Reference design 60 GHz radar FF module User manual and integration instructions Introduction 60 GHz radar form factor module based on Infineon reference design User manual and integration instructions for host product manufacturers About this document Scope and purpose This document is the user manual with integration instructions for the radar embedded form factor (FF) module with presence detection software.
Reference design 60 GHz radar FF module User manual and integration instructions Introduction Table of contents About this document ....................................................................................................................... 1 Table of contents ............................................................................................................................ 2 1 1.1 1.2 Introduction ........................................................................................
Reference design 60 GHz radar FF module User manual and integration instructions Introduction Glossary Table 1 Abbreviations Abbreviation Name CW Continuous wave FCC Federal Communications Commission FMCW Frequency-modulated continuous wave GPIO General-purpose input/output LDO Low dropout mmWave Millimeter wave PIR Passive infrared sensing RX Receiver SPI Serial peripheral interface TX Transmitter UART Universal asynchronous receiver/transmitter Comment 3
Reference design 60 GHz radar FF module User manual and integration instructions Introduction 1 Introduction Motion sensing is a standard feature present in many devices. Today’s devices become smarter by knowing if the user is around or not. Traditionally, motion sensors have been designed using passive infrared sensing (PIR). As simple as PIR is, there are performance limitations. For example, PIR sensors cannot detect micro motions.
Reference design 60 GHz radar FF module User manual and integration instructions Hardware information 2 2.1 Figure 2 Hardware information Block diagram Module block diagram The main components of the module are the 60 GHz radar chip, the ARM® based MCU and the 80 MHz oscillator. The module has its own power supply regulation. UART is the communication interface to the host device.
Reference design 60 GHz radar FF module User manual and integration instructions Hardware information 2.2 Module pin definitions Figure 3 Components on the module Table 2 Pin no. P1-1 P1-2 P1 pin definitions Signal name DC_IN DC_IN Description Power supply input. Range from 3.6 V to 5.5 V. Power supply input. Range from 3.6 V to 5.5 V.
Reference design 60 GHz radar FF module User manual and integration instructions Hardware information Pin no. P2-1 P2-2 P2-3 Signal name NC NC GPIO0 P2-4 GPIO1 P2-5 GPIO2 P2-6 NC Description Not used Not used GPIO0. Default low, green color for presence indication. GPIO1. Default low, red color for no presence indication. GPIO2. Default low, blue color for bootloader mode indication.
Reference design 60 GHz radar FF module User manual and integration instructions Hardware information 2.4 Module RF parameters Parameter RX_BW, TX_BW Operating frequency1 Output power EIRP Antenna gain of single TX Antenna gain of single RX E-plane of TX and RX antenna H-plane of TX and RX antenna 1 Min. 61.0 2.0 2.0 25 30 Typ. +7.5 3.5 3.5 40 45 Max. 61.5 5.0 5.0 55 60 Units GHz dBm dBi dBi Deg. Deg. Fixed by firmware to comply with granted FCC certification.
Reference design 60 GHz radar FF module User manual and integration instructions UART interface connection 3 UART interface connection A UART interface is used to communicate with the radar module through binary commands. The UART TX and RX pins operate at TTL 3.3 V level. A detailed configuration of the UART interface is shown in the table below. Baud rate 115200 Bit width 8 Parity None Stop bit 1 3.
Reference design 60 GHz radar FF module User manual and integration instructions Radar radiation pattern 4 4.1 Radar radiation pattern Test setup E-plane H-plane -90 Figure 5 4.
Reference design 60 GHz radar FF module User manual and integration instructions Radar radiation pattern Figure 7 Radiation pattern of the H-plane 11
Reference design 60 GHz radar FF module User manual and integration instructions FCC considerations 5 FCC considerations The reference module has been certified at FCC according to the rules as stated in chapter 5.1. Host product manufacturers must immediately file a 2.933 Change-in-ID application to obtain their own FCC ID for the module, and then a C2P application to authorize the module in their specific host device(s).
Reference design 60 GHz radar FF module User manual and integration instructions FCC considerations Notes: See also chapter 5.5 for human exposure considerations. The module has not been tested for simultaneous transmission operations. Refer to chapter 6.2 for integration methods that address the limitation due to RF shielding. 5.4 Trace antenna design Not applicable. 5.
Reference design 60 GHz radar FF module User manual and integration instructions FCC considerations 5.9 Test mode command The UART interface can be used to set up the module in test mode. The following table show the commands for entering different test modes. After power-up or reset, the module will be in presence detection mode, which is sending FMCW chirps. An acknowledge command will be sent from the module after a valid command is received.
Reference design 60 GHz radar FF module User manual and integration instructions Reference design 6 Reference design 6.1 Design recommendation Please reserve the test points of the UART for FW upgrade in the future. Please keep the module solder layer free of ground plane/trace rout in the “keep-out area” (shown in Figure 12). The power trace for DC_IN must be at least 20 mm wide. Figure 8 6.
Reference design 60 GHz radar FF module User manual and integration instructions Reference design emissions. Such potential sources include other intentional transmitters or digital electronics operating at MHz clock rates. Put the PCB with the radar module soldered onto it within a separate section of the host, where it can be shielded from other host electronics. The shielding should be made of sheet metal, metal mesh or a metallic ink-coated material expressly designed as an effective shield.
Reference design 60 GHz radar FF module User manual and integration instructions Module information 7 7.
Reference design 60 GHz radar FF module User manual and integration instructions Module information 7.
Reference design 60 GHz radar FF module User manual and integration instructions SMT/baking information 8 SMT/baking information 8.1 Baking recommendations Baking conditions: Follow MSL Level 4 to carry out the baking process. After the bag is opened, devices that will be subjected to reflow solder or other high-temperature processes must be: o mounted within 72 hours of factory conditions at less than 30°C/60 percent RH o stored at less than 10 percent RH.
Reference design 60 GHz radar FF module User manual and integration instructions SMT/baking information Table 4 1 Description of parameters in reflow profile Pre-heat D1: 140 ~ D2: 200 Soldering 2 Peak temperature 3 D2: 220 T1: 80~120 T2: 60 +/-10 D3: 250°C max. Note: Reflow soldering is recommended a maximum of twice. Note: Add nitrogen during the reflow process to improve SMT solderability. Stencil thickness: 0.1~0.
60 GHz Radar FF Module for Presence Detection based on Infineon Reference Design Table contents Quickofstart guide 9 Revision history Date of release Document version Description of changes 03. 03. 2021 0.3 Reviewed version 29. 06. 2021 1.0 Updates in chapter 5.0 / 5.5 / 5.
Trademarks All referenced product or service names and trademarks are the property of their respective owners. Edition June 2021 Published by Infineon Technologies AG 81726 Munich, Germany © 2021 Infineon Technologies AG. All Rights Reserved. Do you have a question about this document? Email: erratum@infineon.
