EM4298 Fact Sheet

EM MICROELECTRONIC - MARIN SA
EM4298
RFID UHF Reader Decoder Chip
Description
Typical Applications
The EM4298 is a single chip decoder which enables a
fast and cost-effective RFID UHF reader design. It
supports all the air interfaces of the EM UHF RFID tags
product range.
The total RFID UHF reader is built using the EM4298, an
analog RF front-end with its antenna and a
microcontroller for the supervision of the operation of the
reader and its interconnection with the network.
The microcontroller’s function is to remain a gateway to
the upper level of the application:
• interface to the networking level,
• configure macro-functions in the decoder chip such
as Inventory, Masked Inventory, Addressed Write,
Addressed Read memory, Addressed Kill (chip
permitting), Security functions and demand the
macro-functions execution.
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RF
TX / RX
AGC
EM4298
Microcontroller
Decoder
chip
Package
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TSSOP28
Features
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Supports all EM RFID UHF tags air interfaces:
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EM4122 (iP-X RO)
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EM4444 (iP-X RW)
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EM4223 (ISO18000-6A ; FST)
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EM4324 (ISO18000-6C)
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ISO18000-6 type A, B and C (EPC C1G2)
communication standard compliant
Requires only the addition of RF front-end and a
cheap uC supervision
Software configuration of the forward and return link
data-rates
Buffer one word up to 552 bits
Reset command on the Command bus
Cost effective
°
°
-40 C to +85 C operating temperature range
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Networking
Wireless communication
Low cost multi-protocol UHF RFID reader devices
Hand-held RFID reader devices
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Benefits
Chip Interfaces
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Analog RF front-end
RX: 2 pins I and Q demodulator input (digital)
TX: 1 pin modulator output
RF ON / OFF
TX ACTIVE
Microcontroller
8 bit asynchronous Data Bus bi-directional
4 bit address Bus
3 bit control bus – csn, rdn, wen
1 bit interrupt
External 16MHz or 20MHz or 24MHz clock
Power supply 3.0 to 3.6V
Copyright © 2007, EM Microelectronic-Marin SA
Subject to change without notice
Rev. A, 11/07
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Low cost single chip decoder solution to build RFID
UHF reader
Air interface selectable by microcontroller
Development kit available
Anticollision algorithm supported
ePC C1G2 bit rate upto 640kbps supported
Statistics of errors on reception
Phone: +41.32.755-5111, Fax: +41.32.755-5403
www.emmicroelectronic.com
info@emmicroelectronic.com