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MLX90109_06 Datasheet

  • MLX90109_06

  • Melexis Microelectronic Systems [125kHz RFID Transceiver]

  • 256.13KB

  • MELEXIS   MELEXIS

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MLX90109
125kHz RFID Transceiver
Features and Benefits
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Integrated RFID transceiver
Adressing 100kHz to 150kHz frequency range transponder.
Biphase and Manchester ASK.
ON/OFF keying modulation.
Low Power and high performances
Unique Parallel Antenna concept for maximum power efficiency.
Power down mode available.
Baud rate selectable 鈥渙n-chip鈥?filtering for maximum sensitivity.
No zero modulation problems.
Low cost and compact design
SO8 package and high level of integration for compact reader design.
No external quartz reference required, only 2 resistors plus antenna.
On chip decoding for fast system design and ease of use.
Open drain data and clock outputs for 2-wire serial communication.
Applications Examples
Car Immobilizers
Portable readers
Access control
House held appliances
Ordering Information
Part No.
MLX90109
MLX90109
Temperature Code
C (0擄C to 70擄C)
E (-40擄C to 85擄C)
Package Code
DC (SOIC 8)
DC (SOIC 8)
Option code
--
--
1 Functional diagram
VDD
2 Description
The MLX90109 is a single chip RFID transceiver
for the 125kHz frequency range. It has been
conceived for minimum system cost and minimum
power consumption, offering all required flexibility
for a state of the art AM transceiver base station.
An external coil (L), and capacitor (C) are
connected as a parallel resonant circuit, that
determines the carrier frequency and the oscillator
frequency of the reader. This eliminates zero
modulation effects by perfect antenna tuning, and
avoids the need for an external oscillator.
The reader IC can easily be switched to power
down by setting the antenna amplitude to zero.
The MLX90109 can be configured to decode the
transponder signal on-chip. In this case the
decoded signal is available through a 2-wire
interface with clock and data. For minimum
interface wiring, the non-decoded transponder
signal can also be made available on a single wire
interface.
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Page 1 of 15
Data Sheet
Jun/06

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