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Passive entry passive start (PEPS)

Products and reference designs
Block diagram

Passive entry passive start (PEPS)

Block diagram

Overview

Our integrated circuits and reference designs help you design passive entry passive start (PEPS) modules and key fobs that are secure and compact while reducing system power consumption and optimizing radio frequency (RF) and vehicle communication latencies.

Design requirements

PEPS automotive systems require:

  • Optimized power and range.
  • Secure relay attack prevention using Bluetooth Low Energy (BLE).
  • Achieve accurate localization using BLE while minimizing the number of nodes.

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Block diagram

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PEPS BLE satellite module

PEPS smart key module

PEPS keyfob

Technical documentation

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Top documentation Type Title Format options 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 Adding CAN nodes in Bluetooth® Low Energy PEPS systems PDF | HTML Jun 11, 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
White paper Evolution vs. revolution: the building blocks of automotive body electronics Mar 28, 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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