TPA2029D1 Gain question in Qisda

Qisda used TPA2029D1 in MID project , they have question for TPA2029D1 gain mode , why key tone need purse 8 time purse to increase max gain in 14 sec  , and MP3 used 4 sec ( 0.8 * 5 ) to max gain ? ( see attach file )

They need do report for Lenovo to explain IC internal working mode .

deyisupport：

Ryan, 谢谢您的提问! 我们线下与您沟通!