Description:The MK5811C device generates a low EMI output clock from a clock or crystal input. The device is designed to dither a high emissions clock to lower EMI in consumer applications. Using IDT's proprietary mix of analog and digital Phase Locked Loop (PLL) technology, the device spreads the frequency spectrum of the output and reduces the frequency amplitude peaks by several dB. The MK5811C offers both centered and down spread from a high-speed clock input. For different multiplier configurations, use the MK581
Renesas provides a recommended PCB layout guide in their application note (APN) documents, which includes thermal vias, thermal pads, and heat sink recommendations to ensure optimal thermal performance.
The MK5811CMLF has a built-in overcurrent protection feature, but it's recommended to add an external overcurrent protection circuit to ensure reliable operation. This can be achieved using a sense resistor and a comparator or an overcurrent protection IC.
Although the datasheet doesn't specify a maximum voltage for the EN pin, it's recommended to keep it within the VCC voltage range (typically 3.3V or 5V) to ensure reliable operation and prevent damage to the device.
The MK5811CMLF is rated for operation up to 125°C, but it's essential to consider the device's power dissipation, thermal design, and reliability when operating in high-temperature environments. Consult Renesas' thermal design guidelines and reliability reports for more information.
To ensure EMC, follow Renesas' guidelines for PCB layout, component selection, and shielding. Additionally, consider implementing EMI filters, and ensure that the device is properly decoupled and bypassed to minimize electromagnetic interference.
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MK5811CMLF Overview
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