CS8420 serial in-> spdif out. - Page 2

Achimek · 19th March 2003, 11:09 AM

perhaps it it usefull to apply a masterclock to omck. if you take the recovered clock, the device will not start up correctly, because ther is an initialisation routine configuring the device. i think this routine does not start because tere is no valid clock, perhaps rmck is an input or tree state at startup and it never intializes itself. try to connect the signal of pin 31, it should be the masterclk of the cs4226 or better an oszillator with 24,564 Mhz.
-->96KHz

good luck

A 8 · 21st March 2003, 01:15 PM

Thx Achimek!

You were spot on....I feel a bit stupid for missing it.
Anyway it works perfect and for those considering doing the same, the motorola dsp talkes to the Cirrus dac chip through I2S in all formats DD, DTS and PCM in my pioneer AV Reciever.

Just hoping I am not loosing any bits

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19th March 2003, 11:09 AM	#11
Achimek diyAudio Member Join Date: Mar 2003 Location: Aachen	perhaps it it usefull to apply a masterclock to omck. if you take the recovered clock, the device will not start up correctly, because ther is an initialisation routine configuring the device. i think this routine does not start because tere is no valid clock, perhaps rmck is an input or tree state at startup and it never intializes itself. try to connect the signal of pin 31, it should be the masterclk of the cs4226 or better an oszillator with 24,564 Mhz. -->96KHz good luck

21st March 2003, 01:15 PM	#12
A 8 diyAudio Member Join Date: Mar 2003 Location: Gothenburg	Thx Achimek! You were spot on....I feel a bit stupid for missing it. Anyway it works perfect and for those considering doing the same, the motorola dsp talkes to the Cirrus dac chip through I2S in all formats DD, DTS and PCM in my pioneer AV Reciever. Just hoping I am not loosing any bits