4 Application hints

LIS3L02AS5

10/14

4

Application hints

Figure 3.

LIS3L02AS5 Electrical Connection

Power supply decoupling capacitors (100nF ceramic or polyester + 10

µF Aluminum) should be

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

The LIS3L02AS5 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

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

The tolerance of the internal resistor can vary typically of

110k

Ω; thus the cut-off frequency will vary accordingly. A minimum capacitance of 320pF for

Vout Z

100nF

Cload z

LIS3L02AS5

10

µF

Vdd

Vout X

GND

ST

GND

GND

Cload x

Cload y

(top view)

Optional

Optional

Vout Y

Optional

PD

FS

Digital signals

DIRECTION OF THE

DETECTABLE

ACCELERATIONS

Y

1

13

Z

X

GND

f

t

1

2

π

R

out

C

load

xyz

,,

(

)

⋅⋅

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

=

f

t

1.45

µF

C

load

xyz

,,

()

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

[]

=