Part Number:LM4808
I'm using two LM4808 ICs in my audio mixer circuit. After I power the circuit (3V with 2 x AA batteries), I hear a popping sound when my headphones are connected to the outputs before about five seconds have elapsed. If I wait at least five seconds after power is applied, I don't hear a popping sound when I connect and disconnect my headphones. I followed the recommendations to reduce pop in the datasheet by adjusting the values of capacitors Ci and Cb, but it made no difference. I reduced the input capacitors (Ci) to 0.1 uF and it had no effect. It also had no effect to reduce my output decoupling capacitance by removing two 470 uF capacitors on each channel. I don't know why I have to wait so long after applying power before there's no pop sound. What could be causing this problem? Here is my circuit:
