Application hints

LIS244ALH

12/16

4

Application hints

Figure 3.

LIS244ALH electrical connection

should be placed as near as possible to the device (common design practice).

The LIS244ALH allows to band limit VoutX and VoutY through the use of external

capacitors. The recommended frequency range spans from DC up to 2.0 KHz. In particular,

capacitors are added at output VoutX and VoutY pins to implement low-pass filtering for

filters is in this case:

110 K

Ω, the equation for the external filter cut-off frequency may be simplified as follows:

The tolerance of the internal resistor can vary typically of

110 K

Ω; thus the cut-off frequency will vary accordingly. A minimum capacitance of 1 nF for

Digital signals

LIS244ALH

(top view)

(TOP VIEW)

DIRECTIONS OF THE

DETECTABLE

ACCELERATIONS

Y

1

X

ST

GND

1

4

9

12

Vdd

GND

GND

100nF

10µF

Vout y

Cload Y

Vout x

Cload X

5

16

2

3

67

8

10

11

15

14

13

FS

Pin 1 indicator

Optional

Optional

f

t

1

2

π R

out

C

,

()

⋅⋅

-----------------------------------------------------------------

=

f

t

1.45

µF

C

,

()

------------------------------- Hz

[]

=