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SCA3000-D01 Datenblatt(PDF) 32 Page - VTI technologies

Teilenummer SCA3000-D01
Bauteilbeschribung  Product Family Specification
PDF  43 Pages
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Hersteller  VTI [VTI technologies]
Direct Link  http://www.vti.fi
Logo VTI - VTI technologies

SCA3000-D01 Datenblatt(HTML) 32 Page - VTI technologies

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SCA3000 Series
VTI Technologies Oy
32/ 43
www.vti.fi
Doc.Nr. 8257300A.07
Rev.A.07
7
Application information
7.1
Pin Description
SCA3000 pin numbers are presented in Figure 14 below and pin descriptions in Table 18.
Figure 13. SCA3000 sensing directions.
Figure 14. SCA3000 pin numbers.
Table 18. SCA3000 pin descriptions.
Pin #
Name
SCA3000-D01, SCA3000-E01,
SCA3000-E04
SCA3000-D02, SCA3000-E02
1
NC
Not connected
Not connected
2
XRESET
External reset, active low
External reset, active low
3
INT
Interrupt output
Interrupt output
4
CLK
Connect to ground
Connect to ground
5
DVSS
Digital ground
Digital ground
6
DVDD
Digital supply
Digital supply
7
DVIO
Digital I/O supply
Digital I/O supply
8
CSB
Chip select
Not connected
9
NC
Not connected
Not connected
10
NC
Not connected
Not connected
11
SCK_SCL
SPI serial clock (SCK)
I
2C serial clock (SCL)
12
MISO_SDA
SPI data out (MISO)
I
2C data in / out (SDA)
13
MOSI
SPI data in (MOSI)
Not connected
14
AVDD
Analog supply
Analog supply
15
AVSS
Analog ground
Analog ground
16
AVSS
Analog ground
Analog ground
17
ATSTIO
Not connected
Not connected
18
NC
Not connected
Not connected
7.2
Recommended circuit diagram
1.
Connect 100 nF SMD capacitor between each supply voltage and ground level.
2.
Connect 1 µF capacitor between each supply voltage and ground level.
3.
Use one regulator for analog and digital supply (AVDD and DVDD).
4.
Use separate regulator for digital IO supply (DVIO).
5.
Xreset is needed always in start up: when Xreset is low, raise power supplies inside
specification, then set Xreset high.
6.
INT-pin is used with output buffer as well as in Free Fall and Motion Detection mode.
7.
Serial interface (SPI or I
2C) logical '1' level is determined by DVIO supply voltage level.
Recommended circuit diagram for the SCA3000 with SPI interface is presented in Figure 15 below.



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