An ultrasonic SoC contains Rx and Tx channels to interface with the ultrasonic transducer. The SoC uses time-of-flight to calculate level and is responsible for transmitting and receiving ultrasonic waves.
An external RTD connection to the AFE measures fluid temperature for speed of sound compensation. A driver IC helps prevent shoot through and can be turned off once the Tx pulses have been transmitted.
These integrated circuits and reference designs can help to innovate and differentiate powertrain fluid concentration sensors subsystems.
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