Steering Angle Measurement
Silicon Labs C8051F5xx highly integrated automotive microcontrollers can provide steering angle position from an anisotropic magneto resistance (AMR) sensor input via a high-speed CAN bus. In this application, calibration measurements are provided and then the full range of the ADC is maximized with the variable attenuation feature for each sensor. An integrated 0.5% oscillator and 1.8 V to 5.25 V regulator are included as well.