AS3930-BQFT ScioSense

AS3930 Single Channel Low Frequency Wakeup Receiver The AS3930 is a single-channel low power ASK receiver that is General Description able to generate a wake-up upon detection of a data signal which uses a LF carrier frequency between 110 - 150 kHz. The integrated correlator can be used for detection of a programmable 16-bit wake-up pattern. The AS3930 provides a digital RSSI value, it supports a programmable data rate. The AS3930 offers a real-time clock (RTC), which is either derived from a crystal oscillator or the internal RC oscillator. The programmable features of AS3930 enable to optimize its settings for achieving a longer distance while retaining a reliable wake-up generation. The sensitivity level of AS3930 can be adjusted in presence of a strong field or in noisy environments. The device is available in a 16-pin TSSOP and a 16-LD QFN (4x4) package. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS3930, Single Channel Low Frequency Wakeup Receiver are listed below: Figure 1: Added Value of Using AS3930 Benefits Features Enables low power active tags Single channel ASK wake-up receiver Selectable carrier frequency Carrier frequency range 110 150 kHz Highly resistant to false wake-ups 16-bit programmable wake-up pattern Improved immunity to false wake-ups Supporting doubling of wake-up pattern Allows frequency only detection Wake-up without pattern detection selectable Improved range with best-in-class sensitivity Wake-up sensitivity 100VRMS (typ.) Adjustable range Sensitivity level adjustable Provides tracking of false wake-ups False wake-up counter Ensures wake-up in a noise environment Periodical forced wake-up supported (1s 2h) Extended battery life Current consumption in listening mode 1.37 A (typ.) Flexible clock configuration RTC based 32 kHz XTAL, RC-OSC, or external clock ams Datasheet Page 1 v1-62 2014-Nov-27 Document FeedbackAS39 30 Gene ral Des c rip t ion Benefits Features Operates from a 3V battery Operating supply range 2.4V 3.6V (TA = 25C) Industrial temperature range Operation temperature range -40C to +85C Applications The AS3930, Single Channel Low Frequency Wakeup Receiver is ideal for Active RFID tags, real-time location systems, operator identification, access control, and wireless sensors. Figure 2: AS3930 Typical Application Diagram with Crystal Oscillator VCC VCC CS CL CBAT XIN XTAL XOUT DAT TRANSMITTER LF1P WAKE TX AS3930 NC SCL SDO NC LFN SDI VSS GND Page 2 ams Datasheet Document Feedback v1-62 2014-Nov-27 Transmitting Antenna