Description

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

communicate with a microprocessor via simple interface.

Features

Integrated PLL system to achieve self adaptive carrier frequency to antenna resonant frequency

No external quartz required

100 to 150 kHz carrier frequency range

Direct antenna driving using bridge drivers

Data transmission by OOK (100 Amplitude Modulation) using bridge driver

Data transmission by Amplitude Modulation with externally adjustable modulation index using single ended driver

Multiple transponder protocol compatibility (Ex: EM400X, EM4050, EM4150, EM4070, EM4170, EM4069….)

Sleep mode 1µA

USB compatible power supply range

40 to +85°C temperature range

Small outline plastic package SO16

Applications

Car immobiliser

Hand held reader

Low cost reader