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Original question:

TLV320AIC3104: TLV320AIC3104

TLV320AIC3104: TLV320AIC3104

AKASH JAIN
Intellectual 620 points
Part Number: TLV320AIC3104

Hello Steve

We have one query, actually we are are using a headset with this chip that has the following specs:

Speaker Specification  
Type  Transducer Moving coil dynamic speaker
Impedance  1000Ω±15% @1KHZ
Sensitivity  115dB±10 at 1K
Frequency respond  200-4KHZ
Rated input power  10mW
Maximum input power  100mW
   
   
Microphone Specification  
Type  Transducer Moving coil dynamic MIC
Sensitivity Range  -60± 3dB
Impedance Max  150Ω at 1kHz
Frequency  500-6KHz

Can you please advice can we use this with the same circuit diag shown in above post.

Regards

Akash Jain

  • 0
    TI__Mastermind 22950 points

    Hello Akash,

    The speaker specs meet AIC3104 specs. Using a single ended output will generate ~1mW which is well within the rated input power. HPOUTs on the codec need a min of 16ohms so 1000ohm impedance is fine. 

    As for the mic, generally mics are picked according to the application and not the codec. The specs for the provided mic will do fine. 

    Regards,

    Aaron

  • 0 in reply to Aaron Estrada
    Intellectual 620 points

    Hello Aaron

    Thanks for the review and explaination.

    Also can you please let us know any protection circuit at the output for protection against surge, ESD, Transient or Short circuit.

    Or Is there any audio transformer required at the output for the same?

    Regards

    Akash

  • 0 in reply to AKASH JAIN
    TI__Mastermind 22950 points

    Hello Akash,

    All of the pins have some kind of basic ESD protection.

    The datasheet specs the protection up to 2000V for the human body model. This is not always enough to meet certain design requirements, and so an external device can be used with a higher protection rating. Placing resistors between the pins of the AIC3104 and using the TPD2E007 should be enough but it really depends on design requirements.

    Regards,

    Aaron