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Old 20th February 2008, 11:51 PM   #11
maxpou is offline maxpou  Canada
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Hi
Quote:
Originally posted by error401


There are two WDCLK modes for this DAC. See the timing diagram headings, the modes are selected by MS. When MS is high, WDCLK is just LRCK * 2. You can probably just ignore this though, since it's not needed for the TI DAC.


As rfbrw says, all the signals you need are there (LRCK, BCLK, DIN) except for the system or master clock input. I think you can find that on the SM5807 XTI pin. It should be 16.9344MHz, which is suitable for PCM1754. PCM1754 can run at 5V, so level shifting is not required. I think this should work without much trouble, but obviously you need a whole new output stage.
How should selected the FMT pin in PCM1754?

i forgot to tell you i don't have the digital filter (sm5807). I changed my output stage with only a jfet source follower.
Thank you! Maxpou
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Old 21st February 2008, 02:14 AM   #12
maxpou is offline maxpou  Canada
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Hi,
i think have understand, i thought SCK was the same think then WDCLK, but SCK and master clock is the same think! I changed my master clock with PLL1705 from TI. Maxpou
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Old 21st February 2008, 09:40 AM   #13
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You can connect the PCM1754 directly to the KS9211B as the TI chip has the digital filter built into it.
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Old 21st February 2008, 05:51 PM   #14
maxpou is offline maxpou  Canada
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Hi Guys,
thank you very much, now i have a new DAC in my CD player and in my first listen i appreciated the sound stage and the high frequency is more soft and detailled. I'm very happy! Thank you again guys! it's very appreciated. Maxpou
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