Acoustic vehicle alerting system (AVAS)

Products and reference designs

Acoustic vehicle alerting system (AVAS)

Block diagram

Overview

Our integrated circuits and reference designs will help you create acoustic vehicle alerting system (AVAS) designs, also known as an acoustic vehicle alerting system (AVAS), that allow you to meet government regulations and decrease your time to market.

Design requirements

Modern AVAS designs require:

  • Sufficient audio output power complying with federal regulations.
  • Compliant frequency spectrum and modulation of sound.
  • Reliable output load diagnostics in all operation modes.

Block diagram

Find products and reference designs for your system.

Acoustic vehicle alerting system (AVAS)

CAN CAN 12V supply 12V supply Ethernet Ethernet Optional audio power supply (cold crank condition) Optional audio power supply (cold crank condition) Reverse battery protection Reverse battery protection Input protection Inputprotection PMIC PMIC DC/DC converter / SBC DC/DC converter /SBC CAN CAN CAN transceiver CANtransceiver High speed interface High speed interface Ethernet transceiver Ethernettransceiver DC/DC power supply DC/DC power supply Boost converter Boost converter Memory Memory Flash / EEPROM / DDR Flash / EEPROM /DDR VESS controller VESS controller Audio application processor Audio applicationprocessor Microcontroller Microcontroller Self-diagnostics/monitoring Self-diagnostics/monitoring Audio load diagnosis Audio load diagnosis Audio amplifier Audio amplifier Analog/digital audio amplifier Analog/digital audio amplifier

Technical documentation

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Type Title Date
White paper Basic considerations for sensors in the powertrain (Rev. A) 23 Dec 2019
Technical article Enabling functionally safe and secure electric automotive powertrains using C2000™ PDF | HTML 09 Aug 2023
Technical article Three considerations for automotive powertrain safety and security PDF | HTML 06 Sep 2023
White paper 動力系統感測器的基本考量 03 Oct 2019

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