FCC ID: 2A7RF-LT102XK UWB Mini radar module

LT102XK UWB Radar Module Datasheet | Rev.1.1 LT102XK UWB Radar Module LT102XK UWB Radar Module Datasheet | Rev.1.1 1 Summary LT102XK radar module is a turn-key Ultra-Wide Band radar system for indoor applications. LT102XK integrates high-

end directive UWB antennas, the signal processing unit, and the communication interfaces. It is designed to fit EU EN 302 065 (EU), FCC CFR 47 Part 15 (USA), RS220 03/2009 (Canada), UWB Regulations. General Specifications Typ. Detection range: up to 12 meters Maximum power consumption: 200mA@5V Operating frequency: 6.5GHz to 8.5GHz Power supply: 5Vdc or USB 5Vdc Temperature range: -40C to +85C Integrated Antenna (aperture 60 by 60) Communication interfaces: USB full speed, SPI, UART Dimensions: 36mm x 68mm Applications:

Presence detection Position tracking Breath detection and monitoring People counting Gesture recognition Table of contents 1 2 3 4 5 Summary ........................................................................................................... 1 Features ............................................................................................................ 2 Operating Principle ............................................................................................ 2 Electrical specification ........................................................................................ 3 Block Diagram ................................................................................................... 3 Pag. 1 of 9 Datasheet | Rev.1.1 LT102XK UWB Radar Module 6 Module connection ............................................................................................ 4 6.1 USB operation ................................................................................................ 4 6.2 Auxiliary IO connector..................................................................................... 4 7 Antenna Performances ...................................................................................... 5 2 Features The LT102XK is a high configurable UWB radar. This module combines a full UWB transceiver and an on board MCU. The module is targeted for application like presence detection, position tracking, breath detection and analysis. The communication is achieved by an USB full speed (virtual com port). The module has an auxiliary connector that may be used as GPIOs or additional communication interface such as SPI and UART. The module is USB powered. 3 Operating Principle The operating principle of the system is based on the direct readout of the backscattered pulse The transmitter emits pulses (Fig. 1a) which travels into space and hits the targets that are into active area of the radar The targets reflect part of the incoming energy (echoes) backward to the radar module (Fig. 1b). The receiver converts the incoming signal to digital data, these data are provided to the MCU and processed according to the application. Datasheet | Rev.1.1 Pag. 2 of 9 LT102XK UWB Radar Module Fig. 1: The basic principle and the waveforms 4 Electrical specification Operating frequency 6.5GHz 7.29GHz 8.5GHz Min Typ Max Mean e.i.r.p. density Peak e.i.r.p. density Supply voltage (USB) 4.5Vdc Current consuption (AuxIO) Range resolution VIL VIH 0.7Vdd 5Vdc 120mA 6mm

