Hi I'm working on a project with the ADAU1761. I have my schematic setup for capless headphone output, but I'd also like to use the jack detect feature. There isn't much information on jack detection in the datasheet and a google search just gives me an app note on protecting the output from a DC line output. Could you give me an example of how to hook up the jack detect in capless mode?
Also on my LAUX, RAUX line input I want to bring in a line input from a phone or mp3 player. The datasheet shows a 1K serial resistor with an ac coupling cap. However the eval board has a 49.9k resistor to gnd as well after the 1K. I wasn't sure what the purpose of that was and if I needed it.
I've attached the schematic I have so far.