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L20G20IS Datasheet(PDF) 2 Page - STMicroelectronics

Part # L20G20IS
Description  Ultra-compact two-axis gyroscope for optical image stabilization
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L20G20IS Datasheet(HTML) 2 Page - STMicroelectronics

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Contents
L20G20IS
2/29
DocID029474 Rev 2
Contents
1
Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1
System block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Mechanical and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3
Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4
SPI - serial peripheral interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3
Terminology and functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2
Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3
Data-ready interrupt and synchronous reading . . . . . . . . . . . . . . . . . . . . 12
3.4
Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4
L20G20IS filtering chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1
Internal pin status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6
Digital interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1
SPI bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1.1
SPI read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1.2
SPI write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7
Register mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8
Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.1
WHO_AM_I (00h R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.2
TEMP_OUT_L (01h R), TEMP_OUT_H (02h R) . . . . . . . . . . . . . . . . . . . 20
8.3
OUT_X_L (03h R), OUT_X_H (04h R) . . . . . . . . . . . . . . . . . . . . . . . . . . . 20



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