CS4336 Cirrus Logic, CS4336 Datasheet - Page 20

• Manufacturer Part Number: CS4336
• Description: (CS4334 - CS4339) Stereo D/A Converter
• Manufacturer: Cirrus Logic

4.11 High Rate Mode Performance Plots
20
d
B
A
r
All measurements were taken from the CDB4334 evaluation board using the Audio Precision Dual Domain
d
B
A
r
-100
-110
-120
-130
-140
(THD+N plots measured using a 1kHz 24-bit dithered input signal)
d
B
A
-100
-110
r
-100
-110
-120
-130
-140
-100
-110
-10
-20
-30
-40
-50
-60
-70
-80
-90
-60
-70
-80
-90
-100
-110
-120
-130
-140
+0
-60
-70
-80
-90
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-100
-110
-120
-130
-140
-100
-110
-120
-130
-140
+0
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
+ 0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-60
-60
+0
-100
-110
-120
-130
-140
Figure 33. Idle Channel Noise FFT (HRM)
-10
-20
-30
-40
-50
-60
-70
-80
-90
+0
Figure 35. THD+N vs. Amplitude (HRM)
2k
2k
2k
Figure 31. 0 dBFS FFT (HRM)
2k
2k
2k
-50
-50
(16k FFT of a 1 kHz input signal)
4k
4k
4k
4k
4k
4k
(16k FFT with no input signal)
6k
-40
6k
6k
-40
6k
6k
6k
8k
8k
8k
8k
8k
8k
dBFS
dBFS
-30
-30
10k
10k
10k
Hz
Hz
Hz
10k
10k
Hz
10k
Hz
Hz
12k
12k
12k
12k
12k
12k
-20
-20
14k
14k
14k
14k
14k
14k
-10
-10
16k
16k
16k
16k
16k
16k
System Two Cascade.
18k
18k
18k
18k
18k
18k
+0
+0
20k
20k
20k
20k
20k
20k
(16k FFT of intermodulation distortion using 13 kHz and 14 kHz input signals)
d
B
A
A ud io P re c is io n
r
B
A
d
r
-100
-110
-120
-130
-140
B
A
-100
-110
d
r
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-100
-110
-120
-130
-140
-90
-100
-110
+0
-100
-110
-120
-130
-140
-10
-20
-30
-40
-50
-60
-70
-80
-100
-110
-10
-20
-30
-40
-50
-60
-70
-80
-90
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
+ 0
+0
+0
(THD+N plots measured using a 1kHz 24-bit dithered input signal)
+0
-90
-10
-20
-30
-40
-50
-60
-70
-80
-100
-110
-120
-130
-140
+0
-10
-20
-30
-40
-50
-60
-70
-80
-90
+ 0
20
20
20
Figure 36. THD+N vs. Frequency (HRM)
Figure 34. Twin Tone IMD FFT (HRM)
2k
2k
2k
Figure 32. -60 dBFS FFT (HRM)
2k
2k
2k
50
50
50
4k
4k
4k
100
4k
4k
4k
100
100
(16k FFT of a 1 kHz input signal)
D -A C C IF IMD vs A MP L ITUD E
6k
6k
6k
6k
200
6k
6k
200
200
8k
8k
8k
8k
8k
8k
500
500
500
Hz
Hz
Hz
CS4334/5/6/7/8/9
10k
10k
10k
Hz
Hz
10k
10k
10k
Hz
Hz
Hz
Hz
1k
1k
1k
12k
12k
12k
12k
12k
12k
2k
2k
2k
14k
14k
14k
14k
14k
14k
5k
5k
5k
0 8 /0 5 /9 9 1 1 :1 1 :3 6
16k
16k
16k
16k
16k
16k
10k
10k
10k
DS248PP3
18k
18k
18k
18k
18k
18k
20k
20k
20k
20k
20k
20k
20k
20k
20k