CIEM Patient Zero
Member of the Trade: Audiophile Backpack Designer
I believe this is the Data Sheet of the Chord DAC's USB Receiver:
https://www.microchip.com/en-us/product/ATSAM3U1C
It's too much for me to read, so I just skim the manual not study it.
For example, I'm trying to look for anything 5V and PWR since I self-power my USB Receiver:
Maybe there is something about GND?, but I'm out of the hobby. Just hoping there's some tidbit in the Data Sheet. But it will be like looking for a needle in a haystack.
I'm just back reflecting on my chain and if it's efficent and galvanically isolated enough for my Chord standards. Just looking for leaks in my Chain that's how I stumbled onto the Data Sheet.
For example, the optimal input is CPU (Direct Path via PCI-E) ===> PCI-E USB (ASM3142) ===> USB Cable (preferably Galvanic Isolated) ===> Atmel ATSAM3U1C ===> FPGA <===> Chord 104 MHz Crystal Oscillator Clock.
Modern DACs (Chord & Non-Chord), the FPGA (bottom left), USB Receiver (top left) and Clock (right) are in very close proximity to one another for almost flawless timing/performance.
So, the USB is important enough to give it some quality time. I'd just wish I still had a Mojo to get feedback.
https://www.microchip.com/en-us/product/ATSAM3U1C
It's too much for me to read, so I just skim the manual not study it.
For example, I'm trying to look for anything 5V and PWR since I self-power my USB Receiver:
Maybe there is something about GND?, but I'm out of the hobby. Just hoping there's some tidbit in the Data Sheet. But it will be like looking for a needle in a haystack.
I'm just back reflecting on my chain and if it's efficent and galvanically isolated enough for my Chord standards. Just looking for leaks in my Chain that's how I stumbled onto the Data Sheet.
For example, the optimal input is CPU (Direct Path via PCI-E) ===> PCI-E USB (ASM3142) ===> USB Cable (preferably Galvanic Isolated) ===> Atmel ATSAM3U1C ===> FPGA <===> Chord 104 MHz Crystal Oscillator Clock.
Modern DACs (Chord & Non-Chord), the FPGA (bottom left), USB Receiver (top left) and Clock (right) are in very close proximity to one another for almost flawless timing/performance.
So, the USB is important enough to give it some quality time. I'd just wish I still had a Mojo to get feedback.
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