My customer is testing the TPA3255-Q1 and has questions regarding the frequency characteristics of the audio output.
The picture below is obtained when my customer tested the output load with 4 ohm and 8 ohm at 1W output (sinewave, 200mV input).It is a frequency-specific amplification characteristic curve.
1. The LC filter configuration circuit at my customer's output is as below.
Is the measured waveform checked above the correct output waveform?
Why is it measured like that if it is not the correct output waveform?
2. What is the frequency band of this amp(TPA3255-Q1? Can't reach 50Khz?
My client wants to work as an amp up to 70khz.