cs5340 Cirrus Logic, Inc., cs5340 Datasheet - Page 19

• Manufacturer Part Number: cs5340
• Description: 101 Db, 192 Khz, Multi-bit Audio A/d Converter
• Manufacturer: Cirrus Logic, Inc.

DS601F2
4.8
Capacitor Size on the Reference Pin (FILT+)
The CS5340 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
capacitor values used to optimize low frequency distortion performance. This plot was taken using the
CDB5340 evaluation platform, with the device running in Single-Speed Mode and VA=VD=VL=5 V.
100 uF
2.2 uF
3.3 uF
4.7 uF
10 uF
47 uF
1 uF
5.6 uF
6.8 uF
22 uF
Figure 22. CS5340 THD+N versus Frequency
Confidential Draft
3/11/08
Figure
22, with larger
CS5340
19