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CS4334/5/8/9
4.11
High Rate Mode Performance Plots
-140
+0
-130
-120
-110
-100
-90
-80
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-60
-50
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-10
d
B
r
A
2k
20k
4k
6k
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14k
16k
18k
Hz
2k
4k
6k
8k
10k
12k
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18k
-140
-130
-120
-110
-100
-90
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-40
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-10
+0
dB
rA
Hz
20k
+0
-10
-20
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dB
rA
2k
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Hz
-140
+0
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-10
d
B
r
A
2k
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18k
Hz
2k
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18k
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dBr
A
Hz
20k
+0
-10
-20
-30
-40
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-90
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-110
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-130
-140
dB
rA
2k
6k
4k
8k
10k
12k
14k
16k
18k
20k
Hz
(16k FFT of a 1 kHz input signal)
Figure 29. 0 dBFS FFT (HRM)
(16k FFT of a 1 kHz input signal)
Figure 30. -60 dBFS FFT (HRM)
-140
+0
-130
-120
-110
-100
-90
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-50
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-30
-20
-10
d
B
r
A
2k
20k
4k
6k
8k
10k
12k
14k
16k
18k
Hz
2k
4k
6k
8k
10k
12k
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16k
18k
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dB
rA
Hz
20k
+0
-10
-20
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-40
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-90
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dBr
A
2k
6k
4k
8k
10k
12k
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18k
20k
Hz
A udio P recis io n
08/05/99 11:11:36
D-A CCIF IMD vs A MP L IT UD E
-140
+0
-130
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-100
-90
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-20
-10
d
B
r
A
2k
20k
4k
6k
8k
10k
12k
14k
16k
18k
Hz
2k
4k
6k
8k
10k
12k
14k
16k
18k
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
dB
rA
Hz
20k
+0
-10
-20
-30
-40
-50
-60
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-80
-90
-100
-110
-120
-130
-140
dB
rA
2k
6k
4k
8k
10k
12k
14k
16k
18k
20k
Hz
(16k FFT with no input signal)
Figure 31. Idle Channel Noise FFT (HRM)
(16k FFT of intermodulation distortion using 13 kHz and 14 kHz input signals)
Figure 32. Twin Tone IMD FFT (HRM)
-110
-60
-100
-90
-80
-70
d
B
r
A
-60
+0
-50
-40
-30
-20
-10
dBFS
-50
-40
-30
-20
-10
dBFS
-60
+0
-110
-100
-90
-80
-70
-60
dB
rA
-110
+0
-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
-110
-100
-90
-80
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-60
-50
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-30
-20
-10
+0
d
B
r
A
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
100
50
200
500
1k
2k
5k
10k
Hz
20
20k
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
dB
rA
(THD+N plots measured using a 1kHz 24-bit dithered input signal)
Figure 33. THD+N vs. Amplitude (HRM)
(THD+N plots measured using a 1kHz 24-bit dithered input signal)
Figure 34. THD+N vs. Frequency (HRM)
All measurements were taken from the CDB4334 evaluation board using the Audio Precision Dual Domain
System Two Cascade.
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