參數(shù)資料
型號: MMA7455L
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: Three Axis Low-g Digital Output Accelerometer
中文描述: 三三軸低g加速度計的數(shù)字輸出
文件頁數(shù): 5/27頁
文件大?。?/td> 530K
代理商: MMA7455L
Sensors
Freescale Semiconductor
5
MMA7455L
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
t
su
t
ru
t
rd
t
st
f
GCELLXY
f
GCELLZ
1
6.0
3.4
20
20
ms
ms
ms
ms
kHz
kHz
Nonlinearity (2 g range)
-1
+1
%FS
Cross Axis Sensitivity
-5
+5
%
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: –40°C < T
A
< 85°C, 2.4 V < AV
DD
< 3.6 V, Acceleration = 0g, Loaded output
Characteristic
Symbol
Min
Typ
Max
Unit
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