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About control the WM8962 on i.MX6Q SABRE-SDP

Question asked by Keita Nagashima on Sep 14, 2014
Latest reply on Oct 19, 2014 by Wigros Sun

Dear Sir or Madam,

 

Refer to schematic of MCIMX6Q-SDP.

When controlling off, U7(WM8962) has sometimes worked by controlling power ON/OFF of CODEC_PMR_EN3 on SABRE-SDP.

(Q506, Q50, Q505 are working correctly.)

I seem that SPKVDD, AUD_3V3 and AUD_1V8 are applied some voltage.

Please tel me this cause and workaround.

 

Best Regards,

Keita

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