ST L3G4200D User Manual
ultra-stable three-axis digital output gyroscope
Features
■ Three selectable full scales (250/500/2000
dps)
2
■ I
C/SPI digital output interface
■ 16 bit-rate value data output
■ 8-bit temperature data output
■ Two digital output lines (interrupt and data
ready)
■ Integrated low- and high-pass filters with user-
selectable bandwidth
■ Ultra-stable over temperature and time
■ Wide supply voltage: 2.4 V to 3.6 V
■ Low voltage-compatible IOs (1.8 V)
■ Embedded power-down and sleep mode
■ Embedded temperature sensor
■ Embedded FIFO
■ High shock survivability
■ Extended operating temperature range (-40 °C
to +85 °C)
■ ECOPACK
Applications
■ Gaming and virtual reality input devices
■ Motion control with MMI (man-machine
interface)
■ GPS navigation systems
■ Appliances and robotics
®
RoHS and “Green” compliant
L3G4200D
MEMS motion sensor:
Preliminary data
LGA-16
Description
The L3G4200D is a low-power three-axis angular
rate sensor able to provide unprecedented
stablility of zero rate level and sensitivity over
temperature and time. It includes a sensing
element and an IC interface capable of providing
the measured angular rate to the external world
through a digital interface (I
The sensing element is manufactured using a
dedicated micro-machining process developed by
STMicroelectronics to produce inertial sensors
and actuators on silicon wafers.
The IC interface is manufactured using a CMOS
process that allows a high level of integration to
design a dedicated circuit which is trimmed to
better match the sensing element characteristics.
The L3G4200D has a full scale of ±250/±500/
±2000 dps and is capable of measuring rates with
a user-selectable bandwidth.
The L3G4200D is available in a plastic land grid
array (LGA) package and can operate within a
temperature range of -40 °C to +85 °C.
(4x4x1.1 mm)
2
C/SPI).
Table 1. Device summary
Order code Temperature range (°C) Package Packing
L3G4200D -40 to +85 LGA-16 (4x4x1.1 mm) Tray
L3G4200DTR -40 to +85 LGA-16 (4x4x1.1 mm) Tape and reel
December 2010 Doc ID 17116 Rev 3 1/42
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
www.st.com
42
L3G4200D
Contents
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Mechanical and electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Temperature sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.1 SPI - serial peripheral interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.2 I2C - inter IC control interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.1 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.2 Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.3 Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.7 Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Main digital blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2 FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.1 Bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.2 FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.3 Stream mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.4 Bypass-to-stream mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2.5 Stream-to-FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2.6 Retrieve data from FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5 Digital interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1 I2C serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1.1 I2C operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2 SPI bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2.1 SPI read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2/42 Doc ID 17116 Rev 3
L3G4200D
5.2.2 SPI write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.3 SPI read in 3-wire mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6 Output register mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7 Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.1 WHO_AM_I (0Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.2 CTRL_REG1 (20h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.3 CTRL_REG2 (21h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.4 CTRL_REG3 (22h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.5 CTRL_REG4 (23h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.6 CTRL_REG5 (24h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.7 REFERENCE/DATACAPTURE (25h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.8 OUT_TEMP (26h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.9 STATUS_REG (27h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.10 OUT_X_L (28h), OUT_X_H (29h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.11 OUT_Y_L (2Ah), OUT_Y_H (2Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.12 OUT_Z_L (2Ch), OUT_Z_H (2Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.13 FIFO_CTRL_REG (2Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.14 FIFO_SRC_REG (2Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.15 INT1_CFG (30h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.16 INT1_SRC (31h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.17 INT1_THS_XH (32h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.18 INT1_THS_XL (33h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.19 INT1_THS_YH (34h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.20 INT1_THS_YL (35h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.21 INT1_THS_ZH (36h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.22 INT1_THS_ZL (37h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.23 INT1_DURATION (38h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Doc ID 17116 Rev 3 3/42
List of tables L3G4200D
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3. Filter values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4. Mechanical characteristics @ Vdd = 3.0 V, T = 25 °C, unless otherwise noted
Table 5. Electrical characteristics @ Vdd =3.0 V, T=25 °C, unless otherwise noted
Table 6. Temp. sensor characteristics @ Vdd =3.0 V, T=25 °C, unless otherwise noted
Table 7. SPI slave timing values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 8. I2C slave timing values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 9. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 10. PLL low-pass filter component values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 11. Serial interface pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 12. I2C terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 13. SAD+read/write patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 14. Transfer when master is writing one byte to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Table 15. Transfer when master is writing multiple bytes to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 16. Transfer when master is receiving (reading) one byte of data from slave . . . . . . . . . . . . . 23
