Searching for volume contol ic

[CharlieLaub]

I have very good experiences with the CS3318. It's 8 channel and the specs run circles around anything else that has been mentioned here. It's only one chip so once you have the serial interface running you can do anything.
The 3318 runs on +/-9V analog but there is also a +/-5V version with reduced analog output of course, but the same stratospheric performance.

It's not VCA or such but a resistor ladder network, actually, like a stepped attenuator with 0.5dB or 0.25dB steps.
Jeff Rowland used it in some of his top amplifiers.

Check it out!

Jan

Oooh, now THAT does look interesting. Any pitfalls implementing this chip that you know about and would like to share here (or via PM)?

-Charlie

 

[scott wurcer]

Cool Audio (MFG) product page:
:: Official website of Coolaudio Semiconductors (COOLAUDIO International Limited) - www.coolaudio.com

Yes cool $2000 min order, only payment accepted (untraceable and irrevocable) wire transfer.

 

[CharlieLaub]

Yes cool $2000 min order, only payment accepted (untraceable and irrevocable) wire transfer.

Um, that was mainly for reference, to retreive datasheets, etc. I didn't know of any minimum purchase only that you COULD purchase directly...

Checking other sources... it seems that all the V2164D's have been bought up! All the vendors say "no stock, on order, lead time unknown"! Oh well, I didn't know. I did find the surface mount version and a couple DIP packaging on Ebay when doing a search just now using this search term: "(V2164D,SSM2164)".

 

[scott wurcer]

Um, that was mainly for reference, to retreive datasheets, etc.

THAT is still making the 2181 and they are the guys from DBX who I would personally vouch for. Lots of good tech notes on how to optimize Blackmer style VCA's if thats the way you want to go.

 

[Arty]

i think i just .. gona stick to a led and photosensitive resistor in an enclosed tube..
does a good job and its cheap.

 

[jjrh88]

I have very good experiences with the CS3318. It's 8 channel and the specs run circles around anything else that has been mentioned here

Specs are basically the same as the PGA2311 but double the price. (only 2 channels mind you so if you need 8 the CS3318 is an attractive option for the price)

 

[markm2]

... it seems that all the V2164D's have been bought up! All the vendors say "no stock, on order, lead time unknown"!.

We always try to keep the DIY-friendly 2164D in stock, no minimums. (Hope this is not considered 'too commercial').

-Mark
http://cabintechglobal.com

 

[mondogenerator]

i think i just .. gona stick to a led and photosensitive resistor in an enclosed tube..
does a good job and its cheap.

I like thE simplicity of this idea.

What about a slight increase in complexity?

Say volume pot for adjusting the Duty of a 555 based PWM generator for the LED?

 

[Dr_EM]

I have very good experiences with the CS3318. It's 8 channel and the specs run circles around anything else that has been mentioned here. It's only one chip so once you have the serial interface running you can do anything.
The 3318 runs on +/-9V analog but there is also a +/-5V version with reduced analog output of course, but the same stratospheric performance.

It's not VCA or such but a resistor ladder network, actually, like a stepped attenuator with 0.5dB or 0.25dB steps.
Jeff Rowland used it in some of his top amplifiers.

The VCA's may look nice but check the tracking - that may not be as good as you want!

Check it out!

Jan

Seconded, very nice controller 🙂 . I use it to control 6-channels from a stereo DSP crossover so tracking needed to be precise.