CS42416 datasheet(17/67 Pages) CIRRUS

17 / 67 page

CS42416

bits in the register “Interface Formats (address 04h)” on page 34. The serial audio data is presented in 2's

complement binary form with the MSB first in all formats.

DAC_SDIN1, DAC_SDIN2, and DAC_SDIN3 are the serial data input pins supplying the internal DAC.

ADC_SDOUT, the ADC data output pin, carries data from the two internal 24-bit ADCs and, when con-

figured for one-line mode, up to four additional ADC channels attached externally to the signals ADCIN1

and ADCIN2 (typically two CS5361 stereo ADCs). When operated in One Line Data Mode, 6 channels of

DAC data are input on DAC_SDIN1 and 6 channels of ADC data are output on ADC_SDOUT. Table 5

outlines the serial port channel allocations.

Serial Inputs / Outputs

DAC_SDIN1

left channel

right channel

one line mode

DAC #1

DAC #2

DAC channels 1,2,3,4,5,6

DAC_SDIN2

left channel

right channel

one line mode

DAC #3

DAC #4

not used

DAC_SDIN3

left channel

right channel

one line mode

DAC #5

DAC #6

not used

ADC_SDOUT

left channel

right channel

one line mode

ADC #1

ADC #2

ADC channels 1,2,3,4,5,6

ADCIN1

left channel

right channel

External ADC #3

External ADC #4

ADCIN2

left channel

right channel

External ADC #5

External ADC #6

Table 5. Serial Audio Port Channel Allocations

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