FCC ID: 2AVKZRM68-NTA Milimeter Wave Radar Module

www.smartradarsystem.com A-7F, 253, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13486, Republic of Korea Tel : +82-31-8018-7188 Fax : +82-31-8018-7189 http://www.smartradarsystem.com User Manual Radar Module (RM68-NTA) Status:

Initial Version:

0.1 Date:

Author:

07 Feb. 2020 Smart Radar System Document number:

Filename:

RM68-NTA User Manual RM68-01 User Manual 1 www.smartradarsystem.com Revision Sheet (history) Release No. Date Revision Description 02/07/2020 Initial Work Rev. 0.1 Rev. 0.2 RM68-01 User Manual 2 www.smartradarsystem.com Contents 1. Overview and Package Contents ............................................................................................................ 5 1.1 Introduction ................................................................................................................................................... 5 1.2 Features ........................................................................................................................................................... 5 1.3 Package Contents ....................................................................................................................................... 6 2. Hardware Description ................................................................................................................................... 7 2.1 Board image .................................................................................................................................................. 7 2.1.1 Radar module (RM68-NTA)............................................................................................................ 7 2.1.2 Radar module Debugger Board (RM68_DBG) ....................................................................... 8 2.2 Connectors ..................................................................................................................................................... 9 2.2.1 12-pin Connector................................................................................................................................ 9 2.2.2 Power Connector ................................................................................................................................ 9 2.2.3 Mini-USB Connector ....................................................................................................................... 10 2.3 Switches and LEDs ................................................................................................................................... 10 2.3.1 Sense-on-Power (SOP) Switch ................................................................................................... 10 2.3.2 Reset Switch ....................................................................................................................................... 10 2.3.3 LEDs ....................................................................................................................................................... 10 3. Specifications .................................................................................................................................................. 12 4. Software Setup............................................................................................................................................... 13 4.1 Configure Your PC................................................................................................................................... 13 4.2 Software, Development Tools, and Example Code .................................................................. 13 5. Mechanical Mounting of PCB ................................................................................................................ 14 6. PCB Storage and Handling Recommendations ............................................................................ 14 7. Troubleshooting ............................................................................................................................................ 14 8. Notice for FCC ................................................................................................................................................ 15 RM68-01 User Manual 3 www.smartradarsystem.com List of Figures List of Tables Figure 1. RM68-NTA (Top) .................................................................................................................................... 7 Figure 2. RM68-NTA (Bottom) ............................................................................................................................ 7 Figure 3. RM68 Debugger Board (Top) .......................................................................................................... 8 Figure 4. Device manager on the PC ........................................................................................................... 13 Figure 5. Mechanical Size .................................................................................................................................. 14 Table 1. List of Package .......................................................................................................................................... 6 Table 2 12-Pin IO Connector Pin ....................................................................................................................... 9 Table 3 SOP Switch for Boot mode ............................................................................................................... 10 Table 4 LEDs Information ................................................................................................................................... 11 RM68-01 User Manual 4 www.smartradarsystem.com 1. Overview and Package Contents 1.1 Introduction The RM68-NTA Module from Smart Radar System(SRS) is an easy-to-use evaluation board for the IWR6843 mmWave sensing device. The RM68-NTA Module contains everything required to start developing software for on-chip C67x DSP core and low-power ARM R4F controllers, including onboard emulation for programming and debugging as well as onboard LEDs for quick integration of a simple user interface. 1.2 Features 12-pin connectors interface connector FTDI with a serial port for onboard QSPI flash programming Back-channel UART through USB-to-PC for logging purposes On-board antenna A LEDs for basic user interface 5-V power to power the board RM68-01 User Manual 5 www.smartradarsystem.com 1.3 Package Contents Table 1. List of Package Number Name & Description Picture RM68-NTA Radar Module RM68_DBG Radar Module Debugger board RM68-01 User Manual 6 www.smartradarsystem.com 2. Hardware Description 2.1 Board image 2.1.1 Radar module (RM68-NTA) Figure 1 and Figure 2 show top and bottom view of the RM68-NTA, respectively. Array TX Antenna (3TX) Array RX Antenna

(4RX) IWR6843 With shield-case Figure 1. RM68-NTA (Top) PMIC User LED Reset LED Figure 2. RM68-NTA (Bottom) QSPI Flash memory 12pin IO Connector RM68-01 User Manual 7 www.smartradarsystem.com 2.1.2 Radar module Debugger Board (RM68_DBG) FTDI

