Hi Sirs,
Sorry to bother you.
Could you help review our schematic as below?
And we have three questions on TS3A227E
1. Is the ground connection of the filter capacitor of Power Pin4 of TS3A227ERVAR connected to Digital GND or Analog GND?
Because we saw datasheet had two type.
2. TS3A227E DET_TRIGGER# Pin15, is there an internal pull-up resistor to VDD? The other word is I just need to connect Combo Jack's Detect signal HPOUT-JD (connected to GUD_AUD when Headset plug in, like below) to this Pin?
3. Combo Jack's Detect signal HPOUT-JD, the conventional design is connected to the CODE A pin of the Audio Codec ALC262 to inform the Codec HP insertion, but because of the addition of TS3A227ERVAR, it is connected to its DET_TRIGGER# Pin, DET_TRIGGER# has an internal pull-up to VDD. I wonder if this pull-up has an effect on Codec's Sense A resistance judgment. If so, how do you suggest design? Is there a relevant successful design case for reference?