CY22381SXI-194T

Series:	*
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	CY22381

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CY22381SXI-194T is a high-performance clock generator and PLL frequency synthesizer for embedded systems applications. It provides a comprehensive feature set that enables the most stringent timing requirements to be met.Application FieldThe CY22381SXI-194T is ideally suited for applications that need to control and manage multiple frequency domains or clocks with low jitter and timing control over a wide range of temperature and voltage. In this regard, the CY22381SXI-194T is well suited for a variety of embedded systems, such as system-on-chip (SoC) designs and embedded devices, which often require multiple clocking domains.The CY22381SXI-194T enables low jitter clock generation and conditioning for a wide range of applications, including telecommunications applications such as digital signal processors, high-performance embedded controllers, and memories. Its outstanding jitter performance makes it well suited for applications implementing low jitter clocks such as front-end receivers, FPGAs, and processors.Working PrincipleThe CY22381SXI-194T leverages a core architecture based on a digital phase locked loop (DPLL), using a combination of low jitter clock and configuration synthesis, frequency dividers and selectable feedback loops to provide robust, low jitter and timing control over a wide range of temperatures and voltages.The architecture of the CY22381SXI-194T features a two-stage DPLL consisting of a Voltage Controlled Oscillator (VCO) and a Phase Detector (PD). The CY22381SXI-194T provides a versatile PLL frequency synthesizer, which can be programmed to generate frequency signals from multiple references, both from internal and external sources.The core architecture includes additional configurable frequency dividers and an output filter. The dividers can be used to divide a frequency output between multiple pins, while the output filter is used to filter out unwanted frequencies and reduce jitter on the output signal.The CY22381SXI-194T can be programmed to generate a clock output at any frequency between 6 and 800MHz, with a resolution as low as 0.1Hz, providing an extremely wide range of potential frequencies. The CY22381SXI-194 also provides an adjustable frequency holdover mode, allowing the user to adjust the clock oscillator\'s frequency if the input reference signal is lost or changes.The CY22381SXI-194T also offers a number of features that help improve clock signal accuracy and stability. These features include on-chip oscillator trim and latched clock frequency adjustment, which can be used to improve the accuracy of the generated clock signal and ensure better frequency stability.Overall, the CY22381SXI-194T is an ideal solution for demanding embedded applications requiring high performance, low jitter clock generation, and excellent frequency stability. Its versatile PLL frequency synthesizer configuration, adjustable PLL bandwidths, and adjustable frequency holds can be used to customize the output clock waveform for a wide range of applications.

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