CY28401OC

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The CY28401OC is a clock frequency synthesizer designed for use with SDRAM memory applications. It is a low power, low cost, and small form factor frequency synthesizer that allows high frequency synthesizing which is particularly suitable for SDRAM applications with high frequencies. The CY28401OC allows tuning of the synthesized frequency in the range of 40 MHz to 500 MHz with a frequency fine-tune range of 10MHz to 100MHz. It also allows tri-state control of the output clock and can be used as an optional external reference clock.The CY28401OC also includes a number of circuit design features that help in reducing size and power consumption. These include on-chip voltage regulators, programmable resistors, on-chip clock filters and a low drop out (LDO) regulator for low-power operation. The on-chip voltage regulators help in maintaining system clock symmetry and reduce power consumption when not in use. The programmable resistors enable the user to customize the device to their specific needs.In terms of use, the CY28401OC is typically used in applications like clocks for system components, including processors, memories, memories, that use standard 2.5V or 3.3V or 6V supply. This device can also be used in smaller form-factor products, such as MP3 players and portable media players, or embedded products that are power constrained. The working principle of the CY28401OC is simple and revolves around the oscillator and phase-locked loop (PLL) architectures. The device is configured with an external crystal oscillator and PLL to generate the desired frequency, at the desired frequency range. When a reference clock is provided, the PLL will lock onto it, and the output of the synthesizer will be tuned to that reference frequency.The CY28401OC also includes an on-board programmable resistors, which can be used to quickly adjust the output frequency as needed. The output frequency is also adjustable from 10MHz to 100MHz, allowing for further fine tuning. In addition, the device also has a tri-state control, whereby the output can be disabled, allowing for frequency change without a disruption to system performance.In summary, the CY28401OC is an effective application-specific frequency synthesizer that is suitable for use in high frequency SDRAM applications. It offers a low power, low cost, and small form factor design, along with on-chip voltage regulator and programmable resistors. Furthermore, the CY28401OC includes a PLL-based architecture and on-board adjustable frequency. It is an ideal choice for when you require an effective and stable frequency synthesis solution.

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