Description:Provides high-performance I/O expansion and switching functions between a PCIe upstream port and eleven downstream ports or peer-to-peer switching between downstream ports.
Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) which includes thermal design considerations, such as thermal vias, copper pours, and component placement.
Renesas recommends following the thermal design guidelines, using a heat sink if necessary, and ensuring proper airflow around the device. Additionally, consider using thermal interface materials and following the recommended operating temperature range.
Renesas recommends using a low-ESR capacitor (e.g., ceramic or film capacitor) for CIN, with a value between 1-10uF. For COUT, a low-ESR capacitor with a value between 10-100uF is recommended. The specific values depend on the application's requirements and should be determined through simulation and testing.
Renesas recommends following the guidelines in their application note (APL-AN-1201) for EMI reduction, including using a solid ground plane, minimizing loop areas, and placing components to reduce radiation. Additionally, consider using EMI filters and shielding if necessary.
Renesas recommends using a pi-filter (L-C-L) or a common-mode choke for VIN filtering to reduce noise and ripple. For VOUT filtering, a simple RC filter or a more complex filter (e.g., LC filter) can be used, depending on the application's requirements.
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89H48T12G2ZCBLG Overview
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