Performance plots – Cirrus Logic CS8421 User Manual
Page 24
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24
DS641F6
CS8421
5. PERFORMANCE PLOTS
-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
20k
80k
40k
60k
Hz
Figure 15. Wideband FFT Plot (16k Points) 0 dBFS
1 kHz Tone, 48 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
2.5k
20k
5k
7.5k
10k
12.5k
15k
17.5k
Hz
Figure 17. Wideband FFT Plot (16k Points) 0 dBFS
1 kHz Tone, 44.1 kHz:48 kHz
-200
+0
-180
-160
-140
-120
-100
-80
-60
-40
-20
d
B
F
S
10k
40k
20k
30k
Hz
-200
+0
-180
-160
-140
-120
-100
-80
-60
-40
-20
d
B
F
S
5k
20k
10k
15k
Hz
Figure 19. Wideband FFT Plot (16k Points) 0 dBFS
1 kHz Tone, 48 kHz:96 kHz
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