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| 型号： | EM4005B5CB2RC |
| 英文描述： | Analog Miscellaneous |
| 中文描述： | 模拟杂项 |
| 文件页数： | 1/8页 |
| 文件大小： | 120K |
| 代理商： | EM4005B5CB2RC |
EM4005
EM4105
Copyright
2002, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
ISO 11'784 / 11'785 Compliant Read Only Contactless Identification Device
Description
The EM4005/EM4105 (previously named H4005/H4105)
is a CMOS integrated circuit intented for use in electronic
Read Only RF Transponders. The circuit is powered by
an external coil placed in an electromagnetic field, and
gets its master clock from the same field via one of the
coil terminals. The other coil terminal is affected by the
modulator. By turning on and off the modulation current,
the chip will send back the 128 bits of information
contained in a factory pre-programmed memory array.
The programming of the chip is performed by laser fusing
of polysilicon links in order to store a unique code on each
chip.
Due to the low power consumption of the logic core, no
supply buffer capacitor is required. Only an external coil is
needed to obtain the chip function. A parallel resonance
capacitor of 75 pF is also integrated.
Features
128 bit memory array laser programmable
Bit duration : 32 periods of RF field
Bit coding according to ISO FDX-B
On chip resonnance capacitor
On chip supply buffer capacitor
Wide dynamic range
On chip voltage limiter
Full wave rectifier
Large modulation depth
Operating frequency 100 - 150 kHz
Very small chip size convenient for implantation
Very low power consumption
Applications
Animal implantable transponder
Animal ear tag
Industrial transponder
Typical Operating Configuration
Coil1
Coil2
EM4005
Fig. 1
Pin Assignment
COIL 1
Coil terminal / Clock input
COIL 2
Coil terminal
EM4005
COIL2
COIL1
VDD
VSS
Fig. 2
EM MICROELECTRONIC - MARIN SA
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