MLX90121EFR_FSK Melexis Inc, MLX90121EFR_FSK Datasheet - Page 12
MLX90121EFR_FSK
Manufacturer Part Number
MLX90121EFR_FSK
Description
IC RFID TXRX 13.56MHZ 20-SSOP
Manufacturer
Melexis Inc
Series
MLX90121r
Datasheet
1.DEMO90121DA.pdf
(25 pages)
Specifications of MLX90121EFR_FSK
Rf Type
Read / Write
Frequency
13.56MHz
Features
ISO14443-A, ISO14443-B, ISO15693
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MLX90121DEFRFSK
MLX90121EFR
MLX90121EFRTR
MLX90121EFRTR
MLX90121EFR_FSKTR
MLX90121EFR
MLX90121EFRTR
MLX90121EFRTR
MLX90121EFR_FSKTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MLX90121EFR_FSKMLX90121EFR-FSK
Manufacturer:
UPI
Quantity:
3 100
The ISO15693 protocol, mode 1 out of 256, is implemented using three symbols. Start of frame (SOF),
end of frame (EOF) and pulses encoding result of the combination of these three symbols.
Note
The ISO14443 -B protocol is implemented with only two symbols. This allows fast addressing with only
one CK pulse.
Time Reference Setup
The time reference is defined in the EncoderTimeRef register. The time reference contains the value of
one bit time. Hence
The bit time is defined by the EncTimeRef parameter. EncTimeRef is an integer value, it is calculated as
follows:
EncTimeRef is coded on 5 bits. This means that Bit_Time_max = 9.44 s and Symbol_Time_max =
75.52 s.
ISO Examples
3901090121
Rev. 009
The position of the symbol Sym1 encodes pulses from 1 to 256. For example: Pulse1 = Sym1 +
255*Sym0 and Pulse45 = 44*Sym0 + Sym1 + 211*Sym0.
Symbol
_
Time
EncTime
8
*
Bit
Re
_
Page 12 of 26
Time
f
Bit
1
. 3
39
_
Time
Mhz
13.56MHz RFID Transceiver
1
MLX90121
Data Sheet
Sept.-2009