MITSUBISHI ICs (Monitor)
M52737SP
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING
DESCRIPTION
The M52737SP is a semiconductor integrated circuit amplifies
video signals, having a 3-channel amplifier with a band width of
150MHz. The circuit also features the OSD mixing function.
The circuit is most useful with high-resolution displays that have
OSD, and its function are available for each channel, including OSD
blanking, OSD mixing, retrace blanking, wide-band amplification,
contrast control (main and sub), and brightness control.
BLK IN (FOR OSD)
V
CC1
(B)
INPUT (B)
SUB CONTRAST (B)
OSD IN (B)
GND1 (B)
1
2
3
4
5
6
7
8
9
36 OSD ADJUST
35 OUTPUT (B)
34 V
CC2
(B)
33 HOLD (B)
32 NC
31 GND2 (B)
30 OUTPUT (G)
29 V
CC2
(G)
28 HOLD (G)
27 NC
26 GND2 (G)
25 OUTPUT (R)
24 V
CC2
(R)
23 HOLD (R)
22 NC
21 GND2 (R)
20 BLK IN (FOR RETRACE)
19 BRIGHTNESS
PIN CONFIGURATION (TOP VIEW)
FEATURES
V
CC1
(G)
INPUT (G)
SUB CONTRAST (G)
•
Frequency band width: RGB................................150MHz (3V
P-P
)
OSD..............................................50MHz
Input :RGB.............................................................0.7V
P-P
(typ.)
OSD...............................................3.0V
P-P
min. (positive)
BLK (for OSD)...............................3.0V
P-P
min. (positive)
Retrace BLK..................................3.0V
P-P
min. (positive)
Output :RGB...........................................................4.5V
P-P
(max.)
OSD...........................................................4.5V
P-P
(max.)
To adjust contrast and OSD Adj, for each, two types of controls
are provided, main and sub. With the main control, the contrast or
OSD Adj of the 3-channels can be changed simultaneously. Sub
controls are used to adjust the contrast of a given channel
individually. The control terminals can be controlled by applying a
voltage of 0 to 5V.
The DC power remains stable at the IC output terminal because
a feedback circuit is built in.
M52737SP
OSD IN (G) 10
GND1 (G) 11
V
CC1
(R) 12
INPUT (R) 13
SUB CONTRAST (R) 14
OSD IN (R) 15
GND1 (R) 16
MAIN CONTRAST 17
CP IN 18
•
•
APPLICATION
Display monitor
Outline 36P4E
NC : NO CONNECTION
RECOMMENDED OPERATING CONDITION
Supply voltage range....................................................11.5 to 12.5V
Rated supply voltage................................................................12.0V
BLOCK DIAGRAM
HOLD (R)
OUTPUT (B)
HOLD (B)
GND2 (B)
V
CC2
(G)
NC
OUTPUT (R)
BLK IN (FOR RETRACE)
OSD ADJUST
HOLD (G)
GND2 (G)
V
CC2
(R)
NC GND2 (R)
NC
BRIGHTNESS
V
CC2
(B)
OUTPUT (G)
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
B-ch
BLK
B
Brightness
G-ch
BLK
G
Brightness
R-ch
BLK
R
Brightness
B
AMP
B
Hold
G
AMP
G
Hold
R
AMP
R
Hold
B
OSD Mix
B OSD
Blanking
G
OSD Mix
G OSD
Blanking
R
OSD Mix
R OSD
Blanking
B
Clamp
B
Contrast
G
Clamp
G
Contrast
R
Clamp
R
Contrast
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
BLK IN
INPUT (B)
V
CC1
(G)
GND1 (G)
INPUT (R)
MAIN
SUB
OSD IN
OSD IN (R)
(FOR OSD)
(B)
CONTRAST(G)
CONTRAST
SUB
SUB
V
CC1
(B)
INPUT (G)
CONTRAST(B) GND1 (B)
V
CC1
(R) CONTRAST(R)
GND1 (R)
OSD IN (G)
CP IN
1
MITSUBISHI [ MITSUBISHI ELECTRIC SEMICONDUCTOR ]
