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USB3300 数据表(PDF) 40 Page - Microchip Technology |
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USB3300 数据表(HTML) 40 Page - Microchip Technology |
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40 / 53 page ![]() USB3300 DS00001783B-page 40 2014-2015 Microchip Technology Inc. 7.1 Application Diagrams FIGURE 7-1: USB3300 APPLICATION DIAGRAM (PERIPHERAL) Link Controller USB3300 RBIAS DIR NXT STP CLKOUT DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA0 DATA1 VDD3.3 VDD3.3 VBUS DM DP ID RESET USB Receptacle DM DP DIR NXT STP CLKOUT DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA0 DATA1 7 8 32 GNDFLAG 2 3 VBUS 1 SHIELD GND 16 6 4 5 CBYP CVBUS 3.3V Supply RVBUSmay be installed in this configuration to assist in protecting the VBUS pin. 820 Ohms will protect against VBUS transients up to 8.5V. 10K Ohms will protect against transients up to 10V. VDDA1.8 29 CDC_BLOCK 12.0k 1% Steady state voltage at the VBUS pin must not be allowed to exceed VVBUS. RVBUS NC 17 18 19 20 21 22 23 24 13 11 12 14 9 COUT XI 28 CPEN 3 NC XO 27 1M Ω CLOAD CLOAD REG_EN VDD3.3 30 31 VDD1.8 26 12 VDD1.8 15 COUT VDD3.3 25 EXTVBUS 10 NC The capacitor CVBUS must be installed on this side of RVBUS. |
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