CS8421-DZZ Cirrus Logic Inc, CS8421-DZZ Datasheet - Page 33

• Manufacturer Part Number: CS8421-DZZ
• Description: Audio Sample Rate Converter IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS8421-DZZ

• Audio Control Type: Sample Rate Converter
• Control Interface: 3 Wire, Serial
• Supply Voltage Range: 2.38V To 2.62V, 3.14V To 5.25V
• Operating Temperature Range: -40°C To +85°C
• Audio Ic Case Style: TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS641F2
All performance plots represent typical performance. Measurements for all performance plots were taken under the
following conditions, unless otherwise stated:
B
S
d
F
B
F
S
d
•
•
•
•
•
•
•
•
Figure 63. THD+N vs. Frequency Input, 0 dBFS,
Figure 65. THD+N vs. Frequency Input, 0 dBFS,
-110
-115
-120
-125
-130
-135
-140
-145
-150
-155
-160
-165
-170
-175
-180
-110
-115
-120
-125
-130
-135
-140
-145
-150
-155
-160
-165
-170
-175
-180
VD = 2.5 V, VL = 3.3 V
Serial Audio Input port set to slave
Serial Audio Output port set to slave
Input and output clocks and data are asynchronous
XTI/XTO = 27 MHz
Input signal = 1.000 kHz, 0 dBFS
Measurement Bandwidth = 20 to (Fso/2) Hz
Word Width = 24 Bits
0
0
2.5k
2.5k
5k
5k
44.1 kHz:48 kHz
48 kHz:44.1 kHz
7.5k
7.5k
10k
10k
Hz
Hz
12.5k
12.5k
15k
15k
17.5k
17.5k
20k
20k
B
F
S
d
B
F
S
d
-110
-115
-120
-125
-130
-135
-140
-145
-150
-155
-160
-165
-170
-175
-180
-110
-115
-120
-125
-130
-135
-140
-145
-150
-155
-160
-165
-170
-175
-180
Figure 66. THD+N vs. Frequency Input, 0 dBFS,
Figure 64. THD+N vs. Frequency Input, 0 dBFS,
0
-140
2.5k
-120
5k
-100
96 kHz:48 kHz
48 kHz:96 kHz
7.5k
-80
dBFS
10k
Hz
-60
12.5k
-40
15k
17.5k
-20
CS8421
20k
+0
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