Phone as a key (PaaK)

Products and reference designs

Phone as a key (PaaK)

Block diagram


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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