AS3910-BQFP 查看數據表（PDF） - austriamicrosystems AG

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AS3910-BQFP

13.56 MHz RFID Reader IC, ISO-14443 A/B

austriamicrosystems AG 

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

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