MITSUBISHI ICs (Monitor)
M52738P
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING
1
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
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.............................................................0.7V
P-P
(typ.)
OSD.......................................1.6V
P-P
minimum (positive)
OSD BLK...............................1.6V
P-P
minimum (positive)
Retrace BLK........................1.2V
P-P
maximum (negative)
Output :RGB...............................................................4V
P-P
(min.)
OSD...............................................................4V
P-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
APPLICATION
CRT display monitor
RECOMMENDED OPERATING CONDITION
Supply voltage range....................................................11.4 to 12.6V
Rated supply voltage................................................................12.0V
PIN CONFIGURATION (TOP VIEW)
28
25
26
27
1
4
3
2
24
5
23
6
20
9
19
10
18
11
17
16
12
13
14
15
7
8
22
21
Outline 28P4
OUTPUT (R)
SUB CONTRAST (B)
BRIGHTNESS
HOLD (G)
SUB CONTRAST (G)
HOLD (R)
V
CC2
OSD IN (B)
V
CC1
OSD BLK IN
V
CC1
INPUT (R)
OSD IN (G)
GND
INPUT (G)
OSD IN (R)
SUB CONTRAST (R)
OUTPUT (G)
GND
GND
BLK IN
CP IN
HOLD (B)
MAIN CONTRAST
OSD ADJ
V
REF
INPUT (B)
OUTPUT (B)
M52738P
BLOCK DIAGRAM
R AMP
R SUB
CONTRAST
R
OSD MIX
G AMP
G SUB
CONTRAST
G
OSD MIX
B AMP
B SUB
CONTRAST
B
OSD MIX
OUTPUT (R)
SUB
BRIGHTNESS
HOLD (G)
SUB
HOLD (R)
V
CC2
OSD IN (B)
V
CC1
OSD BLK IN
V
CC1
INPUT (R)
OSD IN (G)
GND
INPUT (G)
OSD IN (R)
SUB
OUTPUT (G)
GND
GND
BLK IN
HOLD (B)
MAIN CONTRAST
OSD ADJ
V
REF
INPUT (B)
OUTPUT (B)
CP IN
28
26
27
25
24
20
21
19
17
18
16
15
23
22
1
3
2
4
5
9
8
10
12
11
13
14
6
7
R
CONTRAST
G
CONTRAST
B
CONTRAST
CONTRAST (B)
CONTRAST (G)
CONTRAST (R)
MITSUBISHI ICs (Monitor)
M52738P
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING
2
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Ta=25
°
C, V
CC1
=V
CC2
=12V, unless otherwise noted)
Note 1: The ambient temperature is 25
°
C.
2: The supply voltage is 12V.
3: The direction of a current that flows toward the IC is regarded as plus.
Symbol
Parameter
Ratings
Unit
V
CC
Supply voltage
13
V
P
d
Power dissipation
2000
mW
T
opr
Operating temperature
-20 to 70
°
C
T
stg
Storage temperature
-40 to 150
°
C
V
opr
Recommended operating supply voltage
12
V
V
opr'
Recommended operating supply voltage range
11.4 to 12.6
V
Surge
Electrostatic discharge
±
200
V
Symbol
Parameter
Test
point
Test conditions
Limits
Unit
Min.
Typ.
Max.
I
CC
I
CC
6, 9, 21
No input. Measurement of current
that flows into 6, 9 and 21
-
100
mA
Gmax
Maximum gain
18, 20,
23
18, 20, 23 input VSG, 15 input PG
V13=4V V26, V27, V28=4V
20
dB
Gmax
Relative maximum gain
-
-
0.8
1.0
1.2
dB
V
CR1
Contrast control characteristics
(typical)
18, 20,
23
18, 20, 23 input VSG, 15 input PG
V13=2V V26, V27, V28=4V
14
dB
V
CR2
Contrast control characteristics
(minimum)
18, 20,
23
18, 20, 23 input VSG, 15 input PG
V13=0.25V V26, V27, V28=4V
0.25
V
P-P
V
SCR1
Sub contrast control characteristics
(typical)
18, 20,
23
18, 20, 23 input VSG, 15 input PG
V26, V27, V28=2V V13=4V
15.5
dB
V
SCR2
Sub contrast control characteristics
(minimum)
18, 20,
23
18, 20, 23 input VSG, 15 input PG
V26, V27, V28=0.25V V13=4V
1.1
V
P-P
V
B1
Brightness control characteristics
(maximum)
18, 20,
23
15 input PG
V25=10V
8.5
V
V
B2
Brightness control characteristics
(typical)
18, 20,
23
15 input PG
V25=1V
1.1
V
V
B3
Brightness control characteristics
(minimum)
18, 20,
23
15 input PG
V25=0V
-
-
0.1
V
F
C1
Frequency characteristics 1
(f=50MHz;maximum)
18, 20,
23
18, 20, 23 input SG
0
dB
F
C2
Frequency characteristics 2
(f=130MHz; maximum)
18, 20,
23
18, 20, 23 input SG
-3
-
-
dB
Tr
Video output rise time
18, 20,
23
18, 20, 23 input PG, 15 input PG
3.0
nsec
Tf
Video output fall time
18, 20,
23
18, 20, 23 input PG, 15 input PG
4.0
nsec
V
thCP
Clamp pulse threshold voltage
18, 20,
23
18, 20, 23 input VSG, 15 input PG
1.2
V
OT
r
OSD output rise time
18, 20,
23
1, 2, 3 input PG, 15 input PG
4
nsec
OT
f
OSD output fall time
18, 20,
23
1, 2, 3 input PG, 15 input PG
10
nsec
O
aj1
OSD adjust control (maximum)
18, 20,
23
1, 2, 3 input PG, 15 input PG
V14=4V V26, V27, V28=2V
5
V
P-P
O
aj2
OSD adjust control (minimum)
18, 20,
23
1, 2, 3 input PG, 15 input PG
V14=0V V26, V27, V28=2V
0
V
P-P
OSD
th
OSD input threshold voltage
18, 20,
23
1, 2, 3 input PG, 15 input PG
4 input PG
1.6
V
H
BLK
Retrace BLK characteristics
18, 20,
23
16 input PG
-
-
0.5
V
H
vth
Retrace BLK input threshold voltage
18, 20,
23
16 input PG
1.2
V
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