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參數資料
| 型號： | MLX90109 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 125kHz RFID Integrated Transceiver |
| 中文描述： | 125KHz的RFID集成收發器 |
| 文件頁數： | 2/9頁 |
| 文件大小： | 143K |
| 代理商： | MLX90109 |
MLX90109
125kHz RFID Integrated Transceiver
MLX90109 Parallel Resonant transceiver
Page 2 of 9
Rev 1.4 19-Dec-00
MLX90109 Electrical Specifications
DC Operating Parameters T
A
= -40
o
C to 85
o
C, V
DD
= 5V (unless otherwise specified)
General test conditions (see test set up blockdiagram) Creader= 21pF, Qreader=17, Lreader =75uH, Zant=1kOhm
T: 100% tested, C: guaranteed by Design & Characterization
Parameter
Symbol
Test Conditions
Mn
Typ
Max
Units
Supply Voltage
VDD
4.5
5
5.5
V
T
Operating Resonance Freq.
Fres
100
150
kHz
C
Fres Temperature detuning
(
T)Fres
-1
+1
%
T
Quality factor Antenna
Qant
See footnote
1
10
50
C
Antenna Impedance
Zant
1
10
k
C
Power down Current
IDDsleep
MODU = 5V
1
uA
T
Max. Operating Current
IDDmax
MODU = 1V, excluding antenna driver
current
0.6
1.5
mA
T
Coil pin clamping Voltage
Vclamp
21
26
V
T
Max Antenna Driver Current
Idrivemax
DC equivalent, See footnote
2
5
8.5
mA
C
MODU power up current
Imodupor
See footnote
3
60
uA
C
MODU power down voltage
Vmodupd
See footnote
4
4.2
4.35
4.5
V
C
MODU minimum voltage
Vmodumin
See footnote
5
0.8
V
C
Max. Antenna Voltage swing
Vantmax
MODU = 1V
8.0
8.6
Vpp
T
Modulation depth
Vant
MODU switched between 0.5 and 1.5V,
1.4
2
2.6
V
T
1
A minimum Quality factor is required in order for the reader to recover the transponder signal. The maximum
quality factor is not limited, since the transponder signal is picked up even.
2
Antenna driver current is dimensioned, so as to guarantee that for Zant, within the specified range, the antenna
driver can act as a perfect current source to drive the resonant circuit.
For a typical Zant~
ω
L*Q = 1kOhm (e.g. L= 67uH, Q=19), and MODU at 1V, MLX90109 will force 4V antenna
amplitude, therefore should supply 4mA current amplitude on the first harmonic sine wave.
Duty cycle is 50%, therefore the equivalent DC current consumption for such a system is 1.3mA.
3
Power up is realized by forcing a current into MODU through the external correction network. This will release
an internal strap to VDD of the MODU pin.
4
The MLX90109 goes in power down mode when the MODU pin is brought to VDD.
5
Voltages below Vmodumin, may cause the antenna Voltage to drop below VSS+0.3V. This will degrade the
performance of the current driver. There is always a slight overshoot of the antenna voltage due to the antenna
resonance.
6
Since the modulation is realized by altering (
duty )the duty cycle around the 50% value, the driver current
setting influences directly the modulation depth, as Moddepth=Zant*Idrive*
duty.
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相關代理商/技術參數 |
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| MLX90109_06 | 制造商:MELEXIS 制造商全稱:Melexis Microelectronic Systems 功能描述:125kHz RFID Transceiver |
| MLX90109CDC-AAA-000-RE | 制造商:Melexis Semiconductors 功能描述:IC TXRX RFID 125KHZ 8SOIC 制造商:Melexis Semiconductors 功能描述:125 KHz RFID Transceiver |
| MLX90109CDC-AAA-000-TU | 制造商:Melexis Semiconductors 功能描述:IC TXRX RFID 125KHZ 8SOIC 制造商:Melexis Semiconductors 功能描述:125 KHz RFID Transceiver |
| MLX90109EDC-AAA-000-RE | 功能描述:IC RFID TXRX 125KHZ 8-SOIC RoHS:是 類別:RF/IF 和 RFID >> RFID IC 系列:MLX90121 其它有關文件:CR14 View All Specifications 標準包裝:1 系列:- RF 型:收發器 頻率:13.56MHz 特點:ISO14443-B 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SO 包裝:Digi-Reel® 其它名稱:497-5719-6 |
| MLX90109EDC-AAA-000-SP | 制造商:Melexis Semiconductors 功能描述:MLX90109 Series 3.1 to 5.5 V 125 kHz Surface Mount RFID Transceiver - SOIC-8 |
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