This product, formerly sold by ams AG, and before that optionally by either Applied Sensors GmbH, acam-messelectronic GmbH or Cambridge CMOS Sensors, is now owned and sold by ScioSense The technical content of this document under ams / Applied Sensors / acam- messelectronic / Cambridge CMOS Sensors is still valid. Contact information Headquarters: ScioSense B.V. High Tech Campus 10 5656 AE Eindhoven The Netherlands info sciosense.com www.sciosense.com AS3933 3D Low Frequency Wake-Up Receiver The AS3933 is a 3-channel low power ASK receiver that is able General Description to generate a wake-up upon detection of a data signal which uses a LF carrier frequency between 15-150 kHz. The integrated correlator can be used for detection of a programmable 16-bit or 32-bit Manchester wake-up pattern. The device can operate using one, two, or three active channels. The AS3933 provides a digital RSSI value for each active channel, it supports a programmable data rate and Manchester decoding with clock recovery. The AS3933 offers an internal Clock Generator, which is either derived from a crystal oscillator or the internal RC oscillator. The user can decide to use the external clock generator instead. The programmable features of AS3933 enable to optimize its settings for achieving a longer distance while retaining a reliable wake-up generation. The sensitivity level of AS3933 can be adjusted in presence of a strong field or in noisy environments. Antenna tuning is greatly simplified, as the automatic tuning feature ensures perfect matching to the desired carrier frequency. The device is available in 16-pin TSSOP and 16-LD QFN (4x4mm) packages, and DoW (dice on wafer). Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS3933, 3D Low Frequency Wake-Up Receiver are listed below: Figure 1: Added Value of Using AS3933 Benefits Features Enables low power active tags 3-channel ASK wake-up receiver Selectable carrier frequency Carrier frequency range 15 150 kHz One, two, or three channel operation 1-D, 2-D, or 3-D wake-up pattern detection Highly resistant to false wake-ups 32-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 Wake-up sensitivity 80VRMS (typ.) sensitivity ams Datasheet Page 1 v1-08 2015-Sep-02 Document Feedback