EM4325 Coin Cell Reference Design Fact Sheet

FACT SHEET | EM4325
Subject to change without notice
4325-FS2, Version 1.1, 25-May-15
Copyright © 2015, EM Microelectronic-Marin SA
www.emmicroelectronic.com
EM4325 Coin Cell
Reference Design
General Description
Theoretical RF Sensitivity and Read
Range
The EM4325 Coin Cell Reference Design is an easy interface to get
started with the multi-purpose EPC gen2 IC EM4325. It provides an
easy way to demonstrate three specific use cases with a very small
tag form factor (38mm of diameter). There are
Parameter
1) Passive tag with temperature reading on demand
2) Passive tag with tamper detection and temperature reading on
demand
3) BAP tag with tamper detection, temperature monitoring, and alarm
indicators
Starting from these three simple examples, the gerber file can be
quickly adapted to fit the other application use cases of the EM4325.
Frequency (MHz)
867
915
IC Sensitivity
(dBm)
-28.0
-28.0
Inlay Sensitivity
(dBm)*
-18.55
-17.7
Read Range
(EU / NA)*
24.3’ (7.4m)
29.3’ (8.9m)
*Theoretical inlay sensitivity and read range for the
0.010" reference antenna design.
Option Available
A complete design documentation and the production gerber files are
available on the EM website under the support page of the EM4325
for free.
Two options are available on request. Please use the
exact reference name when ordering.
Please contact emdirect@emmicroelectronic.com for more
information.
Reference
Description
EM4325CoinCellV1
Antenna reference design
adapted for a 0.25mm
thick PCB
EM4325CoinCellV2
Antenna reference design
adapted for a 1.6mm
thick PCB
Tag Overview
To
Antenna
Connuity Loop
for
Tamper Detecon
1
ANT+
2
AUX
VSS
8
VBAT
7
EM4325
3
P0_MOSI
P3_CS
6
Temperature Alarm Indicator
4
P1_MISO
P2_SCLK
5
Tamper Alarm Indicator
No Alarms (all OK) Indicator