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Old 25th November 2012, 04:39 AM   #11
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I have not used the TP board but I have built my own from perf and I used a 12mhz xtal, as exactly per the spec sheet (12 is the only choice you have in HW mode). I have not used sw mode yet but anything below and including 96k 'just automatically works' in hw mode.

maybe I got lucky with all the right i2s lines. I had to do zero work other than connect 3 clocks and 1 data to the chip, set it up as an spdif transmitter and whatever rate I put in from the audio widget, the wolfson obliged and I was able to see all the samplerates come out.

the chip is great for spdif tx.

its spdif-rx that it has limited success in, for hw mode and 176/192k.

but when you send it i2s, I have not found a SR that did not work, including 44.1
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Old 26th November 2012, 06:18 AM   #12
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Quote:
Originally Posted by leres View Post
I was able to get a CS8406 working but I needed to find OMCK and feed that to the CS8406 in addition to SCLK, LRCLK and SDIN. I had a lot of dropouts but I think it was because I had wires everywhere and nothing was shielded. I'm going to wire up a permanent version this weekend and see if I can make it work better.
I finally had a few minutes to play around and now that I know all 4 signals needed (serial data, serial clock, L/R clock and master clock) I was able to get both the cirrus CS8406 and the wolfson WM8804 to produce S/PDIF.
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