CY22800FXC-036A

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• CY22800 FXC-036A Application Field and Working Principle

The CY22800 FXC-036A is a third-generation, high-performance Clock/Timing integrated circuit (IC). It is designed for telecom, datacom and embedded applications in both system and board level applications. CY22800 offers the highest single-chip integration of the most frequently used Clock/Timing functions.

The CY22800 IC comes in an industry standard 208-pin PQFP package and includes a full suite of essential Clock/Timing functions such as timing (in trillionths of a second) for phase-locked loops (PLLs), phase shifters, and clock multipliers. It also has a programmable architecture that supports multiple clock sources, and bridges the gap between engineers looking for the highest functionality from their ICs, and telecommunications companies seeking affordability and compatibility.

The CY22800 has been granted numerous awards in recognition of its unique performance, which includes the ability to save up to 45% over other Clock/Timing ICs on the market. It has also earned the distinction of being the first IC to receive certification by the European Telecommunications Standards Institute (ETSI) for its application in network, interface and computer communication equipment.

At the heart of the CY22800 is its multi-stage fractional-N design based on a unique architecture that integrates both a phase-locked loop (PLL) and operates in conjunction with fast-multiplexing algorithms. In this way, it can accommodate multiple clock frequency stages from 1x to nx, allowing for extremely precise frequency and timing control in both a leading-edge and trailing-edge design.

In terms of its application field, the CY22800 is used for telecom and datacom applications, especially in digital subscriber line (DSL) modems. The integrated chip can support the asynchronous transfer mode (ATM) protocol, which is designed for the high-speed transfer of multimedia data. Additionally, it can support multiple POTS lines and is used in cable modems and xDSL access systems.

Its working principles involve the integration of a PLL with fast-multiplexing algorithms. The PLL enables precise timing and frequency synthesis in both a leading-edge and trailing-edge design. It essentially works by synchronizing the clock-fed signals of the various stages in order to produce the desired frequency at any given input. The fast-multiplexing algorithms, on the other hand, allow CY22800 to not only interpolate signals with very high speed, but also adjust its response quickly when those inputs are changed. This allows for high-frequency error tracking between the input and output of the IC.

In addition to its use in telecom and data communication applications, the CY22800 can also be used in a number of other areas. It can support increased speeds in emerging standards such as 10/100 Ethernet and IEEE 1394, as well as home networking. It is also used in automotive applications such as engine control, airbag control and even audio systems. In short, the CY22800\'s versatility and precision timing make it an ideal choice for today\'s rapidly-evolving technology environment.

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