CDC2582PAH

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Clock Generator, PLL, and Frequency Synthesizers are key components for clocks and timing synchronization in various applications, including virtually all types of communication and data transfer. The CDC2582PAH is a popular model from Texas Instruments which offers a cost-effective solution for clock/timing related applications. It includes features such as spread spectrum and multi-channel clock synthesis, on-chip EMI control, and first-in-first-out (FIFO) synchronization. In this article, the application fields and working principle of the CDC2582PAH will be discussed.

The CDC2582PAH can be used in several applications that require a high-performance clock generator, such as digital video and telecommunication systems. It is also ideal for applications which require flexibility in the frequency and timing of their clock signals, such as automotive infotainment systems and data acquisition systems. With a small package size of only 8-pin SOIC, it is well-suited for applications which require extremely low power and high integration density.

The CDC2582PAH has a complex architecture with many features that make it valuable in the design of superior clocks and timing systems. It supports pin-selectable frequency synthesis from 0.5 to 44MHz, as well as a range of spread-spectrum options from 0 to -30dB. In addition, it can support up to three synchronized clock outputs, as well as a programmable spread spectrum divider. These features, combined with an integrated EMI control circuit, allow for the design of very low-noise clocks with improved jitter performance.

The CDC2582PAH uses a differential input and a phase-locked loop (PLL) architecture for frequency synthesis. The differential inputs allow for synchronizing to external signals and clock sources with minimal jitter. The built-in PLL also allows for selecting two different types of spread spectrum clocks: edge-spread and frequency-hopping. The spread spectrum clocks offer significant benefits in terms of noise reduction, which is especially important in communication systems.

The CDC2582PAH also has integrated first-in-first-out (FIFO) registers, which allows for synchronizing multiple clock outputs to the same reference clock. This makes it easier to synchronize multiple clocks with little jitter, which can be essential for communication systems or systems with multiple components operating on different frequencies.

The CDC2582PAH is a highly efficient, cost-effective solution for clock/timing related applications. With its integrated features and low power consumption, it is ideal for a wide range of analog and digital systems. Its programmable clock frequency and synchronization, as well as its built-in EMI control, make it an excellent choice for communications and data acquisition applications.

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