VFJA1491C-25.000M-25.000M Integrated Circuits (ICs)

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The VFJA1491C-25.000M-25.000M is a clock generator, phase locked loop (PLL), frequency synthesizer and programmable spread spectrum clocking solution enabling serial data transfer rates up to 25.000MHz. It features a voltage controlled crystal oscillator (VCXO), digitally controlled phase-locked loop (PLL) synthesizer, programmable reference-clock jitter attenaitor, and on-chip clock dividers allowing users to customize the product to meet their application requirements.

This VFJA1491C-25.000M-25.000M field programmable clock generator operates through a wide input frequency range from 6MHz to 50MHz for power, enables users to program the clock output frequency and is available in two industry standard packages. It is used in a variety of applications including embedded systems, telecommunication systems, digital video equipment, system management as well as digital audio systems.

The core of the VFJA1491C-25.000M-25.000M is a digital PLL, which has the capability to generate precisely tuned and highly accurate clock signals with very low jitter. The device also provides a wide range of programmable frequency settings, with each output capable of independent selection between 0 to 25.000MHz and up to 512 programmable settings. The programmable spread spectrum clocking feature allows users to reduce EMI by spreading out the clock signal.

The VFJA1491C-25.000M-25.000M has the ability to achieve high accuracy by controlling the loop bandwidth of the PLL and to eliminate spurious emissions with its finely tuned loop filter. Moreover, the device offers a wide range of features, including low power consumption, integrated reference clock output adjustment and high accuracy reference clock performance.

The VFJA1491C-25.000M-25.000M works on a system that is based on the application-specific noise immunity waveform with the help of two internal digital-to-analog converters (DACs). These two DACs send analog signals to the VCXO to determine the frequency of the generated clock signal. The user can program the output frequency of the device by adjusting these DAC signals. Additionally, the device offers an adjustable voltage control range of +5V to +5.5V.

The VFJA1491C-25.000M-25.000M is a highly versatile, programmable, and highly accurate clock generator. It is a key component of any application requiring serial data transfer of up to 25.000MHz and provides a wide range of features for frequency tuning, low power consumption, integrated reference clock output adjustment and high accuracy reference clock performance. The device utilizes a VCXO with two DACs for frequency control, a digitally controlled PLL synthesizer, and programmable spread spectrum clocking to reduce EMI. This device is perfect for applications such as embedded systems, telecommunication systems and digital audio systems.

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