參數(shù)資料
型號: LIS3L06ALTR
廠商: 意法半導(dǎo)體
英文描述: MEMS INERTIAL SENSOR: 3-axis - +/-2g/6g ULTRACOMPACT LINEAR ACCELEROMETER
中文描述: MEMS慣性傳感器:3軸- / -2g/6g超小型線性加速度計
文件頁數(shù): 10/17頁
文件大?。?/td> 172K
代理商: LIS3L06ALTR
4 Application hints
LIS3L06AL
10/17
CD00068498
4
Application hints
Figure 3.
LIS3L06AL Electrical Connection
Power supply decoupling capacitors (100nF ceramic or polyester + 10
μ
F Aluminum) should be
placed as near as possible to the device (common design practice).
The LIS3L06AL allows to band limit Voutx, Vouty and Voutz through the use of external
capacitors. The re-commended frequency range spans from DC up to 1.5 KHz. In particular,
capacitors must be added at output pins to implement low-pass filtering for antialiasing and
noise reduction. The equation for the cut-off frequency (f
t
) of the external filters is:
Taking in account that the internal filtering resistor (R
out
) has a nominal value equal to 110k
,
the equation for the external filter cut-off frequency may be simplified as follows:
C
load
x y z
The tolerance of the internal resistor can vary typically of
±
20% within its nominal value of
110k
; thus the cut-off frequency will vary accordingly. A minimum capacitance of 1nF for
C
load
(x, y, z) is required in any case.
DIRECTION OF THE
DETECTABLE
ACCELERATIONS
1
Y
X
Z
Digital signals
Vout Z
Cload z
Optional
Vout Y
100nF
Cload y
LIS3L06AL
10
μ
F
Vdd
Vout X
GND
GND
Cload x
(top view)
Optional
Optional
GND
ST
FS
f
t
2
π
R
out
C
load
x y z
(
)
---------------------------------------------------------------
=
f
t
(
)
-----------------------------------
Hz
[
]
=
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