(China (Mainland))
Product Summary
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-specific distances. The U2270B also includes all signal-processing circuits which are necessary to transform the small input signal into a microcontroller-compatible signal.
Parametrics
U2270B absolute maximum ratings: (1)Operating voltage, pi 12, VBatt: VS to 16 V; (2)Operating voltage, pin 8, 9, 10, 11, 14, VS, VEXT, DVS, Coil; (3)1, Coil 2: -0.3 to 8 V; (4)Range of input and output voltages, pin 3, 4, 5, 6, 15 16; (5)2 and 13, VIN, VOUT: -0.3 to VS + 0.3V; pin 2 and 13: -0.3V to VBatt; (6)Output current, pin 10, IEXT: 10 mA max; (7)Output current, pin 2, IOUT: 10 mA max.
Features
U2270B features: (1)Carrier Frequency fosc 100 kHz - 150 kHz; (2)Typical Data Rate up to 5 kbaud at 125 kHz; (3)Suitable for Manchester and Bi-phase Modulation; (4)Power Supply from the Car Battery or from 5-V Regulated Voltage; (5)Optimized for Car Immobilizer Applications; (6)Tuning Capability; (7)Microcontroller-compatible Interface; (8)Low Power Consumption in Standby Mode; (9)Power-supply Output for Microcontroller.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||
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 U2270B |
Other |
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Data Sheet |
Negotiable |
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U2270B-MFP |
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IC RFID BASEREADER 125KHZ 16SOIC |
Data Sheet |
Negotiable |
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U2270B-MFPG3 |
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IC BASEREADER RFID 125KHZ 16SOIC |
Data Sheet |
Negotiable |
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U2270B-MFPG3Y |
Atmel |
RF Wireless Misc Base Station |
Data Sheet |
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U2270B-MFPY |
Atmel |
RF Wireless Misc Base Station |
Data Sheet |
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