參數資料
型號： LIS302DLTR8
廠商： STMICROELECTRONICS
元件分類： 模擬信號調理
英文描述： SPECIALTY ANALOG CIRCUIT, PQCC14
封裝： 3 X 5 MM, 0.92 MM HEIGHT, 0.80 MM PITCH, GREEN, PLASTIC, TLGA-14
文件頁數： 7/42頁
文件大小： 602K
代理商： LIS302DLTR8
LIS302DL
Mechanical and electrical specifications
15/42
2.5.2
Zero-g level
Zero-g level Offset (Off) describes the deviation of an actual output signal from the ideal
output signal if there is no acceleration present. A sensor in a steady state on a horizontal
surface will measure 0g in X axis and 0g in Y axis whereas the Z axis will measure 1g. The
output is ideally in the middle of the dynamic range of the sensor (content of OUT registers
00h, data expressed as 2’s complement number). A deviation from ideal value in this case is
called Zero-g offset. Offset is to some extent a result of stress to a precise MEMS sensor
and therefore the offset can slightly change after mounting the sensor onto a printed circuit
board or exposing it to extensive mechanical stress. Offset changes little over temperature,
see “Zero-g level change vs. temperature”. The Zero-g level of an individual sensor is stable
over lifetime. The Zero-g level tolerance describes the range of Zero-g levels of a population
of sensors.
2.5.3
Self test
Self Test allows to check the sensor functionality without moving it. The Self Test function is
off when the self-test bit of CTRL_REG1 (control register 1) is programmed to ‘0‘. When the
self-test bit of ctrl_reg1 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 is 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 inside
Table 3, than the sensor is
working properly and the parameters of the interface chip are within the defined
specification.
2.5.4
Click and double click recognition
The Click and Double Click recognition functions help to create man-machine interface with
little software overload. The device can be configured to output an interrupt signal on
dedicated pin when tapped in any direction.
If the sensor is exposed to a single input stimulus it generates an interrupt request on inertial
interrupt pin (INT1 and/or INT2). A more advanced feature allows to generate and interrupt
request when a “double click” with programmable time between the two events enabling a
“mouse button like” use.
This function can be fully programmed by the user in terms of expected amplitude and
timing of the stimuli.
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相關代理商/技術參數
參數描述
LIS302DLTR-CUT TAPE 制造商:ST 功能描述:LIS302DL Series 3 Axis ?/? g 3.3 V Digital Output Piccolo Accerometer - LGA-14
LIS302SG 功能描述:加速計 - 板上安裝 MEMS MOTION SENSOR 3 AXIS +/-2g Piccolo 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 數字輸出 - 位數: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
LIS302SGTR 功能描述:加速計 - 板上安裝 MEMS motion sensor 3-axis 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 數字輸出 - 位數: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
LIS-3-15 制造商:TDK-Lambda Corporation 功能描述:15W AC To DC Switching Power Supply - 95-132V/187-265V in - 15V 1A out
LIS-3-20 制造商:TDK-Lambda Corporation 功能描述:15W AC To DC Switching Power Supply - 95-132V/187-265V in - 20V 0.75A out
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