Cirrus-logic CS8420 Manuel d'utilisateur télécharger pdf (Page 65)

DS245F4 65

CS8420

13.4.1 Pin Description - Hardware Mode 3

Overall Device Control:

DFC0, DFC1 - Data Flow Control Inputs

DFC0 and DFC1 inputs determine the major data flow options available in Hardware mode, according to Table 5.

OMCK - Output Section Master Clock Input

Output section master clock input. The frequency must be 256x the output sample rate (Fso).

Audio Input Interface:

SDIN - Serial Audio Input Port Data Input

Audio data serial input pin. This data will be transmitted out the AES3 port.

ISCLK - Serial Audio Input Port Bit Clock Input

Serial bit clock for audio data on the SDIN pin.

ILRCK - Serial Audio Input Port Left/Right Clock Input

Word rate clock for the audio data on the SDIN pin. The frequency will be at the output sample rate (Fso)

Audio Output Interface:

SDOUT - Serial Audio Output Port Data Output

Audio data serial output pin. This is also a start-up option pin, and requires a pull-up or pull-down resistor.

OSCLK - Serial Audio Output Port Bit Clock Input or Output

Serial bit clock for audio data on the SDOUT pin.

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Cirrus-logic CS8420 Manuel d'utilisateur Page 65