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參數(shù)資料
| 型號： | LSM303DLHTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA28 |
| 封裝： | 5 X 5 MM, 1 MM HEIGHT, ROHS COMPLIANT, PLASTIC, LGA-16 |
| 文件頁數(shù)： | 10/47頁 |
| 文件大?。?/td> | 585K |
| 代理商： | LSM303DLHTR |
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Functionality
LSM303DLH
18/47
Doc ID 16941 Rev 1
5
Functionality
The LSM303DLH is a system-in-package featuring a 3D digital linear acceleration and 3D
digital magnetic field detection sensor.
The system includes specific sensing elements and an IC interfaces capable of measuring
both the linear acceleration and magnetic field applied to it, and to provide a signal to the
external world through an I2C serial interface with separated digital ouput.
The sensing system is manufactured using specialized micromachining processes, while
the IC interfaces are realized using a CMOS technology that allows the design of a
dedicated circuit which is trimmed to better match the sensing element characteristics.
The LSM303DLH features two data-ready signals (RDY) which indicate when a new set of
measured acceleration data and magnetic data are available, thus simplifying data
synchronization in the digital system that uses the device.
The LSM303DLH may also be configured to generate an inertial
wakeup and free-fall
interrupt signal according to a programmed acceleration event along the enabled axes. Both
free-fall and wakeup can be used simultaneously on two different accelerometer interrupts.
5.1
Factory calibration
The IC interface is factory calibrated for linear acceleration sensitivity (LA_So), and linear
acceleration Zero-
g level (LA_TyOff).
The trimming values are stored inside the device in non-volatile memory. When the device is
turned on, the trimming parameters are downloaded into the registers to be used during
normal operation. This allows the use of the device without further calibration.
5.2
Linear acceleration self-test operation
Self-test allows the checking of sensor functionality without moving it. The self-test function
is off when the self-test bit (ST) of CTRL_REG4_A (control register 4) is programmed to ‘0‘.
When the self-test bit of CTRL_REG4_A is programmed to ‘1‘ an actuation force is applied
to the sensor, simulating a definite input acceleration. In this case the sensor outputs will
exhibit a change in their DC levels which are related to the selected full-scale through the
device sensitivity. When self-test is activated, the device output level is given by the
algebraic sum of the signals produced by the acceleration acting on the sensor and by the
electrostatic test-force. If the output signals change within the amplitude specified in
Table 3, then the sensor is working properly and the parameters of the interface chip are
within the defined specifications.
5.3
Magnetic self-test operation
To check the magnetic sensor for proper operation, a self-test feature is incorporated in
which the sensor offset straps are excited to create a nominal field strength (bias field) to be
measured. To implement this self-test, the least significant bits (MS1 and MS0) of
configuration register A are changed from 00 to 01 (0x12 or 0b000xxx01).
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| LSM330DL | SPECIALTY ANALOG CIRCUIT, PBGA28 |
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| LSN-1.8/16-D12HJ-C | 1-OUTPUT 28.8 W DC-DC REG PWR SUPPLY MODULE |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LSM303DLM | 功能描述:加速計(jì) - 板上安裝 3axis accelerometr & 3-axis magnetometer RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LSM303DLMTR | 功能描述:加速計(jì) - 板上安裝 3-Axis 2.16V to 3.6V 3D Magnetic 3-Ch RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LSM303DLMTR-CUT TAPE | 制造商:ST 功能描述:LSM303DLM Series 3 Axis ?/?/? g 3.6 V Digital Output Accelerometer - LGA-28L |
| LSM303DTR | 功能描述:加速計(jì) - 板上安裝 Ultra Compact High Perf E-Compass 3D accelerometer and 3D magnetometer module RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C |
| LSM315 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:3 AMP SCHOTTKY ORING RECTIFIER |
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