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ATA5277 fiches techniques PDF

ATMEL Corporation - STAND-ALONE ANTENNA DRIVER

Numéro de référence ATA5277
Description STAND-ALONE ANTENNA DRIVER
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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ATA5277 fiche technique
Features
Programmable Driver Current Regulation
Antenna Driver Stage for 1 A Peak Current
LF Baudrates between 1 kbaud to 8 kbaud
Integrated Oscillator for Ceramic Resonators
Two Inputs for Push-button Switches
Bi-directional Single-wire Interface
Diagnosis Function and Overtemperature Protection
Quick Start Control (QSC) for Fast Oscillation Build-up and Decay Timing
Operation Temperature -40°C to +85°C
Carrier Frequency Range from 100 kHz to 150 kHz
Amplitude Shift Keying (ASK) Modulation
Phase Shift Keying (PSK) Modulation
Power Supply Range 7 V to 16 V Direct Battery Input (6 V and 28 V with Limited
Function Range)
EMI and ESD According to Automotive Requirements
Highly Integrated — Less External Components Required
Applications
Car Access
Benefits
Dedicated for Decentralized Systems
Constant Magnetic Field Strength
Electrostatic sensitive device.
Observewww.DataSheet4U.com precautions for handling.
Stand-alone
Antenna Driver
ATA5277
Preliminary
Description
The circuit is an integrated BCDMOS antenna driver IC dedicated as a transmitter for
Passive Entry/Go (PEG) car applications and for other handsfree access control
applications.
It includes the full functionality to generate a magnetic LF field in conjunction with an
antenna coil to transmit data to a receiver in a key fob, card or transponder. The trans-
mission can be controlled via an one wire I/O interface (DIO) by an external control
unit.
Rev. 4669B–RKE–10/03

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