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2.5
Dynamic Electrical Characteristics - Signal Chain
V L ≤ (V CC - V SS ) ≤ V H , T L ≤ T A ≤ T H , | Δ T A | < 25 K/min unless otherwise specified.
#
Characteristic
Symbol
Min
Typ
Max
Units
89
90
91
DSP Sample Rate (LPF 0,1,2,3,4,5)
DSP Sample Rate (LPF 8,9,10,11,12,13)
Interpolation Sample Rate
t S
t S
t INTERP
—
—
—
64/f OSC
128/f OSC
t S /2
—
—
—
s
s
s
(7)
(7)
(7)
Data Path Latency (excluding g-cell and Low Pass Filter)
92
93
94
95
96
97
98
99
100
101
102
103
104
105
T S = 64/f OSC
T S = 128/f OSC
Low-Pass Filter (t s = 8 μ s)
Cutoff frequency 0: 100 Hz, 4-pole
Cutoff frequency 1: 300 Hz, 4-pole
Cutoff frequency 2: 400 Hz, 4-pole
Cutoff frequency 3: 800 Hz, 4-pole
Cutoff frequency 4: 1000 Hz, 4-pole
Cutoff frequency 5: 400 Hz, 3-pole
Low-Pass Filter (t s = 16 μ s)
Cutoff frequency 8: 50 Hz, 4-pole
Cutoff frequency 9: 150 Hz, 4-pole
Cutoff frequency 10: 200 Hz, 4-pole
Cutoff frequency 11: 400 Hz, 4-pole
Cutoff frequency 12: 500 Hz, 4-pole
Cutoff frequency 13: 200 Hz, 3-pole
*
*
*
*
*
*
*
*
*
*
*
*
*
*
t DataPath_8
t DataPath_16
f C0(LPF)
f C1(LPF)
f C2(LPF)
f C3(LPF)
f C4(LPF)
f C5(LPF)
f C8(LPF)
f C9(LPF)
f C10(LPF)
f C11(LPF)
f C12(LPF)
f C13(LPF)
33.0
51.9
95
285
380
760
950
380
47.5
142.5
190
380
475
190
34.8
54.6
100
300
400
800
1000
400
50
150
200
400
500
200
36.5
57.4
105
315
420
840
1050
420
52.5
157.5
210
420
525
210
μ s
μ s
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
(7,16)
(7,16)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
(3,7,17)
Offset Cancellation (Normal Mode, 12-Bit Output)
106
107
108
109
110
111
112
Offset Averaging Period
Offset Slew Rate
Offset Update Rate
Offset Correction Value per Update Positive
Offset Correction Value per Update Negative
Offset Correction Threshold Positive
Offset Correction Threshold Negative
*
*
*
*
*
*
*
OFF AVEPER
OFF SLEW
OFF RATE
OFF CORRP
OFF CORRN
OFF THP
OFF THN
—
—
—
—
—
—
—
6.29146
0.2384
1049
0.25
-0.25
0.125
0.125
—
—
—
—
—
—
—
s
LSB/s
ms
LSB
LSB
LSB
LSB
(3,7)
(3,7)
(3,7)
(3,7)
(3,7)
(3,7)
(3,7)
Self Test Activation Time (CS rising edge to 90% of ST Final Value)
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
Cutoff frequency 0: 100 Hz, 4-pole
Cutoff frequency 1: 300 Hz, 4-pole
Cutoff frequency 2: 400 Hz, 4-pole
Cutoff frequency 3: 800 Hz, 4-pole
Cutoff frequency 4: 1000 Hz, 4-pole
Cutoff frequency 5: 400 Hz, 3-pole
Offset Monitor Bypass Time after Self Test Deactivation
Time Between Acceleration Data Requests (Same Axis)
Arming Output Activation Time (ARM, I ARM = 200 μ A)
Moving Average and Count Arming Modes (2,3,4,5)
Unfiltered Mode Activation Delay (Reference Figure 30 )
Unfiltered Mode Arm Assertion Time (Reference Figure 30 )
Sensing Element Natural Frequency
Sensing Element Cutoff Frequency (-3 dB ref. to 0 Hz)
Sensing Element Damping Ratio
Sensing Element Delay (@100 Hz)
Sensing Element Step Response (0% - 90%)
Package Resonance Frequency
Package Quality Factor
ST_ACT 100
ST_ACT 300
ST_ACT 400
ST_ACT 800
ST_ACT 1000
ST_ACT 400_3
t ST_OMB
t ACC_REQ
t ARM
t ARM_UF_DLY
t ARM_UF_ASSERT
f gcell
f gcell
ζ gcell
f gcell_delay
t Step_gcell
f Package
q Package
—
—
—
—
—
—
—
15
0
0
5.00
10791
0.851
2.46
70
—
100
1
—
—
—
—
—
—
320
—
—
—
—
13464
1.58
4.31
101
—
—
—
7.00
3.00
2.50
1.70
1.60
2.40
—
—
1.51
1.51
6.579
15879
2.29
9.36
187
200
—
5
ms
ms
ms
ms
ms
ms
t S
μ s
μ s
μ s
μ s
Hz
kHz
—
μ s
μ s
kHz
(19)
(19)
(19)
(19)
(19)
(19)
(3,7)
(3,7,20)
(3,12)
(3,12)
(3)
(19)
(19)
(19)
(19)
(19)
(19)
(19)
MMA655x
Sensor
8
Freescale Semiconductor, Inc.
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