Tesla is showing this limiter for their optocoupler, on their application notes.
I'm trying to get some samples for further tests.
They do not have a Western rep,, only sell direct, which is a problem.
Search found 169 matches
- Mon Mar 02, 2015 9:05 am
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
- Sat Feb 28, 2015 8:23 am
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
Re: Limiters with optocouplers
Has anyone built this limiter, using Photonix (ex Silonex), using their 32SR3 optocoupler? http://media.digikey.com/pdf/Data%20Sheets/Photonic%20Detetectors%20Inc%20PDFs/Audio%20Limiting%20-%20NSL-32.pdf I'm not sure if those optocouplers are RoHS approved, are they? Some OC, like Vactrols seem not ...
- Thu Feb 26, 2015 9:16 am
- Forum: Pro Audio Design
- Topic: Designing the pcb
- Replies: 12
- Views: 22376
Re: Designing the pcb
No, even if I am not too sure of the decision, we jumped to a split supply design. Sorry I didn't inform that when I opened the thread, but I'm glad you remember it. The split supply is more "conservative", IMHO, and I'm not sure it will serve well my original purposes for this box project...
- Sun Feb 22, 2015 9:44 pm
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
Re: Limiters with optocouplers
Can you elaborate a bit more on the 1570 and INA163 trick? I mean the 1510 circuit also has two diodes linking RG to the inputs. Where can I find the Texar circuitry? I've also been told that a non-RoHS approved is not allowed to be sold in Europe for instance, so a Vactrol based preamp would not be...
- Sun Feb 22, 2015 5:00 pm
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
Re: Limiters with optocouplers
Unfortunately I won't be able to use the limiter at the input, as it should, because the chip I'm using (THAT 1510) won't allow it. That or any chip like it. So I will be using one in the second stage. Many people, like Tascam, are doing that now. Electronic differential inputs won't allow a Vactrol...
- Sun Feb 22, 2015 3:07 pm
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
Re: Limiters with optocouplers
Did the design with optocouplers I attached showed well? On mine Firefox it doesn't.
Here's a simpler design, but I'm afraid every design works with its specific optocoupler, right?
Here's a simpler design, but I'm afraid every design works with its specific optocoupler, right?
- Sun Feb 22, 2015 2:29 pm
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
Re: Limiters with optocouplers
Thanks for the update. I composed a drawing, comparing the circuits both manufacturers propose. I asked for help from support on both manufacturers. Let's see what they suggest. The idea is to protect the signal from clipping peaks, which might save a recording in unexpected circumstances. Apparentl...
- Sun Feb 22, 2015 1:15 pm
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
Re: Limiters with optocouplers
The reason seemed to be that they were made with cadmio or lead, if I am not wrong. It was not a technical or quality reason.
- Sun Feb 22, 2015 12:59 pm
- Forum: Pro Audio Design
- Topic: Limiters with optocouplers
- Replies: 48
- Views: 126933
Limiters with optocouplers
In the past limiters with Vactrols were the norm. But the politically correct present seems to have make them almost disappear. Actual VTL parts are hard to find, or every expensive (Farnell) or rather suspicious to buy (Ebay or other China suppliers). But I found these guys in Czechoslovakia that s...
- Sun Feb 22, 2015 6:53 am
- Forum: Pro Audio Design
- Topic: Designing the pcb
- Replies: 12
- Views: 22376
Re: Designing the pcb
This is being my first in many areas. 1) I will be using two boards for the main design, and probably add some piggy backs, e.g.: for the limiter and headphone amp. 2) Unfortunately this is a TH version, which makes fighting for every millimeter a continuous, and sometimes losing, fight. 3) At the s...