Cirrus-logic CS8421 Manuel d'utilisateur télécharger pdf (Page 32)

32 DS641F6

CS8421

All performance plots represent typical performance. Measurements for all performance plots were taken under the

following conditions, unless otherwise stated:

• 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

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0 20k2.5k 5k 7.5k 10k 12.5k 15k 17.5k

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dBFS

Figure 63. THD+N vs. Frequency Input, 0 dBFS, 48 kHz:44.1 kHz

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Figure 65. THD+N vs. Frequency Input, 0 dBFS, 44.1 kHz:48 kHz

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Cirrus-logic CS8421 Manuel d'utilisateur Page 32

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