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參數(shù)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(fā)器 |
| 文件頁數(shù)： | 8/9頁 |
| 文件大小： | 143K |
| 代理商： | MLX90109 |
MLX90109
125kHz RFID Integrated Transceiver
MLX90109 Parallel Resonant transceiver
Page 8 of 9
Rev 1.4 19-Dec-00
Unique Features
Use of a parallel antenna offers multiple
advantages:
-
maximum power efficiency.
-
minimum system components
Ease of use thanks to:
-
self resonating principle avoids zero
modulation
-
flexible system configuration with higher Q's
-
High level of integration.
A complete reader can be integrated on an ultra
small PCB thanks to:
-
small body (150mills) SOIC8 package
-
limited amount of external components
-
Integrated decoding minimize demands on
microcontroller side.
Cross Reference
The MLX90109 can replace any integrated front-
end base station chip for read write operation to
125kHz transponders in the 125kHz range.
All competitive products are with serial antenna,
e.g. Marin p4092, or TEMIC U2270B.
Absolute Maximum Ratings
Supply Voltage, V
DD
(Overvoltage)
VSS-0.3V to
VSS+6V
[-55, 125]
°
C
2kV
Storage Temperature Range, T
S
ESD Sensitivity
ESD Precautions
Electronic semiconductor products are sensitive
to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control
procedures whenever handling semiconductor
products.
Disclaimer
Melexis reserves the right to periodically make
modifications to product specifications. The
information included herein is believed to be
accurate and reliable. However, Melexis
assumes no responsibility for its use; nor for
any infringements of patents or other rights of
third parties which may result from its use.
Melexis
FAQ
1. Since the MLX90109 under the specified
working conditions does not influence the
antenna resonance frequency, the spread
and temperature drift are determined by the
discrete antenna components only.
2. The same feature allows significantly
detuned
transponders
resonance frequency in case of good
coupling. This can be used to tune the
MLX90111 after assembly, to allow use of
high Q factors at minimum assembly cost.
to
change
the
3. Q = quality factor of the antenna reflects the
ratio between the stored electromagnetic
energy vs. the ohmic dissipated energy.
Without degrading Rpar:
Qreader = (2*pi*Fres*Lr)/Rr
Else Rr can often be neglected resulting in:
Qreader = Rpar*sqrt(Cr/Lr)
4. Zero Modulation
Due
frequency
antennas compared to an external oscillator
frequency,
the
induced by the transponder on the reader
antenna is a mixture of amplitude and phase
modulation. At special combinations of the
three frequencies a pure phase modulation,
or zero (amplitude) modulation occurs.
Since the MLX90109 clock is extracted from
the antenna resonance frequency it is not
susceptible to this phenomenon.
to
mistuning
of
of
the
resonance
and
reader
transponder
amplitude
modulation
5. The MLX90109 is insensitive to DC
magnetic levels.
6. Modudepth
(VPPmax+VPPmin)
=
(VPPmax-VPPmin)/
Glossary of Terms
1. Base station = reader IC + microcontroller
2. Transceiver = Write (Transmitter) and read
(receiver) unit
3. Q = antenna quality factor.
4. Modulation depth = ratio between the
antenna amplitudes that are used for
sending data with amplitude modulation.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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(fā)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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