TDA7264 easy to build stereo audio amplifier
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- čas přidán 31. 03. 2020
- The TDA7264 audio amplifier provides two 20 watt amplifiers in one IC for an easy to build DIY project.
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Mail: PO box 362, Vandalia, OH 45377
Email: johnaudiotech@gmail.com
Thank You! - Věda a technologie
Cudos to that guy that sent you the oscilloscope! You are a great man Sir and noone but John deserves it more
Jule Rulez what do you mean ! I deserve it more 😂
Anything diy audio amplifier related is always interesting.
Snickers Audio Tech with assistant John 😹
Excellent video John! I request you to include crosstalk measurements in future videos ;)
Great and informative video. Also congrats to your new oscilloscope, the person who donated to you must be a cool guy!
Thanks again. Love to see a video of you setting up the fft on the new OS. Would find that super interesting.
After taking a cursory look at the datasheet, Snickers obviously decided this amp' has paw performance !
Thanks Johnaudiotech for your work.
Stay safe and sound (pun intended) John. And keep breathing, whatever happens.
It's Wednesday afternoon as I type. I haven't been out since Saturday night.
Love your snicker 😂😂! Good video as always
output watts clean is pretty nice at 12v and 16v, I like it.
Hello John, You seem to be doing good, that's good. I hope your Brother and Family are doing well. I wish you all the best. Nice chip amp, it seems to perform quite good. Next best thing to an LM1875, ?. Snickers can always make an appearance in your videos, I look for it. So far, so good here in Oregon. Best regards, C.
Quando fui autorizado da JVC eles tinham uns modelos de micro system que utilizavam este amplifier, e dava muitos problemas nas altas frequências. Hoje fabrico amplificadores sob encomenda, trabalho com o simulador Multisim 14.2, estou trabalhando atualmente no JHL simétrico, em breve estarei construindo o primeiro protótipo. Olá John gosto muito do seu canal, sou inscrito recente, sou do Brasil, estado da Bahia, cidade Feira de Santana, grande abraço continuarei assistindo aos seus excelentes videos.
Great work sir
This is very good video / instructions. Thank you!
Awesome video. Thanks for sharing.
I love these in deep builds you do, just an idea but you could make a more complete build with transformer and case, make a series video of it and then sell it on ebay for us.
I see that in some of my favorite youtubers, even the ones who doesnt work with electronics, like ThinMatrix, he documents the development of a game untill the release of it, it's genius because he can get input from ppl interested and make the game more attractive to his audience before launch.
Excellent video sir
Your vids are my fave, hero
I usually use my phone with spectrum analyzer software to determine any ultrasonic noise coming through speakers.
Спасибо за тест ! Отличное видео.
Good job
Good job !
texas instruments has some nice IC's. but, their prices a insane, 4 the ''new'' chips...great vid!!
That's used in a few Bass guitar practice amps.
Very nice video again. But where can I get the heatsinks with Vertical fins I see in all your videos ?
There are so many different TDA chips. I find it really difficult to decide which one to use for my project. It would be great if you had a video comparing them in some way!
Nice video. What if you need more power, like stage power, can you put 100 of them in series to get 2kw?
15:35 you don't give up LM1875 for no one another amplifier. :D good ic that 5 pins
thank you
Hi, love youre videos. Can you recommend this amp for 6 ohm speakers? Tnx.
How about a few microhenries of inductance on the output to settle down that oscillation?
Hi John, this is a nice video. Thanks for sharing an ameliorated circuit for the TDA7264. In a previous video on the TDA7264 (Yes indeed, the symbols for Omega are Ω and ω, so the lowercase symbol resembles a W) you mentioned that the TDA7265 is essentially the same amplifier. The TDA7265 datasheet provides circuit schematics so that you may run it on a single power supply and also in bridge mode. No such information is available in the TDA7264 datasheet, however it looks like the same circuits should work, based on the similarity of the two chips. What are your thoughts on this?
Strongly suggest anyone (Inland Chinese) to make a standalone PCB for John's circuit and host in PCBWay.
You mention that it will 'shut down' when the supply goes below about +/- 7V...
I am wondering whether this is the mute circuit kicking in? (Supposedly 6V).
It'd be easy to confirm it by simply moving the 'bottom' of the zener resistor from the 0V rail to the negative supply rail.
Hi I have tda7265(25w+25w), I was just curious how good is it to make it as btl, does it have good quality sound over normal stereo ?
hi i'm looking for 12v amp to power my speakers , ive been looking throu all sorts of cheap ones from china but would like as clean sound as possible but just lost at how many options their are, watched your video on tp3116 based amp but sounds like not very good, any thoughts? this one reminds me of the amp that was in my fidelity record player in the 70s :) what you think of tda7377 ive fiund cheap car stereo with this chip, what you think?
i have a TDA7265 Is it the same
Where's the Zener at 13:00? At 26:30, it may be a scope trigger threshold.
Great video as always 👌.
I am just curious to know what happens to an amplifier if the output load is suddenly removed, like what happens with a voice coil burn.
Nothing really. The current stops flowing which isn't a problem for solid state amps. With inductive loads, a small spark may occur at the point where the connection was opened. This is caused by the collapsing magnetic field in the inductor (speaker coil). Most amplifiers are designed to deal with it safely.
@@JohnAudioTech thank you.
@@EngineeringEssentials What if it was a tube amp?
Nice amplifier. Can i use it that low pass on input on any amplifier? like tda7294 tda2050 or single supply amplifier like tda7297 or 7377 ?
Yup. For the most part, yes.
