PGA2310 control module

pierluigiugolotti · 17th April 2012, 01:23 PM

Hello everybody, I'm a new member.
I'm working on a project of an interface for the pga2310 volume control IC.
The interface can also control an input select board equipped with relays
or analog switches, and is remotely controllable with an RC5 type RC.
I think it could be used as a starting point for various preamp projects.
It's intended for the diyers that aren't familiar with microcontrollers.
Here is a VIDEO of my first prototype.
I'm planning to make a kit if someone is interested.
I attach some image of my idea, it's a compact module of 120x40mm (4.7x1.6'').
Comments and suggestions are welcome.

Bye.

Leon08 · 17th April 2012, 04:10 PM

Not bad, but I would use PIC18.It has more memory and is easier to program.
What if you need to upgrade your soft. Is there any possibility for this?
And can you tell what compiler you used.

pierluigiugolotti · 17th April 2012, 05:55 PM

Quote:

Originally Posted by Leon08

Not bad, but I would use PIC18.It has more memory and is easier to program.
What if you need to upgrade your soft. Is there any possibility for this?
And can you tell what compiler you used.

I had some free sample of pic 16F1934 from Microchip and
I wanted to test them..
These are enhanced mid-range devices whit some nice features.
The software uses <3/4 of program memory and < 1/3 of ram,
so I think there is room for future additions.
However it's certainly possible to use a pic18.
There will be an ICSP connector for fast software update.
The program is wrote in assembly using MPLAB IDE.

Leon08 · 17th April 2012, 06:45 PM

You must be very good in in assembler if you can write such a complex program.
Is there any chance that you will release the source code?

pierluigiugolotti · 17th April 2012, 07:32 PM

Quote:

Originally Posted by Leon08

Is there any chance that you will release the source code?

Not for the moment, cause I'd like to try to sell the kit,
or at least the programmed microcontroller.
If my business will fail (I'm not a business talent

) I'll release the software.
Be patient.
Bye.

woodturner-fran · 17th April 2012, 07:44 PM

How does it compare to say, a stepped pot?

Other than that it looks good! I think I would rearrange the selection so that source selection comes before balance.

Fran

pierluigiugolotti · 17th April 2012, 08:43 PM

Quote:

Originally Posted by woodturner-fran

How does it compare to say, a stepped pot?

I'm not a great audiophile, so I will not enter in this debate.
On the paper the pga2310 looks very good (and pga2311 has still lower distortion).
I think the price is very low compared to that of a good quality stepped pot.
In addition it has the source select feature and is remotely controllable
(maybe there are motorized stepped pot, I don't know).

Quote:

Originally Posted by woodturner-fran

Other than that it looks good! I think I would rearrange the selection so that source selection comes before balance.

This is very easy, I'll think on it.

Bye.

Leon08 · 17th April 2012, 11:22 PM

I think that right now time is not good for business, global war on terrorism is gone too far and lasts too long. People have no money and life is expensive.They have problems to get enough money for food, so it's very difficult to sell something what they don't really need.

redjr · 17th April 2012, 11:40 PM

Quote:

Originally Posted by Leon08

I think that right now time is not good for business, global war on terrorism is gone too far and lasts too long. People have no money and life is expensive.They have problems to get enough money for food, so it's very difficult to sell something what they don't really need.

You're just full of good news today!

woodturner-fran · 18th April 2012, 12:00 AM

Well, I don't know. You can buy a rebuilt kit on eBay for ~€50 or so. Having said that, it would be nice to have access to have custom names etc etc.

I must look at these chips again. It would be very nice indeed to have remote control on a preamp, plus all the other functions. But the killer question for many I think would be "does it sound as good as a gigawork stepped pot from ebay?".

If a comparison can be done, or info found already out there then that would help sales I'm sure.

Fran

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17th April 2012, 04:10 PM	#2
Leon08 Banned Join Date: Sep 2010 Location: at Home	Not bad, but I would use PIC18.It has more memory and is easier to program. What if you need to upgrade your soft. Is there any possibility for this? And can you tell what compiler you used.

17th April 2012, 06:45 PM	#4
Leon08 Banned Join Date: Sep 2010 Location: at Home	You must be very good in in assembler if you can write such a complex program. Is there any chance that you will release the source code?

17th April 2012, 07:44 PM	#6
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	How does it compare to say, a stepped pot? Other than that it looks good! I think I would rearrange the selection so that source selection comes before balance. Fran

17th April 2012, 11:22 PM	#8
Leon08 Banned Join Date: Sep 2010 Location: at Home	I think that right now time is not good for business, global war on terrorism is gone too far and lasts too long. People have no money and life is expensive.They have problems to get enough money for food, so it's very difficult to sell something what they don't really need.

18th April 2012, 12:00 AM	#10
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	Well, I don't know. You can buy a rebuilt kit on eBay for ~€50 or so. Having said that, it would be nice to have access to have custom names etc etc. I must look at these chips again. It would be very nice indeed to have remote control on a preamp, plus all the other functions. But the killer question for many I think would be "does it sound as good as a gigawork stepped pot from ebay?". If a comparison can be done, or info found already out there then that would help sales I'm sure. Fran