sca3000-e05pwb VTI Hamlin, sca3000-e05pwb Datasheet - Page 6

• Manufacturer Part Number: sca3000-e05pwb
• Description: Sca3000 Series 3-axis Accelerometer
• Manufacturer: VTI Hamlin

1.2.3
1.2.4
1.2.5
1.2.5.1
1.2.5.2
1.2.6
VTI Technologies Oy
www.vti.fi
Factory calibration
Supported features
Operation modes
Free-Fall Detection
Measurement
Motion Detection
Sensors are factory calibrated and the trimmed parameters are gain, offset and the frequency of
the internal oscillator. Calibration parameters will be read automatically from the internal non-
volatile memory during sensor startup.
Features supported by individual SCA3000 products are listed in Table 1 below.
Table 1. SCA3000 devices’ summary.
The SCA3000 is in normal measurement mode by default after start up. The sensor offers
acceleration information via the SPI or I
axis acceleration or all three axis acceleration depending on the application. Measurement
resolution depends on the product type (see Table 1).
Motion Detection (MD) mode is intended to be used to save system level power consumption. In
this mode, the SCA3000 activates the interrupt via the INT-pin when motion is detected. Sensitivity
levels can be configured via the SPI or I
be defined using sensitivity directions with AND / OR / mux logic. Once the interrupt has happened,
the detected direction can be read out from the corresponding status register.
Normal acceleration information is not available in MD mode.
Free-Fall Detection (FFD) is intended to be used to save system resources. This feature activates
the interrupt via the INT-pin when free-fall is detected. The minimum detectable distance depends
on the individual product. Normal acceleration information is available when the FFD is enabled.
Features
Supply
voltage
I/O voltage
Measuring
range
Resolution
Sensitivity
Output
buffer
Motion
detection
Free fall
detection
Interface
Temperatu
re output
Clock
SCA3000-D01
SCA3000-D02
2.35 V – 3.6 V
1.7 V – 3.6 V
±2 g
0.75mg / 0.04°
1333 counts/g
User enabled,
64 sampl./axis
User enabled
User enabled
SPI
I
Yes
Internal
2
C
fast mode
max 1.6 MHz (-D01) /
Doc.Nr. 8257300A.07
(-D02)
(SPI)
(I2C)
/
SCA3000-E01
SCA3000-E02
2.35 V – 3.6 V
1.7 V – 3.6 V
±3 g
1mg / 0.06°
1000 counts/g
User enabled,
64 sampl./axis
User enabled
User enabled
SPI
I
No
Internal
2
C
std mode
max 325 kHz (-E01) /
2
2
C when the master requires it. The master can acquire one
C bus for each axis. Moreover, the detection condition can
(-E02)
(SPI)
(I2C)
/
SCA3000-E04
2.35 V – 3.6 V
1.7 V – 3.6 V
±6 g
2mg / 0.11°
500 counts/g
User enabled,
64 sampl./axis
User enabled
User enabled
SPI
No
Internal
max 325 kHz
SCA3000-E05
2.35 V – 3.6 V
1.7 V – 3.6 V
±18 g
6.25mg / 0.36°
160 counts/g
User enabled,
64 sampl./axis
User enabled
User enabled
SPI
No
Internal
max 325 kHz
SCA3000 Series
Rev.A.07
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