Description:The 853S011CI is a low skew, high performance 1-to-2 Differential-to-2.5V/3.3V LVPECL/ECL Fanout Buffer. The 853S011CI is characterized to operate from either a 2.5V or a 3.3V power supply. Guaranteed output and part-to-part skew characteristics make the 853S011CI ideal for those clock distribution applications demanding well defined performance and repeatability.
Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) for thermal management. It suggests using a 4-layer PCB with a thermal vias array under the package, and a solid ground plane on the bottom 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.
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 requirements and PCB layout.
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 input capacitor close to the device. Additionally, consider using EMI filters or shielding to reduce radiation.
Renesas recommends using a pi-filter (L-C-R) or a simple RC filter at the input (VIN) to reduce noise and ripple. For the output (VOUT), use a simple RC filter or a pi-filter to reduce output noise and improve load transient response.
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853S011CGILF Overview
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