The E524.03 offers ultrasonic range detection with minimum component count. In transmit mode, the IC drives a center tapped transformer 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 subsequently digitally filtered and compared. Comparator thresholds are adjustable via registers for defined interval lengths within a measurement period. The resulting signal is available via the bi-directional supply line for the hosting BCU. A “Receive Only” mode enables the reception of indirect echos supports. To minimize wires, the E524.03 communication over a single power supply line.
|Part No.||Temp. Range||Package||Order No.|
|E524.03||-40°C to +105°C||QFN20L4||E52403A52C|
|Part No.||Description||Board type||Order No.|
|E524.0x||"Ultrasonic Park Assist" Demonstrator with Demonstration Software||Master Board||K5240X-0001|
|E524.03||Ultrasonic Sensor Board||Sensor Board||K52403-0002|