Cirrus Logic CDB4270 - Manual (Page 32)

32 DS686DB3
CDB4270
-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
-5
+5
-4
-3
-2
-1
+0
+1
+2
+3
+4
d
B
r
A
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
Figure 41. 48 kHz, Fade-to-Noise Linearity Figure 42. 48 kHz, Frequency Response
-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
T TTTTTTTTTT TT TT TT TTTTTTTT TTTT TT T T TT
-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
Figure 43. 48 kHz, Crosstalk Figure 44. 48 kHz, Impulse Response
-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 45. FFT (96 kHz, 0 dB) Figure 46. FFT (96 kHz, -60 dB)