ANALOG SIGNAL INPUT and EDID
This product uses the internal function of Mascot V (U1) as a signal detector in order to support separate SYNC
.
The
analog input Horizontal and Vertical Synchronal signals
pass through the Schmitt trigger buffer U4 to stabilize
then input to
Mascot U1 pin38 VGA_VSYNC, pin39
VGA_HSYNC or pin40 SOGI and the image processing.
Th
en
Mascot will detect the signal type if it is separate
SYNC, composite SYNC or SOG. MPU (U6) reads the
input signal type from
IIC protocol and does the correct
procedure to generate the proper signals to the whole
system.
24LC02 (U14) chip provide DDC1/2B
¥
with Analog Plug&Play, and the DDC data format is EDID v1.3.
See FIG1-2.
FIG1-2
ViewSonic Corporation
10
Confidential
-
-
Do
Not Copy
VG1
5
0m
/mb
Summary of Contents for VG150m-1
Page 9: ...3 Disassembly Assembly Instructions ViewSonic Corporation 6 Confidential Do Not Copy VG150m mb...
Page 22: ...FIG3 8 Mascot function block ViewSonic Corporation 19 Confidential Do Not Copy VG150m mb...
Page 25: ...FIG4 2 MPU Control Block ViewSonic Corporation 22 Confidential Do Not Copy VG150m mb...
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Page 40: ...8 PCB Layout ViewSonic Corporation 37 Confidential Do Not Copy VG150m mb...
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