Table 17. Transfer when master is receiving (reading) multiple bytes of data from slave . . . . . . . . . 23
Table 18. Register address map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 19. WHO_AM_I register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 20. CTRL_REG1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 21. CTRL_REG1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 22. DR and BW configuration setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 23. Power mode selection configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 24. CTRL_REG2 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 25. CTRL_REG2 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 26. High pass filter mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 27. High pass filter cut off frecuency configuration [Hz] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 28. CTRL_REG1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 29. CTRL_REG3 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 30. CTRL_REG4 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 31. CTRL_REG4 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 32. Self test mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 33. CTRL_REG5 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 34. CTRL_REG5 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 35. Out_Sel configuration setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 36. INT_SEL configuration setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 37. REFERENCE register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 38. REFERENCE register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 39. OUT_TEMP register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 40. OUT_TEMP register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 41. STATUS_REG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 42. STATUS_REG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 43. REFERENCE register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 44. REFERENCE register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 45. FIFO mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 46. FIFO_SRC register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 47. FIFO_SRC register description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 48. INT1_CFG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
. . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . 11
. . . . . . . . . . . 11
4/42 Doc ID 17116 Rev 3
L3G4200D List of tables
Table 49. INT1_CFG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 50. INT1_SRC register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 51. INT1_SRC description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 52. INT1_THS_XH register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 53. INT1_THS_XH description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 54. INT1_THS_XL register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 55. INT1_THS_XL description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 56. INT1_THS_YH register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 57. INT1_THS_YH description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 58. INT1_THS_YL register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 59. INT1_THS_YL description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 60. INT1_THS_ZH register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 61. INT1_THS_ZH description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 62. INT1_THS_ZL register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 63. INT1_THS_ZL description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 64. INT1_DURATION register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 65. INT1_DURATION description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 66. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Doc ID 17116 Rev 3 5/42
List of figures L3G4200D
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2. Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3. L3G4200D external low-pass filter values
Figure 4. SPI slave timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5. I2C slave timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 7. Bypass mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 8. FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 9. Stream mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 10. Bypass-to-stream mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 11. Trigger stream mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 12. L3G4200D electrical connections and external component values . . . . . . . . . . . . . . . . . . 20
Figure 13. Read and write protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 14. SPI read protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 15. Multiple byte SPI read protocol (2-byte example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 16. SPI write protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 17. Multiple byte SPI write protocol (2-byte example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 18. SPI read protocol in 3-wire mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 19. INT1_Sel and Out_Sel configuration block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 20. Wait disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 21. Wait enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 22. LGA-16: mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6/42 Doc ID 17116 Rev 3
L3G4200D Block diagram and pin description
1 Block diagram and pin description
Figure 1. Block diagram
+
Ω
x,y,z
REFERENCE
TRIMMING
CIRCUITS
X+
Y+
Z+
Z-
Y-
X-
CHARGE
AMP
M
U
X
DRIVING MASS
MIXER
Feedback loop
FIFO
LOW-PASS
FILTER
T
E
M
S
P
E
E
N
R
S
A
O
T
R
U
R
E
CLOCK
&
PHASE GENERATOR
F
D
I
I
A
D
C
1
A
D
C
2
L
G
T
I
E
T
R
A
I
L
N
G
CONTROL LOGIC
INTERRUPT GEN.
&
I2C
SPI
CS
SCL/SPC
SDA/SDO/SDI
SDO
INT1
DRDY/INT2
The vibration of the structure is maintained by drive circuitry in a feedback loop. The sensing
signal is filtered and appears as a digital signal at the output.
