I am using ADAU 1961 audio codec's LOUTP, LOUTN, ROUTP, ROUTN pins to interface with SSM2306. I have to drive 600 ohm load at the output of SSM2306 . I have some doubts:
Firstly, is it necessary to use ferrite bead, LC filter at the output of the SSM2306. What will be the impact if I don't use this things & directly route the audio outputs to the audio connector?
Secondly, as I mentioned I have to drive 600 ohm load at the output of SSM2306, to meet this requirement what gain can I set for SSM2306? I understood the relation between Rext & gain, but is there any relation between Rext, Cin & the load which can be driven (in my case which is 600 ohm) ?