Automotive Bluetooth® Low Energy car access satellite node reference design
Description
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.
Features
- Measure AoA using BLE with only 2 dipole antennasShare BLE connection information: AoA and RSSI information via LINSmall 45.72 mm × 76.2 mm (1.9 × 3.0") PCB solution sizeLow-power sleep mode with remote wake over LIN DC input voltages from 4.65 V to 40 V and load dump voltages up to 45 VCompatible with TI's Real Time Locationing System (RTLS) software toolbox for triangulation and trilateration of a BLE key fob"
Applications
- Passive entry passive start (PEPS)
- Phone as a key (PaaK)
Product Categories
- Power management