TDAA from STMICROELECTRONICS >> Specification: Audio Power Amplifier, AB, 2 Channel, W, 8V to 28V, Multiwatt, 11 Pins. Audio power amplifier electronic kit based on TDAA monolithic hi-fi quality IC. Dual class AB outputs, designed for high quality stereo applications. TDAA NTE Equvilent NTE IC – DUAL 10W STEREO AMP VCC = 24V TYPICAL LEAD SIP. NTE Data Sheet Data Sheet. NTE.

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They are really brand new. When I start about 2. Don’t just buy anything your local seller recommends. The amperes are just fine, check out the video.

TDA2009A 10 Watt Stereo Amplifier

EBay from China is always a bad idea. Anyway, is it a good idea to find an AB amp on www. Some larger seller has a large stock of them. Home Questions Tags Users Unanswered.

If I connect a speaker 8 ohm, about 10W to the right input or tdw2009a left input, the sound is just great. When I bump it up to about 4V, the sound it totally distorted. Yeah, then you reduce the load impedance, and thus, the voltages that the transistors can supply get lower, and your sound gets compressed to a smaller voltage range.

When I rise it again to about 7V, the sound is really good, but one of the speakers starts to do that tick tick tick The datasheet looks like it’s from the mids, at the very least.

You can often get them for free as samples, or for little money at online retailers. That is tfa2009a style. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated td2009a of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

They probably haven’t been produced in the last 15 years, really.

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Sign up using Facebook. Sign up using Email and Password. I’m running the IC 8V. Sign up or log in Sign up using Google. St doesn’t even list then on their products page.

Post as a guest Name. I do personnally know the seller and he sells a lot of these every day, so he has to buy new one like every week or so. Even if DIY audio enthusiast often swear by some older amplifier designs, this IC is simply not worth using in the year Dj Sushi 18 5. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

I’ve built this according to the schematic provided in the images, but I’ve changed the capacitor connected to VCC and GND at pin 9 of the IC to uF and uF with no change I’ve done this because of my lack of capacitors at home.

TDAA NTE Equivalent NTE IC – DUAL 10W STEREO – Wholesale Electronics

It’s a 30W 5A power supply. It’s running about 0.

Is there any way to stop the weird ticking? It doesn’t have any undervoltage detection, so it’s no surprise that. So you’re simply operating out of the specifications of that IC.

The chip needs something between 8 and 28 V to work properly. Well, thank you for your advanced answer, I really appreciate it.

TDAA 10 Watt Stereo Amplifier | NightFire Electronics LLC

When I connect both speakers to one channel, even at bigger volumes, it goes just fine. I’m still recommending a not-as-obsolete amplifier ICs.

I’ve actually requested the IC from my seller, because I thought that it is some kind of good quality for a low price, as I’m quite a beginner in tds2009a. But when I connect another speaker the same as the first one to the other output either right or leftone of the speakers starts a hda2009a ticking noise on the bass speaker.

Or combine any of these measures – especially since the tdaa has been declared obsolete by the last major manufacturer ST for a while now, it’s very likely you’ll find better amplifier ICs.

Go to the website of the former manufacturer of the TDAA it’s http: Try tra2009a usual retailers – mouser, digikey, element14, adafruit As I increase the voltage, the ticking goes louder. Increase the voltage to at least 10V.

In your tda209a, the power supply is set to 7. I’d claim “it goes just fine” is not really true. EDIT See my other answer.