CS42448 datasheet(32/64 Pages) CIRRUS

32 / 64 page

DS648F2

CS42448

4.5.1

I²S

4.5.2

Left-Justified

4.5.3

Right-Justified

4.5.4

OLM #1

OLM #1 serial audio interface format operates in Single- or Double-Speed Mode only and will master or

slave ADC/DAC_SCLK at 128 Fs.

ADC/DAC_LRCK

ADC/DAC_SCLK

MS B

LS B

MS B

LS B

AOUT 1, 3, 5 or 7

Left C h an nel

Rig ht C h an n el

ADC_SDOUTx

DAC_SDINx

AOUT 2, 4, 6 or 8

MSB

AIN 1, 3, or 5

AIN 2, 4, or 6

Figure 15. I²S Format

ADC/DAC_LRCK

ADC/DAC_SCLK

MS B

LS B

MS B

LS B

AOUT 1, 3, 5 or 7

L eft C h ann el

Right C h a n n el

ADC_SDOUTx

DAC_SDINx

AOUT 2, 4, 6 or 8

MSB

AIN 1, 3, or 5

AIN 2, 4, or 6

Figure 16. Left Justified Format

ADC/DAC_LRCK

ADC/DAC_SCLK

MS B

LS B

MS B

LS B

AOUT 1, 3, 5 or 7

Left C h a nnel

Rig ht C han nel

ADC_SDOUTx

DAC_SDINx

AOUT 2, 4, 6 or 8

AIN 1, 3, or 5

AIN 2, 4, or 6

Figure 17. Right Justified Format

ADC/DAC_LRCK

ADC/DAC_SCLK

LSB

MSB

20 clks

64 clks

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

20 clks

Left Channel

Right Channel

20 clks

AIN1

20 clks

ADC_SDOUT1

DAC_SDIN1

20 clks

AOUT7

AOUT1

AOUT3

AOUT5

AOUT2

AOUT4

AOUT6

20 clks

AOUT8

DAC_SDIN4

AIN3

AIN2

AIN4

Figure 18. One-Line Mode #1 Format

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