Hi Team,
my customer uses PCM1802 in his design and he sees increase of the THD below a frequency of 100Hz.
He increased the capacitor on VREF1 to 100uF and that seems to solve the THD issue.
The datasheet recommends a 10uF electrolytic capacitor for VREF1, but does not specify any range for capacitance.
If the customer uses a 47uF or 100uF ceramic cap, will there any negative performance impact?
Thanks!