Description:The 9LPRS436C is a low power CK505-compatible clock targeted at Intel-based Netbooks and Nettops. This clock synthesizer provides a single chip solution for systems using the Intel NM10 chipset paired with the Intel N450/D410/D510 Atom® CPUs. The 9LPRS436C is driven with a 25MHz crystal.
Renesas provides a recommended PCB layout guide in their application notes (e.g., AN9834) and evaluation board documentation. It's essential to follow these guidelines to ensure optimal performance, especially for high-frequency signals.
The 9LPRS436CKILF has a thermal pad on the bottom, which should be connected to a solid ground plane on the PCB to dissipate heat. Additionally, consider using thermal vias, heat sinks, or thermal interface materials to further reduce thermal resistance.
The input clock signal should be a differential signal with a frequency range of 10 MHz to 40 MHz, and an amplitude of 0.5 V to 1.5 V. The clock signal should also meet the specified jitter and duty cycle requirements outlined in the datasheet.
To achieve low-power operation, configure the device to use the lowest possible frequency, disable unused features, and use the power-down mode when not in use. Additionally, consider using the device's built-in power-saving features, such as the 'Low Power Mode' and 'Sleep Mode'.
The recommended settings for the internal PLL depend on the specific application and frequency requirements. Renesas provides guidelines and examples in their application notes and evaluation board documentation. It's essential to follow these guidelines to ensure stable and accurate clock generation.
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9LPRS436CKILF Overview
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