CS4340
+0
-10
-20
+0
-10
-20
-30
-40
-30
-40
-50
-50
-60
-60
d
B
r
d
B
r
-70
-70
A
A
-80
-80
-90
-90
-100
-110
-120
-130
-100
-110
-120
-130
-140
-140
2k
4k
6k
8k
10k
Hz
12k
14k
16k
18k
20k
2k
4k
6k
8k
10k
Hz
12k
14k
16k
18k
20k
Figure 27. FFT 0 dB input, BRM, VA = 5V
Figure 28. FFT -60 dB input, BRM, VA = 5V
+0
-10
-20
+20
+18
+16
+14
-30
-40
+12
+10
+8
+6
+4
+2
+0
-2
-50
-60
d
B
r
d
B
r
-70
A
A
-80
-90
-100
-110
-120
-130
-4
-6
-8
-10
-100
-140
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
2k
4k
6k
8k
10k
Hz
12k
14k
16k
18k
20k
dBFS
Figure 29. FFT Idle Noise, BRM, VA = 5V
Figure 30. Fade-to-Noise Linearity, BRM, VA = 5V
-85
-86
-85
-86
-87
-88
-87
-88
-89
-89
-90
-90
-91
-91
-92
-92
-93
-93
d
B
r
d
B
r
-94
-94
-95
-95
-96
-96
A
A
-97
-97
-98
-98
-99
-99
-100
-101
-102
-103
-104
-105
-100
-101
-102
-103
-104
-105
-60
20
50
100
200
500
1k
2k
5k
10k
20k
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
+0
Hz
dBFS
Figure 31. THDN vs Ampl, BRM, VA = 5V
Figure 32. THDN vs Freq, BRM, VA = 5V
DS297PP3
23
CIRRUS [ CIRRUS LOGIC ]
