Who wants a PCB project? - diyAudio
Go Back   Home > Forums > Design & Build > Software Tools

Software Tools SPICE, PCB CAD, speaker design and measurement software, calculators

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 2nd March 2014, 04:07 AM   #1
diyAudio Member
 
Join Date: Nov 2005
Default Who wants a PCB project?

I'm looking to design an amplifier PCB for 7297 chip, and a PSU. But I want to get this done before I'm an old man that figures out PCB software.
  Reply With Quote
Old 2nd March 2014, 06:30 AM   #2
SyBorg is offline SyBorg  United States
diyAudio Member
 
Join Date: Dec 2012
Location: Redondo Beach, CA
The TDA7297 datasheet already has a recommended layout:
http://www.st.com/web/en/resource/te...CD00001048.pdf

Or, are you looking for something different? Do you have a schematic you want to use?
  Reply With Quote
Old 2nd March 2014, 05:17 PM   #3
diyAudio Member
 
Join Date: Nov 2005
Quote:
Originally Posted by SyBorg View Post
The TDA7297 datasheet already has a recommended layout:
http://www.st.com/web/en/resource/te...CD00001048.pdf

Or, are you looking for something different? Do you have a schematic you want to use?
Something different. Quiet a bit different.
  Reply With Quote
Old 3rd March 2014, 12:04 PM   #4
marce is offline marce  United Kingdom
diyAudio Member
 
Join Date: Jun 2007
Location: Blackburn, Lancs
How different?
  Reply With Quote
Old 3rd March 2014, 12:29 PM   #5
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
Have a look at Sprint-Layout software. You really can use it in moments, it's almost like Paint.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote
Old 3rd March 2014, 01:05 PM   #6
diyAudio Member
 
KatieandDad's Avatar
 
Join Date: Nov 2011
Location: UK
The freebie Easy PCB on RS Components International is pretty self intuitive too.
  Reply With Quote
Old 3rd March 2014, 03:38 PM   #7
marce is offline marce  United Kingdom
diyAudio Member
 
Join Date: Jun 2007
Location: Blackburn, Lancs
basically if there is not a lot of parts, I could fit it in....
  Reply With Quote
Old 3rd March 2014, 03:58 PM   #8
diyAudio Member
 
Join Date: Sep 2004
Location: UK
Quote:
Originally Posted by KatieandDad View Post
The freebie Easy PCB on RS Components International is pretty self intuitive too.
I cannot see where that is a freebie!

It says available in three versions: 1000, 2000 and unlimited pins.
  Reply With Quote
Old 3rd March 2014, 07:11 PM   #9
Trileru is offline Trileru  Romania
diyAudio Member
 
Join Date: Dec 2010
I just did this in Eagle.
I attached the layout and schematics and final products
I received a great deal of help in designing the TDA7297 board from "danielwritesbac" member. He's been great at leading the way!

The power supply can be used with either LM317/LM338/LT1083/LT1084/LT1085. You need to take care of the output side of the board if using LT regulators as they can oscillate under certain conditions. There's also a load resistor to keep the regulator at about 50mA idle, also a snubber option if anyone wants to fuss with that. If you install a LED on the PS then you don't need any on the amp board.
The amp board has an option for dual rail supply, or a single one through the diodes. Also there's another hole for smaller input caps on the amp board. I didn't put any notations on the amp board as I made it for myself and I know what's what. But shouldn't be too hard to figure out. You can use the design if you wish, for yourself. I can provide the gerber files that I used.
Attached Images
File Type: png qm1i.png (55.3 KB, 256 views)
File Type: jpg 001bb3e73c8ce94ea22bd23181120913.jpg (176.0 KB, 254 views)
File Type: png sch amp.png (14.0 KB, 252 views)
File Type: png sch psu.png (13.5 KB, 251 views)
File Type: jpg IMG_8849.JPG (225.2 KB, 249 views)
File Type: jpg IMG_8864.JPG (153.3 KB, 84 views)
File Type: jpg IMG_8867.JPG (148.1 KB, 78 views)

Last edited by Trileru; 3rd March 2014 at 07:17 PM.
  Reply With Quote
Old 4th March 2014, 02:47 AM   #10
diyAudio Member
 
Join Date: Nov 2005
Well it doesn't look bad, but it's far from what I'm looking at doing. First I want to mono the amplifier. Next I have a very different PSU in mind.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
5.1 pcb layout ! New project Antivot Solid State 1 13th October 2010 12:22 PM
LT1083 PCB or project files available? luvdunhill Power Supplies 2 21st February 2008 06:47 PM
Aikido Linestage Project PCB's Geek Swap Meet 2 5th October 2007 07:15 PM
PCB for TDA1541A DAC Project TV Man Digital Source 11 16th December 2004 07:17 AM
LM3886 PCB project and may be more vasja Chip Amps 9 8th October 2004 09:16 PM


New To Site? Need Help?

All times are GMT. The time now is 07:16 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2