Cs8421 – Cirrus Logic CS8421 User Manual
Page 26
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26
DS641F6
CS8421
-200
-60
-180
-160
-140
-120
-100
-80
d
B
F
S
5k
20k
10k
15k
Hz
-200
+0
-180
-160
-140
-120
-100
-80
-60
-40
-20
d
B
F
S
5k
20k
10k
15k
Hz
Figure 27. Wideband FFT Plot (16k Points) -
60 dBFS 1 kHz Tone, 96 kHz:48 kHz
-200
-60
-180
-160
-140
-120
-100
-80
d
B
F
S
5k
20k
10k
15k
Hz
-200
+0
-180
-160
-140
-120
-100
-80
-60
-40
-20
d
B
F
S
2.5k
20k
5k
7.5k
10k
12.5k
15k
17.5k
Hz
Figure 29. Wideband FFT Plot (16k Points) -
60 dBFS 1 kHz Tone, 192 kHz:48 kHz
-200
+0
-180
-160
-140
-120
-100
-80
-60
-40
-20
d
B
F
S
5k
20k
10k
15k
Hz
-200
+0
-180
-160
-140
-120
-100
-80
-60
-40
-20
d
B
F
S
5k
20k
10k
15k
Hz
Figure 31. IMD, 10 kHz and 11 kHz -7 dBFS,
44.1 kHz:48 kHz
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