Low-frequency wakeup receiver

  • 05-Jan-2010 10:41 EST
PR09_745_AS3930_LF wakeup receiver_preview.jpg

The AS3930 from austriamicrosystems is a single-channel, low-power, low-frequency wakeup receiver. The device, says the company, offers the highest sensitivity at lowest current consumption for the industry’s best range. The AS3930 supports the widely used 125 kHz band and, through the optimization of power consumption, sensitivity, and programmability, enables a variety of applications. It has a single receiving channel and an internal RC oscillator, allowing a very low external component count for maximum performance vs. cost and reduced size. The received data can be correlated with a pattern that is programmed in the register, preventing false wakeups. Primary target applications are active radio-frequency identification (RFID), high-value asset tracking, real-time location systems, operator identification, and access control or keyless entry.

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