User's Guide Part 1

CHAPTER 1 INTRODUCTION
NANOSCANNER READER USERGUIDE • DOC ??? 6
© 2003 Alien Technology™
Reader Block Diagrams
Modulation Switch
LNA
Pi
Pad
Pi
Pad
10.7 MHz
Band Pass
Filter
10.7 MHz Band
Pass Filter
Low
Pass
Filte r
Low
Pas s
Filter
2402 - 2480 MHz Source
Tran s m it Ant e n n a
Receive Antenna
90 degrees
I Channel
Q channel
10.7MHz IF Source
Lattice
Amp/Filter
Lattice
Amp/Filter
From DSP
Q to DSP
I to DSP
2450MHz Reader Front End
2450MHz Reader Logic Blocks
TMS320C5402
Digital
Signal
Processor
RS-232
Standard
Serial
Port
Rabbit
LAN TCP/IP
Interface
(Optional)
Optically Isolated
RS-485
(Optional)
Power Control Circuitry
Digital I/O Signal Block
256KHz 12-bit A/D
256 KHz 12-bit A/D
Mod O u t
I channel
Source
Frequency
Q channel
V1
V2
V3
12VDC In
Power Control