TDA7563B DD （POwerSO36）

[hke.1]

The original TDA7563BDD is replaced by TDA7563BPD. What is the upgrade after the upgrade? Please explain in detail. Thanks. Maybe we can replace the chip with a better one. Any recommendations? Not afraid of expensive. Just as long as it's good.

[Peter BENSCH]

Welcome, @hke.1​, to the community!

There was/is no TDA7563BDD, what you mean is an additional marking DD not being part of the ordering information. If it's not a fake, it's the TDA7563BPD.

And because the component has not been discontinued and still is in full production, I'm moving it from Discontinued Products to Audio Amplifiers.

If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

/Peter

[hke.1]

Is there a better chip to replace it?

[Peter BENSCH]

How do you define "better chip"?

If you equate that with "more output power", then it has to be at least doubled so that you get a significantly noticeable increase in volume - the ear perceives volume changes as logarithmic. In this case, however, you would not get any further with a Class-AB amplifier, since the achievable output power depends on both the supply voltage (classic in automotive is about 14...15V) and the load resistance (minimum 1 ohm) and you would have to switch to a Class-D amplifier.

Regards

/Peter

[hke.1]

My amplifier supply voltage - +24v. step up to 24V Can I replace the best chip?

[Elektronik]

Hello St Experts,
I have a question regarding TDA7563B.
in my BMW Radio is TDA7563B DD installed. And in the market i found only TDA7563B PD.

What is the difference between DD and PD?

Many thanks for the help
HD

[Peter BENSCH]

Welcome @Elektronik, to the community!

Did you read my first posts in this thread?

Regards
/Peter