The FPGA automatically control the frequency assignment and switching, and the femtosecond clock has independent ultra-low noise LDO power supply. X-SPDIF 2 uses 2 Accusilicon high-quality femtosecond clocks as reference clock source, which work at the state of 44.1kHz, 48kHz and their multiple sample rate.
The strong XILINX SPARTAN FPGA assist XMOS manage and assign the clock, processing DoP transcoding and JITTER reduction for IIS port. The new generation XMOS U208 is an 8 core digital signal processing unit, it has powerful multi-core and multi-threaded processing capabilities, and it is the industry’s most advanced USB Class 2.0 digital audio solution by far.
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