ATA5279_10 datasheet(1/39 Pages) ATMEL

Part #	ATA5279

Description	Antenna Driver for Multiple Antennas

Download	39 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

Logo

1 / 39 page

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

1.

Description

The Atmel® ATA5279 is an LF coil driver IC intended for passive entry/-go (PEG) sys-

tems. 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

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

Antenna Driver

for Multiple

Antennas

Atmel ATA5279

9125I–RKE–09/10

Similar Part No. - ATA5279_10

Manufacturer	Part #	Datasheet	Description
ATMEL Corporation	ATA5279	1Mb / 37P	Antenna Driver for Multiple Antennas

More results

Similar Description - ATA5279_10

Manufacturer	Part #	Datasheet	Description
ATMEL Corporation	ATA5279C	1Mb / 37P	Antenna Driver for Multiple Antennas
	ATA5279	693Kb / 35P	Antenna Driver for Multiple Antennas
	ATA5279	1Mb / 37P	Antenna Driver for Multiple Antennas
	ATA5279N	801Kb / 38P	Antenna Driver for Multiple Antennas
PHOENIX CONTACT	106760	661Kb / 12P	Mobile antennas and antenna cables 2019-06-05
Rohm	BD6934FV	306Kb / 13P	Antenna Driver
Pulse A Technitrol Comp...	W1047	158Kb / 5P	ANTENNAS
Infineon Technologies A...	TLE92104-131	4Mb / 146P	Multiple MOSFET Driver IC Rev. 1.0 2020-09-21
Infineon Technologies A...	TLE92104-232	4Mb / 148P	Multiple MOSFET Driver IC Rev. 1.0 2020-09-21
Pulse A Technitrol Comp...	W3008C	1Mb / 7P	Solutions for Mobile Phone Antennas

More results

ATA5279 Datasheet(PDF) 1 Page - ATMEL Corporation

ATA5279 Datasheet(HTML) 1 Page - ATMEL Corporation

Similar Part No. - ATA5279_10

Similar Description - ATA5279_10

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

Datasheet Download

Link URL