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9th December 2006, 07:10 AM
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#1 |
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Electrons are yellow and more is better!
diyAudio Member
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Balanced -> Unbalanced DRV134 the best?
I'm looking for alterantives to DRV134 for converting a balanced signal into an unbalanced one for feeding a power amp. DRV134 is wellknown but anyone who knows about any "high grade" alternative? It's also good if it can be found in SO08-14 or similar.
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/Per-Anders (my first name) or P-A as my friends call me |
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11th November 2009, 02:34 PM
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#3 |
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diyAudio Member
Join Date: Mar 2007
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All you need is a differential amplifier. But good amplifiers accept differential signals directly.
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"Fully on MOSFET = closed switch, Fully off MOSFET = open switch, Half on MOSFET = poor imitation of Tiffany Yep." - also applies to IGBTs! |
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11th November 2009, 04:53 PM
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#4 |
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diyAudio Member
Join Date: May 2006
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I"m pretty sure the DRV134 is for converting a Unballanced signal into a Ballanced signal not the other way arround ....
if you go to figure 2 on this page it shows how to use an opamp to go from ballanced to unballanced ... Balanced Line Driver & Receiver Cheers |
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11th November 2009, 04:59 PM
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#5 |
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Electrons are yellow and more is better!
diyAudio Member
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The topic is wrong... I ment as I wrote unbalanced to balanced.....
__________________
/Per-Anders (my first name) or P-A as my friends call me |
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11th November 2009, 05:04 PM
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#6 | |
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diyAudio Member
Join Date: May 2006
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Quote:
Sorta figued that .... Either way that same link has a good circuit for going Unballanced to ballanced , in my opinion better sounding than the DRV134 and really not much more complicated .... Cheers |
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11th November 2009, 05:54 PM
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#7 |
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diyAudio Member
Join Date: Jun 2001
Location: Alexandria, VA USA
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THAT inc. makes a IC that has seen some print that its a better device than the Texas Inst. part, but I don't know if thats true or not. Given that most use the TI part for a pro audio use, not an audiophile one, its possible that a well designed descrete unit would be better - I looked at the issue when I was having a noise problem with a noisy ballast in my big inch TV. Sonically, it made more sense to fix the TV, so thats what I did. Either way, the chips are so cheap, build a prototype of each and test - the powersupply for the unit will cost 10 times the chip (which TI will sample).
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