CY7B991-2JC

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CY7B991-2JC Application Field and Working Principle

CY7B991-2JC is a high performance clock distribution buffer designed by Cypress MicroSystems. It is responsible for distributing clock signals to provide high signal integrity and signal propagation speeds, while ensuring low jitter in the output clock signal. The CY7B991-2JC is best suited for applications that require low output jitter and precise clock synchronization.

This CY7B991-2JC clock distribution buffer is comprised of two buffer options, one for a four output buffer and one for an eight output buffer. The CY7B991-2JC four output buffer is comprised of two differential outputs, one differential input and one output reference clock. The CY7B991-2JC eight output buffer is composed of one differential input and one differential input reference clock.

The differential outputs and the output reference clocks of both buffers can be custom configured using the Cypress Configuration Editor or the optional external control pins. This allows the CY7B991-2JC to support both AC-coupled and DC-coupled connections. The CY7B991-2JC also features an integrated PLL, which helps to reduce jitter in the output clock signal.

The CY7B991-2JC leverages two buffers, one for four outputs, and one for eight outputs, that are configured by Cypress\'s "Configuration Editor" for application specific optimisations. These buffers guarantee superior signal integrity and performance. In addition, in order to diagnose the application\'s environment, a built-in digital pattern generator and oscilloscope are included. As a result, the CY7B991-2JC is suitable for many clock and timing distribution applications, such as cellular base stations, network timing and other embedded systems.

The CY7B991-2JC is built on Cypress\'s proprietary “L-PLL” technology, which helps reduce jitter in the output clock signal. The L-PLL technology combines a voltage-controlled oscillator (VCO) with a low-noise phase-locked loop (PLL). By using a combination of these two components, the solution is able to create extremely low jitter clock outputs which in turn, improves overall system performance. In addition, the L-PLL technology also helps increase system dynamic accuracy and provides a wide frequency range.

The CY7B991-2JC is a high performance clock distribution buffer for low output jitter and precise clock synchronization applications. It consists of two buffers, one for a four output buffer and one for an eight output buffer, and is easy to configure and use with Cypress’s “Configuration Editor”. The integrated PLL, low jitter outputs, and dynamic accuracy features make the CY7B991-2JC ideal for low latency and high accuracy applications.

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