Is I2S at 1 x fs?

Posted by: jsuen

Is I2S at 1 x fs? - 09/09/2003 07:08

I am currently brain-storming a project of interfacing the Empeg player directly to a DAC chip, using the I2S signals and thus bypassing the SPIDF output and digital receiver/filter. The DAC used will accept I2S signals (system clock, word select and data) directly. No oversampling will be used. I would like to know if the I2S signals tapped from the I2S pads are at 1x fs (44.1kHz).

Info on non-oversampling DAC can be obtained in the digital forum of the audioasylum or diyaudio website.
Posted by: maczrool

Re: Is I2S at 1 x fs? - 09/09/2003 08:20

Yes they are.

Stu
Posted by: jsuen

Re: Is I2S at 1 x fs? - 09/09/2003 08:56

Thanks a lot.
Posted by: maczrool

Re: Is I2S at 1 x fs? - 09/09/2003 12:21

You're welcome. Be sure to buffer those I2S signals before sending to your DAC. They won't drive cable without it.

Stu
Posted by: jsuen

Re: Is I2S at 1 x fs? - 10/09/2003 01:04

This will be a one-box design. The Empeg player and the DAC will be in the same enclosure. I will keep the signal cables feeding the I2S short.
Posted by: maczrool

Re: Is I2S at 1 x fs? - 10/09/2003 18:29

That's fine, but even 6 inches is too lonb in my experience. Believe me I know, because I sell the I2S boards in the S/PDIF link above. You WILL need a buffer unless you enjoy listening to continuous dropouts. If you need any help with that let me know.

Stu
Posted by: jsuen

Re: Is I2S at 1 x fs? - 11/09/2003 02:25

Sure. Thanks!