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ATA5279C Datenblatt(PDF) 2 Page - ATMEL Corporation

Teilenummer ATA5279C
Bauteilbeschribung  Antenna Driver for Multiple Antennas
PDF  37 Pages
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Hersteller  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATA5279C Datenblatt(HTML) 2 Page - ATMEL Corporation

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ATA5279/ATA5279C [DATASHEET]
9125P–RKE–05/14
2
1.
Description
The Atmel® ATA5279 is an LF coil driver IC intended for passive entry/-go (PEG) systems. It can drive up to six low-
frequency-antennas (i.e., coils) to provide a wake-up and initialization channel to the key fob.
Figure 1-1. Block Diagram
Oscillator
Internal Supply
POR, BG, UV/OV
Control Logic
Communication
Protocol Handling
DC
DC
Boost
Controller
LF Data Buffer
SPI
PGND
VDS
A4P
A6P
A5P
A1P
A3P
A2P
A1N
A3N
A2N
VL
VCC
IRQ
BCNT
MACT
NRES
VIF
MISO
MOSI
S_CLK
S_CS
OSCO
OSCI
VS
RGND
VSHS
CINT
AGND
Reference
Sine Wave
Generator
Driver Stage
Control
Zero Cross
Detector
Return Line
Driver
HP 1-3
Integrator
Sample
and Hold
LP 1-3
A4N
A6N
VSHF
A5N



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