If you use the circuit here
http://www.diyaudio.com/forums/showthread.php?threadid=21749
but invert it?
http://www.diyaudio.com/forums/showthread.php?threadid=21749
but invert it?
Using the above linked circuit will NOT convert SPDIF to IIS.
Spdif is a serial format with embedded clock and protocol information contained within the serial data. IIS is a different sort of 'serial' format. There are two clocks - BCK, a bit clock, to clock each bit of the signal in, LRCK, to determine if the data is left or right channel information, and DATA the data.
The data has no packet information, or error correction. It is pure music information data for both channels.
You will need a protocol adaptor. Look at AKM (Asahi Kasei) semiconductor, they make several types. A DIR is the input (SPDIF to IIS) transceiver, the DIT is the output (IIS to SPDIF) transceiver.
Hope this helps,
apollyon25
Spdif is a serial format with embedded clock and protocol information contained within the serial data. IIS is a different sort of 'serial' format. There are two clocks - BCK, a bit clock, to clock each bit of the signal in, LRCK, to determine if the data is left or right channel information, and DATA the data.
The data has no packet information, or error correction. It is pure music information data for both channels.
You will need a protocol adaptor. Look at AKM (Asahi Kasei) semiconductor, they make several types. A DIR is the input (SPDIF to IIS) transceiver, the DIT is the output (IIS to SPDIF) transceiver.
Hope this helps,
apollyon25
I think using the delay for DATA instead of LRCK will work.(In the scheme, exchange pins 2 and 3 at the input, and at the output the 3 different delayed WS will be DATA instead and DATA will be LRCK/WS)
I can't tell if it will work, try it or ask CM.
(BCK could have to be inverted . . .)
I can't tell if it will work, try it or ask CM.
(BCK could have to be inverted . . .)
Oops, the link I told wasn't the same thing:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=25177&perpage=10&highlight=&pagenumber=3
I2S.ZIP
http://www.diyaudio.com/forums/showthread.php?s=&threadid=25177&perpage=10&highlight=&pagenumber=3
I2S.ZIP
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