Telematics control unit

Products and reference designs

Telematics control unit

Block diagram


Telematics control unit (TCU) is the embedded onboard system that controls wireless tracking, diagnostics and communication to and from the vehicle. These systems can be used in eCall crash notification, electronic tolling and vehicle tracking, among many others. Our range of products empowers you to create TCU designs that enable higher bandwidth, increased integration and smaller solution sizes.

Design requirements

The benefits of TCU include:

  • Increasing amount of connectivity to the vehicle by adding more modems and processing to support communication from the car to the cloud, infrastructure or other vehicles.
  • Antenna power optimization with better current sensing, diagnostics and low noise.
  • Reliable, efficient, and faster data transmission enabling communication to other systems in the vehicle.

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Block diagram

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Technical documentation

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Type Title Date
Application note Automotive Diagnostics Using TAS2505-Q1 (Rev. C) PDF | HTML 29 Jun 2022
Circuit design Non-inverting microphone pre-amplifier circuit 26 Sep 2023
User guide MSP430F2xx, MSP430G2xx Family User's Guide (Rev. K) PDF | HTML 25 Aug 2022
Application brief Active Filtering in Automotive Audio Applications (Rev. A) 23 Aug 2019
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 21 May 2021
Technical article Where we’re going with the connected car PDF | HTML 19 Jun 2023
Technical article How to save space and BOM costs by sharing microphones across automotive subsystem PDF | HTML 18 Jul 2023
User guide Single-Supply Electret Microphone Preamplifier Reference Design 18 Feb 2015
White paper Designing infotainment systems that are interactive not distractive 15 Mar 2019
Technical article Automotive gateways: the bridge between communication domains PDF | HTML 14 Aug 2023
Technical article There are more ways than you think to reduce conducted EMI PDF | HTML 14 Aug 2023
Technical article Four design considerations for telematics hardware in the connected car PDF | HTML 11 Sep 2023
Technical article How connected vehicles leverage data: 3 common questions PDF | HTML 11 Sep 2023
Application note Implementing Voltage References and Supervisors Into Your Traction Inverter Desi 11 May 2022
Application note Achieving Low IQ Voltage Supervision in Automotive, Wide-Vin Applications 11 May 2022
Application brief 12-V Battery Monitoring in an Automotive Module (Rev. A) PDF | HTML 10 May 2022
Technical article Securing the Scene PDF | HTML 06 Sep 2023
Technical article Dark-current measurement in automotive telematics applications PDF | HTML 01 Sep 2023

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