M52734SP Datasheet, PDF (1/13 Pages) Mitsubishi Electric Semiconductor – 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING

MITSUBISHI ICs (Monitor)
M52734SP
3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING
DESCRIPTION
The M52734SP is a semiconductor integrated circuit amplifies
video signals, having a 3-channel amplifier with a band width of
130MHz. 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, wide-band amplification, contrast control
(main and sub), and brightness control.
FEATURES
• Frequency band width: RGB................................130MHz (3VP-P)
OSD..............................................50MHz
Input :RGB.............................................................0.7VP-P (typ.)
OSD...............................................3.0VP-P min. (positive)
BLK ...............................................3.0VP-P min. (positive)
Output :RGB...........................................................4.0VP-P (max.)
OSD...........................................................4.0VP-P (max.)
• To adjust contrast, two types of controls are provided, main and
sub. With the main control, the contrast 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.
APPLICATION
Display monitor
RECOMMENDED OPERATING CONDITION
Supply voltage range....................................................11.5 to 12.5V
Rated supply voltage................................................................12.0V
PIN CONFIGURATION (TOP VIEW)
OSD BLK IN 1
VCC1 (B) 2
INPUT (B) 3
SUB CONTRAST (B) 4
OSD IN (B) 5
GND1 (B) 6
VCC1 (G) 7
INPUT (G) 8
SUB CONTRAST (G) 9
OSD IN (G) 10
GND1 (G) 11
VCC1 (R) 12
INPUT (R) 13
SUB CONTRAST (R) 14
OSD IN (R) 15
GND1 (R) 16
MAIN CONTRAST 17
CP IN 18
36 OSD ADJUST
35 OUTPUT (B)
34 VCC2 (B)
33 HOLD (B)
32 NC
31 GND2 (B)
30 OUTPUT (G)
29 VCC2 (G)
28 HOLD (G)
27 NC
26 GND2 (G)
25 OUTPUT (R)
24 VCC2 (R)
23 HOLD (R)
22 NC
21 GND2 (R)
20 NC
19 BRIGHTNESS
Outline 36P4E
NC : NO CONNECTION
BLOCK DIAGRAM
OUTPUT (B) HOLD (B)
GND2 (B)
VCC2 (G)
NC
OUTPUT (R) HOLD (R)
GND2 (R) BRIGHTNESS
OSD ADJUST VCC2 (B)
NC
OUTPUT (G) HOLD (G)
GND2 (G)
VCC2 (R)
NC
NC
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
B
AMP
B
OSD Mix
B
Brightness
B
Hold
B
Blanking
G
AMP
G
OSD Mix
G
Brightness
G
Hold
G
Blanking
R
AMP
R
OSD Mix
R
Brightness
R
Hold
R
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
OSD
BLK IN
INPUT (B)
OSD IN
(B)
VCC1 (G)
SUB
GND1 (G)
CONTRAST(G)
INPUT (R)
OSD IN (R)
MAIN
CONTRAST
VCC1 (B)
SUB
GND1 (B)
CONTRAST(B)
INPUT (G) OSD IN (G)
VCC1 (R)
SUB
CONTRAST(R)
GND1 (R)
CP IN
1