MLX90333KGO MELEXIS [Melexis Microelectronic Systems], MLX90333KGO Datasheet - Page 25

• Manufacturer Part Number: MLX90333KGO
• Description: Triaxis 3D-Joystick Position Sensor
• Manufacturer: MELEXIS [Melexis Microelectronic Systems]

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 14. Only the parameter A1 and A2 are configurable (See Table 2).
3901090333
Rev. Preliminary
x(n)
Figure 13 - 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 14 - IIR Diagram
50
10
Page 25 of 38
Milliseconds
Milliseconds
Triaxis 3D-Joystick Position Sensor
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
May 07