Pop-click-noise (PCN) reduction in audio driver

A circuit, comprising:

• a first amplifier having an output terminal and first and second input terminals;
• a first capacitor having first and second terminals, the first terminal of the first capacitor coupled to the second input terminal of the first amplifier;
• a first switch having first and second terminals, the first terminal of the first switch coupled to first terminal of the first capacitor;
• and
• a second capacitor having first and second terminals, the first terminal of the second capacitor coupled to the second terminal of the first switch.

A system, comprising:

• a first amplifier having an output terminal and having first and second input terminals, the first amplifier comprising:
• a first transistor having a control terminal and first and second terminals;
• a first capacitor having first and second terminals, the first terminal of the first capacitor coupled to the control terminal of the first transistor and the second terminal of the first capacitor coupled to the second terminal of the first transistor;
• a first switch having first and second terminals, the second terminal of the first switch coupled to the control terminal of the first transistor;
• and
• a second capacitor having first and second terminals, the first terminal of the second capacitor coupled to the first terminal of the first transistor and the second terminal of the second capacitor coupled to the first terminal of the first switch;
• a second amplifier having an output terminal and first and second input terminals;
• a third capacitor having first and second terminals, the first terminal of the third capacitor coupled to the second input terminal of the second amplifier;
• a second switch having first and second terminals, the first terminal of the second switch coupled to first terminal of the third capacitor;
• a fourth capacitor having first and second terminals, the first terminal of the fourth capacitor coupled to the second terminal of the second switch;
• a first resistor having first and second terminals, the first terminal of the first resistor coupled to the first input terminal of the second amplifier, and the second terminal of the first resistor coupled to the first input terminal of the first amplifier;
• and
• a second resistor having first and second terminals, the first terminal of the second resistor coupled to the first input terminal of the second amplifier, and the second terminal of the second resistor coupled to the second input terminal of the first amplifier.