CS8421 Cirrus Logic, CS8421 Datasheet - Page 30

• Manufacturer Part Number: CS8421
• Description: 32-bit 192 kHz Asynchronous Sample Rate Converter
• Manufacturer: Cirrus Logic

30
Figure 45. Dynamic Range vs. Output Sample Rate, -
Figure 49. Dynamic Range vs. Output Sample Rate, -
d
B
F
S
Figure 47. Frequency Response with 0 dBFS Input
d
B
F
S
B
F
S
d
-122.5
-127.5
-132.5
-137.5
-142.5
-147.5
-122.5
-127.5
-132.5
-137.5
-142.5
-147.5
-120
-125
-130
-135
-140
-145
-150
-120
-125
-130
-135
-140
-145
-150
-100
-120
-140
-20
-40
-60
-80
+0
0
60 dBFS 1 kHz Tone, Fsi = 96 kHz
60 dBFS 1 kHz Tone, Fsi = 48 kHz
50k
50k
192 kHz:32 kHz
10k
75k
75k
20k
100k
100k
192 kHz:48 kHz
Hz
Hz
30k
Hz
125k
125k
40k
150k
150k
192 kHz:96 kHz
50k
175k
175k
60k
B
S
d
F
B
S
d
F
d
B
F
S
Figure 50. Linearity Error, 0 to -140 dBFS Input, 200 Hz
Figure 46. Dynamic Range vs. Output Sample Rate, -
-122.5
-127.5
-132.5
-137.5
-142.5
-147.5
-0.02
-0.04
-0.06
-0.08
-0.12
-0.14
-0.16
-0.18
-100
-110
-120
-130
-140
-120
-125
-130
-135
-140
-145
-150
-0.1
-0.2
-10
-20
-30
-40
-50
-60
-70
-80
-90
+0
+0
-140
Figure 48. Passband Ripple, 192 kHz:48 kHz
0
60 dBFS 1 kHz Tone, Fsi = 44.1 kHz
50k
-120
5k
75k
Tone, 48 kHz:48 kHz
-100
10k
100k
-80
dBFS
Hz
Hz
125k
-60
15k
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-40
150k
20k
-20
CS8421
175k
DS641F2
25k
+0