TA8205AH - Inverting Input

Carel · 16th December 2010, 08:19 AM

Hi everyone. I was wondering if it is possible to connect a chipamp such as the TA8205AH to the same PSU that is powering the source. Let's say you connect the amp to a PC's 12V rail and you connect the Inputs to the soundcard's output (R, L & GND) - then you'll actually be shorting the V- input to the ground, right? So is there a way to connect this chip on the same power source as the input? With what circuit can this be done or can someone explain me what can be done and what will be the best option because I'm stuck on this one. It should be possible because the use these chips in car radios and the car has only one battery to power both the radio and the amp (all-inside-one unit). Help or guidance would be appreciated.

Thank You

Carel · 16th December 2010, 06:45 PM

Ok, my thing isn't audio, but now I'm trying hard to learn. I normally build other stuf like EEPROM or SPI programmers that connect with the PC. Or I build smart SMPSes... Maybe I'm putting it wrong or something. In other words, is there a way to convert Inverting Audio outputs to Non-Inverting Audio and vice versa? Can an LM358 chip be used for audio at all? I believe it can convert an Inverting signal to Non-Inverting, but will it work for audio?

Carel · 16th December 2010, 09:45 PM

Maybe this explains more:

Amp.jpg
http://www.mediafire.com/imgbnc.php/...946c40ab6g.jpg

Arty · 10th April 2011, 07:40 PM

what v- are we talking aabout? the chip needs a single supply only.
So You only have v+ and gnd.

16th December 2010, 08:19 AM	#1
Carel diyAudio Member Join Date: Jun 2010 Location: Brits	TA8205AH - Inverting Input Hi everyone. I was wondering if it is possible to connect a chipamp such as the TA8205AH to the same PSU that is powering the source. Let's say you connect the amp to a PC's 12V rail and you connect the Inputs to the soundcard's output (R, L & GND) - then you'll actually be shorting the V- input to the ground, right? So is there a way to connect this chip on the same power source as the input? With what circuit can this be done or can someone explain me what can be done and what will be the best option because I'm stuck on this one. It should be possible because the use these chips in car radios and the car has only one battery to power both the radio and the amp (all-inside-one unit). Help or guidance would be appreciated. Thank You

16th December 2010, 06:45 PM	#2
Carel diyAudio Member Join Date: Jun 2010 Location: Brits	Inverting Audio to Non-Inverting Audio Ok, my thing isn't audio, but now I'm trying hard to learn. I normally build other stuf like EEPROM or SPI programmers that connect with the PC. Or I build smart SMPSes... Maybe I'm putting it wrong or something. In other words, is there a way to convert Inverting Audio outputs to Non-Inverting Audio and vice versa? Can an LM358 chip be used for audio at all? I believe it can convert an Inverting signal to Non-Inverting, but will it work for audio?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
opamp inverting input sounds better?	dorkus	Solid State	89	24th November 2011 11:53 AM
non inverting op amp input impedance help	sirus the virus	Solid State	5	8th December 2010 06:11 PM
Class D input LM311 Inverting input	zox2003	Class D	1	1st February 2008 07:48 AM
Input impedance of a non-inverting op amp?	glennb	Chip Amps	24	21st May 2004 03:24 AM
Input impedence of inverting gainclone	PHilgeman	Chip Amps	1	7th January 2004 03:33 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

16th December 2010, 09:45 PM	#3
Carel diyAudio Member Join Date: Jun 2010 Location: Brits	Maybe this explains more: Amp.jpg http://www.mediafire.com/imgbnc.php/...946c40ab6g.jpg

10th April 2011, 07:40 PM	#4
Arty diyAudio Member Join Date: Feb 2011	what v- are we talking aabout? the chip needs a single supply only. So You only have v+ and gnd.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)