Application hints

LIS302ALB

10/17

4

Application hints

Figure 3.

LIS302ALB 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 LIS302ALB allows to band limit Voutx, Vouty and Voutz through the use of external

capacitors. The recommended frequency range spans from DC up to 2.0kHz. Capacitors

must be added at output pins to implement low-pass filtering for antialiasing and noise

32k

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

32k

Ω; thus the cut-off frequency will vary accordingly. A minimum capacitance of 2.5nF for

An external capacitor can be added to the Vout pin. Values below 10 pF are recommended.

DIRECTION OF THE

DETECTABLE

ACCELERATIONS

Y

1

X

Z

Digital signals

Vout X

LIS302ALB

Vout Y

Cload y

Cload x

(top view)

Optional

Optional

1

ST

S1

S0

PD

Vout z

Optional

Cload z

6

8

13

Aux In

100nF

10

μF

GND

GND

Vdd

Vout

GND

Vdd

Pin 1 indicator

f

t

1

2

π R

,,

()

⋅⋅

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

=

f

t

5

μF

C

,,

()

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

[]

=