Block Diagram

Hardware block diagram of TGBS900BA (Base station)
100 ~
240VAC
AC/DC Adapter
100 ~ 240VAC
(50/60Hz)
DC12V
DC/DC Converter IC
U11
(RT8293BHGSP)
VDD_5P5V(5.4V)
Voltage Regulator IC
U13
(TPS79601DCQ)
Voltage Regulator IC
U14
(TPS79601DCQ)
VDD_5V(3.5V)
+3V3(3.3V)
+3V3(3.3V)
+3V3(3.3V)
DC/DC Converter IC
U3
(AP3417CKTR-G1)
DC/DC Converter IC
U3
(AP3417CKTR-G1)
+1P8V(1.8V)
+1V(1.0V)
+3V3(3.3V)
+1V(1.0V)
NC
CON
(J2,J4)
RF Module
Antenna
920.5 ~
923.5Mhz
+3V3(3.3V)
Voltage Supervisor
U10
(LTC2918)
+3V3(3.3V)
VDD_5V(3.5V)
Socket
(J3,J5)
MD1
(SM-RF920-C1)
30MHz XTAL(in the
inside of module)
+1P8V(1.8V)
+3V3(3.3V)
DDR Memory
U6
(MT47H64M16HR)
NAND Flash
U7
(S34ML01G100TF100)
LEDs
MPU
U5
(AT91SAM9G25)
+3V3(3.3V)
RS232 Driver
U8
(SP3232EEN)
10/100Mbps
Ethernet Transceiver
U9
(DM9161BIEP)
BOX Header(J9)
(Debug JTAG)
Power switch
U12(NC)
(TPS2032DR)
Debug CON (P1)
VDD_PHY(2.5V)
NC CON
(J12)
DIP Switch &
Rotary Switch
TGBS900BA
(Base Station) Board Block Diagram Page
2
/
2
Power Source
12MHz XTAL/Y2/SMD3225
32.768kHz XTAL/
Y3/CM200C
RJ45 CON
(J6)