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Thomas some answers

Thomas,

From what I have read AUDIOENGR uses the TI PCM2707, this is a DAC with SPDIF output. He probably made up a small board with this on it and the supporting circuitry and links the TTL level SPDIF signal directly into the SPDIF reciever at the same level.

The clock into the PCM2707 is not as critical because it is going into a quality clock generator for all the internal stuff (sigma-delta output filters, SPDIF clocking, internal USB, etc). Therefore there is no need to have a secondary PLL for this. The SPDIF is already to go out of the PCM2707.

My dac does use the ASYNC mode and I2S out to the dac is rock on and some of the best sqaure wave preformance I have seen from a digital receiver.

Thanks
Gordon
J. Gordon Rankin

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