Dear, Sir.
My customer is evaluating PCM1754-Q1 for thier system.
They will control VCC ON/OFF to save the current comsumption during the device sleeping
state. The other side, the time from VCC ON to sound generation is defined as the system.
POR 1024 cycle is clearly described on the datasheet, but following points are not clear.
Please give your advice.
1. 10uF capacitor is recommended as the external on VCOM.
Could you please clarify the time from VCOM start charging to complete the charge
OR VCOM source current for 10uF capacitor?
2. It is not related to VCOM, 10uF tantalum or aluminum electrolytic capacitor are recommened
on VCC. Could you please let me know reason why the ceramic is not suitable.
Best Regards,
H. Sakai
