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AS3688 Datasheet(PDF) 67 Page - ams-OSRAM AG |
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AS3688 Datasheet(HTML) 67 Page - ams-OSRAM AG |
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67 / 72 page ![]() AS3688 austriami crosyst ems Datasheet, Confidential www.austriamicrosystems.com (ptr,tje) Revision 1.1.1 / 20060707 65 - 70 Table 28 – Pinlist QFN32 Pin Name Type Description 29 DCDC_FB (CURR41) AI DCDC feedback. Connect to resistor string. Alternative function: General purposed current sink 30 V2_5 AO3 Output voltage of the Low-Power LDO; always connect a ceramic capacitor of 1µF (±20%) or 2.2µF (+100%/-50%). Caution: Do not load this pin during device startup. 31 CREF AIO Bypass capacitor for the internal voltage reference; always connect a capacitor of 100nF. Caution: Do not load this pin. 32 RBIAS AIO External resistor; always connect a resistor of 220kΩ (±1%) to ground. Caution: Do not load this pin. 33 VSS VSS Ground pad (QFN32: exposed paddle). Table 29 – Pin Type Definitions Type Description DI Digital Input DI3 3.3V Digital Input DO Digital Output DIO Digital Input/Output DIO3 3.3V Digital Input/Output OD Open Drain (the device can only pulldown this type of pin) AIO Analog Pad AI Analog Input AI_HV High-Voltage (15V) Pin AO Analog Output (5V) AO3 Analog Output (3.3V) S Supply Pad GND Ground Pad |
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