Table of Contents
Advertisement
GM5020
MC68HC705BD7B
The gm5020 is a graphics processin g IC providing high-quality images for LCD monitors
and other pixelated displays. It combines a triple ADC, a DVI compliant TMDS receiver, a
high quality zoom and shrink scaling engine, frame rate conversion, an on-screen display
(OSD) controller, a microprocessor and many other functions in a single device. This high
level of integration enables simple, flexible, cost-effective solutions featuring fewer required
components.
The gm5020 operat es at frequencies up to 160 MHz; ideal for dual-interface (analog and
digital) LCD monitors up to SXGA resolutions.
g
m
5
0
2
0
S
y
s
t
e
m
g
m
5
0
2
0
S
y
s
t
e
m
Figure 1 below shows a typical du al interface LCD monitor system based on the gm5020.
Designs based on the gm5020 have reduced system cost and simplified hardware and
firmware design because only a minimal number of components are required in the system.
The chip can be used in a variety of systems, ranging from 'single-ch assis' solutions for XGA
and SXGA monitors with no frame store memory, up to high-end XGA and SXGA monitors
featuring a fram e store memo ry and video input.
+12V DC
Factor y
Por t
D
e
s
i
g
n
E
x
a
m
p
D
e
s
i
g
n
E
x
a
m
p
Figure 1.
gm5020 System Design Example
XTAL
E-EDID
EPR OM
E-EDID
EPR OM
Video
Decoder
(optional )
+2.5V
Po wer
+3.3V
Supp ly
5V
12V
l
e
l
e
SDRAM
(optional )
gm5020
Host
Controller
Interface
Micro
Keypad
Controller
--14--
Backlight
Hide quick links:
Advertisement
Table of Contents
