ATA5279C_14 Datasheet, PDF (1/37 Pages) ATMEL Corporation – Antenna Driver for Multiple Antennas

ATA5279/ATA5279C
Antenna Driver for Multiple Antennas
DATASHEET
Features
● Six connections for series-resonant LF coil antennas
● Drives up to 1A peak current on the first three channels and up to 700mA peak on
the second three, largely independent of the battery voltage
● On-off-keyed data modulation with up to 5.7Kbit/s (manchester coded)
● Sinusoidal-like output signal for superior EMC behavior
● 20 selectable steps for current regulation for field strength measurement (RSSI)
● Output driver stages are protected against electrical and thermal overload
● Very low power-down current consumption
● SPI interface for easy microcontroller bus connection
● LF data buffer to minimize microcontroller’s CPU load during a data transmission
● Small outline package: QFN48, 7mm × 7mm
9125P-RKE-05/14