參數(shù)資料
型號(hào)： MMA7450LR2
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： 【2g/【4g/【8g Three Axis Low-g Digital Output Accelerometer
中文描述： 【2克/【4克/【八克三三軸低g加速度計(jì)的數(shù)字輸出
文件頁(yè)數(shù)： 4/22頁(yè)
文件大?。?/td> 389K
代理商： MMA7450LR2
Sensors
4
Freescale Semiconductor
MMA7450L
1. These limits define the range of operation for which the part will meet specification.
2. Within the supply range of 2.4 and 3.6 V, the device operates as a fully calibrated linear accelerometer. Beyond these supply limits the device
may operate as a linear device but is not guaranteed to be in calibration.
3. This value is measured with g-Select in 2g mode.
4. The device can measure both + and - acceleration. The output is at mid-supply with no acceleration. The output will increase above VDD/2
for positive acceleration. The output will decrease below VDD/2 for negative acceleration.
5. The response time is between 10% of full scale Vdd input voltage and 90% of the final operating output voltage.
6. The response time is between 10% of full scale standby mode input voltage and 90% of the final operating output voltage.
7. The response time is between 10% of the full scale self test input voltage and 90% of the self test output voltage.
8. A measure of the device ability to reject acceleration is applied 90° from the true axis of sensitivity.
Note: The response time is between 10% of full scale Vdd input voltage and 90% of the final operating output voltage.
Control Timing
Wait Time for IIC/SPI ready after power on
Turn On Response Time (Standby to Normal Mode)
Turn Off Response Time (Normal to Standby Mode)
Self Test Response Time
Sensing Element Resonant Frequency
XY
Z
Internal Sampling Frequency
t
su
t
ru
t
rd
t
st
f
GCELLXY
f
GCELLZ
f
CLK
1
20
20
ms
ms
ms
ms
kHz
kHz
kHz
Nonlinearity (2 g range)
-1
—
+1
%FS
Cross Axis Sensitivity
-5
+5
%
Orthogonality Error of Channels
TBD
TBD
°
Package to Die Misalignment
1
°
RF Field Influence to Sensor
TBD
LSB
Table 3. Function Parameters for Detection
V
L
< V
DD
< V
H
; T
L
< T
A
< T
H
unless otherwise specified
Characteristic
Symbol
Min
Typ
Max
Unit
Level Detection
Detection Threshold Range
0
FS
G
Pulse Detection
Pulse detection range (Adjustable range)
0.5
127
ms
Time step for pulse detection
0.5
ms
Threshold range for pulses
0
FS
g
Detection levels for threshold (5)
127
Levels
Latency timer (Adjustable range)
1
150
ms
Time Window (Adjustable range)
1
250
ms
Measurement bandwidth for detecting interrupt
600
Hz
Time step for latency timer and time window
1
ms
Table 2. Operating Characteristics (Continued)
Unless otherwise noted: –20°C < T
A
< 65°C, 2.4 V < AV
DD
< 3.6 V, Acceleration = 0g, Loaded output
Characteristic
Symbol
Min
Typ
Max
Unit
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MMA7450LT 制造商:Freescale Semiconductor 功能描述:ACCELEROMETER TRIPLE ?2G/?4G/?8G 2.8V 14-PIN LGA TRAY - Trays
MMA7455L 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:±2g/±4g/±8g Three Axis Low-g Digital Output Accelerometer
MMA7455L_08 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:±2g/±4g/±8g Three Axis Low-g Digital Output Accelerometer
MMA7455L_09 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:±2g/±4g/±8g Three Axis Low-g Digital Output Accelerometer
MMA7455LR1 功能描述:加速計(jì) - 板上安裝 3-AXIS DIGITAL 2 4 8G 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
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