(Dual UART) Mini-USB Connector Reset Switch SOP Selection Switch 5V Power Connector Figure 3. RM68 Debugger Board (Top) RM68-01 User Manual 8 www.smartradarsystem.com 2.2 Connectors 2.2.1 12-pin Connector Connector - P/N : B12B-PUDSS-1(LF) (JST) Table 2 12-Pin IO Connector Pin Description IN/OUT Name Num Num Name IN/OUT Description Internal pulldown

(1kohm). For flashing and send the config data Input SOP2 2 UART2_TX Output For MSS logger. Output UART1_TX 4 UART2_RX Input Not used Input UART1_RX 6 AR_RESET_N Input Internal pullup Low Reset.

(10kohm) High Enable. Internal pulldown (100kohm) Input PWR_EN 8 GND GND 10 GND 5V/2A Input VDD_5V0 12 11 VDD_5V0 Input 5V/2A 1 3 5 7 9 2.2.2 Power Connector The RM68-NTA is powered by the 5-V power jack (4-A current limit), shown in Figure 7. As soon as the power is provided, the RESET, PWR_OK and PWR LEDs should glow, indicating that the board is powered on. NOTE1: A 5-V, > 2.5-A supply brick with a 2.1-mm barrel jack (center positive) is not included. SRS recommends using an external power supply that complies with applicable regional safety standards, such as UL, CSA, VDE, CCC, PSE, and more. The length of the power cable should be < 3 m. NOTE2: After the 5-V power supply is provided to the RM68 debugger Board, it is recommended to press the RESET switch (SW50) one time to ensure a reliable boot-up state. RM68-01 User Manual 9 www.smartradarsystem.com 2.2.3 Mini-USB Connector The connectivity is provided through the mini USB connector over the onboard FT2232H(FTDI). The FT2232H is a USB 2.0 High Speed to Dual UART IC. 2.3 Switches and LEDs 2.3.1 Sense-on-Power (SOP) Switch The IWR6843 device can be set to operate in three different modes based on the state of the SOP lines. These lines are sensed only during boot up of the IWR device. The state of the device is detailed by Table 3. Table 3 SOP Switch for Boot mode SW NUM SOP MODE FUNCTION Flashing Debug 3 SOP 2 OFF ON OFF 2.3.2 Reset Switch Used to RESET the IWR6843 device. 2.3.3 LEDs Table 4 provides the switch and LED information. RM68-01 User Manual 10 www.smartradarsystem.com Table 4 LEDs Information Ref Num. Usage Comments LED1 GPIO2 (USER LED) Glows when the GPIO2 is logic-1 LED2 RESET LED LED is glowing, the device is out of reset. This LED will glow This LED is used to indicate the state of RESET pin. If this only after the 5-V supply is provided. RM68-01 User Manual 11 www.smartradarsystem.com 3. Specifications Absolute Maximum Ratings VDD_5V0 Supply voltage input Voltage Input High Voltage Input Low Voltage Input High Voltage Input Low High-level output threshold (IOH = 6 mA) Low-level output threshold (IOL = 6 mA) VIH VIL VIH VIL VOH VOL Recommended Operating Conditions Supply voltage input Supply Current input Voltage Input High Voltage Input Low Voltage Input High Voltage Input Low High-level output threshold (IOH = 6 mA) Low-level output threshold (IOL = 6 mA) VDD_5V0 VIH VIL VIH VIL VOH VOL Min Max Unit V 6 V 0.62 V V 0.3 V V 0.45 V

-0.3 2.25 1.57 2.85 Min Max Unit V 5.25 A V 0.62 V V 0.1 V V 0.3 V 4.75 2 2.25 1.57 2.85 UART1_RX, UART2_RX RESET_N, SOP2 UART1_TX, UART2_TX, UART1_RX, UART2_RX RESET_N, SOP2 UART1_TX, UART2_TX RM68-01 User Manual 12 www.smartradarsystem.com 4. Software Setup 4.1 Configure Your PC This connection provides the following interfaces to the PC:

When the USB is connected to the PC, the device manager should recognize the following COM ports. UART1 for flashing the onboard serial flash, downloading FW through Radar Studio, and getting application data sent through the UART.(ex, COM5) MSS logger UART2 (can be used to get MSS code logs on the PC).(ex, COM6) Figure 4. Device manager on the PC 4.2 Software, Development Tools, and Example Code To enable quick development of end applications on the C67x DSP and R4F core in the IWR6843, TI provides a software development kit (SDK) that includes demo codes, software drivers, emulation packages for debug, and more. These can be found at mmwave-sdk. RM68-01 User Manual 13 www.smartradarsystem.com 5. Mechanical Mounting of PCB

