EM4102 - EM MICROELECTRONIC

EM4102 Read Only Contactless Identification

The EM4102 (previously named H4102) 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 infor.

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 □ Animal implantable transponder □ Animal ear tag □ Industrial transponder Typical Operating Configuration Coil1 EM4102 Coil2 L: typical 20.8mH for fo = 125kHz Fig. 1 Pin Assignment VSS EM4.