EM4095 - 125KHz-134 KHz, Read write analog front end for RFID basestation
DataSheet
General 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 150kHz carrier frequency range
- Direct antenna driving using bridge drivers
- Data transmission by OOK (100% Amplitude Modulation) using bridge driver
- Externally adjustable modulation index
- Multiple transponder protocol compatibility (Ex: EM4100, EM4102, EM4150, EM4170, EM4069.)
- Sleep mode consumption 1µA
- USB compatible power supply range
- -40 to +85°C temperature range
- Plastic package SO16 or PSOP2 16
Applications
- Car immobiliser
- Hand held reader
- Low cost reader
| Tools |
EM4095 Hardware Environment Calculation Tool
Use this excel spreadsheet to calculate the components needed for use in conjunction with EM4095
 |
192 Kb |
EM4095 RFID Demo Reader
This 125kHz RFID reader supports the majority of EM Microelectronic's low freqency transponder ICs. The development reader serves as a reference design for reader manufacturers and comes with:
- Hardware schematics
- PCB Layout Gerber Files
- Microcontroller source code (easily portable C Language)
- PC software (allowing the user to operate with a large selection of RFID tags)
export OrCAD
|