Product Summary

The EM4095 (previously named P4095) chip is a CMOS integrated transceiver circuit intended for use in an RFID basestation to perform the following functions: antenna driving with carrier frequency, AM modulation of the field for writable transponder, AM demodulation of the antenna signal modulation induced by the transponder. The applications of the EM4095 include Car immobiliser, Hand held reader, Low cost reader.

Parametrics

EM4095 absolute maximum ratings: (1)Storage temperature: -55 to +150℃; (2)Maximum voltage at VDD: VSS+6V; (3)Minimum voltage at VDD: VSS -0.3V; (4)Max. voltage other pads: VDD +0.3V; (5)Min. voltage other pads: VSS -0.3V; (6)Max. junction temperature: +125℃; (7)Electrostatic discharge max. to MIL-STD-883C method 3015 against VSS: 4000V; (8)Electrostatic discharge max. to MIL-STD-883C method 3015 (only for pins ANT1 and ANT2) against VSS: 10000V; (9)Maximum Input/Output current on all pads except VDD, VSS, DVDD, DVSS, ANT1, ANT2, RDY/CLK: 10mA; (10)Maximum AC peak current on ANT1 and ANT2 pads 100 kHz duty cycle 50%: 300mA.

Features

EM4095 features: (1)Integrated PLL system to achieve self adaptive carrier frequency to antenna resonant frequency; (2)No external quartz required; (3)100 to 150 kHz carrier frequency range; (4)Direct antenna driving using bridge drivers; (5)Data transmission by OOK (100% Amplitude Modulation) using bridge driver; (6)Data transmission by Amplitude Modulation with externally adjustable modulation index using single ended driver; (7)Multiple transponder protocol compatibility (Ex: EM400X, EM4050, EM4150, EM4070, EM4170, EM4069….); (8)Sleep mode 1μA; (9)USB compatible power supply range; (10)40 to +85℃ temperature range; (11)Small outline plastic package SO16.

Diagrams

EM4095 block diagram

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