1.1 Pin description
Figure 2. Pin connection
+Ω
1
(TOP VIEW)
DIRECTIONS OF THE
DETECTABLE
ANGULAR RATES
AM07225v1
PLLFILT
Z
X
+Ω
Y
RES
RES
GND
13 16
12
BOTTOM
RES
Vdd
1
Vdd_IO
SCL/SPC
VIEW
+Ω
RES
RES
X
8
INT
RES
5
DRDY/INT2
CS
SDA/SDI/SDO
49
SDO/SA0
AM07226v1
Doc ID 17116 Rev 3 7/42
Block diagram and pin description L3G4200D
Table 2. Pin description
Pin# Name Function
1 Vdd_IO Power supply for I/O pins
2
SCL
SPC
SDA
3
SDI
SDO
4
SDO
SA0
5CS
6 DRDY/INT2 Data ready/FIFO interrupt
7 INT1 Programmable interrupt
8 Reserved Connect to GND
9 Reserved Connect to GND
10 Reserved Connect to GND
11 Reserved Connect to GND
2
I
C serial clock (SCL)
SPI serial port clock (SPC)
2
C serial data (SDA)
I
SPI serial data input (SDI)
3-wire interface serial data output (SDO)
SPI serial data output (SDO)
2
C least significant bit of the device address (SA0)
I
SPI enable
2
C/SPI mode selection (1:SPI idle mode / I2C communication
I
enabled; 0: SPI communication mode / I2C disabled)
12 Reserved Connect to GND
13 GND 0 V supply
14 PLLFILT Phase-locked loop filter (see Figure 3)
15 Reserved Connect to Vdd
16 Vdd Power supply
Figure 3. L3G4200D external low-pass filter values
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.QYRCUUHKNVGT
VQRKP
%
4%
(a)
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#/X
a. Pin 14 PLLFILT maximum voltage level is equal to Vdd.
8/42 Doc ID 17116 Rev 3
L3G4200D Block diagram and pin description
Table 3. Filter values
Parameter Typical value
C1 10 nF
C2 470 nF
R2 10 kΩ
Doc ID 17116 Rev 3 9/42
Mechanical and electrical characteristics L3G4200D
2 Mechanical and electrical characteristics
2.1 Mechanical characteristics
Table 4. Mechanical characteristics @ Vdd = 3.0 V, T = 25 °C, unless otherwise noted
Symbol Parameter Test condition Min. Typ.
(2)
Max. Unit
±250
FS Measurement range User-selectable
±2000
FS = 250 dps 8.75
So Sensitivity
FS = 2000 dps 70
SoDr
Sensitivity change vs.
temperature
From -40 °C to +85 °C ±2 %
FS = 250 dps ±10
DVoff Digital zero-rate level
FS = 2000 dps ±75
OffDr
Zero-rate level change
vs. temperature
NL Non linearity
(3)
(4)
FS = 250 dps ±0.03 dps/°C
FS = 2000 dps ±0.04 dps/°C
Best fit straight line 0.2 % FS
FS = 250 dps 130
DST Self-test output change
FS = 2000 dps 530
Rn Rate noise density BW = 50 Hz 0.03
ODR Digital output data rate
Top
1. The product is factory calibrated at 3.0 V. The operational power supply range is specified in Table 5.
2. Typical specifications are not guaranteed.
3. Min/max values have been estimated based on the measurements of the current gyros in production.
4. Guaranteed by design.
Operating temperature
range
-40 +85 °C
100/200/
400/800
(1)
dps±500
mdps/digitFS = 500 dps 17.50
dpsFS = 500 dps ±15
dpsFS = 500 dps 200
dps/
sqrt(Hz)
Hz
10/42 Doc ID 17116 Rev 3
L3G4200D Mechanical and electrical characteristics
2.2 Electrical characteristics
Table 5. Electrical characteristics @ Vdd =3.0 V, T=25 °C, unless otherwise noted
Symbol Parameter Test condition Min. Typ.