* Uint : mm L x W x H : 60 x 80 x 9.6 L W Figure 5. Mechanical Size 6. PCB Storage and Handling Recommendations The immersion silver finish of the PCB provides a better high-frequency performance, but is also prone to oxidation in open environments. This oxidation causes the surface around the antenna region to blacken. To avoid oxidation, the PCB should be stored in an ESD cover and kept at a controlled room temperature with low humidity conditions. All ESD precautions must be taken while using and handling the RM68-NTA. 7. Troubleshooting RM68-01 User Manual 14 www.smartradarsystem.com 8. Notice for FCC FCC Approval This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device should be installed and operated with minimum 20Cm between the radiator and your body. OEM Responsibilities to comply with FCC

-The module is limited to OEM installation only.

-The OEM integrator is responsible for ensuring that the end-user has no manual instructions to remove or install module.

-The module is limited to installation in fixed applications.

-The transmitter module must not be co-located or operating in conjunction with any other antenna or transmitter except in accordance with FCC multi-transmitter product procedures.

-The OEM integrator will be responsible to satisfy SAR/ RF Exposure requirements, when the module integrated into the host device.

-The OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.).Also, the OEM integrator is responsible to provide to the host manufacturer for compliance with the Part 15B requirements. Host Product Manual

-The host manual shall include the following regulatory statement:

-Part 15.19: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

-Part 15.21: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.

-This device should be installed and operated with minimum 20Cm between the radiator and your body. Host Product labeling The module is labeled with its own FCC. If the FCC ID 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. In that case, the final end product must be labeled in a visible area with the following: Contains FCC ID: 2AVKZRM68-NTA RM68-01 User Manual 15

FCC ID: 2AVKZRM68-NTA SAMPLE LABEL & LOCATION LABELLING REQUIREMENTS The Label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase

- The FCC label shown is representative of the label that will appear on the radio when in production. Other information may also be included on this label. Copyright 2020, DT&C Co., Ltd.

Smart Radar System, Inc. A-7F, 253, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea Date: 02/07/2020 Timco Engineering, Inc. 849 N.W. State Road 45 P.O. Box 370 Newberry, Florida 32669 USA RE: Request of Confidentiality for FCC ID: 2AVKZRM68-NTA To Whom It may Concern:

Pursuant to Sections 0.457 and 0.459 of the Commission`s Rules(CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, Smart Radar System, Inc. hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give Smart Radar System, Inc. temporary confidentiality of commercially sensitive information prior to product release. The requested permanent and Short-Term Confidential exhibits are listed as follows:

Exhibit Description PERMANENT & SHORT-TERM CONFIDENTIAL LIST PERMANENT SHORT-TERM 1 2 3 4 5 6 7 8 9 Block Diagram Schematics Part Lists Operation Description NA Internal Photos External Photos Test-Setup Photos User Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be public before the date of the Grant for this application. Sincerely, Contact Name: Jaecheol Ahn Title: Leader of Hardware Development Team

FCC ID: 2AVKZRM68-NTA Smart Radar System, Inc. A-7F, 253, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea MODULAR APPROVAL LETTER Modular Approval Requirement Answers

(i) The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements.

(ii) The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation.

(iii) The modular transmitter must have its own power supply regulation.

(iv) The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section.

(v) The module must demonstrate compliance in a stand-alone configuration.

(vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number.

(vii) The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization.

(viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Sincerely, Yes Yes Yes Yes Yes Yes Yes Yes Name: Jaecheol Ahn Position: Leader of Hardware Development Team

Smart Radar System, Inc. A-7F, 253, Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea Date: 02/07/2020 Timco Engineering, Inc. 849 N.W. State Road 45 P.O. Box 370 Newberry, Florida 32669 USA Letter of Authorization We, the undersigned, hereby authorize Geunki Son of DT&C Co., Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: 2AVKZRM68-NTA including signing of all documents relating to these matters. Any and all acts carried out by Geunki Son of DT&C Co., Ltd. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from Smart Radar System, Inc. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Sincerely, Contact Name: Jaecheol Ahn Title: Leader of Hardware Development Team