LSM6DSV320X datasheet(35/212 Pages) STMICROELECTRONICS

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6.4

Gyroscope power modes

In the LSM6DSV320X, the gyroscope can be configured in six different operating modes: power-down mode,

sleep mode, low-power mode, high-performance mode, high-accuracy ODR mode, and ODR-triggered mode.

The operating mode selected depends on the value of the OP_MODE_G_[2:0] bits in CTRL2 (11h).

If the value of the OP_MODE_G_[2:0] bits is 000 (default), high-performance mode is valid for all ODRs (from 7.5

Hz up to 7.68 kHz).

Low-power mode is available for lower ODRs (7.5 Hz, 15 Hz, 30 Hz, 60 Hz, 120 Hz, 240 Hz) and it is enabled by

setting the OP_MODE_G_[2:0] bits to 101.

High-accuracy ODR mode is available for ODR values from 15 Hz up to 7.68 kHz and it is enabled by setting the

OP_MODE_G_[2:0] bits to 001. Refer to Section 6.5: High-accuracy ODR mode for more details.

ODR-triggered mode is available for ODR values from 15 Hz up to 7.68 kHz and it is enabled by setting the

OP_MODE_XL_[2:0] bits to 011. Refer to Section 6.6: ODR-triggered mode for more details

6.5

High-accuracy ODR mode

High-accuracy ODR (HAODR) mode can be enabled to reduce the part-to-part output data rate variation. It

supports both the low-g, high-g accelerometers and the gyroscope. When this mode is used for one sensor

(accelerometers or gyroscope), the other sensor also has to be configured in high-accuracy ODR (HAODR)

mode.

The main high-accuracy ODR features are:

•

Noise level is aligned with high-performance mode

•

The power consumption in HAODR mode depends on the selected ODR and on the enabled sensors. As

an example, at ODR = 960 Hz in combo mode (low-g accelerometer + gyroscope) it increases 20 μA

(typical) compared to high-performance mode. Refer to the application note for more details.

•

The UI channel bandwidth can be selected through the gyroscope LPF1 and accelerometer HPF/LPF2

filters.

•

When HAODR mode is enabled, it is applied to the UI low-g, high-g accelerometers, UI gyroscope, EIS

gyroscope, and temperature. It is not applied to the OIS accelerometer/gyroscope channels.

Note:

HAODR mode has to be enabled / disabled when the device is in power-down mode.

When HAODR mode is enabled, four different sets of ODRs are supported based on the configuration of the

HAODR_SEL_[1:0] bitfield in the HAODR_CFG (62h) register, as shown in the table below.

Note:

High-accuracy ODR mode is not compatible with the activity/inactivity functionality (motion/stationary can be

used).

Table 22. Accelerometer and gyroscope ODR selection in high-accuracy ODR mode

ODR_XL_[3:0]

ODR_G_[3:0]

ODR [Hz]

HAODR_SEL_[1:0] = 00

ODR [Hz]

HAODR_SEL_[1:0] = 01

ODR [Hz]

HAODR_SEL_[1:0] = 10

ODR [Hz]

HAODR_SEL_[1:0] = 11

0000

Power-down

0001

Reserved

0010

Reserved

0011

15.625

12.5

0100

31.25

0101

62.5

0110

120

125

100

104

0111

240

250

200

208

1000

480

500

400

417

1001

960

1000

800

833

1010

1920

2000

1600

1667

1011

3840

4000

3200

3333

1100

7680

8000

6400

6667

Others

Reserved

LSM6DSV320X

Functionality

DS14623 - Rev 1

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LSM6DSV320X Datasheet(PDF) 35 Page - STMicroelectronics

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