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Original question:

TS3A226AE: TS3A226AE check SCH

TS3A226AE: C2 Pin NC

user5861925
Intellectual 570 points
Part Number: TS3A226AE

HI ：

I am using TI TS3A226AE, and I have the following questions to consult, please help to solve them, thank you.

TS3A226AE's datasheet C2 Pin TIP function is involved in independent identification, which is detected and identified by comparing the impedance between TIP and ring2 and TIP and sleeve Pin.

My question:

1.Will there be any problem if C2 Pin is not used?

2.If we don't use the detection and identification function of C2 TIP.We write our own detection algorithm, and switch through our own software.Is C2 pin suspended, which will affect the normal use of chip analog switch?

thank you ,looking forward to your reply

BR

Sunny

  • 0
    TI__Genius 9132 points

    Hi Sunny,

    1. You must connect the tip pin of the TS3A226AE in order for them to properly execute the detection sequence. All our TI audio jacks switches use the TIP, Ring2, and Sleeve pins of the audio jack to do the detection.

    2. However, if you want to allocate the channels manually, you can use an audio switch that does not have built-in auto detection and then use your own detection algorithm. Please take a look at TS3A26746E where you can interchange the Ground and MIC connections on a headphone connector.

    Please let me know if you have any questions,

    Thanks

    Saminah