Don't worry about video frequency, John. Most of us aren't the 'entitled' type. Great free content is always appreciated and should come with no obligations on you to make them to any schedule..
Good day. I have recently synonymous worried this amp and now have a question and although I wanted to know if 5 volts & 2 amps are too much for 2x5 watt & 4 ohm speakers or if it works.
Lets hope your Dad is feeling better for xmas. I'm listening to this video on a breadboarded AN7523 - 8 v supply 4w....speaker mounted in plastic kfc bucket ;)... sound surprisingly good..definitely going to box this one. If you haven't already I would love you to have a look at the Panasonic AN series of chips. I believe they were mostly used in their tv and consumer boom box and the like in 90s-2000s. Probably superceded but still plenty around. I've used the AN7522, An7523 (stereo version) and AN7511..all been excellent chips..theres usually, mute, standby, overload protection..all low power, big output..and minimal parts. And this chip does not get hot, or appear to need a heatsink..worth a look
I had tried using no coupling capasitor in the input, but the output sound was lower than when i used capasitor on the input, bro. I used 10uf cap anyway. And before the speaker, i use 220uf from the output ic leg. Not 470uf. Are you sure it will break the ic 2822 because the coupling cap on input? Anyway, i prefer use stepdown transformer, bridge diode, and smooth cap to get 12V supply directly to the IC. I see the 2822 datasheet, it can handle till 15V as the supply. The result sound is clear with no noise (for my ears). Because when i used 12vdc from the adaptor, the robotic noise was really annoying. I dunno why. What do you think about it, bro? Would you mind helping me with your super amazing explanation about my cases. To find out the cause of it and the solutions if i was wrong. Because i've already done my tda2822m amp project with 4ohm impedance speakers (with diy wood complex enclosures). And i want to use it as my desktop speaker for long term use.
I assembled this circuit on veroboard but I am getting only 140 milliwatts output per channel. What could be the reason ? I used 9 Volts supply @ 8 ohms speaker
Hello. I use this on a Raspberry Pi for some audio outputs. But i have a lot of noise also i do not have connected any oudio wire. So the noise will comes from the 5V from the raspberry. Is there a way to reduce this noises ? I think i hear the CPU working :-( This is the second Amp that i try and i don´t want to buy again an other for testing. Thanks !
ok, alright, great info. Now I have a couple of questions. You mentioned you ran this chip on a bread board. I would like to see that, as that's what I'm getting ready to do. After you did your mods and ran your tests again, I sensed a little disappointment in the results. You questioned the authenticity of the chip. I just watched a bunch of videos on this chip in various amp configurations, and chip authenticity is mentioned frequently. That's interesting to know, especially when it comes to popular chips. I was wondering, if you still have that chip you used in the bread board configuration, you might swap it out into this board, and do a comparison of the results. I would like to see that. So, good job, I found the video useful, and I hope I can find the video you did with the bread board version. I would be interested in seeing the configuration you created and learning why you designed it the way you chose. Thank you for the video, most helpful. It's really great to come on UA-cam and get all the tips from you guys before you start building your project, they come out really good. Thanks.
I made this amplifier on veroboard as per datasheet circuit and using my android phone to play songs. But when I increased the volume using potentiometer (47K), the sound was distorted. Can I use this same voltage divider to get a clean sound ? Also, can this type of voltage divider be used on other such small chipamps like Tea2025, Tba820 etc to get a clean clipping free sound ?
Hi John, do you know of any pin to pin compatible with the TDA2822 IC amp that can do better (more powerful) than the TDA2822? - Dennis from the Philippines
It seems like a good little amplifier to use as a portable headphone amp with a couple of lithium ion batteries.... The data sheets show specifications for up to 32 ohms and it should theoretically provide enough volume... It's also apparently bridgeable.... Hmmmm I just might have to grab a few boards from eBay to experiment with.....
I put a Like instantly as some weird music comes on :) Got my dose of "acid folk" for today - thank you, John! Regarding the amp - this just gave me an idea - can it be used for headphone amp that uses DIP8 sockets?
