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| 型号： | LPY503ALTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA16 |
| 封装： | 5 X 5 MM, 1.50 MM HEIGHT, ROHS COMPLIANT, PLASTIC, LGA-16 |
| 文件页数： | 10/12页 |
| 文件大小： | 222K |
| 代理商： | LPY503ALTR |
LPY503AL
Terminology
Doc ID 15804 Rev 2
7/12
3
Terminology
3.1
Sensitivity
An angular rate gyroscope is a device that produces a positive-going output voltage for
counterclockwise rotation around the sensitive axis considered. Sensitivity describes the
gain of the sensor and can be determined by applying a defined angular velocity to it. This
value changes very little over temperature and time.
3.2
Zero-rate level
Zero-rate level describes the actual output signal if there is no angular rate present. The
zero-rate level of precise MEMS sensors is, to some extent, a result of stress to the sensor
and therefore zero-rate level can slightly change after mounting the sensor onto a printed
circuit board or after exposing it to extensive mechanical stress. This value changes very
little over temperature and time.
3.3
Self-test
Self-test allows testing of the mechanical and electrical part of the sensor, allowing the
seismic mass to be moved by means of an electrostatic test-force. The self-test function is
off when the ST pin is connected to GND. When the ST pin is tied to Vdd, an actuation force
is applied to the sensor, emulating a definite Coriolis force. In this case the sensor output will
exhibit a voltage change in its DC level which is also dependent on the supply voltage.
When ST is active, the device output level is given by the algebraic sum of the signals
produced by the velocity acting on the sensor and by the electrostatic test-force. If the output
signals change within the amplitude specified in
Table 3, then the mechanical element is
working properly and the parameters of the interface chip are within the defined
specifications.
3.4
High pass filter reset (HP)
The LPY503AL provides the possibility to reset the optional external high pass filter by
applying a high logic value to the HP pad. This procedure ensures faster response,
especially during overload conditions. Moreover, this operation is suggested each time the
device is powered.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LPY510AL | 功能描述:螺旋仪 Dual 2.5 mV deg/s LGA-16 RoHS:否 制造商:Murata 传感轴:Triple 灵敏度: 输出类型:Digital 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:5 mA 封装 / 箱体: |
| LPY510ALTR | 功能描述:螺旋仪 MEMS 100 / 400 2.7V to 3.6V PS RoHS:否 制造商:Murata 传感轴:Triple 灵敏度: 输出类型:Digital 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:5 mA 封装 / 箱体: |
| LPY5150AL | 功能描述:螺旋仪 Dual 0.167 mV deg/s LGA-16 RoHS:否 制造商:Murata 传感轴:Triple 灵敏度: 输出类型:Digital 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:5 mA 封装 / 箱体: |
| LPY5150ALTR | 功能描述:螺旋仪 MEMS 1500 / 6000 2.7V to 3.6V PS RoHS:否 制造商:Murata 传感轴:Triple 灵敏度: 输出类型:Digital 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:5 mA 封装 / 箱体: |
| LPY530AL | 功能描述:螺旋仪 Dual 0.83 mV deg/s LGA-16 RoHS:否 制造商:Murata 传感轴:Triple 灵敏度: 输出类型:Digital 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:5 mA 封装 / 箱体: |
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