CY2544QI200

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CY2544QI200 application field and working principle

The CY2544QI200 is a versatile clock generator, phase-locked loop (PLL), and frequency synthesizer combination device, from Cypress Semiconductor. It provides superior frequency versatility and superb performance over a range of frequencies. This multi-function chip is designed to be used in clocks, telecommunications systems, test and measurement equipment, computers, personal digital assistants (PDAs) and embedded controllers.

The versatile features of the CY2544QI200 reduce the number of components required to design a high-precision system. It can be used in applications such as frequency synthesis, clock generation, clock synchronization, phase-shift keying, and pulse-width modulation, as well as other frequency-control applications. The CY2544QI200 provides clock stability and higher performance margins than conventional components.

The CY2544QI200 features a low-noise, low-jitter, low-spurious low-phase-noise VCO, a configurable divider chain, a jitter-attenuator block, and an oscillator-buffer block. Also included is a high-precision voltage-controlled oscillator (VCO) that has low-phase-noise characteristics and excellent leakage performance. This oscillator provides for a wide range of frequencies and superior frequency stability.

The CY2544QI200 also has a configurable divider chain, which provides for clock rates that are one-fourth of the reference frequency. The flexible divider chain allows clock frequencies as low as 1 kHz to be generated. In addition, the divider chain is adjustable and can be reconfigured to generate frequencies up to 250 MHz.

The CY2544QI200 also includes a jitter-attenuator block, which helps reduce jitter to further enhance the accuracy of the clock. It works by converting the PLL pre-divider ratio (which determines the clock rate) into a variable attenuation factor that reduces jitter without sacrificing performance. This feature also provides customers with an excellent jitter measurement tool.

The CY2544QI200 features an oscillator-buffer block that provides an adjustable, low impedance output. This output is designed to drive multiple loads, and it is capable of driving up to 1 mA. It is also designed to reduce jitter and spurious outputs.

The CY2544QI200 is a powerful and versatile device suitable for many applications. It is designed to provide superior frequency stability and performance, and its multi-function capabilities reduce the number of components necessary to design a high-precision system.

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