《da380英文资料》由会员分享，可在线阅读，更多相关《da380英文资料（45页珍藏版）》请在金锄头文库上搜索。
1、1/ 45 MEMS digital output motion sensor low-power high performance 3-axes “DSC-XYZ” accelerometer Key Features Supply voltage, 1.62V to 3.6V For 3x3x0.9 mm LGA-10 package User selectable range, 2g, 4g, 8g, 16g User selectable data output rate Digital I2C output interface 14 bit resolution Low power
2、 consumption 1 Programmable interrupt generator with independent function for motion detection Free-fall detection Embedded self-test function Factory programmable offset and sensitivity RoHS compliant Applications User interface for mobile phone and PMP Display orientation Gesture recognition Activ
3、e/inactive monitoring Free-fall detection Double/ Click recognition Power management Vibration monitoring Inclination and tilt sensing Pedometer da380 Aug 2013Rev 0.1 DS_da380 2/ 45 Product Overview The da380 sensor is the low power high performance capacitive three-axis linear accelerometer develo
4、ped by micro-machined technology. The device is available in a 3x3x0.9 mm land grid array (LGA) and it is guaranteed to operate over an extended temperature range from -40C to +85C. The sensor element is fabricated by single crystal silicon with DRIE process and is protected by hermetically sealed s
5、ilicon cap from the environment. The device features user selectable full scale of 2g/ 4g/ 8g/ 16g measurement range with data output rate from 1Hz to 1 kHz with signal condition, temperature compensation， self-test, motion detection imbedded. The da380 has a self-test mode for user to check the fun
6、ctioning of the sensor and a power-down mode that makes it good for handset power management. Flexible interrupt provided greatly simplify the algorithm for various motion status detections. Standard I2C interface is used to communicate with the chip. Aug 2013Rev 0.1 DS_da380 3/ 45 Content 1 Block
7、diagram and pin description . 9 1.1 Block diagram . 9 1.2 Pin description 9 2 Mechanical and electrical specifications 11 2.1 Mechanical characteristics . 11 2.2 Electrical characteristics . 12 2.3 Absolute maximum ratings . 13 3 Communication interface . 14 3.1 Communication interface Electrical sp
8、ecification 14 3.1.1 I2CElectrical specification . 14 3.2 Digital interface operation 15 3.2.1 I2C Operation 15 4 Terminology and functionality 17 4.1 Terminology 17 4.1.1 Sensitivity . 17 4.1.2 Zero-g level . 17 4.2 Functionality . 17 4.2.1 Power mode . 17 4.2.2 Sensor data . 18 4.2.3 Self-test . 1
9、8 4.2.4 Offset compensation 19 4.2.5 Factory calibration 19 4.3 Interrupt controller . 19 4.3.1 General features . 19 4.3.2 Mapping 21 4.3.3 Electrical behavior (INT to open-drive or push-pull) 21 4.3.4 New data interrupt . 21 4.3.5 Active detection 21 4.3.6 Tap detection 21 4.3.7 Orientation recogn
10、ition 23 4.3.8 Freefall interrupt. 24 5 Application hints . 26 6 Register mapping 27 7 Registers description 29 7.1 I2C Configuration (00H) 29 7.2 CHIPID (01h) . 29 7.3 ACC_X_LSB (02H) , ACC_X_MSB (03H) . 29 7.4 ACC_Y_LSB (04H) , ACC_Y_MSB (05H) 29 7.5 ACC_Z_LSB (06H) , ACC_Z_MSB (07H) 30 7.6 MOTION
11、_FLAG (09H) 30 7.7 NEWDATA_FLAG (0AH) 30 Aug 2013Rev 0.1 DS_da380 4/ 45 7.8 TAP_ACTIVE_STATUS (0BH) 31 7.9 ORIENT_STATUS (0CH) . 31 7.10 RESOLUTION_RANGE (0FH) 32 7.11 ODR_AXIS (10H) 32 7.12 MODE_BW (11H) 33 7.13 SWAP_POLARITY (12H) . 33 7.14 INT_SET1 (16H) . 34 7.15 INT_SET2 (17H) . 34 7.16 INT_MA
12、P1 (19H) . 35 7.17 INT_MAP2 (1AH) 35 7.18 INT_CONFIG (20H) 35 7.19 INT_LTACH (21H) 36 7.20 FREEFALL_DUR (22H) 36 7.21 FREEFALL_THS (23H) 37 7.22 FREEFALL_HYST (24H) 37 7.23 ACTIVE_DUR (27H) . 37 7.24 ACTIVE_THS (28H) 38 7.25 TAP_DUR (2AH) 38 7.26 TAP_THS (2BH) . 39 7.27 ORIENT_HYST (2CH) . 39 7.28 Z
13、_BLOCK (2DH) . 40 7.29 SELF_TEST (32H) . 40 7.30 CUSTOM_OFF_X (38H) . 40 7.31 CUSTOM_OFF_Y (39H) . 41 7.32 CUSTOM_OFF_Z (39H) . 41 7.33 CUSTOM_FLAG (4EH) . 41 7.34 CUSTOM_CODE (4FH) . 41 7.35 Z_ROT_HODE_TM (51H) . 42 7.36 Z_ROT_DUR (52H) 42 7.37 ROT_TH_H (53H) 42 7.38 ROT_TH_L (54H) . 43 8 Package i
14、nformation . 44 9 Revision history 45 Aug 2013Rev 0.1 DS_da380 5/ 45 List of tables Table 1. Pin description 10 Table 2. Mechanical characteristic . 11 Table 3. Electrical characteristics 12 Table 4. Absolute maximum ratings . 13 Table 5. Electrical specification of the I2C interface pins . 14 Tabl
15、e 6. I2C Address . 15 Table 7. SAD+Read/Write patterns . 15 Table 8. Transfer when master is writing one byte to slave . 15 Table 9. Transfer when master is writing multiple bytes to slave . 16 Table 10. Transfer when master is receiving (reading) one byte of data from slave 16 Table 11. Transfer when master is receiving (reading) multiple bytes of dat
