Getac Technology Corporation ZX70U Manual Do Utilizador
AS3993 – AN13 – Received Signal Strength Indicator (RSSI)
www.ams.com
Revision 2.0 / 6/22/12
page 2/17
1. Introduction
The FERMI Reader is a small form factor and low costs EPC Class 1 Gen 2 UHF RFID
demonstration reader system. Leveraging AS3993 UHF RFID Reader IC, provides close to the
industry’s lowest BOM cost, best in class power consumption with the least amount of
complexity.
Second only to ams FERMI design the low reader BOM enables UHF RFID markets that have
previously been out of reach due to cost restraints. With regards to overall cost vs. performance
the FERMI UHF RFID demo reader is unmatched in the industry.
With an external PA delivering up to 22 dBm, it is ideally suited for those applications that have
similar cost constraints but require that extra power
The FERMI demo reader comes in two parts namely the analogue (reader) and digital
(controller) parts. The user can separate the two stacked boards to fully prove out their own RF
and digital parts. With this set up it also means the user can evaluate the suitability of RFID in
their current system.
The reader portion is designed such that it can be easily connected to a host MCU via SPI. The
high level of integration found on the AS3993 UHF RFID Reader IC allows for minimal code
loading and quick implementation.
The designs come with free, fully portable code and all Gerber data and schematics. This allows
for a quick, trouble free design in.