CY26121KZC-21

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CY26121KZC-21 is a clock generator, PLL, frequency synthesizer component manufactured and marketed by Cypress Semiconductor Corporation. Its applications include synchronizing different clock domains in system-level clock trees, generating variable clock frequencies for a range of modular system architectures, and providing general purpose clock jitter and phase-noise performance within the RF and infrared markets. The component is designed to meet the stringent data rate, clock rate and jitter requirements of today’s high-performance systems.

The device is an integrated semiconductor block consisting of a programmable 80 MHz crystal-controlled oscillator, a low-noise PLL (phase-locked loop), and a 6-output clock driver. The PLL is a type of electronic circuit that is used to generate a signal with a frequency that is a multiple of an input signal. The PLL’s output is then synchronized with an external reference clock and generated frequencies can be changed by adjusting an internal control voltage. Upon power-up, the device\'s PLL automatically locks onto the crystal-controlled clock, and the output frequency is set to preconfigured frequency settings.

The PLL also supports a wide array of modulation modes, from slow frequency ramping to self-modulating. In addition, the device supports spread spectrum amplification, allowing for low clock jitter and phase noise performance in RF systems. The device\'s outputs are designed to be programmable for output type, frequency and duty cycle. Lastly, the device integrates a low-jitter on-die crystal oscillator, allowing for improved clock performance.

The CY26121KZC-21 is a highly efficient, cost-effective device capable of generating adjustable clock frequencies with low clock jitter and phase noise performance. The device\'s two-stage PLL enables generation of frequency ratios with high accuracy, while the integrated crystal oscillator ensures a low-jitter output. The 6-outputs can be programmed to provide different clock frequencies with extremely low phase noise, making it suitable for high-performance systems. The device is suitable for clock trees in any type of modular system, as well as RF and infrared systems. The integrated PLL provides a wide array of modulation modes, while the spread spectrum amplification allows for low clock jitter and phase noise performance.

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