Description:The 9FGL0641/51 devices are 6-output 3.3V PCIe Gen1–5 clock generators. Each output has a dedicated OE# pin supporting PCIe CLKREQ# functionality. Two different spread spectrum levels, in addition to spread off, are supported. The 9FGL0641/51 supports PCIe Gen1–5 Common Clocked architectures (CC), PCIe Separate Reference no-Spread (SRNS) and Separate Reference Independent Spread (SRIS) clocking architectures. For information regarding evaluation boards and material, please contact your local sales represent
Renesas provides a recommended PCB layout guide in their application note (R01AN4331EF0100) which includes thermal design considerations, such as thermal vias, copper pours, and component placement, to ensure optimal thermal performance.
Renesas recommends a specific power sequencing scheme in their application note (R01AN4331EF0100) to ensure proper device operation. The sequence involves powering up the VCC, then the VDD, and finally the AVCC, with a specific delay between each power-up event.
Renesas provides guidelines for EMI and noise reduction in their application note (R01AN4331EF0100), including the use of decoupling capacitors, ferrite beads, and shielding, as well as layout considerations such as separating analog and digital circuits.
Renesas recommends several techniques for low power consumption, including using the device's power-down modes, reducing clock frequencies, and optimizing the system's power supply. Additionally, the device's power consumption can be further reduced by using the built-in low-power modes and dynamic voltage and frequency scaling.
The 9FGL0651CKILF requires a clock input with a specific frequency and duty cycle. Renesas recommends using a clock source with a frequency range of 10-40 MHz and a duty cycle of 40-60%. Additionally, the clock input should be decoupled with a capacitor to ensure noise reduction.
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9FGL0651CKILF Overview
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