MK5818S

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MK5818S is designed as a programmable clock generator/frequency synthesizer chip. It is specially used for providing low-jitter clock signals in applications requiring precision synchronization, such as communication and multimedia systems. The MK5818S integrates a highly flexible onboard programmable ring-oscillator, enabling the flexibility to change reference clock frequencies quickly. The device supports outputs up to 100MHz and the output selectable options include different combinations of clock sources for each of the three main outputs.

The main features of the MK5818S include a wide operating voltage range up to 5.5V; ultra-low jitter performance of below 20ps; high-performance phase-locked loop (PLL); integrated crystal oscillator circuit; and adjustable output frequencies. The device is capable of producing outputs with frequencies ranging from 1MHz to 100MHz, with a wide range of options available for producing the reference and/or output frequencies. It also supports output frequencies that are independent of crystal oscillator frequency.

The MK5818S also features three main output clocks, each of which can be configured individually or synchronously. These clocks include an early-output print clock, a synchronized digital output, and a low-jitter clock signal used for synchronization in the digital domain. The MK5818S supports multiple output formats such as LVPECL, LVDS, CML. The onboard stereo differential output can be used for high-fidelity audio signal transfer in consumer electronic devices, allowing for high-dynamic range sound reproduction. Lastly, the MK5818S is also equipped with an adjustable slew-rate control, which provides a cleaner signal susceptible to fewer EMI noise issues than other clock generation solutions.

The MK5818S is based on a highly flexible architecture that allows users to change the output frequencies and select different clock sources for each of the output clocks. The programmable clock generator/frequency synthesizer chip is designed to provide the most optimized balance of low-jitter synchronization and frequency flexibility. The device is capable of operation with a wide selection of reference clocks, including crystals and logic clock signals, allowing for faster and easier switching.

The MK5818S is also designed with Advanced Clock Management (ACM) technology, which makes the chip more efficient, and features a very low noise floor and great jitter performance. ACM reduces power consumption and eliminates the need for extra external components, resulting in a much lower cost-of-ownership for customers. ACM also allows for higher-speed switching between multiple reference clocks, eliminating the need for waiting for the PLL to lock on the new clock.

The working principle of the MK5818S is quite simple. When a reference clock, such as a crystal, is connected to the device, it begins to produce three output clock signals which can be independently configured. The device can also support multiple external reference clock sources, allowing users to easily switch between different frequencies without requiring the PLL to relock. The chip also features an integrated crystal oscillator, providing an even more stable and reliable clock source. The main functions of the chip include frequency synthesis, phase compensation, clock multiplication, clock division, and adjustable slew-rate control. Additionally, the chip can be programmed with different frequencies, providing a highly flexible design solution.

The MK5818S is an ideal clock synthesizer/generator solution for low-jitter synchronization applications ranging from communications and multimedia systems to consumer electronics. With its wide selection of clock sources and reference frequencies, adjustable slew rate control, and advanced clock management functions, the chip offers excellent frequency flexibility and low-jitter performance. By providing a high degree of flexibility, the MK5818S allows customers to customize their screening process according to their own specific requirements, ensuring top-notch quality and meeting their tight budgets.

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