AS3932 Просмотр технического описания (PDF) - austriamicrosystems AG
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AS3932 Datasheet PDF : 33 Pages
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AS3932
Data Sheet - Electrical Characteristics
Table 5. Electrical System Specifications
Symbol
Parameter
Conditions
Min Typ Max Units
I3CHSCRC
Current Consumption in
scanning mode with three
active channels and RC-
oscillator as RTC
2.7
µA
I3CHOORC
Current Consumption in ON/
OFF mode with three active
channels and RC-oscillator as
RTC
11% Duty Cycle
50% Duty Cycle
1.7
µA
3.45
I3CHXT
Current Consumption in
standard listening mode with
three active channels and
crystal oscillator as RTC
6.5
8.9
µA
IDATA
Current Consumption in
Preamble detection / Pattern
correlation / Data receiving
mode (RC-oscillator)
Input Sensitivity
With 125 kHz carrier frequency and 1 kbps
data-rate. No load on the output pins.
8.3
12
µA
SENS
Input Sensitivity on all
channels
With 125 kHz carrier frequency, chip in default
mode, 4 half bits burst + 4 symbols preamble
and single preamble detection
100
Channel Settling Time
µVrms
TSAMP
Amplifier settling time
250
µs
Crystal Oscillator
FXTAL
Frequency
Crystal dependent
32.768
kHz
TXTAL
Start-up Time
Crystal dependent
1
s
IXTAL
Current consumption
1
µA
External Clock Source
IEXTCL
RC Oscillator
Current consumption
1
µA
FRCNCAL
Frequency
If no calibration is performed
27 32.768 42
kHz
FRCCAL32
Frequency
If calibration with 32.768 kHz reference signal
is performed
31
32.768 34.5
kHz
FRCCALMAX
Frequency
Maximum achievable frequency after
calibration
35
kHz
FRCCALMIN
Frequency
Minimum achievable frequency after calibration
30
kHz
TCALRC
Calibration time
Periods of
65
reference
clock
IRC
Current consumption
200
nA
www.austriamicrosystems.com/AS3932
Revision 1.2
9 - 33
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