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| 型号： | EM4100A6CB2RC |
| 元件分类： | 线性稳压 |
| 英文描述： | Single 12V Input Supply Dual Regulator - Synchronous Rectified Buck PWM and Linear Power Controller; Temperature Range: -40°C to 85°C; Package: 16-QFN |
| 中文描述： | 模拟杂项 |
| 文件页数： | 1/9页 |
| 文件大小： | 78K |
| 代理商： | EM4100A6CB2RC |
EM4100
Copyright
2002, EM Microelectronic-Marin SA
1
www.emmicroelectronic.com
Read Only Contactless Identification Device
Description
The EM4100 (previously named H4100) is a CMOS
integrated circuit 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. By
turning on and off the modulation current, the chip will
send back the 64 bits of information contained in a factor y
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.
The EM4100 has several metal options which are used to
define the code type and data rate. Data rates of 64, 32
and 16 periods of carrier frequency per data bit are
available. Data can be coded as Manchester, Biphase or
PSK.
Due to 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 74 pF is also integrated.
Features
64 bit memory array laser programmable
Several options of data rate and coding available
On chip resonance capacitor
On chip supply buffer capacitor
On chip voltage limiter
Full wave rectifier on chip
Large modulation depth due to a low impedance
modulation device
Operating frequency 100 - 150 kHz
Very small chip size convenient for implantation
Very low power consumption
Applications
Logistics automation
Anticounterfeiting
Access control
Industrial transponder
Typical Operating Configuration
Coil1
Coil2
EM4100
L: typical 21.9mH for fo = 125kHz
Fig. 1
Pin Assignment
EM4100
COIL1
COIL2
VDD
VSS
COIL1
Coil terminal / Clock input
COIL2
Coil terminal
Fig. 2
EM MICROELECTRONIC - MARIN SA
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