TDA7052 PDF

1W BTL Mono amplifier electronic kit using a TDA IC. Designed for battery- fed portable audio applications. Type, Through Hole. Operating Temperature, -. Supplier Device Package, 8- DIP. Package / Case, 8-DIP (“, mm). Base Part Number, TDA : TDA Amplifier Module 1W (kit): Computers & Accessories.

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It’s a high-gain amplifier and might be oscillating if you built the circuit on a breadboard. Post Your Answer Discard 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.

Post as a guest Name. That’s how a bridge output works.

You can measure the sound card’s output impedance, but it’s probably low enough to not matter. Why are you using a 50 ohm speaker? Here’s the effect of increasing volume on a sine wave: The minimal voltage listed in the datasheet is 3 V, typical is 6 V and maximum is tca7052 V, so this looks a bit strange.

amplifier – TDA output DC offset – Electrical Engineering Stack Exchange

ttda7052 I’ve never had any problems with the TDA Guill 2, 4 5. My problem is that I’m observing a large DC offset at the audio output, and the IC is getting very hot. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. That way it is possible to do without the output capacitor saves money and space.

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It sounds like you have a perfectly good amplifier that is just missing a tda7025 sink. You are probably overdriving the amplifier by using a sound card for testing.

TDA | TDA NXP, Audio Amplifier, 8-Pin PDIP Mono | RS Components

Put it on a PCB. I’ll try with a PCB and a nF capacitor next. Leonardo Rossi 80 8.

And here are the input and output waveforms Yellow waveform taken at pin 8, with reference to system ground: I already tfa7052 that the speaker and the amplifier can work well together, because they were salvaged from another circuit. All of your parameters mA for bias current for bridge output seem normal and you stated it put out a clean sound, so I do not think anything is wrong-except for a missing heat sink.

What did you do with both outputs the circuit diagram doesn’t show? The potentiometer fixed the problems with power supply voltage. Sign up using Email and Password. So far I have been able to achieve amplification, with a little distortion. It must be as close as possible across the power supply of the amplifier IC. 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.

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Post as a guest Name. If the IC is getting hot, well it needs to be mounted to a heat sink.

So where do I start fixing this? And here are the input and output waveforms Yellow waveform taken at pin 8, with reference to system ground:. Home Questions Tags Users Unanswered. The speaker is quiet much more than in the fda7052 I got the amplifier and speaker form and from time to time it seems as if the amplifier is clipping I’m not sure if that’s the right word.

The peaks seem to get distorted. Now about my problems: The gain is set to 20dB with pin 4 being driven at 1Vdc.

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The TDA was designed for an 8 ohm unit. I also used nF electrolytic capacitor, since I don’t have any ceramic at the moment. I should also mention that this is my first circuit on a breadboard, so it could be causing problems too. Home Questions Tags Users Unanswered. If the chip still overheats, it could be faulty. Sign up using Facebook.