M52738P Datasheet, PDF (1/3 Pages) Mitsubishi Electric Semiconductor – 3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING

MITSUBISHI ICs (Monitor)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
M52738P
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING
DESCRIPTION
The M52738P is semiconductor integrated circuit for CRT display
monitor.
It includes OSD blanking function, OSD mixing, Wide-band
amplifier, Main and sub contrast controls, Brightness control
function.
FEATURES
• Frequency Band Width : RGB............................130MHz (at -3dB)
OSD.............................................80MHz
Input :RGB.............................................................0.7VP-P (typ.)
OSD.......................................1.6VP-P minimum (positive)
OSD BLK...............................1.6VP-P minimum (positive)
Retrace BLK........................1.2VP-P maximum (negative)
Output :RGB...............................................................4VP-P (min.)
OSD...............................................................4VP-P (min.)
• Contrast and brightness can be controlled with a main control.
The Main control changes contrast or brightness of 3-channels
simultaneously. The sub control changes contrast of each
channel independently.
STRUCTURE
Bipolar silicon monolithic IC
PIN CONFIGURATION (TOP VIEW)
OSD IN (R) 1
OSD IN (G) ₂
OSD IN (B) 3
OSD BLK IN 4
INPUT (R) 5
VCC1 6
GND 7
INPUT (G) 8
VCC1 9
GND 10
INPUT (B) 11
VREF 12
MAIN CONTRAST ₁₃
OSD ADJ 14
28 SUB CONTRAST (R)
27 SUB CONTRAST (G)
26 SUB CONTRAST (B)
25 BRIGHTNESS
24 HOLD (R)
23 OUTPUT (R)
22 VCC2
21 GND
20 OUTPUT (G)
19 HOLD (G)
18 OUTPUT (B)
17 HOLD (B)
16 BLK IN
15 CP IN
Outline 28P4
APPLICATION
CRT display monitor
RECOMMENDED OPERATING CONDITION
Supply voltage range....................................................11.4 to 12.6V
Rated supply voltage................................................................12.0V
BLOCK DIAGRAM
SUB
CONTRAST (G) BRIGHTNESS
SUB
SUB
OUTPUT (R)
CONTRAST (R) CONTRAST (B) HOLD (R)
VCC2
28
27
26
25
24
23
22
GND
HOLD (G)
HOLD (B)
CP IN
OUTPUT (G) OUTPUT (B)
BLK IN
21
20
19
18
17
16
15
R AMP
R SUB
CONTRAST
R
CONTRAST
R
OSD MIX
G AMP
G SUB
CONTRAST
G
CONTRAST
G
OSD MIX
B AMP
B SUB
CONTRAST
B
CONTRAST
B
OSD MIX
1
2
3
4
5
6
OSD IN (G)
OSD BLK IN
VCC1
OSD IN (R)
OSD IN (B)
INPUT (R)
7
8
9
INPUT (G)
GND
VCC1
10
11
12
13
14
GND
VREF
OSD ADJ
INPUT (B) MAIN CONTRAST
1