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PCI Express1代，2代和3代、四输出时钟发生器Si52144
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The Si52144 is a spread-spectrum enabled PCIe clock generator that can source four PCIe clocks. The device has four hardware output enable pins for enabling the outputs， and one hardware pin to control spread spectrum on PCIe clock outputs. In addition to the hardware control pins， I2C programmability is also available to dynamically control skew， edge rate and amplitude on the true， compliment， or both differential signals on the PCIe clock outputs. This control feature enables optimal signal integrity as well as optimal EMI signature on the PCIe clock outputs. Refer to AN636 for signal integrity and configurability. Measuring PCIe clock jitter is quick and easy with the Silicon Labs PCIe Clock Jitter Tool. Download it for free at
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