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ICM42605 v1.7版本数据手册
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ICM42605是一款由InvenSense公司生产的高性能6轴运动传感器,它结合了3轴陀螺仪和3轴加速度计,能够测量物体的旋转和加速度。该传感器采用了InvenSense公司的MEMS技术,具有高精度、低功耗和稳定性等特点,广泛应用于智能手机、平板电脑、智能手表、健身追踪器、游戏控制器等消费电子产品中。 ICM42605采用数字接口,支持I2C和SPI通信协议,可输出高精度的运动数据,包括角速度、线性加速度、温度等。它还具有自校准功能,在运动和温度变化时能够自动校准,提高了传感器的精度和稳定性。此外,该传感器还支持多种工作模式和低功耗模式,可满足不同应用场景的需求。 总之,ICM42605是一款高性能、低功耗、稳定可靠的6轴运动传感器,具有广泛的应用前景。
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ICM-42605 Datasheet
Premium Performance 6-Axis MotionTracking
TM
IMU
InvenSense Inc. reserves the right to change specifications and
information herein without notice unless the product is in mass
production and the datasheet has been designated by InvenSense in
writing as subject to a specified Product / Process Change Notification
Method regulation.
InvenSense, a TDK Group Company
1745 Technology Drive, San Jose, CA 95110 U.S.A
+1(408) 988–7339
invensense.tdk.com
Document Number: DS-000292
Revision: 1.7
Rev. Date: 09/12/2022
ICM-42605 HIGHLIGHTS
The ICM-42605 is a 6-axis MEMS MotionTracking
device that combines a 3-axis gyroscope and a
3-axis accelerometer. It has a configurable host
interface that supports I3C
SM
, I
2
C and SPI serial
communication, features a 2 kB FIFO and 2
programmable interrupts with ultra-low-power
wake-on-motion support to minimize system
power consumption.
The ICM-42605 supports the lowest gyro and
accel sensor noise in this IMU class, and has the
highest stability against temperature, shock (up
to 20,000g) or SMT/bend induced offset as well
as immunity against out-of-band vibration
induced noise.
Other industry-leading features include
InvenSense on-chip APEX Motion Processing
engine for gesture recognition, activity
classification, and pedometer, along with
programmable digital filters, and an embedded
temperature sensor.
The device supports a VDD operating range of
1.71V to 3.6V, and a separate digital IO supply,
VDDIO from 1.71V to 3.6V.
BLOCK DIAGRAM
ICM-42605 FEATURES
• Gyroscope Noise: 3.8 mdps/Hz &
Accelerometer Noise: 70 µg/Hz
o Low-Noise mode 6-axis current
consumption of 0.65 mA
• User selectable Gyro Full-scale range (dps):
± 15.2/31.2/62.5/125/250/500/1000/2000
• User selectable Accelerometer Full-scale
range (g): ± 2/4/8/16
• User-programmable digital filters for gyro,
accel, and temp sensor
• APEX Motion Functions:
o Pedometer, Tilt Detection, Tap Detection
o Wake on Motion, Raise to Wake/Sleep,
Significant Motion Detection
• Host interface: 12.5 MHz I3C
SM
, 1 MHz I
2
C,
24 MHz SPI
APPLICATIONS
• Smartphones, Computers, Tablets
• Smart Watches and Fitness Trackers
• Augmented & Virtual Reality Headsets and
Controllers
• Game Controllers
• IoT Applications
• Drones and Robotics
ORDERING INFORMATION
PART
TEMP RANGE
PACKAGE
ICM-42605†
−40°C to +85°C
2.5x3mm 14-Pin
LGA
†Denotes RoHS and Green-Compliant Package
TDK-INVENSENSE SENSORS FOR SMARTPHONE, MOBILE & IOT APPLICATIONS
Parameter
ICM-40607
Sensorhub
ICM-42605
Sensorhub
ICM-42686-P
Handheld Action
ICM-42688-P
HMD & Robotics
GYRO Noise (mdps/rt-Hz)
7
3.8
5.3
2.8
GYRO Offset Temp Stability (mdps/°C)
±30
±20
±10
±5
GYRO Range & Resolution
±2000dps; 16-bits
±2000dps; 16-bits
±4000dps; 16/19-bits
±2000dps; 16/19-bits
ACCEL Noise (µg/rt-Hz)
110
70
70
AXY: 65; AZ: 70
ACCEL Range & Resolution
±16g; 16-bits
±16g; 16-bits
±32g; 16/18-bits
±16g; 16/18-bits
ODR & Sample Synch
8kHz; No RTC
8kHz; No RTC
32kHz; RTC
32kHz; RTC
ICM-42605
Page 2 of 106
Document Number: DS-000292
Revision: 1.7
TABLE OF CONTENTS
ICM-42605 Highlights .......................................................................................................................................... 1
Block Diagram ...................................................................................................................................................... 1
ICM-42605 Features ............................................................................................................................................ 1
Applications ......................................................................................................................................................... 1
Ordering Information ........................................................................................................................................... 1
TDK-Invensense Sensors for Smartphone, Mobile & IoT Applications ................................................................ 1
Table of Figures ............................................................................................................................................................... 8
Table of Tables ................................................................................................................................................................ 8
1 Introduction ......................................................................................................................................................... 9
1.1 Purpose and Scope .................................................................................................................................... 9
1.2 Product Overview...................................................................................................................................... 9
1.3 Applications ............................................................................................................................................... 9
2 Features ............................................................................................................................................................. 10
2.1 Gyroscope Features ................................................................................................................................ 10
2.2 Accelerometer Features .......................................................................................................................... 10
2.3 Motion Features ...................................................................................................................................... 10
2.4 Additional Features ................................................................................................................................. 10
3 Electrical Characteristics .................................................................................................................................... 11
3.1 Gyroscope Specifications ........................................................................................................................ 11
3.2 Accelerometer Specifications .................................................................................................................. 12
3.3 Electrical Specifications ........................................................................................................................... 13
3.4 I
2
C Timing Characterization ..................................................................................................................... 15
