PHONO PREAMP IC NEEDED

R

realInfo

Guest
Hi

I am looking for phono preamp IC .
Any ideas ?

Thanks
ec
 
I am looking for phono preamp IC .
Any ideas ?
Click to expand...
I haven't seen a single IC which includes both the necessary gain
stage and the RIAA equalization. They may exist, of course (or could
be made from a programmable-analog part) but I haven't seen them in use.

The commonest approach seems to be to use a dual op amp per channel,
with the RIAA equalization curve being implemented via components in
one or both of the op amp feedback loops. The page at
http://sound.westhost.com/project06.htm shows one such design.

You might be able to do it with just one dual op amp (one stage per
channel).

There are many high-quality audio op amps (low noise, adequate drive
capacity and gain/bandwidth product) which can be used for this sort
of design.

--
Dave Platt <dplatt@radagast.org> AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!
 
realInfo wrote:
I am looking for phono preamp IC .
Any ideas ?
Click to expand...
As mentioned elsewhere,
news:b6800dc6-4a75-4afa-b1da-3656ba27795b@a12g2000pro.googlegroups.com
your Usenet technique really stinks.
Subject lines that SHOUT are especially obnoxious.

More context about what you're trying to do is always useful:
http://groups.google.com/group/sci.electronics.design/browse_frm/thread/002f9ed331dd574e/9479254897495f94?q=pulse+make.clear+*-*-*-*-*-*-nicer-framework-*-*-*-*-*-*+zz-zz+qq+tell-the-_whole_-story

Have you considered e.g.
picking up a pre-packaged solution at Radio Shack or Flea Bay?
http://www.google.com/images?q=phono-preamp+RIAA
 
Dave Platt wrote:
I am looking for phono preamp IC .
Any ideas ?

I haven't seen a single IC which includes both the necessary gain
stage and the RIAA equalization. They may exist, of course (or could
be made from a programmable-analog part) but I haven't seen them in use.

The commonest approach seems to be to use a dual op amp per channel,
with the RIAA equalization curve being implemented via components in
one or both of the op amp feedback loops. The page at
http://sound.westhost.com/project06.htm shows one such design.

You might be able to do it with just one dual op amp (one stage per
channel).

There are many high-quality audio op amps (low noise, adequate drive
capacity and gain/bandwidth product) which can be used for this sort
of design.

Thanks
Click to expand...
ec
 
In article <gils8o$i21$3@localhost.localdomain>, realInfo <therightinfo@yahoo.com> wrote:
Hi

I am looking for phono preamp IC .
Any ideas ?

Thanks
ec
Click to expand...

You will find a circuit here
http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1154,C1009,C1026,P1293,D1612

I got that link from here

http://waltjung.org/index.html
 
Thanks
ec

"GregS" <zekfrivo@zekfrivolous.com> ëúá
áäĺăňä:gio7t7$60p$3@usenet01.srv.cis.pitt.edu...
In article <gils8o$i21$3@localhost.localdomain>, realInfo
therightinfo@yahoo.com> wrote:
Hi

I am looking for phono preamp IC .
Any ideas ?

Thanks
ec


You will find a circuit here
http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1154,C1009,C1026,P1293,D1612

I got that link from here

http://waltjung.org/index.html
Click to expand...
 
On Sun, 21 Dec 2008 19:05:04 +0200, realInfo <therightinfo@yahoo.com>
put finger to keyboard and composed:

Hi

I am looking for phono preamp IC .
Any ideas ?

Thanks
ec
Click to expand...
An RIAA Preamplifier For Magnetic Cartridges:
http://www.siliconchip.com.au/cms/A_30616/article.html

http://us1.webpublications.com.au/static/images/articles/i306/30616_8mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_9mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_4mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_5mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_6mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_7mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_10mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_11mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_2mg.jpg
http://us1.webpublications.com.au/static/images/articles/i306/30616_3mg.jpg

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
 
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