Digital Audio Pot

[blu_line]

Hello All,


I want to use a digital audio pot in my design and i think the CS3310 is quite impressive.
But i heard/read some where, and i do not know anymore, that the perfomrnace can be improved.
Either by using it in differential mode or in a feedback path.

Does any one know ?????


grtz,

Simon

 

[sonnya]

TI has a dropin replacement called PGA2311 with a better performance.

Tha PGA2310 is also a dropin replacement but it needs higher supplyvoltage : +/-15V.

Sonny

 

[blu_line]

Hello,

Who sells those PGA2310 and CS3310 ???
I am not doing this project proffesionaly, as probably many of you., so i need a source where i can by them a piece (or by the 3 or 5).


grtz


Simon

 

[sonnya]

You can get the PGA2311 or PGA2310 in small quantity at www.digikey.com

Or if you have ARROW located in your country try them but be prepared to take a minimum of ~ 250 - 1000pcs.

Sonny

 

[sonnya]

SORRY ... You can get up to 3 samples of the PGA2310 or the PGA2311 direct from TI.

Sonny

 

[mlloyd1]

Simon:

How are you planning to control the device?

I share some code for an AVR which was shared with me at:
http://www.enteract.com/~mlloyd1/audio/mdac-volume-control/

Michael

 

[blu_line]

Hello


I intend to use a 16F84/628 or 877.

I have updated my home page with the 3 projects i am working on today, see www.geocities.com/stdf23173.

grtz

Simon

 

[sonnya]

mmmhhh .. doesn't exist!

Sonny

 

[blu_line]

Drop the dot at the end !

www.geocities.com/stdf23173

 

[sonnya]

Nice PCB layout .. Look's like you do it daily!?



I do to.

Sonny

 

[blu_line]

Well, quite a lot.
It is one of the things i dislike about designing my own stuff. Schematics is OK, SW is OK, making the PCB (exposure, etching) is also fine.

What do you do ?

grtz

Simon

 

[sonnya]

Hi Simon

At work i make hydraylic controllers for lift's like levelcontrol .... Some ANALOG design and lot of digital/programming/PCB design ... It is mostly customdesign..

I make program's on 8051(assembler), AVR(Assembler) and SABC165 (C + asm)family. I hope to get technician this year to help me.. I have about 10 - 20 PCB/year.

My hobby is DIY audio when i have time to do it... Only amps until know..

What du you do for living?

Sonny

 

[blu_line]

I work as HW designer at Philips Semiconductors in The Netherlands. We are the Digital Audio Competence Center.
I have started as application engineer. Grown to Fast prototyper and VHDL designer.

So far i have made my own FPGA board based on the APEX20K1000. And currently i am working on an in house designed DSP.

My interest alwas has been audio (being it digital or analog)
(i made a side trip to Alfa Romeo (i had a 33 and a 75) but if you are talking about a bottomless well, then this was it. Sold them so i got more money to spend on audio now).


Where in Danmark do you live ?


grtz

Simon

 

[sonnya]

Hi, Simon

I live in Odense on the island called Fyn.

It looks like you are well into Altera... I have only worked with the EPM3064A .. Its size fits right into my applications...

I would like to work with the bigger ones .. Try out the softcore micros .. but we are a little company with a small budget..

- Sonny