ZL40253LDF1 Integrated Circuits (ICs)

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The ZL40253LDF1 is a low-power clock distribution device designed to expand the capabilities of system clock trees. It is designed to replace clock signal line drivers and re-timers in advanced processor systems and other clock distribution applications. The device is designed to transmit a clock signal from a single source to multiple destinations. It provides isolation between multiple clock sources, allowing them to be connected without affecting the yield or accuracy of the system clock signal.

The ZL40253LDF1 is a low-power, low-jitter, flexible clock buffer. The device is designed to support up to 8 clock outputs that can be independently configured as input buffers, fan-out buffers, and fan-in buffers to expand clock signal networks. It also supports a slew rate selectable buffer mode that enables the user to optimize output signal performance on a per-output basis. In addition, the low propagation delays enable a wide range of transmission speeds to be supported.

The working principle of the device is based on a schematic diagram consisting of a number of active and non-active elements. A simplified block diagram is shown below:

At the heart of the ZL40253LDF1 is the PLL. This supplies the oscillator that drives the buffering logic through a number of high-performance clock buffers. The difference between inputs and outputs can be selectable delay elements, or these can be bypassed for a faster response time. Noise suppression is another important parameter, in this case the device uses a special noise reduction technique.

To further improve performance the device also employs power gating and clock muting to reduce power consumption. Unused outputs can be completely disabled, which helps keep the clock tree as low-power as possible. The device also features a programmable skew compensation mechanism to ensure precise and accurate timing performance. This allows the output to track even heavily loaded clock trees to ensure reliable communication between multiple devices.

The ZL40253LDF1 is an ideal clock distribution device for advanced applications like multi-core processors, where the clock tree must be able to switch between different clock sources quickly, and keep the skew between different clock sources in check. It can also be used in applications that require very low power consumption and high performance, such as FPGAs. By combining its low-power consumption, flexibility, and output buffering features, the ZL40253LDF1 can help improve system clock performance greatly.

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