◢
MR62XX Serial UHF reader user manual
(
Ver 1.0
)◣
Address
:
Floor5/7, Block D,Changyuan New Material Port, No 2 Central 1st Hi-tech Av., Nanshan Shenzhen, P.
R.C.
Post
:
518057
Phone
:
0755-2654 6392 FAX
:
0755-2655 3743
:
Website
:
www.marktrace.com
12
3 Reader Structure and Interface Explanation
3.1 Reader Structure Explanation
1
、
Reader circuit function
Micro controller
Hardware
protocol stack
network chip
RJ45
PLL
frequency
generator
power
amplifier
Active low
pass
filter
RS485
interface
chip
RS232
interface
chip
GPIO drive
DB15
Analog
switch
Capacitor
90 degree transmission
line
Diode passive mixing
Differential
amplification
comparator
12V-5.5V
DC/DC
Step-
down
circuit
5V LDO
4V LDO
3.3V LDO
Power