Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

OPA549T help!!
OPA549T help!!
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 17th February 2004, 03:57 AM   #1
JhonDoe is offline JhonDoe  Philippines
diyAudio Member
 
Join Date: Jan 2004
Location: ac
Question OPA549T help!!

This morning i'de recieved 2 pcs. of this chip sample from Texas instrument. I wanted build a gain clone using this chips. I need a schematic to do this, is there anyone used this chips for their project?

In the schematic below...
What sould be the value for R1 and R2? for the good output result?
Attached Images
File Type: png opa549t.png (2.4 KB, 130 views)
  Reply With Quote
Old 17th February 2004, 05:49 AM   #2
theChris is offline theChris
diyAudio Member
 
Join Date: Dec 2001
Location: SIUE, Illinois, USA
those resistors set gain:
(R2/R1) +1 = gain. most people go between 10 and 30, with 20 being a good goal.

i'd say R1 = 1k and R2 = 20k would be fine. or you could double those numbers, ect.
__________________
if only it could be used for good, not evil...
  Reply With Quote
Old 17th February 2004, 05:51 AM   #3
TonyTecson is offline TonyTecson  Philippines
diyAudio Moderator
 
TonyTecson's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
OPA549T help!!
just pay attention to the pin-outs, this is just an opamp with huge power output....there are many to be found in these threads..
__________________
planet10 needs your help: Let's help Ruth and Dave...http://www.diyaudio.com/forums/plane...ml#post5010547[B
  Reply With Quote
Old 17th February 2004, 06:09 AM   #4
JhonDoe is offline JhonDoe  Philippines
diyAudio Member
 
Join Date: Jan 2004
Location: ac
Quote:
Originally posted by joan2
just pay attention to the pin-outs, this is just an opamp with huge power output....there are many to be found in these threads..

First, I wanna thank you (joan2) for giving me the idea where to get a sample chips.... thanks!!...
Second, how this chips sound like? are they good as the LM's do?

I tried to order chips from national but my request is in hold due to import/export issues in our country....I hope this essues will be solved soon so i can request for a sample chips

How much Output wattage (minimum/maximum)this chip can deliver?
  Reply With Quote

Reply


OPA549T help!!Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
OPA549T - 2SK343 - 2SJ99 - Kef ANTHONY2181 Swap Meet 1 28th June 2010 05:11 PM
Any difference between OPA549S & OPA549T ? jamesjung21 Chip Amps 1 24th August 2004 10:04 AM


New To Site? Need Help?

All times are GMT. The time now is 04:50 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki