AS3909 Просмотр технического описания (PDF) - austriamicrosystems AG
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AS3909 Datasheet PDF : 77 Pages
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Electrical Characteristics
Symbol
Parameter
Conditions
RO
Output Resistance
SPI Timing
TSENL
TSCLKL
TSCLKH
TSENCLKR
TSENCLKF
SPI reset (SEN low)
SCLK low
SCLK high
SEN rising to SCLK rising first SCLK pulse
SCLK falling to SEN falling last SCLK pulse
Min
Typ Max Unit
250
500
Ω
100
ns
100
ns
100
ns
50
ns
50
ns
Figure 9:
Electrical Characteristics
Electrical Specification
VDD = 3.3V, Temperature = 25ºC, unless otherwise noted.
Symbol
Parameter
Comments
IPD
Supply current in Power-down
mode
INFC
Supply current in Initial NFC
target mode
IRD
Supply current in Ready mode
13.56 MHz Xtal used,
MCU_CLK disabled
IRA
Supply current Receiver active
13.56 MHz Xtal used,
ILP
Supply current Receiver active, MCU_CLK disabled
low power mode
RRFO
RFO1 and RFO2 driver output
resistance
IRFO=10mA
All segments ON
VRFI
VRFI_LP
RFI input sensitivity
fSUB=848kHz (1)
RFI input sensitivity, low power
receiver mode
fSUB=848kHz
RRFI
VPOR
VAGD
RFI input resistance
Power on Reset Voltage
AGD voltage
VAR
Regulator drop
After execution of direct
command Adjust
Regulators
Min Typ Max Unit
0.3
2
μA
3.5
7
μA
2
3
mA
5
7
mA
3
5
mA
1.5
4
Ω
0.5
mVrms
1.5
mVrms
10
kΩ
1.0 1.4 <2.4
V
1.4 1.5 1.6
V
250
mV
AS3909/AS3910 – 8
ams Datasheet, Confidential: 2013-Oct [3-02]
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