• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 29 subscribers
  • Views 957 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PCM2706 Not Recognized in Windows when FSEL is LOW

Akio Ito
Genius 3595 points
Other Parts Discussed in Thread: PCM2706

Hi,

I received a question about PCM2706 from our customer.
When FSEL is HIGH, Windows recognizes PCM2706 as a USB DAC device.
On the other hand when FSEL is LOW, Windows does not recognize PCM2706.
Is there any method that PCM2706 can be recognized by Windows, even if FSEL is LOW?
The conditions are as follows;
PSEL is LOW: self-powered.
HOST is HIGH : connected to VBUS.
DOUT is unused
FUNC0-3 are unused

Best regards,
Akio Ito

  • 0
    TI__Guru** 110745 points
    Hi Ito-san,

    Are you using an EVM? If the answer is no, could you share your schematic?
    Is there a chance that something else is being modified as FSEL is pulled low?
    If I2S port (DOUT/FUNC0-3) will not be used, why setting FSEL = low? In I2S mode the USB streaming to analog output (Vout) is not available.

    Best regards,
    -Ivan Salazar
    Texas Instruments
  • 0 in reply to Ivan Salazar
    Genius 3595 points

    Ivan-san,

    Thank you for the answer.
    I will confirm it and reply again next year, because our customer is already in New Year holiday.

    Best regards,
    Akio Ito