Hi guys,
Me and my team have been working on a custom design using the ADAU1787 with a Nordic processor and Zephyr RTOS.
Our driver works fine and we can load and use the ADAU normaly. Nevertheless, in some of our PCBs we had some problems and therefore we are double checking everything in the design once again.
For the ADAU, we decided to use an oscilator for CLK instead of a crystal for saving size. Our XTALI pin is connected to the osciliator's output pin and we have have nothing connected to the XTALO pin. In fact, the XTAL_EN register was enabled until one hour ago when I realized it.
When not using it, should the XTALO pin be connected to anything? Would there be any problem if we had nothing connected to it and the XTAL_EN register was set?
Thanks in advance.
Cheers,
João Colombari