TLV320AIC3105: Can differential line + output be treated as single-ended?

Ted Hordeski

Part Number: TLV320AIC3105
Other Parts Discussed in Thread: TLV320AIC23B, , TLV320AIC3204

We are replacing the discontinued TLV320AIC23B on several circuit boards. I am looking at the TLV320AIC310x series of CODECS. A major difference, though, is that the line out is differential instead of single-ended as in our older part (AIC23B). Can the + output on the AIC310x be treated as single-ended or do we also need to replace the following op-amp (TPA701D) with a differential to single-ended amplifier? Conversely is there a low-cost codec with single-ended line outputs?

over 2 years ago

0 pdjuandi over 2 years ago

TI__Mastermind 29765 points

Hi,

These devices are with fully differential line output, you can either replace with differential to single ended or use device like AIC3204.

Here is a high-level summary of some of the codec devices.

6747.AIC products.pdf

Regards.

0 Ted Hordeski over 2 years ago in reply to pdjuandi

Prodigy 130 points

Thanks, pdjuandi. That does not really answer my question. I like the TLV320AIC3105 but want to know if I can treat the LINE OUT+ as a single-ended signal or if I must replace our TPA701D with a differential input amplifier. If so, I would appreciate a recommendation for a differential audio amplifier and, if possible, a reference circuit.

0 Ted Hordeski over 2 years ago in reply to pdjuandi

Prodigy 130 points

I'm looking at the TLV320AIC3204 as you suggested, and it looks like it may be a fit for our application.

+1 pdjuandi over 2 years ago in reply to Ted Hordeski

TI__Mastermind 29765 points

Good.

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TLV320AIC3105: Can differential line + output be treated as single-ended?