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Technical content

Features

Applications

ÿ Minimum Component Ultrasonic Park Assist Solution ÿ Single Transceiver Architecture ÿ Programmable to transducer frequencies 40kHz to 58kHz ÿ Supports “Receive Only” Mode ÿ High Sensitivity and Low Noise Down to 0.5µVRMS ÿ Driver Power and Signal Gain Programmable ÿ Digital Filtering and Signal Processing ÿ 14 Programmable Threshold / Time Settings for Echo Envelope Evaluation ÿ One Wire I/O to Program and Receive Echo Signal ÿ Embedded EEPROM to Store Settings ÿ Automotive Supply and I/O Protection ÿ AEC-Q100 Qualification ÿ Ultrasonic Park Assist (USPA) ÿ Industrial Distance Measuring ÿ Robotics General Description The E524.03 offers ultrasonic range detection with minimum component count. In transmit mode, the IC drives a center tapped trans - former directly. Driver frequency, transmitted burst power and other parameters are user configurable and stored in embedded EEPROM via a single wire IO pin at assembly. The device features settings for short and long distance measurement. In receive mode, the echo signal is first amplified with a programmable gain amplifier and converted by an internal analog-to-digital converter. The signal is sub - sequently digitally filtered and compared. Compara - tor thresholds are adjustable via registers for defined interval lengths within a measurement period. The re- sulting signal is available at pin IO for the hosting BCU. A “Receive Only” mode enables the reception of indi - rect echos. The E524.03 interfaces with the BCU via one dedicated line. Product ID Temp. Range Package E524.03 -40°C to +85°C QFN20L4

Ordering Information

RIO_PU CSUP DSUP CTD CAIN RPU Ultrasonic-Transducer RTD E524.03 Typical Applications Circuit

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