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A breakthrough in digital system clocking
As digital music formats and system components march ever forward in quality and capabilities, high-end audio systems increasingly rely on the precision of their clocks to keep the digital realm in order. The greater dynamic range of high resolution files for example is only realized with the help of modern clocks that are capable of working frequencies nearly ten times higher than what was common just a handful of years ago.
However, today’s high-frequency DAC clocks are costlier and much harder to design and build than ever before. Even systems that make use of traditional external clock generators (10MHz reference clocks or sampling frequency word clocks for example) are limited by the performance of the DAC’s own internal clock. The DAC can reference the external component to create its clock signal using PLL circuitry, but it can never resolve that signal more precisely than its own clocking mechanism (usually based on a crystal oscillator) allows.