SNS409 is a single chip solution for automotive ultrasonic sensor module application with a very small package. Based on TOF measurement it can provide the obstacle distance. Per excellent low noise performance and stable high range gain adjustable features, it could support short distance to 15cm and long distance to 5m with perfect matching circuit with the specific transducer for the high performance required system like APA and PAS. It has auto gain and auto threshold functions which could support customers a short time to market module. These functions could save a lot of calibration effort.

• Single chip solution

• Measure distance 0.15~5m (with perfect matching circuit)

• Operation voltage: 6V~18V

• Single wire communication interface

• Transducer frequency: 30k~83kHz

• Programmable driver current: 168~354mA

• Programmable driver pulse number: 4~32pulse

• Programmable receiver analog gain: 39.2~56dB

• Programmable receiver digital gain: 0~47.89dB

• Auto gain control

• Auto threshold control

• Echo peak detection

• Diagnostic:

• Noise detection

• Over voltage/Under voltage

• Resonance frequency out of range

• 1st Echo height

• Integrated temperature sensor

• Support JTAG test mode

• EEPROM for long lifecycle operation

• AEC-Q100 qualified

• Package: QFN20-4x4