MCP-601 Operator’s Manual
Magni Systems, Inc.
18
3. BLOCK DIAGRAM DESCRIPTION
Fig 3.1 MCP-601 Operational Block Diagram
MCP-601 Block Diagram Descriptions
Graphics Input (DVI or VGA)
GRAPHICS INPUT SELECTION:
The Graphics input can be selected from the analog VGA or the digital DVI inputs. The VGA analog input is
digitized into a digital format. The DVI digital input remains in the digital form throughout processing to
minimize distortion in the graphics conversion process. Thereby it provides the most accurate conversion and
color keying. The DVI input is terminated internally while the VGA input has an active loop-through monitor
output.
GRAPHICS BACKGROUND:
The graphics re-sizer puts in a BLACK background color around the graphics when the graphics size is
smaller than the video screen size.
NORMAL or UNDERSCAN OUTPUT:
The graphics re-sizer can be set to exactly match the video screen for broadcast output or be set to underscan
so that all the contents can be displayed on an over-scanned picture monitor.
MAGNI PORT SELECTION:
A portion of the Graphics screen can be selected to go to full screen video. This can be set so that there is one
to one match of the pixels between the graphics and the scan converted video giving the least possible
distortion in the conversion.
ANA LOG
SWI TCHE R/
DEC ODER /
GEN LOCK
ANA LOG
BUF FERS
/CL AMP
DV I
INP UT
V GA
IN PUT
BUF FERS
GRA PHIC S
RES IZER
GRA PHIC S
TO DIGI TAL
VID EO
CON VERT ER
K EY
COL OR
MEM ORY
AL PHA
KEY
MEM ORY
KEY COM PARE /
MIX CON TROL
V IDEO
RES IZER
S WITC HER/
DIG ITAL MIX ER
DI GITA L
TO
AN ALOG
ENC ODER
ANA LOG
MIX ER/
OUT PUT
BUF FERS
SDI KEY
OUT PUT
SDI VID EO
OU TPUT
ANA LOG KEY
OUTP UT
ANA LOG
VID EO
OUT PUT
VGA
MON ITOR
OUT PUT
VG A
INP UT
DV I
INP UT
REF EREN CE/
COM POSI TE
VIDE O
INPU T
ANA LOG
VI DEO
IN PUT
S DI
VID EO
INP UT