Description:The 932SQ420 is an Intel CK420BQ main clock synthesizer for Romley-generation and newer Intel-based server platforms. The 932SQ420 is driven with a 25 MHz crystal for maximum performance. It generates CPU outputs of 100 or 133.33 MHz.
Renesas provides a recommended PCB layout guide in their application note (APL-AN-1201) which includes thermal design considerations, such as thermal vias, copper pours, and component placement, to ensure optimal thermal performance.
Renesas recommends using an external overcurrent protection circuit, such as a current sense resistor and a comparator, to detect overcurrent conditions. The datasheet provides guidelines for selecting the current sense resistor value and setting the overcurrent threshold.
Renesas recommends using a low-ESR ceramic capacitor with a value between 4.7uF to 10uF, depending on the input voltage and output current requirements. The datasheet provides more detailed guidance on input capacitor selection.
Renesas provides EMC design guidelines in their application note (APL-AN-1202) which includes recommendations for PCB layout, component selection, and shielding to ensure EMC compliance. Additionally, Renesas offers an EMC-compliant evaluation board for the 932SQ420DKLF.
The 932SQ420DKLF has an operating temperature range of -40°C to +125°C, but the maximum junction temperature (TJ) should not exceed 150°C. The datasheet provides more detailed information on thermal characteristics and derating curves.
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932SQ420DKLF Overview
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