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PERFAUDIO-FIRMWARE-DA8XX: DA808 : CVDD_1.2V current before DVDD_3.3V power supply

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Part Number:PERFAUDIO-FIRMWARE-DA8XX

Hi Experts,

My customer supplies power to DA808 in the following order:
1. Supply CVDD_1.2V
2. Supply DVDD_3.3V after about 8msec
3. Release reset after 63.5msec from 1.2V power supply

CVDD_1.2V current flows about 100mA from CVDD_1.2V power supply to DVDD_3.3V power supply. Then it will decrease after DVDD_3.3V power supply. What is the reason of this CVDD_1.2V current?

Please find the attached sheet for more details.

Best regards,
Ken
(Please visit the site to view this file)


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