Figure 41. 48 khz, fade-to-noise linearity, Figure 42. 48 khz, frequency response, Figure 43. 48 khz, crosstalk – Cirrus Logic CDB4270 User Manual
Page 32: Figure 44. 48 khz, impulse response, Figure 45. fft (96 khz, 0 db), Figure 46. fft (96 khz, -60 db), Cdb4270
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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)
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