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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.

Pedja
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Old 2nd September 2003, 02:41 PM   #62
bequerel is offline bequerel  Norway
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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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Thijs
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Old 28th October 2016, 08:41 AM   #64
mickeyratt is offline mickeyratt  Hungary
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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:
https://www.passdiy.com/project/prea...-buffer-preamp

What are your opinions?
Thank you in advance!
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