This reference design is intended for Passive Entry Passive Start (PEPS) car access systems that utilize Bluetooth® Low Energy (BLE) technology to determine the location of a key fob. The design exhibits how a vehicle BLE satellite node can be implemented to calculate the angle of arrival (AoA) from a BLE signal and transmit the AoA data via local interconnect network (LIN) using only a single BLE wireless microcontroller and LIN transceiver. Furthermore, the design demonstrates that accurate AoA information can be calculated using only two dipole antennas reducing the printed circuit board (PCB) solution size.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Automotive Bluetooth® Low Energy Car Access Satellite Node Reference Design (Rev. A) | Jan. 15, 2019 | |
| Application note | Bluetooth® Angle of Arrival (AoA) Antenna Design (Rev. A) | PDF | HTML | Jun. 07, 2023 |
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