Description:The 9FGL0841/51 devices are 8-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 9FGL0841/51 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
A 4-layer PCB with a solid ground plane and thermal vias is recommended for optimal thermal performance. The device should be placed near a thermal pad or heat sink to dissipate heat efficiently.
To ensure reliable operation across the entire operating temperature range, it is essential to follow the recommended operating conditions, including voltage, current, and power dissipation. Additionally, the device should be properly decoupled, and the PCB should be designed to minimize thermal gradients.
The critical timing parameters for the 9FGL0841CKILF include clock frequency, clock-to-output delay, and output hold time. To ensure these parameters are met, it is essential to follow the recommended clocking scheme, use a high-quality clock source, and ensure that the output loads are properly terminated.
The 9FGL0841CKILF has specific power sequencing requirements to ensure reliable operation. During power-up, the core voltage (VCC) should be applied before the input voltage (VIN). During power-down, the input voltage should be removed before the core voltage. The device also has power-down modes that can be controlled through the power-down pins.
To minimize EMI and RFI, it is essential to follow proper PCB layout and design guidelines, including using a solid ground plane, minimizing signal loop areas, and using shielding and filtering as needed. Additionally, the device should be placed in a shielded enclosure, and the I/O signals should be properly terminated.
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9FGL0841CKILF Overview
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