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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LAN7430 датащи(PDF) 28 Page - Microchip Technology |
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LAN7430 датащи(HTML) 28 Page - Microchip Technology |
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28 / 77 page  LAN7430/LAN7431 DS00002631D-page 28 2018-2019 Microchip Technology Inc. 4.2 LAN7431 Power Connectivity The following diagram illustrates the power connectivity for LAN7431 with on-chip regulators enabled and disabled. FIGURE 4-3: LAN7431 POWER CONNECTIVITY ON-CHIP REGULATORS ENABLED +1.8 V to +3.3 V VDD12CORE Core Logic & Ethernet PHY digital Ethernet PHY Analog 1.0 µF <1 ESR VSS VDD12_SW_OUT AVDD12 Ethernet PHY Bandgap and Osc IO Pads Note: Bypass and bulk caps as needed for PCB. Ferrites on AVDDL and AVDD12 may be combined. VDDVARIO (7 pins) +3.3 V (1 pin) (3 pins) (1 pin) (1 pin) Ethernet PHY PLL (exposed pad) VDD25_REG_OUT (1 pin) VDD12_SW_FB VDD_REG_IN (1 pin) 3.3 / 1.2 OTP VDD_OTP (1 pin) (1 pin) AVDDH AVDDL PCIe PHY VP (1 pin) VPTX (1 pin) VPH (1 pin) 3.3 uH 10 µF <0.05 ESR 0.1uF +3.3 V optional 3.3V PHY operation +1.8 V to +3.3 V VDD_SW_IN (1 pin) IN OUT Internal 1.2 V Switching Regulator FEEDBACK REF (1 pin) IN OUT Internal 2.5 V LDO Regulator ENABLE |
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