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 _    _     ______               ___      ______  
| || | ||  /_   _//   ____      / _ \\   /_   _// 
| || | ||   -| ||-   |    \\   | / \ ||    | ||   
| \\_/ ||   _| ||_   | [] ||   | \_/ ||   _| ||   
 \____//   /_____//  |  __//    \___//   /__//    
  `---`    `-----`   |_|`-`     `---`    `--`     
                     `-`

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Text this: Class D Amplifiers (CDAs) : PWM-in-PWM-out CDA, Filterless Bang-Bang CDA, and high-frequency high-efficiency CDA for Envelope Tracking