Part Number:TPA3121D2
I am using TPA3121D2 in single ended configuration with 8 Ohm load.
I am facing issue if interference of oscillator switching frequency with output signal.
Query 1: Without giving any input at Lin pin, Output at Lout is always showing 1.76V@288kHz switching frequency.
Query 2: When input is given, at that time proper amplification is happening wrt voltage level but still switching frequency noise has been observed on top of output signal.
Please suggest proper filtering elements.
As of now, we have checked with EVM board in that 33uH Inductor and 220nF capacitor is used as output filter.
PFA waveforms for reference(Please visit the site to view this file).