Performance plots – Cirrus Logic CS8422 User Manual
Page 71
DS692F2
71
CS8422
13.PERFORMANCE PLOTS
Test conditions (unless otherwise specified): Measurement bandwidth is 20 Hz to Fso/2 Hz (unweighted);
VA = VL = V_REG = 3.3 V; XTI - XTO = 24.576 MHz; Input signal is a 0 dBFS 1 kHz sine wave; data resolution is
24 bits; Serial Audio Input and Output ports set to slave; Input and output clocks and data are asynchronous
-200
+ 0
-190
-180
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
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-10
d
B
F
S
10k
90k
20k
30k
40k
50k
60k
70k
80k
H z
-200
+ 0
-190
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-90
-80
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-10
d
B
F
S
2.5k
22. 5k
5k
7.5k
10k
12.5k
15k
17.5k
20k
H z
Figure 38. Wideband FFT –
0 dBFS 1 kHz Tone, 48 kHz:48 kHz
Figure 39. Wideband FFT –
0 dBFS 1 kHz Tone, 44.1 kHz:192 kHz
-200
+ 0
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-100
-90
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-10
d
B
F
S
2.5k
22.5k
5k
7. 5k
10k
12. 5k
15k
17. 5k
20k
H z
-200
+ 0
-190
-180
-170
-160
-150
-140
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-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
2k
22k
4k
6k
8k
10k
12k
14k
16k
18k
20k
H z
Figure 40. Wideband FFT –
0 dBFS 1 kHz Tone, 44.1 kHz:48 kHz
Figure 41. Wideband FFT –
0 dBFS 1 kHz Tone, 48 kHz:44.1 kHz
-200
+ 0
-190
-180
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-110
-100
-90
-80
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-40
-30
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-10
d
B
F
S
5k
45k
10k
15k
20k
25k
30k
35k
40k
H z
-200
+ 0
-190
-180
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
F
S
2.5k
22.5k
5k
7. 5k
10k
12. 5k
15k
17. 5k
20k
H z
Figure 42. Wideband FFT –
0 dBFS 1 kHz Tone, 48 kHz:96 kHz
Figure 43. Wideband FFT –
0 dBFS 1 kHz Tone, 96 kHz:48 kHz