EM4095
125KHz-134 KHz, Read write analog front end for RFID basestation |
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Datasheet
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DataSheet
367 Kb
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| 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.
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| 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: EM4102, EM4200, EM4450 and EM4205/EM4305)
• Sleep mode consumption 1µA
• USB compatible power supply range
• -40 to +85°C temperature range
• Small outline plastic package SO16
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| Applications |
Car immobiliser
Hand held reader
Low cost reader
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| Applications notes |
| • FAQ about EM4095 R/W Analog Front End |
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AN403
83 Kb |
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| • EM4095 Application Note |
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AN404
350 Kb |
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| • U2270B replacement by EM4095 reader chip |
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AN604005
440 Kb |
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| Tools |
EM4095 Hardware Environment Calculation Tool
Use this excel spreadsheet to calculate the components needed for use in conjunction with EM4095
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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
Please click on the pdf file to view the fact sheet.
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782 Kb |
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