MLX90316KDC-BDG Datasheet, PDF (24/45 Pages) Melexis Microelectronic Systems – Rotary Position Sensor IC

MLX90316
Rotary Position Sensor IC
The characteristics of the filters no 0 to 5 is given in the Table 1.
Filter No (j)
Type
Coefficients a0… a5
Title
90% Response Time
99% Response Time
Efficiency RMS (dB)
Efficiency P2P (dB)
0
Disable
N/A
No Filter
1
1
0
0
1
2
3
4
Finite Impulse Response
110000
121000
133100
111100
Extra Light
Light
2
3
4
4
2
3
4
4
2.9
4.0
4.7
5.6
2.9
3.6
5.0
6.1
Table 1 - FIR Filters Selection Table
40000
FIR and HYST Filters : Step response Comparative Plot
38000
36000
x(n)
fir(n)
hyst(n)
5
122210
5
5
6.2
7.0
34000
32000
30000
0
5
10
15
20
25
30
Milliseconds
40200
40150
40100
40050
40000
39950
39900
39850
39800
0
FIR and HYST Filter : Gaussian white noise response
50
100
Milliseconds
x(n)
fir(n)
hyst(n)
150
Figure 11 - Step Response and Noise Response for FIR (No 3) and FHYST=10
3901090316
Rev10
Page 24 of 45
Jul/13