RFID Contactless Reader
RFID contactless reader contains both digital and analog section. Information on these two sections are
provided below.
RFID Contactless Reader – Digital Section
Device classification
USB full speed device
Operating Voltage / Current
5V / 50mA
Digital/Analog
Digital circuitry
Crystal Frequency
8 MHz
PLL Multiplier
x6 (48 Mhz internal frequency)
Data transfer rate
12Mbps
Intentional Radiation
No
Software requirements
Microsoft CCID smartcard driver is required. Only if the driver is loaded
in the host machine the digital section will enable the RFID analog
section. There are no application software requirements to get the RFID
active. However, to reader RFID passport application software (like
Golden reader tool) is required.
RFID Contactless Reader – Analog Section
Device classification
RFID transceiver
Operating Voltage / Current
5V / 150mA
RFID protocol
ISO14443 Type A and Type B
Digital/Analog
Analog circuitry
Crystal Frequency
13.56 MHz
PLL Multiplier
None
RF Data transfer rate
424 Kbps
Intentional Radiation
Yes
Carrier frequency
13.56 Mhz +/- 7 KHz
Sub Carrier frequency
847 KHz (max)
Number of Antenna
2
Output power
< 250 mW
RF field strength
6 A/m (RMS)
Software requirements
Refer the RFID contactless reader - digital section software requirements
Operational Description:
The RFID contactless reader is a proximity reader that operates on 13.56 Mhz carrier frequency. It
communicates to RFID passports using ISO14443 A/B protocols. The reader has two inbuilt antennas and
it keeps switching the carrier between the two antennas, polling for RFID passports. The following
diagram shows the internal blocks of the RFID reader.
