PMMA7450LR2 Freescale Semiconductor, Inc, PMMA7450LR2 Datasheet - Page 4

• Manufacturer Part Number: PMMA7450LR2
• Description: ?2g/?4g/?8g Three Axis Low-g Digital Output Accelerometer
• Manufacturer: Freescale Semiconductor, Inc

Table 2. Operating Characteristics (Continued)
Unless otherwise noted: –20°C < T
Control Timing
Nonlinearity (2 g range)
Cross Axis Sensitivity
Table 3. Function Parameters for Detection
V
Note: The response time is between 10% of full scale Vdd input voltage and 90% of the final operating output voltage.
4
MMA7450L
Level Detection
Pulse Detection
L
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
Internal Sampling Frequency
< V
XY
Z
Detection Threshold Range
Pulse detection range (Adjustable range)
Time step for pulse detection
Threshold range for pulses
Detection levels for threshold (5)
Latency timer (Adjustable range)
Time Window (Adjustable range)
Measurement bandwidth for detecting interrupt
Time step for latency timer and time window
DD
< V
H
; T
L
< T
A
< T
Characteristic
Characteristic
H
unless otherwise specified
A
< 65°C, 2.4 V < AV
DD
< 3.6 V, Acceleration = 0g, Loaded output
f
Symbol
GCELLXY
f
GCELLZ
Symbol
f
CLK
t
t
t
t
su
ru
rd
st
Min
Min
0.5
-1
-5
0
0
1
1
Typ
127
600
0.5
Typ
6.0
3.4
1
—
1
Freescale Semiconductor
Max
127
150
250
Max
FS
FS
20
20
+1
+5
Levels
Unit
Sensors
%FS
ms
ms
ms
ms
ms
Unit
Hz
kHz
kHz
kHz
G
ms
ms
ms
ms
g
%