AS3930 Datasheet, PDF (1/33 Pages) ams AG – Single Channel Low Frequency Wakeup Receiver

Data Sheet
AS3930
Single Channel Low Frequency Wakeup Receiver
1 General Description
The AS3930 is a single-channel low power ASK receiver that is able
to generate a wakeup 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
wakeup pattern.
The AS3930 provides a digital RSSI value, it supports a
programmable data rate and Manchester decoding with clock
recovery. 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
wakeup generation. The sensitivity level of AS3930 can be adjusted
in presence of a strong field or in noisy environments.
The device is available in 16 pin TSSOP and QFN 4x4 16 LD
packages.
2 Key Features
Single channel ASK wakeup receiver
Carrier frequency range 110 - 150 kHz
Programmable wakeup pattern (16bits)
Doubling of wakeup pattern supported
Wakeup without pattern detection supported
Wakeup sensitivity 100µVRMS (typ.)
Adjustable sensitivity level
Highly resistant to false wakeups
False wakeup counter
Periodical forced wakeup supported (1s – 2h)
Low power listening modes
Current consumption in listening mode 1.37 µA (typ.)
Data rate adjustable from 0.5 - 4 kbps (Manchester)
Manchester decoding with clock recovery
Digital RSSI
Dynamic range 64dB
5 bit RSSI step (2dB per step)
RTC based on 32kHz XTAL, RC-OSC, or external clock
Operating temperature range -40 to +85ºC
Operating supply voltage 2.4 - 3.6V (TA = 25ºC)
Bidirectional serial digital interface (SDI)
Package option 16 pin TSSOP, QFN 4x4 16 LD
3 Applications
The AS3930 is ideal for Active RFID tags, real-time location
systems, operator identification, access control, and wireless
sensors.
www.austriamicrosystems.com/AS3930
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