(2)
(1)
Max. Unit
Vdd Supply voltage 2.4 3.0 3.6 V
Vdd_IO I/O pins supply voltage
(3)
1.71 Vdd+0.1 V
Idd Supply current 6.1 mA
IddSL
IddPdn
To p
1. The product is factory calibrated at 3.0 V.
2. Typical specifications are not guaranteed.
3. It is possible to remove Vdd maintaining Vdd_IO without blocking the communication busses, in this condition the
measurement chain is powered off.
4. Sleep mode introduces a faster turn-on time compared to power-down mode.
Supply current
in sleep mode
(4)
Supply current in
power-down mode
Operating temperature
range
Selectable by digital
interface
Selectable by digital
interface
1.5 mA
5µA
-40 +85 °C
2.3 Temperature sensor characteristics
Table 6. Temp. sensor characteristics @ Vdd =3.0 V, T=25 °C, unless otherwise noted
Symbol Parameter Test condition Min. Typ.
Temperature sensor
TSDr
output change vs.
temperature
TODR Temperature refresh rate 1 Hz
To p
1. The product is factory calibrated at 3.0 V.
2. Typical specifications are not guaranteed.
Operating temperature
range
-40 +85 °C
(2)
Max. Unit
-1 °C/digit
(1)
Doc ID 17116 Rev 3 11/42
Mechanical and electrical characteristics L3G4200D
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2.4 Communication interface characteristics
2.4.1 SPI - serial peripheral interface
Subject to general operating conditions for Vdd and Top.
Table 7. SPI slave timing values
(1)
Val ue
Symbol Parameter
Min. Max.
tc(SPC) SPI clock cycle 100 ns
fc(SPC) SPI clock frequency 10 MHz
tsu(CS) CS setup time 5
th(CS) CS hold time 8
tsu(SI) SDI input setup time 5
th(SI) SDI input hold time 15
tv(SO) SDO valid output time 50
th(SO) SDO output hold time 6
tdis(SO) SDO output disable time 50
Unit
ns
1. Values are guaranteed at 10 MHz clock frequency for SPI with both 4 and 3 wires, based on characterization results; not
tested in production.
K6,
(b)
Y62
F63&
K62
K&6
/6%,1
GLV62
/6%287
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Figure 4. SPI slave timing diagram
&6
VX&6
63&
VX6,
6',
6'2
06%,1
06%287
b. Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both input and output ports.
12/42 Doc ID 17116 Rev 3
L3G4200D Mechanical and electrical characteristics
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2.4.2 I2C - inter IC control interface
Subject to general operating conditions for Vdd and Top.
Table 8. I2C slave timing values
Symbol Parameter
I2C standard mode
(1)
I2C fast mode
Min Max Min Max
(1)
Unit
f
(SCL)
t
w(SCLL)
t
w(SCLH)
t
su(SDA)
t
h(SDA)
t
r(SDA) tr(SCL)
t
f(SDA) tf(SCL)
t
h(ST)
t
su(SR)
t
su(SP)
t
w(SP:SR)
1. Data based on standard I2C protocol requirement; not tested in production.
2. Cb = total capacitance of one bus line, in pF.
Figure 5. I
SCL clock frequency 0 100 0 400 kHz
SCL clock low time 4.7 1.3
SCL clock high time 4.0 0.6
SDA setup time 250 100 ns
SDA data hold time 0 3.45 0 0.9 µs
SDA and SCL rise time 1000
SDA and SCL fall time 300
START condition hold time 4 0.6
Repeated START condition
setup time
4.7 0.6
STOP condition setup time 4 0.6
Bus free time between STOP
and START condition
2
C slave timing diagram
67$57
(c)
4.7 1.3
20 + 0.1C
20 + 0.1C
µs
(2)
b
(2)
b
300
ns
300
µs
5(3($7('
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6'$
I6'$
U6'$
VX6'$
K6'$
6&/
Z6&//
K67
c. Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports.
Z6&/+
U6&/
I6&/
Doc ID 17116 Rev 3 13/42
VX65
VX63
Z6365
67$57
6723
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