CY7B991V-7JCT

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The CY7B991V-7JCT is a high-performance Clock buffer supporting the differential clock input, with low-skew and low-jitter built-in, performing the fanout for system clock distribution. It integrates the industry-leading state-of-the-art digital logic design to offer the flexibility of output drive strength, providing the same standard output driver to ensure long-term reliability. This product features a high level of performance, with a wide variety of features to satisfy today’s demanding high-speed, high-quality clock requirements.

The CY7B991V-7JCT is targeted at high-speed applications of up to 500 MHz, particularly high-end network processing, network storage, industrial automation and other embedded systems. Current customers especially use CY7B991V-7JCT in networking and communication applications, such as servers and routers, providing a very high level of performance and robustness. Apart from that, it is also used for a wide variety of other applications, including but not limited to, low power and high frequency mobile applications, automotive and aerospace applications, hard drives, and high speed audio and video applications.

The CY7B991V-7JCT supports a differential clock input from a standard SSTL_2 clock, which provides high-level performance when compared to the traditional single-ended clock inputs. The differential clock input reduces the jitter, system noise, and improves the accuracy of clock output, enabling the high performance needed in today’s systems. The device also features selectable output drive strengths, with two high-skew input pairs to minimize front-end delays, minimize output-to-output skew and minimize power dissipation.

The CY7B991V-7JCT features an active power-down mode and several other features to reduce the system power. The low power active mode allows the device to enter the power-down mode, reducing the power consumption of the device down to 0.15 mW. This is extremely useful for power sensitive applications, as the device can be selectively turned off without disrupting the functionality. Additionally, the device consumes minimal power when in system reset mode, as it powers down until the reset signals are released. This can greatly reduce the cost associated with active cooling, ensuring the device is always running at optimal temperatures.

The working principle of CY7B991V-7JCT is quite simple. The differential clock input is first divided into two inputs. Each of these inputs is routed to a separate output. The signals from the differential clock inputs are then combined using a built-in digital differential signaling technique. This technique helps reduce jitter, system noise and improve accuracy. After being combined, the input signals are routed to the output buffers, where the output drive strengths are selected. The output signals are then distributed to the various outputs. The device also features a selectable disable mode, allowing the device to be configured to be disabled or enabled as needed.

In summary, the CY7B991V-7JCT is a high-performance clock buffer that can be used in a variety of applications, providing high-level performance and robustness, combined with low power consumption. It is an important component for a variety of high-speed and high-quality clock requirements. Its differential clock input reduces jitter, system noise, and improves accuracy, allowing it to reach maximum performance. Additionally, its low power active mode and reset mode help to minimize the associated cost and thermal issues, making it an ideal solution for power-sensitive applications.

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