DIY I2S to simultaneous converter PCB

[ryanj]

Hi ymwong,

I still have PCBs in stock.

 

[kokonut]

Hello Ryan,


thanks for the fast answer, can you tell me please where the screw holes are located. 5mm from every edge ?


best regards
Karsten

 

[ymwong]

Thanks, Karsten, for the link.

Ryan, thanks also for your reply. Order placed with a question...

Regards,
ym

 

[JCMcNeil]

Would there be any advantage in using a good master clock signal to reclock after this board?

I used a (what seems to me to be a) similar circuit previously to convert i2s to the signals needed for an AD1865N-K and it seemed to add some jitter.

 

[Ben Mah]

The circuit has reclocking with flip-flops at its output. BCK provides the clock signal.

I use this board and it sounds good to me. However all parts of the digital chain contribute to the sound of my system. I have a FIFO and clock in front of this board.

 

[Decoherent]

Hi Rianj,
you happpen to have any spare boards?

Thansks.

 

[tonimxp]

Hi ryanj,


It should be possible to modify the decoder by adjusting the delay circuit from 32 bits delay to 16 bits delay (as we now have only 32 bits / frame instead of 64 bits / frame):

-> disconnect the connection between U4 (74LV164) pin 13 (QH) and U5 (74LVC79) pin 1 or remove U4 (74LV164) from the PCB.

-> connect U5 pin 1 (data) to U2 (74LV164) pin 13 (QH)

I can't test this over here right now as I don't have any 32 bit / frame sources.

HI!
I was wondering if there might be any downsides with the connectivity described above in terms of performances.
Another curiosity...What could happen if a 74hc175 was used as a frequency divider between the BCK input and the rest of the circuit.
Thanks in advance for your reply.
Anthony.

 

[Orgonom]

Hi ryanj,
do you have still spare boards?

Regards,
Andreas

 

[ryanj]

Hi Andreas,
Yes I have some.

 

[Orgonom]

Hi ryanj,
great, how much it is? Paypal Ok?

 

[hirscwi]

There is a link to a google form in first post in this thread - simply complete and he will send you a paypal invoice.

 

[Orgonom]

Thanx hirscwi!

 

[fastvideo]

Is there any issue if I solder 1 end to the U.FL-R-SMT-1?

 

[fastvideo]

Is there any issue if I solder 1 end to the U.FL-R-SMT-1?

instead of populate the U.FL-R-SMT-1, solder 1 end of the wire onto the pad?

 

[ryanj]

Hi fastvideo,
Its not ideal, but yes you can do this, I think a few others have also done this. Just be very careful not to pull the pad off the PCB.