mlx90333 Melexis Company, mlx90333 Datasheet - Page 26

• Manufacturer Part Number: mlx90333
• Description: Triaxis? 3d-joystick Position Sensor
• Manufacturer: Melexis Company

14.6.3. IIR Filters
The IIR Filter is enabled with Filter = 6. The diagram of the IIR Filter implemented in the MLX90333 is
given in Figure 15. Only the parameter A1 and A2 are configurable (See Table 2).
3901090333
Rev. 001
x(n)
Figure 14 - Step Response and Noise Response for FIR (No 3) and FHYST=10
40200
40150
40100
40050
40000
39950
39900
39850
39800
40000
38000
36000
34000
32000
30000
Z
Z
-1
-1
0
0
b
b
b
0
1
2
FIR and HYST Filters : Step response Comparative Plot
FIR and HYST Filter : Gaussian white noise response
= 1
= 2
= 1
5
Figure 15 - IIR Diagram
50
10
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Tria ⊗ is ™ 3D-Joystick Position Sensor
Milliseconds
Milliseconds
15
100
20
-a
-a
25
1
2
150
30
x(n)
fir(n)
hyst(n)
Z
Z
x(n)
fir(n)
hyst(n)
-1
-1
MLX90333
y(n)
Data Sheet
Jan 08