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WM8321 数据表(PDF) 24 Page - Wolfson Microelectronics plc |
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WM8321 数据表(HTML) 24 Page - Wolfson Microelectronics plc |
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24 / 253 page  WM8321 Production Data w PD, February 2012, Rev 4.0 24 7.6 DIGITAL INTERFACES Unless otherwise noted: TJ = -40°C to +125°C; Typical values are at TJ = +25ºC PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT ON ¯¯ , RESET ¯¯¯¯¯¯, IRQ ¯¯¯, CIFMODE, SDOUT1, SCLK1, SDA1, CS ¯¯ , SCLK2, SDA2 Input HIGH Level VIH 0.75 x VDD V Input LOW Level VIL 0.2 x VDD V Output HIGH Level VOH IOH = 1mA 0.8 x VDD V Output LOW Level VOL IOL = -1mA 0.2 x VDD V ‘VDD’ is the voltage of the applicable power domain for each pin, as defined in Section 3. ON pin pull-up resistance RPU 140 kΩ RESET pin pull-up resistance RPU DBVDD=1.8V 180 kΩ DBVDD=3.6V 85 IRQ pin pull-up resistance RPU DBVDD=1.8V 180 kΩ DBVDD=3.6V 85 SCLK2 pin pull-down resistance RPD 100 kΩ SDA2 pin pull-down resistance RPD 100 kΩ 7.7 AUXILIARY ADC Unless otherwise noted: TJ = +25ºC PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input resistance RGPIO10, 11, 12 During measurement 400 kΩ Input voltage range VGPIO10, 11, 12 GPn_PWR_DOM = 0 0 VDBVDD V GPn_PWR_DOM = 1 0 VPVDD Input capacitance CGPIO10, 11, 12 2 pF AUXADC Resolution 12 bits AUXADC Conversion Time 39 µs AUXADC accuracy Input voltage = 3V -2.5 +2.5 % 7.8 SYSTEM STATUS LED DRIVERS Unless otherwise noted: TJ = +25ºC PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT LED1 and LED2 Sink current VLED1/2 = 1V 10 mA |
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