CY2544FIT

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CY2544FIT is an integrated high performance frequency synthesizer designed to generate up to four frequencies with differential output signals. The device provides output signal edges that meet a RS-485 standard, with outputs of either AC-coupled balanced signal or single ended signal with 1.8V DC offset. The output signal is crystal-align, which eliminates the need for external clocks and thus reduce the complexity of signal routing.

The CY2544FIT is a type of frequency synthesizer and functions as a clock generator. It features an integrated PLL (Phase Lock Loop) with active loop filter, allowing it to accurately generate up to four frequencies using fewer components than a standard phase lock loop, while providing excellent noise and phase noise performance. The integrated PLL enables the device to lock quickly to an external reference signal, eliminating the need for an external crystal oscillator and providing a cost effective solution.

The CY2544FIT features an integrated crystal oscillator and an option to upconvert an external reference clock frequency. It can be programmed for different operating modes, such as integer-N or fractional frequency synthesis, and can be programmed for the exact frequency output required by the user. Additionally, the output frequency divider can be adjusted to provide different RF output frequencies in order to accommodate customer specified frequencies.

The integrated fractional frequency synthesizer (FFS) allows the device to generate extremely accurate frequencies, even when the frequency of the reference clock is changed. This device maintains low phase noise and spurious free dynamic range (SFDR), and is capable of generating frequency hops over a wide range of frequencies in a single PLL circuit.

CY2544FIT can be used in various fields, including communications, automotive, industrial, consumer electronics and medical applications. For example, it can be used in the automotive sector to generate the different frequencies required for global positioning system (GPS) navigation systems. It can also be used in the consumer electronics industry to generate the frequencies required for high definition TVs and digital audio equipment. Furthermore, it can be used in the industrial sector to generate the frequencies required for controlling various industrial processes. Lastly, it can be used in the medical sector to generate the frequencies required for medical imaging equipment.

In conclusion, the CY2544FIT is an integrated high performance frequency synthesizer designed to generate a maximum of four frequencies with differential output signals. It features an integrated PLL architecture with active loop filter, providing noise and phase noise performance. It is suitable for various fields, including communications, automotive, industrial, consumer electronics and medical applications. The FFS allows it to generate very accurate frequencies even when the frequency of the reference clock is changed, thus providing a cost effective solution.

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