CS4216 datasheet(26/58 Pages) CIRRUS

26 / 58 page

which will minimize the socket impedance.

When using a through hole socket, the vias un-

der the codec in Figure 19 are not needed since

the pins serve the same function.

ADC and DAC Filter Response Plots

Figures 21 - 26 shows the overall frequency re-

sponse, passband ripple and transition band for

the CS4216 ADCs and DACs. Figure 27 shows

the DACs’ deviation from linear phase.

Fs is defined as the selected sample frequency

and is also the SSYNC frequency. Since the

sample frequency is programmable, the filters

will adjust to the selected sample frequency.

Digital

Ground

Plane

Note that the CS4216

is oriented with its

digital pins towards the

digital end of the board.

CPU & Digital

Logic

Codec

digital

signals

Codec

analog

signals &

Components

> 1/8"

CS4216

+5V

Ferrite

Bead

Ground

Connection

Analog

Ground

Plane

Figure 18. CS4216 Board Layout Guideline

CS4216

DS83F2

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