TAS6424-Q1: Open or closed loop for single integrated driver?

Peter Higdon

Part Number: TAS6424-Q1
Other Parts Discussed in Thread: TAS5414C,

I am designing a board to amplify a single driver. The crossover for the driver will be built into my board. Inductor and heat-sink costs must be kept to a minimum.

I was going to use this chip because it is high power I2S input, and i should be able to save the cost of an inductor if I design the feedback loop myself.

My alternative is TAS5414C. easier to design, but I can't integrate my crossover into the output filter.

Is this a waste of time?

should I just grab the TAS5414C because the extra cost of automotive grade evens out the difference?

Thank you in advance for your advice

over 7 years ago

0 Gregg Scott over 7 years ago

TI__Mastermind 34345 points

Hi Peter,
I do not understand your meaning by designing the feedback loop yourself?
How do you envision integrating the crossover in the output filter? Could you provide a basic block diagram of what you are trying to do, so I can help you?

0 Peter Higdon over 7 years ago in reply to Gregg Scott

Prodigy 30 points

Hi Scott,
Thanks very much for your timely response. I will sketch up the filter for TAS6424-Q1 on Webench and get back to you

0 Peter Higdon over 7 years ago in reply to Peter Higdon

Prodigy 30 points

Hi Gregg,
I hadn't worked on a class-D audio project since 2002. The recent innovations that TAS6424-Q1 has is amazing to me. I am certain it is the right chip for this project.

Thanks again for your help

0 Gregg Scott over 7 years ago in reply to Peter Higdon

TI__Mastermind 34345 points

Hi Peter,

A lot can happen in 15 years. The TAS6424-Q1 is pretty cool device. If you need help, please use this forum. It is best to start new threads for new questions.

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TAS6424-Q1: Open or closed loop for single integrated driver?