Beginner: does ordering matter, of components from the voltage source? - Page 2 - Electronic Circuits Projects Diagrams Free

DigiTan · 18th June 2008, 04:18 AM

Quote:

Originally Posted by nyoo

You're talking about radio, correct?

Yeah, just radio. I mean, you would also have to take component placement into account in digital logic and microcontroller projects, but not really here.

Quote:

Originally Posted by nyoo

By low-end, do you mean low voltage or low price?

Mostly price and audio quality. The TL071 is a good chip but you wouldn't really find one in a high-cost stereo, you know? But are they low cost, and very good for this kind of project.

**Nigel Goodwin** · 18th June 2008, 08:43 AM

Quote:

Originally Posted by DigiTan

Mostly price and audio quality. The TL071 is a good chip but you wouldn't really find one in a high-cost stereo, you know?

Only because there's little need for an opamp in a stereo system, but the mixer that created the music you listen to probably had hundreds in it - and quite possibly lower quality devices as well.

audioguru · 18th June 2008, 05:30 PM

A TL072 has harmonic distortion rated at 0.003% and noise rated at 18nV. It costs $.50US.
An OPA2134 is rated at 0.00008% and 8nV. It costs $2.43US.
An LM4562 is rated at 0.00003% and 2.7nV. It costs $4.53US.

You might be able to hear distortion at 0.2% or more.

**Nigel Goodwin** · 18th June 2008, 07:01 PM

Quote:

Originally Posted by audioguru

You might be able to hear distortion at 0.2% or more.

If you've got really good hearing!

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18th June 2008, 05:30 PM	(permalink)
audioguru	A TL072 has harmonic distortion rated at 0.003% and noise rated at 18nV. It costs $.50US. An OPA2134 is rated at 0.00008% and 8nV. It costs $2.43US. An LM4562 is rated at 0.00003% and 2.7nV. It costs $4.53US. You might be able to hear distortion at 0.2% or more. __________________ Uncle $crooge