CS4222 Datasheet, PDF (17/26 Pages) Cirrus Logic – 20-Bit Stereo Audio Codec with Volume Control

tween the CS4222 ground and the board ground
should be positioned as shown in Figure 11. See
the CDB4222 evaluation board data sheet for
recommended layout of the decoupling compo-
nents.
ADC and DAC Filter Response Plots
Figures 12 through 17 show the overall fre-
quency response, passband ripple and transition
band for the CS4222 ADC’s and DAC’s.
CS4222
Digital
Ground
Plane
> 1/8"
+5V
Ferrite
Bead
Ground
Connection
Analog
Ground
Plane
Note that the CS4222
is oriented with its
digital pins towards the
digital end of the board.
CPU & Digital
Logic
Codec
digital
signals
Codec
analog
signals &
components
Figure 11. Suggested Layout Guideline (See CDB4222 Data Sheet)
DS236PP3
17