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Phone as a key (PaaK)

Products and reference designs
Block diagram

Phone as a key (PaaK)

Block diagram

Overview

Our integrated circuits and reference designs for phone-as-a-key (PaaK) systems help you develop accurate localization techniques using Bluetooth® Low Energy to enable digital key capabilities on a smart phone for passive entry and passive start functionality.

Design requirements

PaaK designs require:

  • Optimized power and range.
  • Secure relay attack prevention using Bluetooth Low Energy.
  • Achievement of accurate localization using Bluetooth Low Energy while minimizing number of nodes.

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Block diagram

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Paak module

PaaK BLE satellite module

PaaK backup keyfob

Technical documentation

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Type Title Date
Application note Bluetooth® Angle of Arrival (AoA) Antenna Design (Rev. A) PDF | HTML Jun 7, 2023
Technical article Exploring connectivity trends for Bluetooth® Low Energy in the car PDF | HTML Feb 19, 2020
Technical article How PEPS technology is opening the doors to the evolution of car access systems PDF | HTML Jul 23, 2019
Technical article Bluetooth® Low Energy shifts gears for car access PDF | HTML Jul 15, 2019
Application note Measuring CC13xx and CC26xx current consumption (Rev. D) PDF | HTML Jan 10, 2019
Application note 2.4-GHz Inverted F Antenna (Rev. D) Jan 7, 2019
Application note Implementing a Pairwise Key Mechanism for the 6LoWPAN Mesh TI Designs Sep 25, 2018
Technical article Smart Wi-Fi® locks will soon open many doors PDF | HTML Oct 18, 2017
Application note Designing High Performance, Low-EMI, Automotive Power Supplies Sep 30, 2017
More literature Fundamentals of designing with LDOs in auto battery direct connect applications Feb 27, 2017
White paper Simplify CAN bus implementations with chokeless transceivers Mar 24, 2016

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