SCA21X0 VTI [VTI technologies], SCA21X0 Datasheet - Page 7

• Manufacturer Part Number: SCA21X0
• Description: VTI Automotive Digital Accelerometer Platform
• Manufacturer: VTI [VTI technologies]

1.4.4
1.4.5
1.4.6
1.4.7
1.4.8
1.4.9
1.4.10 Power supply interface
1.4.11 Factory calibration
VTI Technologies Oy
www.vti.fi
Analog to digital conversion
SPI
Signal conditioning and filtering
Temperature measurement
Memory
Self diagnostics
Analog voltage information is amplified and filtered and converted into digital information for signal
processing inside the ASIC.
The block filters and conditions the measurement information needed for the application
The accelerometers contain a temperature sensor for temperature compensation purposes and for
use in the application.
Factory programmed calibration values are stored in a non-volatile memory
SPI interface is a simple four wire interface for communication between the component and the
application micro controller.
The VTI Automotive Digital Platform contains several enhanced diagnostics features to allow timely
and robust failure detection.
The products are equipped with separate power and ground pins for analog and digital functionality
to allow high accuracy measurement.
VTI Automotive Digital Platform accelerometers are factory calibrated. No separate calibration is
required in the application. Trimmed parameters during production include sensitivity, offset and
frequency response. Calibration parameters are stored during the manufacturing of the part inside
a non-volatile memory. The parameters are read automatically from the internal non-volatile
memory during the startup of the sensor after power on.
Doc. Nr. 82 694 00 C
SCA8X0/21X0/3100 Series
7/35