поискавой системы для электроныых деталей |
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CC3230S датащи(PDF) 87 Page - Texas Instruments |
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CC3230S датащи(HTML) 87 Page - Texas Instruments |
87 / 104 page 10.2.5 RF Interface Guidelines The following guidelines are for the RF interface. Follow guidelines specified in the vendor-specific antenna design guides (including placement of the antenna). Also see CC3120 and CC3220 SimpleLink™ Wi-Fi® and IoT Solution Layout Guidelines for general antenna guidelines. • Ensure that the antenna is matched for 50-Ω. A π-matching network is recommended. Ensure that the π pad is available for tuning the matching network after PCB manufacture. • Ensure that the area underneath the BPFs pads have a solid plane on layer 2 and that the minimum filter requirements are met. • Verify that the Wi-Fi RF trace is a 50-Ω, impedance-controlled trace with a reference to solid ground. • The RF trace bends must be made with gradual curves. Avoid 90-degree bends. • The RF traces must not have sharp corners. • There must be no traces or ground under the antenna section. • The RF traces must have via stitching on the ground plane beside the RF trace on both sides. • For optimal antenna performance, ensure adequate ground plane around the antenna on all layers. • Ensure RF connectors for conducted testing are isolated from the top layer ground using vias. • Maintain a controlled pad to trace shapes using filleted edges if necessary to avoid mismatch. www.ti.com CC3230S, CC3230SF SWRS226 – FEBRUARY 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 87 Product Folder Links: CC3230S CC3230SF |
Аналогичный номер детали - CC3230S |
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Аналогичное описание - CC3230S |
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