Hi,
My customer has a question below.
According to the datasheet of PCM5310, ramp up/down time for the analog output can be changed through the register setting (Register 18, PDTM[2:0]).
For reducing pop noise when power is on or off, customer sets [100] to REG18 PRTM[2:0].
And this value is expected 1000 ms for a ramp up time of power-up, and 2000 ms for a ramp down time of power-down. However the result is about 300ms for both cases.
A 1.0-μF capacitor is connected to VCOMAD and VCOMDA pins.
Is there any method of extending the ramp up/down time?
Regards,
Toshi
