Anyone else had problems with digital circuits freezing ? [Solved]

mroboto

Super Member
I fixed a DAC SA9227 USB receiver chip freezing problem.

I fixed a Asus P5N-T Deluxe computer motherboard freezing problem.

Adding Multilayer ceramic capacitor between output and ground pins , (Pin 1 & 2) of the AMS1117 regulator, for the SA9227 + PCM5102A USB DAC.

And in parallel with each of the solid polymer capacitors for the motherboard.

I used 4.7uf 50V and 2.2uf 50V for the smaller capacitors of the motherboard.

Sometimes regulators are too noisy, or filtering capacitors are insufficient, and digital circuits require clean power.

Digital circuits freezes when not powered cleanly.
 
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