AS3910-BQFP 데이터 시트보기 (PDF) - austriamicrosystems AG
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AS3910-BQFP Datasheet PDF : 47 Pages
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AS3910
Data Sheet - Electrical Characteristics
VDD = 3.3V, Temperature = 25ºC, unless otherwise noted.
Table 5. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
IPD
Supply current in Power-down mode
0.3
Supply current in Initial NFC target mode
3.5
IRD
Supply current in Ready mode
13.56 MHz Xtal used, MCU_CLK
disabled
2
IRA
Supply current Receiver active
5
13.56 MHz Xtal used,
ILP
Supply current all active, low power
receiver mode
MCU_CLK disabled
3
RRFO RFO1 and RFO2 driver output resistance
IRFO=10mA
All segments ON
1.5
VRFI
RFI input sensitivity
fSUB=848kHz1
0.5
VRFI_LP
RFI input sensitivity, low power receiver
mode
fSUB=848kHz
1.5
RRFI
RFI input resistance
10
VPOR
VAGD
VAR
Power on Reset Voltage
AGD voltage
Regulator drop
1.0
1.4
1.4
1.5
After execution of direct command
Adjust Regulators
250
13.56MHz or 27.12MHz crystal
TOSU
Oscillator start-up time
RS=50Ω max, load capacitance
0.7
according to crystal specification
1. Amplitude of carrier signal at RFI inputs is 2.5Vpp, maximum amplitude is 3Vpp.
Max
Units
2
µA
7
µA
3
mA
7
mA
5
mA
4
Ω
mVrms
mVrms
kΩ
<2.4
V
1.6
V
mV
ms
www.austriamicrosystems.com/HF_RFID_Reader/AS3910
Revision 2.3
9 - 47
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