CS8420-DSZR View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS8420-DSZR

Digital Audio Sample Rate Converter

Cirrus Logic 

ILRCK

Left

Justified ISCLK

(In)

SDIN MSB

Channel A

LSB

MSB

Channel B

CS8420

LSB

MSB

ILRCK

Channel A

Channel B

I²S

ISCLK

(In)

SDIN

MSB

LSB

MSB

LSB

MSB

Right

Justified

(In)

ILRCK

ISCLK

SDIN

Channel A

MSB

LSB

Channel B

MSB

LSB

SIMS

SISF SIRES1/0 SIJUST SIDEL SISPOL SILRPOL

Left-Justified

X

X

00

0

0

0

0

I²S

X

X

00+

0

1

0

1

Right-Justified

X

X

XX*

1

0

0

0

X = don’t care to match format, but does need to be set to the desired setting

+ I²S can accept an arbitrary number of bits, determined by the number of ISCLK cycles

* not 11 - See Serial Input Port Data Format Register Bit Descriptions for an explanation of the meaning of each bit

Figure 17. Serial Audio Input Example Formats

20

DS245F4

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