-41.3dBm/MHz 0dBm/50MHz 5.5Vdc 200mA 0.3 Vdd Rseries (AuxIO protection) 220 Ohm 5 Block Diagram The block diagram of the LT102XK is reported next. Pag. 3 of 9 Datasheet | Rev.1.1 LT102XK UWB Radar Module Fig. 2 LT102XK System Diagram 6 Module connection 6.1 USB operation In a default configuration, the LT102XK module can be attached to a PC through a A-plug, micro-B USB cable. In this configuration, the power supply of the LT102XK is taken from the +Vcc pin of the USB cable. Fig. 3: Plug and Play configuration. 6.2 Auxiliary IO connector The module provides an auxiliary connector (AuxIO) that may be used to control external electronics, or as alternate communication interface (SPI and/or UART). When both the USB plug and the AuxIO connector are connected the power supply is taken from USB connector. Pin Description Datasheet | Rev.1.1 Pag. 4 of 9 LT102XK UWB Radar Module 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Vext: External Power Supply Gnd: External Ground RXD: UART Interface RX TXD: UART Interface Tx SPI0_CLK: SPI Interface #0, CLK Signal SPI0_CS2: SPI Interface #0, Chip Select (active low) RST: Reset (active low) TDO: JTAG Interface TDO SWCLK/TCLK: JTAG Interface CLK / Serial Wire Debug Interface CLK TMS/SWDIO: JTAG Interface TSM / Serial Wire Debug Interface TMS IO0: General Purpose I/O 0 IO1: General Purpose I/O 1 TDI: JTAG Interface TDI ERASE: Erase internal flash. Leave open. To erase device flash connect to Vdd during startup SPI0_MOSI: SPI Interface #0, MOSI SPI0_MISO: SPI Interface #0, MISO Table 1: AuxIO Pinout description 7 Antenna Performances Antenna data are reported @ 7.5GHz. Maximum gain is 5.6dBi with HPBW = 71 x 84 Pag. 5 of 9 Datasheet | Rev.1.1 LT102XK UWB Radar Module Fig. 4 Antenna Diagram and X-Z plane cut Fig. 5 Aligned View of X-Z plane Fig. 6 Antenna Gain over X-Z plane Datasheet | Rev.1.1 Pag. 6 of 9 LT102XK UWB Radar Module Fig. 7 Antenna Diagram and Y-Z plane cut Fig. 8 Aligned View of Y-Z plane 8 Restriction In accordance with Commission Decision 2000/299/CE of 6 April 2000, the device is classified as Class I, Subclass 57e Equipment using Ultra-Wideband Technology (Location tracking systems) The LT102XK is a Class I, Subclass 57e device. It is intended for indoor and in-vehicle use only. The LT102XK is sensitive to direct sun and visible/IR light. It is recommended to shield it. Pag. 7 of 9 Datasheet | Rev.1.1 LT102XK UWB Radar Module To guarantee the maximum detection distance (10m) the LT102XK must be kept at least 2m away from a 5GHz WiFi device. If the maximum range is less or equal than 5m, there is no minimum distance to 5GHz WiFi devices 9 Regulatory Information USA Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 9.1 RF exposure safety It is designed not to exceed the emission limits for exposure to radio frequency (RF) energy set by the Federal Communications Commission. 9.2 Labelling Requirements for the Host Device The host device shall be properly labelled to identify the modules within the host device. The certification label of the module shall be clearly visible at all times when installed in the host device, otherwise, the host device must be labelled to display the FCC ID of the module, preceded by the words "Contains transmitter module", or the word "Contains", or similar wording expressing the same meaning, as follows:

FCC ID: 2A7RF-LT102XK Datasheet | Rev.1.1 Pag. 8 of 9 UWB devices may not be employed for the operation of toys. Operation on-board an aircraft, a ship or a satellite is prohibited. LT102XK UWB Radar Module 9.3 Compliance of Host Devices The module has been evaluated in portable stand-alone conditions. For different operational conditions from a stand-alone modular transmitter in a host (multiple, simultaneously transmitting modules or other transmitters in a host), additional testing may be required (collocation, retesting). The modular transmitter is only FCC authorized for the specific rule parts (i.e., FCC transmitter rules) listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. The end product with an embedded module may also need to pass the FCC Part 15 unintentional emission testing requirements and be properly authorized per FCC Part 15. Pag. 9 of 9 Datasheet | Rev.1.1

Xandar Kardian Inc. 17 State Street #4000 New York, NY 10004 USA Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: 2A7RF-LT102XK Pursuant to Sections 0.457(d) and 0.459 of the Commissions Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period of insert number of days (cannot exceed 180 days) days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Block Diagrams External Photos Internal Photos Operation Description Parts List & Placement/BOM Tune-Up Procedure Schematic Diagrams Test Setup Photos Users Manual Type of Confidentiality Requested Permanent

Permanent*

Permanent Permanent Permanent Permanent

Permanent*

Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at:

https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have Permanent confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed:

Dated: 2022-07-07 Printed name: Sam Yang Title: CEO Company Name: Xandar Kardian Inc.