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Clock/Timing - Programmable Timers and Oscillators

The CY2XF24FLXIT is an exceptionally useful programmable timer and oscillator device from Cypress Semiconductor Corporation. It is a four-stage frequency/phase-locked loop (PLL) device that is used in a variety of industrial and telecommunications applications, such as frequency synthesis, clock recovery and regeneration, jitter attenuation and frequency multiplication. The device is also suitable for use in medical, automotive, communication, computing and networking applications.

Application Field of CY2XF24FLXIT

The CY2XF24FLXIT is specifically designed with a wide range of applications in mind, including synchronizing multiple clock sources, converting and dividing frequencies, generating precise timing signals, creating periodic pulse streams and precision frequency-domain analysis. It can be used in a variety of settings, including communication systems, surveillance and security systems, measurement systems and multimedia systems. Furthermore, its low-jitter output lends itself well to synchronizing multiple clock sources and can be used for systems such as Ethernet, Cellular/PCS, W-CDMA and EDGE.

The CY2XF24FLXIT also supports multiple clock input formats, including from pulses such as TTL and CMOS, differential forms such as PECL and LVPECL, and various sinusoidal clocks such as low-voltage differential signals (LVDS). Moreover, its wide variety of phase detectors, high-frequency jitter attenuator, loop filter, phase-frequency detector and fractional-N frequency synthesizer make it the ideal choice for applications requiring a high degree of accuracy and high stability.

Working Principle of CY2XF24FLXIT

The CY2XF24FLXIT is a four-stage frequency/phase-locked loop (PLL) device, which means it is constructed of four distinct stages: a phase detector, a loop filter, a voltage-controlled oscillator and a frequency divider. The phase detector compares two signals - the reference signal and the feedback signal - and creates an error term which is then input into the loop filter. The loop filter filters and amplifies the error signal, and its output is used to control the oscillator. The oscillator then produces an output signal whose phase and frequency can be adjusted to match the reference signal. This output signal is then divided by the frequency divider to produce the feedback signal, which is then compared with the reference signal and the process repeats.

The loop filter of the CY2XF24FLXIT is designed to be a low-pass filter, which means it allows low-frequency components to pass through, while blocking higher frequency components. This means that it is able to filter out any high-frequency jitter errors and only allow low-frequency errors to affect the output. Furthermore, it utilizes a fractional-N frequency synthesizer, which enables the frequency output of the oscillator to be tuned in small increments. The result is a very accurate frequency and phase lock.

The CY2XF24FLXIT is able to run from a wide range of supply voltages, from 1.3V to 3.6V, and is able to handle frequencies ranging from 1kHz to 2GHz. It provides exceptional performance, with low-jitter output and high accuracy. This makes it suitable for use in a wide variety of applications, from communication systems to industrial control systems and more.

Conclusion

The CY2XF24FLXIT is an exceptionally versatile programmable timer and oscillator device from Cypress Semiconductor Corporation. It is a four-stage frequency/phase-locked loop (PLL) device that is used in a variety of essential industrial, telecommunications and multimedia applications. The device supports multiple clock formats and output formats, from TTL/CMOS to LVDS. It also features a low-jitter output and high accuracy, making it suitable for use in a variety of applications that require precision timing.

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