3. DS80054 Mainboard Hardware Principle Diagram
DSP
Network
(
RTL8201
)
TW2866
(
US1
)
FLASH
DDR
∏
SP491
SGM9111
UTP
Interface
USB
VGA
Interface
VOUT
Interface
SATA
interface
LVC07A
+
6303
RS232
interface
RS485
interface
Audio in
Video in
Audio out
AOUTinterface
Diagram1.1
DS80054 Hardware Principle Diagram
Note
:
TW2866 (US1) support 1 road audio and 4 road video input, voice talkback Line In input
and AOUT output
VGA signal output directly from KY2010 chip, the external circuit by 6303
control VGA output amplification
VOUT signal directly from KY2010 chip output, the external circuit control by SGM9111
VOUT signal amplifier output
no alarm input/out of modules