Hey I have something I'm considering sending in for you to check out. It's a design for a small regulated +/- dual supply that I came up with. I'd really like someone to test it independently. I can send it pre-assembled. Would you be interested?
I got a couple of these for free and am getting really nasty popping and cracking with the volume all the way down. Any ideas? Been hunting all over for an answer and have found one. I made a little portable speaker box could it just be interference for the speakers being in close proximity? imgur.com/gallery/jh8lt9R
Getting crackles with the volume down sounds like a power supply connection problem. Those blue screw terminals are junk. Be sure the wire is secure in it.
@@JohnAudioTech didn't see you reply here till recently thanks. Pretty sure It was just a junk chip or something. And good advice on not using 12v with these counterfeit ones. Had one start smoking immediately after hooking it to a 12v battery. Thanks for the informative videos!
*Review starts at **1:54* if you don't want to listen to me explain why I haven't been putting up videos lately.
Yeah you don't need to explain things to me. I know that life happens.
I wish you live long & keep making amazing videos for all
Don't worry about video frequency, John. Most of us aren't the 'entitled' type. Great free content is always appreciated and should come with no obligations on you to make them to any schedule..
Hope your Dad gets well soon for Christmas.
Wish you and your dad well!!
Good day. I have recently synonymous worried this amp and now have a question and although I wanted to know if 5 volts & 2 amps are too much for 2x5 watt & 4 ohm speakers or if it works.
I hope your Dad ends up OK. Have a great Christmas and thanks for the video.
Excited to see your posted video John. Thanks!
12v power and it sounds great
From another channel I just watched
Lets hope your Dad is feeling better for xmas. I'm listening to this video on a breadboarded AN7523 - 8 v supply 4w....speaker mounted in plastic kfc bucket ;)... sound surprisingly good..definitely going to box this one. If you haven't already I would love you to have a look at the Panasonic AN series of chips. I believe they were mostly used in their tv and consumer boom box and the like in 90s-2000s. Probably superceded but still plenty around. I've used the AN7522, An7523 (stereo version) and AN7511..all been excellent chips..theres usually, mute, standby, overload protection..all low power, big output..and minimal parts. And this chip does not get hot, or appear to need a heatsink..worth a look
I had tried using no coupling capasitor in the input, but the output sound was lower than when i used capasitor on the input, bro. I used 10uf cap anyway. And before the speaker, i use 220uf from the output ic leg. Not 470uf.
Are you sure it will break the ic 2822 because the coupling cap on input?
Anyway, i prefer use stepdown transformer, bridge diode, and smooth cap to get 12V supply directly to the IC. I see the 2822 datasheet, it can handle till 15V as the supply. The result sound is clear with no noise (for my ears). Because when i used 12vdc from the adaptor, the robotic noise was really annoying. I dunno why.
What do you think about it, bro? Would you mind helping me with your super amazing explanation about my cases. To find out the cause of it and the solutions if i was wrong. Because i've already done my tda2822m amp project with 4ohm impedance speakers (with diy wood complex enclosures). And i want to use it as my desktop speaker for long term use.
Why you dont recommend 4ohm speakers? In datasheet 4ohms is recommended.
I assembled this circuit on veroboard but I am getting only 140 milliwatts output per channel. What could be the reason ? I used 9 Volts supply @ 8 ohms speaker
Praying for your Dad...Be well
What was the voltage you used? I noticed that the value shows 1.7v to 12v on the spec sheet
Csn you compare this amp vs. The tda7297? Thank you.
I have a few of these boards, I 1 blew up thay don’t like 2x9v in parallel for more amperage while testing low bass frequencies thay sound good for $2
Hello. I use this on a Raspberry Pi for some audio outputs. But i have a lot of noise also i do not have connected any oudio wire. So the noise will comes from the 5V from the raspberry. Is there a way to reduce this noises ? I think i hear the CPU working :-( This is the second Amp that i try and i don´t want to buy again an other for testing. Thanks !
ok, alright, great info. Now I have a couple of questions. You mentioned you ran this chip on a bread board. I would like to see that, as that's what I'm getting ready to do.
