U2270B Read / Write Base Station IC Description IC for IDIC® *) read-write base stations The U2270B is a bipolar integrated circuit for 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 automotivespecific distances.
It also includes all signal-processing circuits which are necessary to form the small input signal into a microcontroller-compatible signal.
The U2270B is well suitable to perform read operations with e5530-GT and TK5530-PP transponders and also performs read-write operations with TK5550-PP ...

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