Figure 31. fft (192 khz, no input), Figure 32. fft (192 khz out-of-band, no input), Figure 33. fft (192 khz, -60 db wideband) – Cirrus Logic CDB4365 User Manual
Page 14: Figure 34. fft (imd 192 khz), Figure 35. 192 khz, thd+n vs. input freq, Figure 36. 192 khz, thd+n vs. level, Cdb4365
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DS670DB3
CDB4365
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20k
120k
40k
60k
80k
100k
Hz
Figure 31. FFT (192 kHz, No Input)
Figure 32. FFT (192 kHz Out-of-Band, No Input)
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
2k
20k
4k
6k
8k
10k
12k
14k
16k
18k
Hz
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
90k
50
100
200
500
1k
2k
5k
10k
20k
50k
Hz
Figure 33. FFT (192 kHz, -60 dB Wideband)
Figure 34. FFT (IMD 192 kHz)
-120
+0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20
20k
50
100
200
500
1k
2k
5k
10k
Hz
-120
+0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
-120
+0
-100
-80
-60
-40
-20
dBFS
Figure 35. 192 kHz, THD+N vs. Input Freq
Figure 36. 192 kHz, THD+N vs. Level
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