SGTL5000 max output level

T

toyosm

Well-known member
Hey guys, I'm making some measurements on a board with the SGTL5000. I'm injecting a 1Vpp 1KHz sinewave on the input (with variable gain), on the code side only have a passthrough (I2S input directly to I2S output). I cannot get more than 230mVpp from the output of the SGTL5000 without clipping. The max output that I could get is about 320mVpp but a total square wave. Tried all the line in and line out level settings and seems impossible to get more than that output without clipping the signal.

Is that normal? did anyone measured the output of the codec? any thoughts?
 
My bad, I had a 1M resistor on the VAG cap, read somewhere that can improve noise. Obviously did because now the signal is super low!.
 
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