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The volume control is implemented with extra bits so there is no loss in accuracy, just as described in the ESS article:If digital volume change changes the bits ( has to!? ) what does "bit perfect" mean in this context?
The volume control is implemented with extra bits so there is no loss in accuracy, just as described in the ESS article:If digital volume change changes the bits ( has to!? ) what does "bit perfect" mean in this context?
After giving this some more thought I don't think there's a way to guarantee no drift because the I2S clocks inside each device will be a synchronous to each other. Unless the CS8416 generates the I2S clock synchronous to the incoming spdif.
Exactly. The only way to avoid drift is to drive them by a single clock.
Per the data sheet the device can accept voltages up to 3.6 V, because I am running the device from 3.3. So 2.7 V will be fine.
If you notice it says "except RXP[7:0], RXN", those are the spdif inputs. So the 2V min does not apply.There is something I don't quite understand, please bear with me here.
I found the part you were referring to in the datasheet:
View attachment 15351
So VIH max is (3.3+0.3)V, but min is specified as 2V, which is way higher than what spdif typical P-P voltage is supposed to be (between 0.2V and 0.6V, 0.5V typical according to rane)
What am I missing here?
Thanks, so 0.2V min and 3.6V maxThese are the two you have to look at:
The unit is silent and pop free during all these conditions.- Is the unit pop-free on turnon/turnoff? (completly silent?)
- How does it handles sampling frequency changes on the spidf input? (noise, etc.)
- Hox does it handle faulty spdif signals, or spdif cable pluging/unpluging?
Bare board will be available, RCA and Power on the PCB for final design to ease assembly. I will be posting pictures later.-Any plan of releasing this as a PCB in order for the user to be able to group several DACs in a single box, and possibly include the 110/75 ohms conversion? (given their position I suppose the DC and RCA ins are not mounted on the main PCB?)
If you can solder it would not be that much work to remove the power and RCA connector so that you can bring in from somewhere else.I don't think my needs are that uncommon: if the user wants to install the PCB in a box he might want to also add a powersupply and possibly different digital input options (spidf, aes, usb, etc.), in which case he will want to be able to play with these connections without loosing the benefit of having the XLR directly mounted on the PCB.
I will have something to send to amirm for review by end of this month.I dont buy anything that is not at least meassured by @amirm/this site, if not approved or recommended.
The DC plug is 2.1mm ID, 5.5mm OD, positive center.Re/ Gala: Will this DC plug be compatible to ifi iPower12V pls?
I do believe that it is a great value considering that you are getting two devices in one. The Pre-amplier is built in. If you try to find two devices (DAC and pre-amp) that deliver the same performance you will be out a hell of a lot more money.Ok, it matches perfect then, but US-$ 400 is not cheap, anyway, lets see how it measures...........
The reasoning is that, you can get USB to SPdif converters for under $30.I don't understand the absence of USB in a modern DAC ...
I'm not sure I'd call a DAC based on a 14 year old chip modern.Hi
I don't understand the absence of USB in a modern DAC ...
Well,frankly speaking, I really think you should change your marketing strategy. Like the Applepi, you make great dacs, but from the customer's perspective, it seems like your products always miss something. Of course I understand your concern, but most people dont. They want your Applepi coming with the STACKING HEADER and your gala with USB, even if may cost $30 more. Just my 2 cents.The reasoning is that, you can get USB to SPdif converters for under $30.
Since my products are not made in high quantities it would cost me a lot more than $30 to add USB functionality.
GALA is essentially jitter immune on the spdif input so even a cheap USB to SPdif converter will work great.