Cirrus Logic CDB4349 - Manual (Page 8)

8 DS782DB1
CDB4349
-40
+40
-35
-30
-25
-20
-15
-10
-5
+0
+5
+10
+15
+20
+25
+30
+35
d
B
r
A
-140 +0 -120 -100 -80 -60 -40 -20
dBFS
-110
+0
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
-120 +0 -100 -80 -60 -40 -20
dBFS
Figure 7. THD+N vs Level 1 kHz, FS = 48 kHz Figure 8. Fade-to-Noise Linearity 1 kHz, FS = 48 kHz
-2
2
-1.75
-1.5
-1.25
-1
-750m
-500m
-250m
0
250m
500m
750m
1
1.25
1.5
1.75
V
0 3m 500u 1m 1.5m 2m 2.5m
sec
-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
Figure 9. Impulse Response, FS = 48 kHz Figure 10. FFT Crosstalk Ch. A to Ch. B 1 kHz,
FS = 48 kHz
-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
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
Figure 11. FFT Crosstalk Ch. B to Ch. A 1 kHz,
FS = 48 kHz
Figure 12. FFT 0 dBFS, FS = 96 kHz