Description:The 9DB801C is a DB800 Version 2.0 Yellow Cover part with PCI Express® support. It can be used in PC or embedded systems to provide outputs that have low cycle-to-cycle jitter (50 ps), low output-to-output skew (100 ps), and are PCI Express® gen 1 compliant. The 9DB801C supports a 1 to 8 output configuration, taking a spread or non spread differential HCSL input from a CK410(B) main clock such as 954101 and 932S401, or any other differential HCSL pair. 9DB801C can generate HCSL or LVDS outputs from 50 to 20
Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) for thermal optimization. It suggests using a 4-layer PCB with a thermal vias array under the package, and a solid ground plane on the top layer to reduce thermal resistance.
To ensure reliable operation in high-temperature environments, it's essential to follow Renesas' recommended thermal design guidelines, including using a heat sink, thermal interface material, and ensuring good airflow. Additionally, consider using a thermistor or thermal sensor to monitor the device temperature and implement thermal throttling or shutdown if necessary.
Renesas recommends using a low-ESR ceramic capacitor (X5R or X7R dielectric) for CIN, with a value between 4.7uF to 10uF. For COUT, use a low-ESR ceramic or polymer capacitor with a value between 10uF to 22uF. The capacitor selection should be based on the specific application's requirements and operating conditions.
To minimize EMI, follow Renesas' recommended layout guidelines, including keeping the input and output traces short and away from each other, using a solid ground plane, and placing the device close to the power source. Additionally, consider using EMI filters or shielding to further reduce EMI emissions.
Renesas recommends using a pi-filter (L-C-R) or an LC filter on the input side to reduce noise and ripple. On the output side, use a simple RC filter or an LC filter to reduce output noise and ripple. The filter component values should be selected based on the specific application's requirements and operating conditions.
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9DB801CGLFT Overview
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