Cirrus Logic CDB42L55 - Manual (Page 22)

22 DS773DB1
CDB42L55
-100
-60
-95
-90
-85
-80
-75
-70
-65
d
B
r
A
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
Figure 26. FFT Crosstalk - Digital In to HP Out @ 0 dBFS Figure 27. THD+N vs. Freq. - Digital In to Line Out
-140
+0
-120
-100
-80
-60
-40
-20
d
B
r
A
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
-100
-60
-95
-90
-85
-80
-75
-70
-65
d
B
r
A
-100 +0 -80 -60 -40 -20
dBFS
-120
-50
-110
-100
-90
-80
-70
-60
d
B
r
A
-60 +0 -50 -40 -30 -20 -10
dBr A
Figure 28. THD+N vs. Amplitude - Digital In to Line Out Figure 29. THD+N vs. Volume - Digital In to Line Out
Master Volume
(Digital)
Line Volume
(Analog)
-140
+0
-120
-100
-80
-60
-40
-20
d
B
r
A
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
-140
+0
-120
-100
-80
-60
-40
-20
d
B
r
A
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
Figure 30. FFT - Digital In to Line Out @ 0 dBFS Figure 31. FFT - Digital In to Line Out @ -60 dBFS