MLX90109EDC Melexis Inc, MLX90109EDC Datasheet - Page 11
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MLX90109EDC
Manufacturer Part Number
MLX90109EDC
Description
IC RFID TXRX 125KHZ 8-SOIC
Manufacturer
Melexis Inc
Series
MLX90109r
Datasheet
1.EVB90109.pdf
(15 pages)
Specifications of MLX90109EDC
Rf Type
Read / Write
Frequency
125kHz
Features
Low Power Consumption
Package / Case
8-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MLX90109EDCTR
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Manufacturer
Quantity
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10 Typical configuration: READ/WRITE ON/OFF keying (FDX-B100)
The basic principle is to switch the voltage on MODU between 0V and V
maximum amplitude in less than 3 periods when MODU is stepped down from V
power-down (set V
antenna’s quality factor Q
microcontroller could be used to decrease the fall time (refer to the application note MLX90109 “100%
modulation (ON/OFF Keying)”.
Note : Care should be taken to the capacitor C1 which may reduce the fall time.
3901090109
Rev 008
10.1 Application diagram
MODU
up to V
ant
. For fast protocols, an additional drain resistor on MODU controlled by the
DD
) will let the antenna fade-out with a time constant, depending on the
Page 11 of 15
125kHz RFID Transceiver
DD
. The antenna will reach its
DD
MLX90109
to V
SS
. Setting the chip in
Data Sheet
Jun/06