That royalty free cha cha cha sounded interesting; source?
TDA7265 would be better for me it has gain adjustment outside and can be bridged for mono output , say i want to run a bass driver with one of these . Problem , pinout wont fit the protoboard , but what can you do . Does anyone know of a better solution for me , what im doing designing active crossovers for my 2 way bookshelf speakers ,
Now i need and amp for each driver , preferably more power on bass .
So ,for now the best i found is TDA7265 , anyone know of something better
do you have a video that teaches us how to make a power supply if we wanted to box this project up?
This video has some info on power supplies for amplifiers. czcams.com/video/iki2nTcbkvA/video.html
Hi John, good to know you and S. are both safe at home. I have many firends in Ohio, they said it is still safe ut it will get worst soon so be prepared.
I actually miss your class D amplifier tests.
I built a good product based on next gen TI chip amp i believe you should try: TPA3255, high perf/low cost.
I have to apologize but I have 2 requests for you:
1) what do you think about purifi Audio 1ET400A? (last Bruno Putzeys signature, seems the best in class (A,AB,...D,...)
2) you said you love music, I believe you do (can't forget your review with the Amazing sound of Jimmy page guitar in Heart full of sound), so pls "tell us your favourite (20?) songs. I'd like to create JAT playlist on spotify.
We thanks for what you do, really
My Best
Lorenzo, Rome, Italy
Hi John, I'm building this amp...thanks for all the tips! One question...the 4.7 ohm resistors on the output look like they might 1W or more. What power rating do you recommend for them?
1 or 2 watts should be fine for this amplifier.
tda7264 vs lm1875..which is better?
Is there a way to run a vacuum tube ahead of this chip, as a preamplifier? Like with a 12AX7 or one of that family?
Just drive it with a vacuum tube preamp.
No one is going to take a simple little project board like this, then add an HV supply and filament power in order to add a tube input stage.
I designed and built a desktop amplifier before I ran into your channel, I was wondering if you would look at it and give me feedback on it. I researched everything I could and learned pretty quickly how to do PCB layouts and schematics, hopefully I didn't do a terrible job.
Send images to johnaudiotech@gmail.com and I can take a look when I get the chance.
Can anyone help me with a question. How are 1000 watt amps made, or 500. My point, if the chips only handle a limitied amount of power how do the make high power amps? Is there multiple chips tied together? Just curious....
John, could please upload a component list? Cheers
I now see that there is a list on the spec sheet for the demo board
sir why opamp use home theater 2.1 without opamp home theater working without 4558 opamp make low pass filter for home theater
Hi John is there a way to contact you? I would like to ask you a few questions...
Can it be bridged
You would have to invert the signal to one channel. The TDA7265 is the same chip with external feedback so you can bridge it easier.
Hey John,
I Salvaged 2 old Sanyo stk394-250 chips. Are they any good? Would you be interested in having them? I would just give them to you! I don't know if they're good but thought maybe it would be interesting to watch you build something with them.
Hi Ronnie, They seem to be convergence amplifiers for projection TVs. I wouldn't have any use for them but I do appreciate the offer.
@@JohnAudioTech ok
Hii John sir,
I am a beginner in audio electronics.
A question, why their is a capacitor in series with feedback path in non- inverting amplifier???
Please answer🙏🙏
The capacitor keeps the DC gain at one to prevent any DC currents from getting amplified causing an offset voltage on the output.
Thumbs up for Snickers.
Do u sell them
Isn't it's efficiency way too terrible for mobile devices?
My video is TA8216 toshiba
10% THD is for the hard rockers!
Roast those tweeters!
@@JohnAudioTech 🔥🔥🔥
Get one of these hifi walker h2 dap players instead of that Sony unit, It supports up to a 256gb micro sd and will be able to fit a decent chunk of your music collection. www.amazon.com/HIFI-WALKER-H2-Resolution-Bluetooth/dp/B072C4YPCG It supports 192 khz 24 bit flac files as well as 384khz 32 bit wav files, mp3 and dsf or dff files @ 5.6mhz, it has two 3.5mm outputs, one is a fixed gain direct 1.4v out, the other is designed for headphones. This is the best dap you can get for the money, you'd be hard pressed to do better for even twice the cash. It uses a ti pcm 5102 dac chip. You can even use it as a stand alone dac preamp on a windows pc! It is machined out of a nice zink alloy shell, it has some weight to it, yet again, for 100 bucks or so plus another 34 ish for a 256 gb card, which i use a samsung evo micro sd in mine, here is a link to the sd card i use. www.amazon.com/Samsung-Electronics-microSDXC-Adapter-MB-ME256HA-dp-B0887P21Z2/dp/B0887P21Z2/ref=dp_ob_title_ce
Here are the iems i use www.amazon.com/dp/B07DL2FPBL/ref=emc_b_5_t These are incredible for the money, i recommend dakoni mercury replacement iem foam tips for them, www.amazon.com/Dekoni-Audio-Moldable-Isolation-Earphone/dp/B01M0SGE1S/ref=sr_1_4?dchild=1&keywords=dakoni+Mercury+foam+tips&qid=1598140971&s=electronics&sr=1-4 these iems have a dual driver design with detachable and replaceable mmcmx connectors cables.
They have a frequency response from 10hz - 40khz. Heck, I'd love to see you do detaild performance measurements on the player! You can fit just shy of about 15,000 songs on it "format and resolution permitted." Here are the specs THD:
It's not year 2000.. why are you still using mp3 players? just asking
You're not fooling me with this elaborate April fool's joke John. How long did it take you to make that fake data sheet for that non-existing chip?