
MITSUBISHI ICs (Monitor)
M52745SP
BUS CONTROLLED 3-CHANNEL VIDEO PREAMP FOR CRT DISPLAY MONITOR
1
DESCRIPTION
M52745SP is semiconductor integrated circuit for CRT display
monitor.
It includes OSD blanking, OSD mixing, retrace blanking, wide band
amplifer, brightness control, uniformity function.
Main/sub contrast and OSD adjust function can be controlled by I
2
C
bus.
FEATURES
Frequency band width: RGB.............................200MHz (at -3dB)
OSD..............................................80MHz
Input
:RGB.............................................................0.7V
P-P
(typ.)
OSD..........................................3V
P-P
minimum (positive)
BLK (for OSD)..........................3V
P-P
minimum (positive)
Retrace BLK.............................3V
P-P
minimum (positive)
Output :RGB..........................................................5.5V
P-P
(max.)
OSD..............................................................5V
P-P
(max.)
Main contrast and sub contrast can be controlled by I
2
C bus.
Include internal and external pedestal clamp circuit
STRUCTURE
Bipolar silicon monolithic IC
APPLICATION
CRT display monitor
RECOMMENDED OPERATING CONDITION
Supply voltage range......................11.5 to 12.5V (V7, V12, V25, V29,V32)
4.5 to 5.5V (V17)
Rated supply voltage..................................12.0V (V7, V12, V25, V29,V32)
5.0V (V17)
MAJOR SPECIFICATION
Bus controlled 3ch video pre-amp with OSD mixing function and
retrace blanking function
PIN CONFIGURATION (TOP VIEW)
OSD BLK IN
INPUT(R)
OSD IN(R)
GND
INPUT(G)
OSD IN(G)
INPUT(SOG)
OSD IN(B)
OUTPUT(R)
EXT FEED BACK(R)
OUTPUT(B)
EXT FEED BACK(B)
SDA
SCL
CLAMP PULSE IN
Outline 32P4B
1
4
3
2
5
6
9
10
11
12
13
14
7
8
15
16
17
18
M
PRELIMINARY
Some parametric limits are subject to change.
32
31
28
27
26
25
24
23
30
29
22
21
20
19
GND
GND
OUTPUT(G)
GND
BRIGHTNESS
VCC 12V
VCC 12V(R)
VCC 12V(G)
VCC 12V(B)
EXT FEED BACK(G)
RETRACE BLK IN
ABL IN
VCC 5V
NC
INPUT(B)
VCC 12V
SOG SEP OUT