https://www.diyinhk.com/shop/audio-kits/116-isolated...o-i2sdsd-pcb.html
2) Amanero CPLD/FPGA Combo384
3) DIYINHK XMOS 384kHz DXD DSD256
https://www.diyinhk.com/shop/audio-kits/138-isolated..dsdspdif-pcb.html
4) WaveIO XMOS isolated
https: //luckit.biz/
5) MiniDSP USB Streamer
https://www.minidsp.com/products/usb-audio-interface/usbstreamer
6) JLsounds I2SoverUSB XMOS isolated
http://jlsounds.com/i2soverusb.html
7) Russian Charleston V3
http://forum.vegalab.ru /showthread.php?t=80671
https://www.danomsk.ru/shop/19-konstruktory-i-elektronnye-moduli/178189-usb-spdif-transport-charleston-do-32-bit-384-0-kgts-energyaudio/
Combines 2 devices: Bolero and Foxtrot.
Uncompromising transport. It allows you to get an equally ideal digital signal on the I2S bus at the output of the device, regardless of the type of input (USB, Opt, Coax).
The module has 4 sequentially switchable inputs.
• 1xUSB input based on AMANERO firmware. Licensed by amanero. Used drivers for Windows XP / 7/8 - 32-bit and 64-bit versions. In MacOS and Linux operating systems, the device works without drivers, since it is a USB Audio Class 2.0 (UAC 2.0) device. From this input, Charleston receives digital audio data, writes it to the FIFO buffer (first in - first out) and outputs data from it to the DAC via I2S clocked from the master block of this DAC. The input is synchronous with respect to the source - the speed of the incoming and outgoing stream is set by the DAC master block generator. The format of the received data is only PCM, frequencies 44.1; 48.0; 88.2; 96.0; 176.4; 192.0; 352.8; 384.0 kHz, bitness 16; 24; 32.
• 3xSPDIF - two optical Toslink inputs + one coaxial 75Ω input. Receiver AK4113. Charleston accepts digital audio data from it, writes it to the FIFO buffer (first in, first out) and outputs data from this buffer to the DAC via I2S with clocking from the master block of this DAC. The input is asynchronous with respect to the source - the clock of the stream from the FIFO buffer is set by the DAC master block generator. Synchronization of the volume of the incoming and outgoing stream is carried out by the original correction algorithm with the removal or addition of samples. The format of the received data is only PCM, frequencies 44.1; 48.0; 88.2; 96.0; 176.4; 192.0 kHz, bit rate 16; 24.
Uncompromising transport. It allows you to get an equally ideal digital signal on the I2S bus at the output of the device, regardless of the type of input (USB, Opt, Coax).
The module has 4 sequentially switchable inputs.
• 1xUSB input based on AMANERO firmware. Licensed by amanero. Used drivers for Windows XP / 7/8 - 32-bit and 64-bit versions. In MacOS and Linux operating systems, the device works without drivers, since it is a USB Audio Class 2.0 (UAC 2.0) device. From this input, Charleston receives digital audio data, writes it to the FIFO buffer (first in - first out) and outputs data from it to the DAC via I2S clocked from the master block of this DAC. The input is synchronous with respect to the source - the speed of the incoming and outgoing stream is set by the DAC master block generator. The format of the received data is only PCM, frequencies 44.1; 48.0; 88.2; 96.0; 176.4; 192.0; 352.8; 384.0 kHz, bitness 16; 24; 32.
• 3xSPDIF - two optical Toslink inputs + one coaxial 75Ω input. Receiver AK4113. Charleston accepts digital audio data from it, writes it to the FIFO buffer (first in, first out) and outputs data from this buffer to the DAC via I2S with clocking from the master block of this DAC. The input is asynchronous with respect to the source - the clock of the stream from the FIFO buffer is set by the DAC master block generator. Synchronization of the volume of the incoming and outgoing stream is carried out by the original correction algorithm with the removal or addition of samples. The format of the received data is only PCM, frequencies 44.1; 48.0; 88.2; 96.0; 176.4; 192.0 kHz, bit rate 16; 24.
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