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Simple ACTIVE I/V for TDA1543
Simple ACTIVE I/V for TDA1543
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Old 10th July 2003, 04:57 PM   #61
Pedja is offline Pedja  Serbia
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Join Date: Jun 2002
Location: Belgrade
Elso, I just noticed I might make confusion. The drawing I referred to (in my posts #19 and #22) is in your post #12, not #13.

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Old 2nd September 2003, 02:41 PM   #62
bequerel is offline bequerel  Norway
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Join Date: Sep 2003
Those of you who have tried four parallel TDA1543 chips, have you soldered them on top of each other or kept them separate, each with their own decoupling cap?
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Old 2nd September 2003, 05:14 PM   #63
tschrama is offline tschrama  Netherlands
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Join Date: Jul 2001
Location: The Netherlands
I've soldered 2, 3 and 4 on top of each other.. seems to work OK, but they get very... very hot.. better use 5V supply and not the 8 or 9 volt you can sometimes see in a schematic..

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Old 28th October 2016, 08:41 AM   #64
mickeyratt is offline mickeyratt  Hungary
diyAudio Member
Join Date: Aug 2008
Location: KOE
Dear Friends

After 13 years, when the last post was happened in this topic, i hope, you are still here!
I'd like to try this simple active I/V with a Raspberry Pi I2S interface.
I'd like to ask, that is it necessary to put an output buffer stage to this I\V?
I also would like to implement some de-emphasis stage to play some cd rips, which encoded with 15/50us pre-emphasis. But i dont know the output impedance to simple attach a capacitor with a switched relay. (It would be easier with a buffer, but i would not to degrade the purity of this I\V)
I'am thinkin' to attach a PassDiy B1 buffer:

What are your opinions?
Thank you in advance!
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