U2270B

` Carrier frequency fosc 100 KHz 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 5-V regulated voltage
` Optimized for car immobilizer applications
` Tuning capability
` Microcontroller-compatible interface
` Low power consumption in standby mode
` Power supply output for microcontroller

· Car immobilizers
· Animal identification
· Access control
· Process control
· Further industrial applications

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 automotive IC for IDIC[ *) read-write base stations
The U2270B is a bipolar integrated circuit for read-write base stations in contactless identification and immobilize  systems.

The U2270B 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 and TK5560-PP transponders.