3.5 SPI Timing Characterization – 4-Wire SPI Mode ..................................................................................... 16
3.6 SPI Timing Characterization – 3-Wire SPI Mode ..................................................................................... 17
3.7 Absolute Maximum Ratings .................................................................................................................... 18
4 Applications Information ................................................................................................................................... 19
4.1 Pin Out Diagram and Signal Description ................................................................................................. 19
4.2 Typical Operating Circuit ......................................................................................................................... 20
4.3 Bill of Materials for External Components .............................................................................................. 21
4.4 System Block Diagram ............................................................................................................................. 22
4.5 Overview ................................................................................................................................................. 22
4.6 Three-Axis MEMS Gyroscope with 16-bit ADCs and Signal Conditioning ............................................... 22
4.7 Three-Axis MEMS Accelerometer with 16-bit ADCs and Signal Conditioning ......................................... 22
4.8 I3C
SM
, I
2
C and SPI Host Interface ............................................................................................................. 22
4.9 Self-Test................................................................................................................................................... 22
4.10 Clocking ............................................................................................................................................... 23
4.11 Sensor Data Registers ......................................................................................................................... 23
4.12 Interrupts ............................................................................................................................................ 23
4.13 Digital-Output Temperature Sensor ................................................................................................... 23
ICM-42605
Page 3 of 106
Document Number: DS-000292
Revision: 1.7
4.14 Bias and LDOs ..................................................................................................................................... 23
4.15 Charge Pump ...................................................................................................................................... 23
4.16 Standard Power Modes ...................................................................................................................... 24
5 Signal Path ......................................................................................................................................................... 25
5.1 Summary of Parameters Used to Configure the Signal Path .................................................................. 25
5.2 Notch Filter ............................................................................................................................................. 25
5.3 Anti-Alias Filter ........................................................................................................................................ 27
5.4 User Programmable Offset ..................................................................................................................... 29
5.5 UI Filter Block .......................................................................................................................................... 29
5.6 ODR And FSR Selection ........................................................................................................................... 33
6 FIFO .................................................................................................................................................................... 35
6.1 Packet Structure ...................................................................................................................................... 35
6.2 FIFO Header ............................................................................................................................................ 36
6.3 Maximum FIFO Storage ........................................................................................................................... 37
6.4 FIFO Configuration Registers ................................................................................................................... 37
7 Programmable Interrupts .................................................................................................................................. 39
8 APEX Motion Functions ..................................................................................................................................... 40
8.1 APEX ODR Support .................................................................................................................................. 40
8.2 DMP Power Save Mode .......................................................................................................................... 41
8.3 Pedometer Programming ........................................................................................................................ 41
8.4 Tilt Detection Programming .................................................................................................................... 42
8.5 Raise To Wake/Sleep Programming ........................................................................................................ 42
8.6 Tap Detection Programming ................................................................................................................... 43
8.7 Wake on Motion Programming ............................................................................................................... 44
8.8 Significant Motion Detection Programming ........................................................................................... 44
9 Digital Interface ................................................................................................................................................. 46
9.1 I3C
SM
, I
2
C and SPI Serial Interfaces .......................................................................................................... 46
9.2 I3C
SM
Interface ........................................................................................................................................ 46
9.3 I
2
C Interface ............................................................................................................................................. 46
