Class D audio amplifier recommendation

[Mook Johnson]

I think Cladd D audio might be a neat thing to play with. I've heard that
the sound quality can suffer if the component selection is not done
correctly.

Any recommended components that have proven themselves with sound quality.
This will be a bout a 15-25 watt power supply from batteries so it needs to
be efficient.

 

[Ross Herbert]

On Tue, 05 Oct 2004 02:20:18 GMT, "Mook Johnson" <mook@mook.net>
wrote:

|I think Cladd D audio might be a neat thing to play with. I've heard that
|the sound quality can suffer if the component selection is not done
|correctly.
|
|Any recommended components that have proven themselves with sound quality.
|This will be a bout a 15-25 watt power supply from batteries so it needs to
|be efficient.
|
There are a number of IC's around for Class D amps (Maxim, National
Semi, Zetex, NJR etc) but you would have to do all the work necessary
to get it into a working design. If you wanted to start with a proven
design you might consider the ZAPpulse from LC Audio
http://www.lcaudio.dk/com/zp2.htm although this sounds a bit of an
overkill for your requirements.

 

[Winfield Hill]

Ross Herbert wrote...

Ross Herbert wrote:

| Mook Johnson wrote:
|
|| I think Cladd D audio might be a neat thing to play with. I've heard
|| that the sound quality can suffer if the component selection is not
|| done correctly.
||
|| Any recommended components that have proven themselves with sound
|| quality. This will be a bout a 15-25 watt power supply from batteries
|| so it needs to be efficient.
|
| There are a number of IC's around for Class D amps (Maxim, National
| Semi, Zetex, NJR etc) but you would have to do all the work necessary
| to get it into a working design. ...
You might also take a look at the IR website for Class D design info
http://www.irf.com/product-info/audio/classddesign.html

It's surprising to see a list of class-D amplifier IC manufacturers
without the 800-pound gorilla of class-D IC technology, namely TI.


--
Thanks,
- Win

(email: use hill_at_rowland-dotties-org for now)

 

[Pooh Bear]

Mook Johnson wrote:

I think Cladd D audio might be a neat thing to play with. I've heard that
the sound quality can suffer if the component selection is not done
correctly.

The performance of Class D can be truly dreadful if not carefully implemented.

Any recommended components that have proven themselves with sound quality.
This will be a bout a 15-25 watt power supply from batteries so it needs to
be efficient.

See www.tripath.com

TI also do some lowish power Class D stuff.


Graham

 

[Joerg]

Hi DD,

TI also have an "alternative" approach which reduces the fundimental
carrier component and increases higher frequency components to ease
the LPF design to the point where they claim that the LS inductance
does the job, any comments?

If there were cables going to the speaker I would feel quite uneasy
about that.

Regards, Joerg

http://www.analogconsultants.com

 

[Ross Herbert]

On 5 Oct 2004 05:55:31 -0700, Winfield Hill
<Winfield_member@newsguy.com> wrote:

|Ross Herbert wrote...
|>
|> Ross Herbert wrote:
|>
|>| Mook Johnson wrote:
|>|
|>|| I think Cladd D audio might be a neat thing to play with. I've heard
|>|| that the sound quality can suffer if the component selection is not
|>|| done correctly.
|>||
|>|| Any recommended components that have proven themselves with sound
|>|| quality. This will be a bout a 15-25 watt power supply from batteries
|>|| so it needs to be efficient.
|>|
|>| There are a number of IC's around for Class D amps (Maxim, National
|>| Semi, Zetex, NJR etc) but you would have to do all the work necessary
|>| to get it into a working design. ...
|> You might also take a look at the IR website for Class D design info
|> http://www.irf.com/product-info/audio/classddesign.html
|
| It's surprising to see a list of class-D amplifier IC manufacturers
| without the 800-pound gorilla of class-D IC technology, namely TI.


TI = etc