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THAT 1646 unbalanced to balanced line driver - Page 2

post #16 of 19

did your design work? is it truly noise-less? i am trying to add this IC THAT 1646 to an equalizer that has a unbalanced output coming from a NE5532 Opamp, that's why I ma so interesed to know about the performance of your application. thanks a lot!

 

Cheers.

post #17 of 19

Why not use a transformer? 

Ground loop proofing and lower noise contribution may be worth more than slightly lower measured THD. 

post #18 of 19

 

Quote:
Originally Posted by nikongod View Post

Why not use a transformer? 

Ground loop proofing and lower noise contribution may be worth more than slightly lower measured THD. 

 

You sure love your transformers... wink_face.gif

 

Totally right though, I use them in distributed audio systems all the time, as in to send a balanced signal hundreds of feet, and currently use these in my home system to go between my preamp and my altec lansing power amp:  http://www.rdlnet.com/product.php?page=164  granted these are $55 a piece, you can always go to a local electronics shop (or order online) and get audio unbal to bal transformers.  You can probably get a naked pair of transformers for around $20.  Nice thing about transformers is that they don't require a power source...

post #19 of 19

Hi,

I am looking for a PCB for the THAT 1646 with the gain OPA op amp all on board, your PCB looks ideal. Can you tell me if it is possible to purchase 20 unpopulated PCBs from you and ship them to me in the UK?

 

Many thanks,

 

Kind regards,

 

Colin.

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