9.4 I
2
C Communications Protocol ................................................................................................................. 46
9.5 I
2
C Terms ................................................................................................................................................. 49
9.6 SPI Interface ............................................................................................................................................ 50
10 Assembly ............................................................................................................................................................ 51
10.1 Orientation of Axes ............................................................................................................................. 51
10.2 Package Dimensions ........................................................................................................................... 52
11 Part Number Package Marking .......................................................................................................................... 54
12 Use Notes ........................................................................................................................................................... 55
12.1 Accelerometer Mode Transitions ....................................................................................................... 55
12.2 Accelerometer Low Power (LP) Mode Averaging Filter Setting .......................................................... 55
12.3 Settings for I
2
C, I3C
SM
, and SPI Operation ........................................................................................... 55
ICM-42605
Page 4 of 106
Document Number: DS-000292
Revision: 1.7
12.4 Notch Filter and Anti-Alias Filter Operation ....................................................................................... 55
12.5 INT_ASYNC_RESET Configuration ....................................................................................................... 55
12.6 Register Values Modification .............................................................................................................. 56
13 Register Map ...................................................................................................................................................... 57
13.1 User Bank 0 Register Map................................................................................................................... 57
13.2 User Bank 1 Register Map................................................................................................................... 58
13.3 User Bank 2 Register Map................................................................................................................... 59
13.4 User Bank 4 Register Map................................................................................................................... 59
14 User Bank 0 Register Map – Descriptions .......................................................................................................... 60
14.1 DEVICE_CONFIG .................................................................................................................................. 60
14.2 DRIVE_CONFIG .................................................................................................................................... 60
14.3 INT_CONFIG ........................................................................................................................................ 61
14.4 FIFO_CONFIG ...................................................................................................................................... 61
14.5 TEMP_DATA1 ...................................................................................................................................... 61
14.6 TEMP_DATA0 ...................................................................................................................................... 62
14.7 ACCEL_DATA_X1 ................................................................................................................................. 62
14.8 ACCEL_DATA_X0 ................................................................................................................................. 62
14.9 ACCEL_DATA_Y1 ................................................................................................................................. 62
14.10 ACCEL_DATA_Y0 ................................................................................................................................. 63
14.11 ACCEL_DATA_Z1 ................................................................................................................................. 63
14.12 ACCEL_DATA_Z0 ................................................................................................................................. 63
14.13 GYRO_DATA_X1 .................................................................................................................................. 63
14.14 GYRO_DATA_X0 .................................................................................................................................. 63
14.15 GYRO_DATA_Y1 .................................................................................................................................. 64
14.16 GYRO_DATA_Y0 .................................................................................................................................. 64
14.17 GYRO_DATA_Z1 .................................................................................................................................. 64
14.18 GYRO_DATA_Z0 .................................................................................................................................. 64
14.19 TMST_FSYNCH .................................................................................................................................... 64
14.20 TMST_FSYNCL ..................................................................................................................................... 65
14.21 INT_STATUS ........................................................................................................................................ 65
14.22 FIFO_COUNTH..................................................................................................................................... 65
14.23 FIFO_COUNTL ..................................................................................................................................... 66
14.24 FIFO_DATA .......................................................................................................................................... 66
14.25 APEX_DATA0 ....................................................................................................................................... 66
