SINC1 – Single stage, fixed decimate by 8
5th order decimate by 8, 36 coefficients
SINC2 – Multi-stage, variable decimation
Stage 1: 4th order decimate by 2, 5 coefficients
Stage 2: 4th order decimate by 2, 5 coefficients
Stage 3: 5th order decimate by 2, 6 coefficients
Stage 4: 6th order decimate by 2, 7 coefficients
SINC3 – Multi-stage, variable decimation
Stage 1: 4th order decimate by 5, 17 coefficients
Stage 2: 4th order decimate by 5, 17 coefficients
Stage 3: 4th order decimate by 5, 17 coefficients
Stage 4: 5th order decimate by 5, 21 coefficients
Stage 5: 5th order decimate by 2, 6 coefficients
Stage 6: 6th order decimate by 3, 13 coefficients
Stage 7: 6th order decimate by 2, 7 coefficients
Figure 24. SINC Filter Stages
CS5378
SINC filters
FIR2
DEC Bit
Output
Setting
Word
Rate
4000
0111
2000
0110
1000
0101
500
0100
333
0011
250
0010
200
0001
125
0000
100
1111
50
1110
40
1101
25
1100
20
1011
10
1010
5
1001
1
1000
SINC1
Deci-
mation
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
SINC2
Deci-
mation
2
4
8
16
8
16
4
16
4
8
4
16
4
8
16
16
SINC2
Stages
SINC3
Deci-
mation
4
-
3,4
-
2,3,4
-
1,2,3,4
-
2,3,4
3
1,2,3,4
2
3,4
10
1,2,3,4
4
3,4
20
2,3,4
20
3,4
50
1,2,3,4
20
3,4
100
2,3,4
100
1,2,3,4
100
1,2,3,4
500
Table 11. SINC Filter Configurations
SINC3
Stages
-
-
-
-
6
7
4,7
5,7
3,5,7
3,5,7
3,4,7
3,5,7
2,3,5,7
2,3,5,7
2,3,5,7
1,2,3,5,7
DS639F1
41