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Low-End Camera Monitoring System

Overview

Description

This cost-effective camera monitoring system (CMS) design leverages an automotive-grade MCU for diagnostics and an LCD video processor for video adjustment and output. The system integrates an optical sensor to measure environmental illuminance, enabling dynamic display brightness management. The MCU processes data from the light sensor to control brightness, while the LCD video processor adjusts and outputs the video signal. This ensures optimized visibility across varying ambient light conditions.

System Benefits:

  • Cost-effective CMS features an automotive MCU, video signal processor (VSP), optical sensor, and power devices.
  • Optional Automotive HD Link (AHL) supports low-cost twisted-pair cable usage.
  • Suitable for commercial and other vehicle CMS applications.

Comparison

Applications

Block Diagram

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4:3 ratioSheet.1Sheet.2Sheet.3Sheet.4CN605CN605CN605Optical SensorOptical SensorOptical SensorPTC DefrostPTC DefrostPTC DefrostEEPROMEEPROMEEPROMCockpit SoCCockpit SoCCockpit SoCBi-directionalBi-directional.23Connector Arrow+5V+5V+5VConnector Arrow.27Connector Arrow.28Connector Arrow.29Connector Arrow.30Connector Arrow.31Connector Arrow.32Connector Arrow.33+3.3V@3Amax+3.3V@3Amax+3.3V@3AmaxLabel Text 10pt.35 +3.3V@3Amax+3.3V@3Amax+3.3V@3AmaxBi-directional.37Connector 1.163Bi-directional.41Connector Arrow.42Connector Arrow.43Connector Arrow.44Connector Arrow.45Connector Arrow.46Connector 1.163.47+12V+12V+12VConnector LineConnector Arrow.51Connector 1.163.52Connector Arrow.53Bi-directional.54Connector 1.163.55Connector 1.163.56Connector Arrow.57Connector 1.163.58Connector Arrow.61 BuckBuckBuckVSPVSPVSPAHL-EncoderAHL-EncoderAHL-EncoderAHL-DecoderAHL-DecoderAHL-DecoderAHL-DecoderAHL-DecoderAHL-DecoderDisplay MonitorDisplay MonitorDisplay MonitorLED DriverLED DriverLED DriverCAN TransceiverCAN TransceiverCAN TransceiverCamera ModuleCamera ModuleCamera ModuleBuckBuckBuckLine Bi-directionalSheet.69MCUMCUMCUI2CI2CI2CGPIOGPIOGPIOI2CI2CI2CPWMPWMPWMCANCANCANBi-directional.72
Exiting Interactive Block Diagram

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