adau1701 digital input
Hi. Can i with my ADAU1701 miniz Board handle 2 digital inputs (2 Stereo Channels)?
On my Project we have 2 different soundmodules.
The MCLK, BCLK, LRCLK is sync on all.
I use the SDATA_IN for the first soundmodule (Stereo)
but i dont see an second input like SDATA1
Audio Signal Processors
SigmaDSP Audio Processors
adau1701
Hello Remo,
It can be done but will require some mods to the board.
The SDATA1 input is on multi-function pin MP1. On the Mini eval board this pin goes to an LED to be used as a GPIO output. So you would have to remove the LED and change the resistor value to something like 22 or 33 ohms to help control reflections. Then solder a wire onto the LED pad. The cathode was tied to ground so you could tack on a two-pin header so you can use a shielded cable or a ribbon so ground can run along with the serial data. Just be sure to glue down any wires or connectors really well. I have ripped up enough SMT pads to learn that lesson.
Dave T
Hello Dave
Many thanks for your fast, detailed and good support.
Best Regards
Remo
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