AS3930 데이터 시트보기 (PDF) - austriamicrosystems AG

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AS3930

Single Channel Low Frequency Wakeup Receiver

austriamicrosystems AG 

AS3930

Datasheet - Electrical Characteristics

Table 5. Electrical System Specifications

Symbol

Input Sensitivity

Parameter

SENS

Input Sensitivity

Channel Settling Time

TSAMP

Amplifier settling time

Crystal Oscillator

FXTAL

Frequency

TXTAL

Start-up Time

IXTAL

Current consumption

External Clock Source

IEXTCL

Current consumption

RC Oscillator

FRCNCAL

FRCCAL32

FRCCALMAX

Frequency

FRCCALMIN

TCALRC

IRC

Calibration time

Current consumption

Conditions

Min

Typ

Max Units

With 125kHz carrier frequency, chip in

default mode, 4 half bits burst + 4

symbols preamble and single preamble

100

detection

µVrms

250

µs

Crystal dependent

32.768

kHz

1

s

1

µA

1

µA

If no calibration is performed

27

If calibration with 32.768 kHz reference

signal is performed

31

Maximum achievable frequency

after calibration

Minimum achievable frequency

after calibration

32.768 42

kHz

32.768 34.5

kHz

35

kHz

30

kHz

65

Periods of

reference

clock

200

nA

www.ams.com/LF-Receiver/AS3930

Revision 1.5

8 - 32

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