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参数资料
| 型号： | MMA6556KW |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 38/53页 |
| 文件大小： | 0K |
| 描述： | IC ACCELEROMETER X AXIS 16QFN |
| 标准包装： | 75 |
| 轴： | X |
| 加速范围： | ±120g |
| 灵敏度： | 16 LSB/g |
| 电源电压： | 3.13 V ~ 5.25 V |
| 输出类型： | SPI |
| 接口： | SPI |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-QFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN-EP（6x6） |
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3.8.10.3 Arming Function: Unfiltered Mode
On the rising edge of CS for an acceleration request, the most recent available offset cancelled sample for the requested axis
is compared against positive and negative thresholds that are programmed via the ARMT_x registers. Reference Section 3.1.10
for register details. If the sample equals or exceeds either threshold, an arming condition is indicated.
Once an arming condition is indicated for the ARM output is asserted when CS is asserted and the MISO data includes an
acceleration response for that axis.
The pulse stretch function is not applied in Unfiltered mode.
Figure 29 contains a block diagram of the Arming Function operation in Unfiltered Mode. Figure 30 shows the Arming output
operation under the different SPI request conditions.
ACFG[2]
ACFG[1]
CS
AXIS Select
SCLK
CS
MOSI
ARMING FUNCTION
Interpolated Sample Rate
Figure 29. Arming Function Block Diagram - Unfiltered Mode
I/O
ARM
Request X-Axis
X-Axis Response
Request X-Axis
X-Axis Response
Request X-Axis
X-Axis Response
Request X-Axis
X-Axis Response
MISO
ARM
X-Axis Arm Condition
Not Present
X-Axis Arm Condition
Present
X-Axis Arm Condition
Not Present
X-Axis Arm Condition
Not Present
X-Axis Data
Latched for
Arm & SPI
t ARM_UF_DLY
t ARM_UF_ASSERT
Figure 30. Arming Condition, Unfiltered Mode
MMA655x
Sensor
38
Freescale Semiconductor, Inc.
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相关代理商/技术参数 |
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|---|---|
| MMA6556KWR2 | 功能描述:加速计 - 板上安装 X-AXIS 120G RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| MMA65XX | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Dual-Axis SPI Inertial Sensor |
| MMA6700AEGR2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC |
| MMA6700EG | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC |
| MMA6700EGR2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High Accuracy Low g Inertial Sensor MEMS Sensing, State Machine ASIC |
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