The U2270B is an IC for IDIC® read/write base stations in contactless identification and immobilizer systems.
The IC incorporates the energy-transfer circuit to supply the transponder. It consists of an on-chip power supply, an oscillator, and a coil driver optimized for automotive-spe cific distances. It also includes all signal-processing circuits which are necessary to transform the small input signal into a microcontroller-compatible signal.
Features
• Carrier Frequency fosc 100 kHz to 150 kHz
• Typical Data Rate up to 5 Kbaud at 125 kHz
• Suitable for Manchester and Bi-phase Modulation
• Power Supply from the Car Battery or from 5V Regulated Voltage
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