Other Parts Discussed in Thread: TS5A22362, TS5A22364
Hi Sirs,
We are use 24157 to switching 2 pcs WWAN on voice call function.
We found 24157 couldn't clear to isolation the voice.
Our block:
MAX9867 (I2S audio codec) and NAU88L24 (I2S audio codec) are connect 1 pcs I2S interface WWAN module, TS3A24157RSER is used switching ALC888S (HDA audio codec) MIC_IN /LINE_OUT that connect MAX9867 MIC_IN /LINE_OUT, or connect NAU88L24 MIC_IN /LINE_OUT
Now issue is 24157 setting low, the ALC888S MIC_IN/LINE_OUT is connect to MAX9867 MIC_IN/LINE_OUT, but if we send voice from NAU88L24, ALC888S also could hear NAU88L24 voice.
If 24157 setting high, the ALC888S MIC_IN/LINE_OUT is connect to NAU88L24 的MIC_IN/LINE_OUT, if we send voice from MAX9867, ALC888S will not hear MAX9867 voice.
That cross voice phenomenon is if we call to A by the phone, at this time if B call in, the voice will effect A
Could you help us check why and how to fix it?
Our Schematic: