READ/WRITE ANALOG FRONT END IC WITH SERIAL ΜC INTERFACE FOR USAGE IN 125/134.2 KHZ RFID BASESTATION APPLICATIONS - ULTRA-LOW POWER
The EM4097 (previously named P4097) chip is a CMOS integrated transceiver circuit intended for use in an RFID basestation to perform the following functions:
- Antenna driving with carrier frequency to transfer energy to the transponder
- Data transfer to writable transponder by amplitude modulation (ASK) of the field (100% modulation ratio, called OOK, “on”-“off” keying)
- Data transfer from transponder by amplitude- or phase demodulation (ASK or PSK)
- μC Interface to communicate with a microprocessor
EM4097 Solutions:
Animal ID reader
Hand held Low Frequency reader
EM4097 Features:
Integrated PLL system to achieve self adaptive carrier frequency to antenna resonant frequency
Chip can be forced to run with external clock, division ratio 32
100kHz to 150kHz carrier frequency range
Direct antenna driving using bridge driver
Data transmission by OOK (100% Amplitude Modulation) using bridge driver
Multiple transponder protocol compatibility, (Ex.: EM4102, EM4200, EM4450 and EM4205/EM4305)
Two sampling points for demodulation, allowing extended system tolerances
Serial μ interface for diagnosis and status control
Very low sleep mode current consumption of 1μA typically
USB compatible power supply range
-40 to +85°C automotive temperature range
Small outline plastic package SO16 |