After you did your mods and ran your tests again, I sensed a little disappointment in the results. You questioned the authenticity of the chip. I just watched a bunch of videos on this chip in various amp configurations, and chip authenticity is mentioned frequently. That's interesting to know, especially when it comes to popular chips. I was wondering, if you still have that chip you used in the bread board configuration, you might swap it out into this board, and do a comparison of the results. I would like to see that.
So, good job, I found the video useful, and I hope I can find the video you did with the bread board version. I would be interested in seeing the configuration you created and learning why you designed it the way you chose.
Thank you for the video, most helpful.
It's really great to come on UA-cam and get all the tips from you guys before you start building your project, they come out really good.
Thanks.
I made this amplifier on veroboard as per datasheet circuit and using my android phone to play songs. But when I increased the volume using potentiometer (47K), the sound was distorted. Can I use this same voltage divider to get a clean sound ?
Also, can this type of voltage divider be used on other such small chipamps like Tea2025, Tba820 etc to get a clean clipping free sound ?
I liked to see more diy projects based upon TDA2822M related to audio amplifier further!
Hi John, do you know of any pin to pin compatible with the TDA2822 IC amp that can do better (more powerful) than the TDA2822? - Dennis from the Philippines
Is this better than lm386?
I prefer to use PAM8403 instead of this chip. 2822 was awesome for simple diy portable speakers before class D amps became popular.
The little PAM is such a beast in comparison, and you get them essentially for free.
Yes they are much better and cheaper. Sometimes on ebay you can get PAM8403 for less than 2usd. 10 pieces of them for 2usd :D
I hope your dad is ok... I remember the Trees, a long time ago. Could it be because the caps are leaking DC current?
It seems like a good little amplifier to use as a portable headphone amp with a couple of lithium ion batteries.... The data sheets show specifications for up to 32 ohms and it should theoretically provide enough volume... It's also apparently bridgeable.... Hmmmm I just might have to grab a few boards from eBay to experiment with.....
I’ve got a amp need fixed if your upto it?? I’ve got all parts to fix
I've been looking for an easy and inexpensive preamp for bass guitar.
Do you think this or the njm2073d would be a good candidate?
No. If you want a Preamp, then neither of those POWER amplifiers are suitable.
try a LM386
I hope your dad feels better.
Hope your Dad is doing ok, John. Happy Holidays!
Thanks Mark!
Thank you for the Trees i missed em 😁
I put a Like instantly as some weird music comes on :) Got my dose of "acid folk" for today - thank you, John! Regarding the amp - this just gave me an idea - can it be used for headphone amp that uses DIP8 sockets?
Please make videos on LA4440 amp power test
I enjoyed this video, thanks in advance
Ive just subscribed. One of your videos was related to a bigclive video
TDA2822 Circuit Diagram please
Hey I have something I'm considering sending in for you to check out. It's a design for a small regulated +/- dual supply that I came up with. I'd really like someone to test it independently. I can send it pre-assembled. Would you be interested?
Can you send me the diagram sir?
I have sercute board that was damage. Are you able to make it. If you provide me your email ID then I can share the products photo.
Diagram plz tda 2822
I got a couple of these for free and am getting really nasty popping and cracking with the volume all the way down. Any ideas? Been hunting all over for an answer and have found one. I made a little portable speaker box could it just be interference for the speakers being in close proximity? imgur.com/gallery/jh8lt9R
Getting crackles with the volume down sounds like a power supply connection problem. Those blue screw terminals are junk. Be sure the wire is secure in it.
@@JohnAudioTech didn't see you reply here till recently thanks. Pretty sure It was just a junk chip or something. And good advice on not using 12v with these counterfeit ones. Had one start smoking immediately after hooking it to a 12v battery. Thanks for the informative videos!
this chipis still very popular and sounds very good. but guess they are all knock-offs though.
chinese fab/clone happens more frequently than u think.
Nice!
Happy hoeydaze
PAM8403 is a better amp.
They sucked