参数资料
型号: LC74798M
元件分类: 画面叠加
英文描述: ON-SCREEN DISPLAY IC, PDSO30
封装: 0.375 INCH, MFP-30
文件页数: 30/32页
文件大小: 322K
代理商: LC74798M
System Block Diagram
No. 5833-7/32
LC74798, 74798M
HSYNC
peak
hold
(HSYNC
slicing)
Data
output
buffer
Output
control
Data
peak
hold
circuit
(data
slicing)
Pedestal
clamp
Sync
discrimination
Composite sync
signal
separation
control
Data
slicer
Serial
parallel
converter
8-bit
latch
+
command
decoder
Horizontal
character
size
register
Vertical
character
size
Horizontal
size
counter
Vertical
size
counter
Horizontal
dot
counter
Horizontal
display
position
Vertical
display
position
Vertical
dot
counter
Blinking
and
reverse
video
control
Blinking
and
reverse
video
control
Display
control
register
RAM
write
address
counter
Display
RAM
Decoder
Character
output
control
Background
control
Video
output
control
Vertical
display
position
Horizontal
display
position
Line
control
counter
Decoder
Font
ROM
Shift
register
Character
control
counter
Timing
generator
Sync
signal
generator
AFC
circuit
for
character
display
AFC
circuit
data
slicing
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