This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TLV320AIC3204: only MIC detective (without headphone)

Part Number: TLV320AIC3204

Hello! It's anybod in here?

    I have got a Headset Detection problem in TLV320AIC3204. In the document, Its register 67 | address 0x43 just have 2 modes( 01: Stereo Headset detected; 11: Stereo + Cellular Headset detected). But now, we insert a MIC without Headphone speaker(no any Resistors Inductors and Capacitors in there, just empty). In this situation, its register 67 should return f6 (1 11 101 10), in the other words , I meam it should be 11 (Stereo + Cellular Headset detected) in D6-D5. But unfortunately, it always returns b6 (1 01 101 10) now. It seems like the MIC which I insert was detected to be a Stereo Headphone, and the MIC dosen't work. Emmmm???

    Other way, the hardware design based on standard way.

    Is there any way to fix the problem? 

    Can I put resistors or some thing else to simulate a speaker to let the MIC to be detected as a Stereo + Cellular Headphone?