14.26 APEX_DATA1 ....................................................................................................................................... 66
14.27 APEX_DATA2 ....................................................................................................................................... 67
14.28 APEX_DATA3 ....................................................................................................................................... 67
14.29 APEX_DATA4 ....................................................................................................................................... 68
14.30 APEX_DATA5 ....................................................................................................................................... 68
14.31 INT_STATUS2 ...................................................................................................................................... 69
ICM-42605
Page 5 of 106
Document Number: DS-000292
Revision: 1.7
14.32 INT_STATUS3 ...................................................................................................................................... 69
14.33 SIGNAL_PATH_RESET .......................................................................................................................... 69
14.34 INTF_CONFIG0 .................................................................................................................................... 70
14.35 INTF_CONFIG1 .................................................................................................................................... 71
14.36 PWR_MGMT0 ..................................................................................................................................... 72
14.37 GYRO_CONFIG0 .................................................................................................................................. 73
14.38 ACCEL_CONFIG0 ................................................................................................................................. 74
14.39 GYRO_CONFIG1 .................................................................................................................................. 75
14.40 GYRO_ACCEL_CONFIG0 ...................................................................................................................... 76
14.41 ACCEL_CONFIG1 ................................................................................................................................. 77
14.42 TMST_CONFIG .................................................................................................................................... 77
14.43 APEX_CONFIG0 ................................................................................................................................... 78
14.44 SMD_CONFIG ...................................................................................................................................... 78
14.45 FIFO_CONFIG1 .................................................................................................................................... 79
14.46 FIFO_CONFIG2 .................................................................................................................................... 79
14.47 FIFO_CONFIG3 .................................................................................................................................... 79
14.48 FSYNC_CONFIG ................................................................................................................................... 80
14.49 INT_CONFIG0 ...................................................................................................................................... 80
14.50 INT_CONFIG1 ...................................................................................................................................... 81
14.51 INT_SOURCE0 ..................................................................................................................................... 81
14.52 INT_SOURCE1 ..................................................................................................................................... 82
14.53 INT_SOURCE3 ..................................................................................................................................... 82
14.54 INT_SOURCE4 ..................................................................................................................................... 83
14.55 FIFO_LOST_PKT0 ................................................................................................................................. 83
14.56 FIFO_LOST_PKT1 ................................................................................................................................. 83
14.57 SELF_TEST_CONFIG ............................................................................................................................. 84
14.58 WHO_AM_I ......................................................................................................................................... 84
14.59 REG_BANK_SEL ................................................................................................................................... 84
15 User Bank 1 Register Map – Descriptions .......................................................................................................... 85
15.1 SENSOR_CONFIG0 .............................................................................................................................. 85
15.2 GYRO_CONFIG_STATIC2 ..................................................................................................................... 85
15.3 GYRO_CONFIG_STATIC3 ..................................................................................................................... 85
15.4 GYRO_CONFIG_STATIC4 ..................................................................................................................... 86
15.5 GYRO_CONFIG_STATIC5 ..................................................................................................................... 86
15.6 GYRO_CONFIG_STATIC6 ..................................................................................................................... 86
15.7 GYRO_CONFIG_STATIC7 ..................................................................................................................... 86
15.8 GYRO_CONFIG_STATIC8 ..................................................................................................................... 87
15.9 GYRO_CONFIG_STATIC9 ..................................................................................................................... 87
15.10 GYRO_CONFIG_STATIC10 ................................................................................................................... 87
15.11 XG_ST_DATA ....................................................................................................................................... 88
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