CS42448 datasheet(37/70 Pages) CIRRUS

tên linh kiện	CS42448

Giải thích chi tiết về linh kiện	108 dB, 192 kHz 6-in, 8-out CODEC

PDF	70 Pages

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nhà sản xuất	CIRRUS [Cirrus Logic]

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37 / 70 page

DS648PP2

4.6

AUX Port Digital Interface Formats

These serial data lines are used when supporting the TDM Mode of operation with an external ADC or

S/PDIF receiver attached. The AUX serial port operates only as a clock master. The AUX_SCLK will op-

erate at 64xFs, where Fs is equal to the ADC sample rate (ADC_LRCK). If the AUX_SDIN signal is not

being used, it should be tied to AGND via a pull-down resistor.

The AUX port will operate in either the Left Justified or I²S digital interface format with bit depths ranging

from 16 to 24 bits. Settings for the AUX port are made through the register “Interface Formats (address

04h)” on page 47.

4.6.1 I²S

4.6.2 Left Justified

AUX_LRCK

AUX_SCLK

MS B

LS B

MS B

LS B

AUX1

Left C h an ne l

R ig h t C h an n e l

AUX_SDIN

AUX2

MSB

Figure 21. AUX I²S Format

AUX_LRCK

AUX_SCLK

MS B

LS B

MS B

LS B

AUX1

L e ft C hanne l

R ig h t C han ne l

AUX_SDIN

AUX2

MSB

Figure 22. AUX Left Justified Format

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