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Clock Basics Slide 3

At the most basic level, a clock is a device that generates periodic signals at a specific frequency. Systems that need a reference to time for synchronization, command execution, or data transfer will use this periodic signal to perform these functions. Typical devices within the signal chain that perform these functions are those that interact with digital signals such as the processing unit, which can be either a DSP, FPGA, or ASIC, the data converters, and interface components such as USB or SERDES. The network of clocking devices provides the frequencies to each of the system blocks so that it can perform its intended function.

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