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SENSOR MANUALPyroelectric InfraredRadial SensorTYPE: AS312NANYANG SENBA OPTICAL AND ELECTRONIC CO.，LTD.Page 1 of 5www.nysenba.com
SENSOR MANUALDigital Smart Pyroelectric Detector AS312AS312 is a newest smart digital motion detector with a small window size.It offers a complete motion detector solution, with all electronic circuitry builtinto the detector housing. Only a power supply and power-switchingcomponents need to be added to make the entire motion switch.AS312 delay time is 2 seconds. Features and Benefits Digital signal processing（DSP） Power adjustable, save more energy Two-way differential high impedance sensor input and temperaturecompensation Built-in filter, screen the interference by other frequency Excellent power supply rejection, Insensitive to RF interference Schmidt REL output Application Intelligent applianceAlarmsMotion detectorSensor lamp, Sensor switchSecurity systemAutomatic control etc. DimensionPage 2 of 5www.nysenba.com
SENSOR MANUAL Technical Data1. Maximum RatingsCharacteristicsSupply VoltageWorkingTemperatureMax.current for pinStorageTemperatureSymbolVDDTSTMin. Value-0.3-20Max. Value3.685UnitV IntoTST-100-40100125mA Remarks2.Working Conditions (T 25 C, Vdd 3V)CharacteristicsSymbolMin.TypeMax.UnitSupply VoltageVDD2.733.3VWorking CurrentIDD121520μASensitivityVSENS120It is not adjustablemAVOL 1VmAVOL (VDD-1V)IOLOutput High CurrentIOHLock timeTOL2.3sOn-timeTOH2.3s-10IR 0.5mAμAOutput RELOutput Low Current10RemarksIt is not adjustableOscillator & FilterLow pass filter cut-offfrequencyHigh pass filter cut-offfrequencyOscillator frequency on ChipFCLK7Hz0.44Hz64kHzInterior Block DiagramPage 3 of 5www.nysenba.com
SENSOR MANUAL Typical ApplicationNotes: The circuit design for PIR Sensor AS312 . Spectral Response of Window MaterialsNotes: The average transitivity curve for silicon filter with 5.5μm pass IR filterPage 4 of 5www.nysenba.com
SENSOR MANUAL Detection ViewX-Y sectional viewYdetecting zoneNotes：1.X-Y sectional view represent the detectingarea。X2.Objects with temperature difference can beDetected in the vertical level.12m96336912mNANYANG SENBA OPTICAL AND ELECTRONIC CO. LTD.SHENZHEN BRANCHAdd : 2nd Floor, No.4 Building,Huawan Industry Zone, Gushu,Bao’an Dist., Shenzhen City, ChinaWebsite: www.nysenba.comE-mail : zz@sbcds.com.cnTel : 86-755-82594732Fax : 86-755-82594762Page 5 of 5www.nysenba.com
AS312 is a newest smart digital motion detector with a small window size. It offers a complete motion detector solution, with all electronic circuitry built , into the detector housing. Only a power supply and power-switching components need to be added to make the entire motion switch. AS312 delay time is 2 seconds. , Features and Benefits ,
