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Original question:

TS3A226AE: TS3A226AEYFFR

TS3A226AE: TS3A226AEYFFR

Jacob Voss
Prodigy 70 points
Part Number: TS3A226AE

Tool/software:

I cannot get the microphone to work reliably. If i plug and unplug the headphone jack it may work 4/10 times. Attached is the schematic. Speakers work fine, but i think something is incorrectly implemented on the TS3A226AEYFFR. Any thoughts?

Also, I have to turn up the microphone all the way up to 100% volume to get normal microphone input volume. On the OS microphone test utility in Windows once i turn up the microphone volume to 100% it registers the microphone at around 36. This is the case for the times that it is plugged in and actually works. for the other 6/10 times it doesn't register anything in the microphone test utility. 

Thanks,

Jacob

  • 0
    TI__Intellectual 1060 points

    Hi Jacob,

    Nothing really stands out with the use of the TS3A226AE. 

    1. Ensure the VDD pin has a stable 3.3V supply.

    2. Verify the physical connectivity of the Ring2 and Sleeve pins.

    These steps will help isolate whether the problem is a board-level connection issue (ex., soldering) or a failure in the detection logic

    Thank you,

    Arya 

  • 0 in reply to Arya Hussein
    Prodigy 70 points

    The 3.3V is stable. The issue is consistant with all 5 board assemblies. see screenshot below:

    My thought is that it has something to do with the detection logic I am using, but nothing sticks out.

  • 0 in reply to Jacob Voss
    TI__Intellectual 1060 points

    Hi Jacob,

    First check if the jack detection is working properly, by probing the enable pin. Before insertion connect a 10k pull down resistor to the enable pin, this should hold the pins voltage to 0V. After insertion of the jack, this should cause the switch to be open and allowing the enable pin to voltage to rise to 3.3V. This test is to make sure the device is following the expected behavior.

    Thank you,
    Arya