ata5277-pcq ATMEL Corporation, ata5277-pcq Datasheet

ata5277-pcq

Manufacturer Part Number

ata5277-pcq

Description

Stand-alone Antenna Driver

Manufacturer

ATMEL Corporation

Datasheet

1.ATA5277-PCQ.pdf (20 pages)

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Features

•

Applications

•

Benefits

•

Electrostatic sensitive device.

Observe precautions for handling.

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.

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

Car Access

Dedicated for Decentralized Systems

Constant Magnetic Field Strength

Stand-alone

Antenna Driver

ATA5277

Preliminary

Rev. 4669B–RKE–10/03

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