cs5381 Cirrus Logic, Inc., cs5381 Datasheet - Page 19

• Manufacturer Part Number: cs5381
• Description: 120 Db, 192 Khz Stereo A/d Converter
• Manufacturer: Cirrus Logic, Inc.

CS5381
3.9
Capacitor Size on the Reference Pin (FILT+)
The CS5381 requires an external capacitance on the internal reference voltage pin, FILT+. The size of this
decoupling capacitor will affect the low frequency distortion performance as shown in
Figure
25, with larger
capacitor values used to optimize low frequency distortion performance. The THD+N curves in
Figure 25
were measured with VA=VD=VL=5 V in Single-Speed Master Mode with a full-scale sinewave input.
1 uF
10 uF
22 uF
47 uF
100 uF
220 uF
Figure 25. CS5381 THD + N versus Frequency
DS563F2
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