Description:The 845252I is a 3.3V/2.5V CML clock generator designed for Ethernet applications. The device synthesizes either a 50MHz, 62.5MHz, 100MHz, 125MHz, 156.25MHz, 250MHz or 312.5MHz clock signal with excellent phase jitter performance. The clock signal is distributed to two low-skew differential CML outputs. The device is suitable for driving the reference clocks of Ethernet PHYs. The device supports 3.3V and 2.5V voltage supply and is packaged in a small, lead-free (RoHS 6) 32-lead VFQFN package. The extended t
Renesas provides a recommended PCB layout guide in their application note (APN) documents, which can be found on their website. The guide includes thermal vias, copper pours, and other layout considerations to ensure optimal thermal performance.
Renesas recommends using an external overcurrent protection circuit, such as a fuse or a dedicated overcurrent protection IC, to prevent damage to the device. The datasheet provides guidelines for selecting the appropriate overcurrent protection component.
Renesas provides a recommended soldering profile in their packaging and assembly guidelines document, which can be found on their website. The profile includes temperature and time recommendations for reflow soldering and wave soldering.
Renesas provides a troubleshooting guide in their application note (APN) documents, which can be found on their website. The guide includes steps to identify and resolve common issues, as well as contact information for Renesas support teams.
Renesas provides information on environmental and regulatory compliance, such as RoHS, REACH, and WEEE, in their product documentation and website. Engineers should review this information to ensure compliance with relevant regulations and standards.
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845252AKILF Overview
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