AN1237: Si5332 Design Guidelines for Minimizing EMI
●Description
■The Skyworks Si5332 any-frequency, low-jitter, family of clock generators has broad appeal in many different products and markets, including data center, communications,broadcast video, and automotive. Available in both standard industrial (–40 °C to +85C) as well as automotive (–40 °C to +105 °C) grade options, the Si5332 can consolidate entire clock trees into a single device, saving board space, BOM cost, and minimizing quartz elements to increase system reliability.
■System designers are often challenged with mitigating radiated and conducted EMI in high-speed designs in order to meet recognized EMI/EMC standards, such as CISPR 25 and FCC Part15. This application note introduces features within the Si5332 as well as novel PCB design techniques that can be used to minimize EMI.
●KEY FEATURES
■Clock termination guidelines for best signal performance and minimal EMI.
■Circuit design and PCB layout techniques for minimization of EMI.
■EMI test data using suggested guidelines showing real EMI improvements.
●Introduction
■Designing products with EMI compliance in mind from the start is a much more efficient strategy than attempting to remediate compliance issues after a failing design has been built. This document provides design guidelines to help board-level circuit and PCB designers create EMI-optimized Si5332-based designs from the start, thereby increasing the likelihood of quickly securing required end-product EMI compliance certifications.
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Si5332 、 Si5332-QFN40-AM1-Auto-EVB 、 Si5332-AM2 、 Si5332-QFN40-AM2-AUTO-EVB |
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[ data center ][ communications ][ broadcast video ][ automotive ] |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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December 17, 2021 |
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Rev. 0.2 |
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AN1237 |
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2.8 MB |
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