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USB3320 数据表(PDF) 15 Page - Microchip Technology |
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USB3320 数据表(HTML) 15 Page - Microchip Technology |
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15 / 70 page ![]() 2014-2015 Microchip Technology Inc. DS00001792B-page 15 USB3320 Note 4-8 The RVPD and RVPU values include the required 1kΩ external RVBUS resistor. 4.8 USB Audio Switch Characteristics 4.9 Regulator Output Voltages and Capacitor Requirement Note 4-9 REFCLK , XO, SPK_L and SPK_R pins: ±5kV Human Body Model. TABLE 4-8: USB AUDIO SWITCH CHARACTERISTICS Parameter Symbol Condition MIN TYP MAX Units Minimum “ON” Resistance RON_Min 0 < Vswitch < VDD33 2.7 5 5.8 Ω Maximum “ON” Resistance RON_Max 0 < Vswitch < VDD33 4.5 7 10 Ω Minimum “OFF” Resistance ROFF_Min 0 < Vswitch < VDD33 1MΩ TABLE 4-9: REGULATOR OUTPUT VOLTAGES AND CAPACITOR REQUIREMENT Parameter Symbol Condition MIN TYP MAX Units Regulator Output Voltage VDD33 6V > VBAT > 3.1V 3.0 3.3 3.6 V Regulator Output Voltage VDD33 USB UART Mode & UART RegOutput[1:0] = 01 6V > VBAT > 3.1V 2.7 3.0 3.3 V Regulator Output Voltage VDD33 USB UART Mode & UART RegOutput[1:0] = 10 6V > VBAT > 3.1V 2.47 2.75 3.03 V Regulator Output Voltage VDD33 USB UART Mode & UART RegOutput[1:0] = 11 6V > VBAT > 3.1V 2.25 2.5 2.75 V Regulator Bypass Capacitor COUT 2.2 uF Bypass Capacitor ESR CESR 1 Ω TABLE 4-10: ESD AND LATCH-UP PERFORMANCE Parameter Conditions MIN TYP MAX Units Comments ESD PERFORMANCE Note 4-9 Human Body Model ±8 kV Device System EN/IEC 61000-4-2 Contact Discharge ±8 kV 3rd party system test System EN/IEC 61000-4-2 Air-gap Discharge ±15 kV 3rd party system test LATCH-UP PERFORMANCE All Pins EIA/JESD 78, Class II 150 mA |
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