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ATA5278 Datasheet Stand-alone Antenna Driver

Manufacturer: Atmel (now Microchip Technology)

General Description

The ATA5278 device is an integrated BCDMOS antenna driver IC dedicated as a transmitter for Passive Entry/Go (PEG) car applications and for other hands-free access control applications.

It includes the full functionality of generating a magnetic LF field in conjunction with an antenna coil to transmit data to a receiver in a key fob, card or transponder.

A microcontroller can access the chip via a bi-directional serial interface.

Key Features

  • SPI for Microcontroller Connection with Up to 1 Mbit/s Internal Data Buffer for Timing-independent Data Transmission Programmable Driver Current Regulation One-chip Antenna Driver Stage for 1A Peak Current LF Baud Rates Between 1 kbaud and 4 kbaud Quick Start Control (QSC) for Fast Oscillation Build-up and Decay Timing Integrated Oscillator for Ceramic Reson.

ATA5278 Distributor