by the radar, while the red direction LED indicates an approaching or departing object. -
Page 23: Crystal Oscillator
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Hardware circuits The shield has two LEDs to indicate the motion detection (blue) and the target’s direction of motion (red), as shown in Table 9. R10 and R11 are current-limiting resistors. The digital block within the detector in the MMIC evaluates and sets the TD/PD outputs of the BGT60LTR11AIP MMIC. -
Page 24: External Capacitors
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Hardware circuits External capacitors The BGT60LTR11AIP MMIC is highly duty-cycled and performs a sample and hold (S&H) operation for lower power consumption. The S&H switches are integrated into the chip at each differential IQ mixer output port. They are controlled synchronously via the internal state machine. - Page 25 XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Hardware circuits mixer_out hold Figure 21 Internal circuit of the BGT60LTR11AIP connected with adjustable external capacitors Longer pulse width can have a higher value. This leads to a reduced bandwidth of the RC filter ��...
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Page 26: Pcb Design
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package PCB design PCB design Layer stack-up and routing Figure 22 Layer stack-up of the BGT60LTR11AIP Radar Shield2Go The PCB is designed with a four-layer stack-up with standard FR4 material. Figure 22 shows the different layers and their thicknesses. -
Page 27: Schematics
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package PCB design Package Package Manufacturer order Designator Value metric imperial number C5, C6 1608 0603 150 nF GRM188R61A154MA01 L1, L2 1005 600 R MMZ1005B601CT000 QS1: mode CJS-1200B1 CJS-1200B1 QS4: freq. - Page 29 QS1: mode R_QS1 CJS-1201B1/TB1 QS4: freq R_QS4 CJS-1201A1 BGT_PLL_TRIG_1.5 BGT_MOSI_1.5_A BGT_SCK_1.5_A 100k 100k MMZ1005B601CT000 Yellowish Green Jumper Cut Wire to disable LED Green LED...
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Page 30: References
[2] Infineon datasheet – BGT60LTR11AIP [3] Infineon user guide – AN625 – “User’s guide to BGT60LTR11AIP” [4] Infineon’s maker and prototyping portfolio [Link] [5] Infineon’s open-source Library on GitHub [Link] [6] Infineon’s do-it-yourself channel on Hackster.IO [Link] Application Note page 30 of 32 V1.0... -
Page 31: Revision History
XENSIV™ BGT60LTR11AIP Radar Shield2Go Super low-power 60 GHz Doppler radar sensor with antennas-in-package Revision history Revision history Document Date of release Description of changes version V1.0 2022-12-15 Initial version Application Note page 31 of 32 V1.0 2022-12-15... - Page 32 Infineon Technologies hereby disclaims dangerous substances. For information on the types © 2022 Infineon Technologies AG. any and all warranties and liabilities of any kind in question please contact your nearest Infineon All Rights Reserved. (including without limitation warranties of non- Technologies office.
- Page 33 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Infineon S2GORADARBGT60LTR11TOBO1...