CY7B994V-5AXCT

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The CY7B994V-5AXCT is a highly integrated clock generator suitable for a wide range of clock and timing applications. As part of the Cypress ClockGenerator family, it is designed to generate any frequency from 0 to 250 MHz in single-ended or differential output format without the need for an external oscillator or clock source. This makes it ideal for those applications using high performance, low power, and low cost clock solutions, such as system clocks and clock dividers for embedded systems, server applications, communication, imaging, and video applications.

The CY7B994V-5AXCT clock generator is capable of generating any output frequency from 0 to 250 MHz by simply programming one register value. It has a selectable output format of either single-ended or differential, suitable for various low jitter clock requirements. It is also capable of either 3.3V or 2.5V operation, with a supply current of 100mA.

The CY7B994V-5AXCT clock generator is based on a unique architecture called ClockDomain Sharing. This feature allows it to be used in high performance, low noise applications as it eliminates noise caused by clock-frequency mismatch and simplifies board designs. The high outputs also contribute to reduced system power consumption. Additionally, the design is immune to package stress, temperature drift, and supply variations, and can be programmed from 0 to 250 MHz without an external clock reference.

The CY7B994V-5AXCT clock generator utilizes a Phase Lock Loop (PLL) to generate its frequencies. It is designed to fine tune its output frequency without having to adjust the output frequency each time a new frequency is requested. The PLL technique helps the device to detect and track the incoming CW (or reference frequency) and move its output frequency by a certain amount. The PLL frequency acquisition time is fast enough to provide an output frequency with minimal jitter. Additionally, the PLL can also be programmed to allow it to keep track of the input reference frequency by a small amount, enabling the PLL to continue to detect and track the incoming clock.

The CY7B994V-5AXCT clock generator is programmable with either an 8-bit or 16-bit register. The 8-bit register provides simple programming, while the 16-bit register gives more flexibility. By programming the 8-bit mode, the user can select the frequency output up to 250 MHz with a resolution of 1 kHz. The 16-bit register allows for more resolution and a greater range of frequencies, making it ideal for applications requiring precision frequency output. The appropriate register can be programmed via I2C, SPI, or with an external print programmable read-only memory (EEPROM).

The CY7B994V-5AXCT clock generator is an important component in high-performance clocks and timing applications. Its architecture ensures low noise and high jitter performance, and its flexibility allows it to easily generate frequencies from 0 to 250 MHz with low power consumption. Additionally, its register programming features provide a wide range of frequencies, enabling it to be used for the most demanding clock applications.

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