Reader Structure And Interface Explanation; Reader Structure Explanation - Marktrace MR6221 User Manual

◢MR62XX Serial UHF reader user manual（Ver 1.0）◣

3 Reader Structure and Interface Explanation

3.1 Reader Structure Explanation

1、 Reader circuit function
4V LDO
5V LDO
3.3V LDO
12V-5.5V
DC/DC
Step-
down
circuit
Power
Floor5/7, Block D,Changyuan New Material Port, No 2 Central 1st Hi-tech Av., Nanshan Shenzhen, P.
E-mail：technical@marktrace.com
PLL
frequency
generator
Active low
pass
filter
Micro controller
RS232 RS485
interface interface
chip
Address：
R.C.
Post：518057
Phone：0755-2654 6392
power
amplifier
Capacitor
Analog
switch
GPIO drive
chip
DB15
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Website：www.marktrace.com
12
90 degree transmission
line
Diode passive mixing
Differential
amplification
comparator
Hardware
protocol stack
network chip
RJ45