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    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      I'm thinking that the word clock should rise when the bitclock rises, and that's the reason for the issues. Is there a setting somewhere to change the clock timing on the i.MX RT1060 SAI? While listening more to the DAC, I would say it also is...
    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      I'm going to fire back up the 6140 and take captures of it to see what it looks like!
    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      Yes but my phone auto uploads to the Internet for easy retrieval. As opposed to swapping devices. But eh, maybe I'll try that next time. Thanks! If it's in spec, what else can I look at? Thanks for taking the time! FYI, I have a TLV320ADC6140...
    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      There must be some mismatch in my ADC configuration. The 3105 must be putting the ADC on the wrong bitrate or something. Hmm. TI did mention that they find it unlikely that the clocks are at fault. If it works for I2S mode then it should work...
    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      Hello MarkT, Thanks for the advice. I didn't know. But you are right, it looks better maybe when 10x is enabled on the probe, and 10x is also enabled on the scope. I presume that's how it's done. My yellow probe is broken, so the 10x switch...
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    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      I2S mode works great with both DAC and ADC. It sounds good. But doesn't this look funny still with the data lines seemingly behind the clock. It should be on the rising edge, right?
      • Screenshot 2023-12-28 144231.png
    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      Fixed the BCLK (disconnected ground on the probe). And played a 1kHz sine wave from USB>Mainboard>3105> and from Phone>3105>Mainboard. Purple is DAC and BLUE is ADC... It seems off to me. The ADC is too far right. TI said this shouldn't be the...
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    • J
      JayShoe replied to the thread TLV320AIC3105 Codec in TDM mode.
      First shot from the scope. Yellow = LRCLK Purple = DAC Data (out of mainboard, into 3105) Green = ADC Output directly from 3105 Blue = ADC Output after buffer Based on this. It does appear that the buffer has nearly zero delay to be...
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