Description:The 841N4830 is a 3 HCSL, 1 LVPECL and 2 LVCMOS output Synthesizer optimized to generate PCI Express reference clock frequencies. The device uses Renesas' fourth generation FemtoClock™ NG technology for synthesis of high clock frequency at very low phase noise. It provides low power consumption with good power supply noise rejection. Using a 25MHz, 12pF parallel resonant crystal, the following frequencies can be generated: 100MHz, 50MHz and 25MHz. Maximum rms phase jitter of 0.27ps, easily meets PCI Express
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 current sense resistor and a comparator, to detect overcurrent conditions. The datasheet provides guidance on the maximum current rating and thermal limits, but the implementation details are left to the designer.
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 recommends following the guidelines in their EMC application note, which provides information on PCB layout, component selection, and shielding to minimize electromagnetic interference (EMI) and ensure EMC compliance.
Renesas recommends following the guidelines in their packaging and assembly guidelines document, which provides information on storage temperature, humidity, and handling procedures to prevent damage and ensure reliability.
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841N4830BKILF Overview
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