CDB42L55
-60
-65
-70
-75
+0
-20
-40
d
B
r
A
-80
-85
-90
-95
-100
-105
-110
Master Volume
(Digital)
Headphone Volume
(Analog)
d
B
r
A
-60
-80
-100
-120
-115
-120
-140
20
50
100
200
500
1k
2k
5k
10k 20k
-50
-40
-30
-20
-10
+0
Hz
dBr A
Figure 20. THD+N vs. Volume - Digital In to HP Out
+0
-20
-40
d
d
Figure 21. FFT - Digital In to HP Out @ 0 dBFS
+0
-20
-40
B
-60
B
-60
r
A
-80
-100
-120
r
A
-80
-100
-120
-140
20
50
100
200
500
1k
2k
5k
10k 20k
-140
20
50
100
200
500
1k
2k
5k
10k 20k
Hz
Figure 22. FFT - Digital In to HP Out @ -60 dBFS
+3
Hz
Figure 23. FFT - Digital In to HP Out - no input
+40
+30
+2
+20
d
B
r
A
+1
+0
-1
d
B
r
A
+10
+0
-10
-20
-2
-30
-3
20
50
100
200
500
1k
2k
5k
10k 20k
-40
-125
-100
-75
-50
-25
+0
Hz
Figure 24. Freq. Response - Digital In to HP Out
DS773DB1
dBFS
Figure 25. Fade-to-Noise Linearity- Digital In to HP Out
21
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