H4005

EM MICROELECTRONIC-MARIN SA H4005 ISO 11'784 / 11'785 COMPLIANT READ ONLY CONTACTLESS IDENTIFICATION DEVICE 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 Typical Operating Configuration Coil 2 L H4005 Coil 1 Description The H4005 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. Fig. 1 Pin Assignment COIL2 H4005 COIL1 VSS VDD Applications Animal implantable transponder Animal ear tag Indus...