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WM8523 데이터시트(PDF) 46 Page - Wolfson Microelectronics plc |
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WM8523 데이터시트(HTML) 46 Page - Wolfson Microelectronics plc |
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46 / 51 page ![]() WM8523 Production Data w PD, Rev 4.1, August 2011 46 RECOMMENDED PCB LAYOUT – 24-LEAD QFN Figure 40 Recommended PCB Layout Notes: 1. C5 should be placed as close to WM8523 as possible, with minimal track lengths to reduce inductance and maximise performance of the charge pump. Vias should be avoided in the tracking to C5. 2. C1 is then next most important and should also be placed as close as possible to the WM8523. Again, minimise track lengths and avoid vias to reduce parasitic inductance. 3. C2 and C4 are then next most important, and lastly C3. 4. The WM8523 evaluation board, details available at www.wolfsonmicro.com, shows an example of good component placement and layout to maximise performance with a minimal BOM. |
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