CS5378 데이터 시트보기 (PDF) - Cirrus Logic
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CS5378 Datasheet PDF : 88 Pages
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CS5378
Individual filter stage group delay (no IIR)
SINC1
SINC2
Stage 4
Stages 3,4
Stages 2,3,4
Stages 1,2,3,4
SINC3
Stage 7
Stage 6
Stages 5,7
Stages 4,7
Stages 3,5,7
Stages 3,4,7
Stages 2,3,5,7
Stages 1,2,3,5,7
FIR1
Coefficient Set 0
Coefficient Set 1
FIR2
Coefficient Set 0
Coefficient Set 1
Decimation
Ratios
8
2
2,2
2,2,2
2,2,2,2
2
3
2,2
5,2
5,2,2
5,5,2
5,5,2,2
5,5,5,2,2
4
4
2
2
Number of
Coefficients
36
Group Delay
(Input Rate)
17.5
7
6,7
5,6,7
5,5,6,7
3.0
8.5
19.0
40.0
7
13
6,7
21,7
17,6,7
17,21,7
17,17,6,7
17,17,17,6,7
3.0
6.0
8.5
25.0
50.5
133.0
260.5
1310.5
48
23.5
48
See Figure
126
62.5
126
See Figure
Cumulative linear phase group delay (no IIR)
FIR2
Output
Word
Rate
4000
2000
1000
500
333
250
200
125
100
50
40
25
20
10
5
1
SINC Output
Group Delay
(SINC Filter
Input Rate)
41.5
85.5
169.5
337.5
553.5
721.5
885.5
1425.5
1701.5
3401.5
4341.5
6801.5
8421.5
16841.5
33681.5
168081.5
FIR1 Output
Group Delay
(SINC Filter
Input Rate)
417.5
837.5
1673.5
3345.5
5065.5
6737.5
8405.5
13457.5
16741.5
33481.5
41941.5
66961.5
83621.5
167241.5
334481.5
1672081.5
FIR2 Output
Group Delay
(SINC Filter
Input Rate)
4417.5
8837.5
17673.5
35345.5
53065.5
70737.5
88405.5
141457.5
176741.5
353481.5
441941.5
706961.5
883621.5
1767241.5
3534481.5
17672081.5
FIR2 Output
Group Delay
(FIR2 Output
Word Rate)
34.5117
34.5215
34.5186
34.5171
34.5479
34.5398
34.5334
34.5355
34.5198
34.5197
34.5267
34.5196
34.5165
34.5164
34.5164
34.5158
Table 15. SINC + FIR Group Delay
DS639F2
47
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