MITSUBISHI M52743SP

MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
DESCRIPTION
M52743SP and M52744SP is semiconductor integrated circuit for
PIN CONFIGURATION (TOP VIEW)
CRT display monitor.
It includes OSD blanking, OSD mixing, retrace blanking, wide band
amplifre, brightness control.
Main/sub contrast and OSD adjust function can be controlled by I 2C
OSD BLK IN
1
36 VCC2
INPUT(R)
2
35 OUTPUT(R)
3
34 EXT FEED BACK(R)
4
33 GND2
FEATURES
GND 1(R)
5
32 OUTPUT(G)
INPUT(G)
6
•
•
•
Frequency band width: RGB.............................150MHz (at -3dB)
OSD..............................................80MHz
Input :RGB.............................................................0.7V P-P (typ.)
OSD..........................................3VP-P minimum (positive)
BLK (for OSD)...........................3VP-P minimum (positive)
Retrace BLK.............................3VP-P minimum (positive)
Output :RGB...........................................................5.5V P-P (max.)
OSD..............................................................5VP-P (max.)
31 EXT FEED BACK(G)
INPUT(SOG)
7
VCC1(G)
8
OSD IN(G)
9
2
Main contrast and sub contrast can be controlled by I C bus.
Include internal and external pedestal clamp circuit.
STRUCTURE
APPLICATION
VCC1(B) 12
RECOMMENDED OPERATING CONDITION
Supply voltage range......................11.5 to 12.5V (V3, V8, V12, V36)
4.5 to 4.4V (V17)
Rated supply voltage..................................12.0V (V3, V8, V12, V36)
5.0V (V17)
MAJOR SPECIFICATION
Bus controlled 3ch video pre-amp with OSD mixing function and
30 MAIN BRIGHTNESS
29 OUTPUT(B)
28 EXT FEED BACK(B)
27 RETRACE BLK IN
26 D/A OUT1
25 D/A OUT2
OSD IN(B) 13
24 D/A OUT3
GND 1(B) 14
23 D/A OUT4
22 GND(5V)
NC 16
21 SDA
VCC (5V) 17
20 SCL
SOG SEP OUT 18
CRT display monitor
1
INPUT(B) 11
ABL IN 15
Bipola silicon monolisic IC
retrace blanking function
GND 1(G) 10
M52743SP/M52744SP
VCC1(R)
OSD IN(R)
bus.
19 CLAMP PULSE IN
Outline 36P4E
NC:NO CONNECTION
2
3
5
9
6
8
INPUT (R)
VCC1 (R) 12V
GND 1(R)
OSD IN (G)
INPUT (G)
VCC1 (G) 12V
7
SOG SEP OUT 18
INPUT (SOG)
CONTRAST (ABL) IN 15
GND 1(B) 14
VCC1 (B) 12V 12
INPUT (B) 11
OSD IN (B) 13
GND 1(G) 10
4
OSD IN (R)
CLAMP PULSE
IN
19
Sync On
GreenSep
CLAMP
CLAMP
CLAMP
SUB CONT
(8bit)
SUB
CONTRAST
SUB CONT
(8bit)
SUB
CONTRAST
SUB CONT
(8bit)
SUB
CONTRAST
33
VCC2=12V GND2
36
1
23 24 25 26
DAC
CLAMP
F/B
AMP
CLAMP
F/B
AMP
CLAMP
F/B
AMP
BUS
I/F
RETRACE
BLANKING
RETRACE
BLANKING
RETRACE
BLANKING
22 GND(5V)
20 SCL
21 SDA
VCC 5V
17 (DIGITAL)
28 EXT FEED BACK (B)
29 OUTPUT (B)
31 EXT FEED BACK (G)
32 OUTPUT (G)
34 EXT FEED BACK (R)
35 OUTPUT (R)
27
30
DAC OUTPUT
FOR CUT-OFF Adj
R SUB CONT 8bit
G SUB CONT 8bit
B SUB CONT 8bit
OSD
LEVEL
4bit
OSD MIX
OSD MIX
OSD MIX
OSD BLK IN
Main
CONTRAST
8bit
MAIN
CONTRAST
MAIN
CONTRAST
MAIN
CONTRAST
RETRACE BLK IN
MAIN BRIGHTNESS
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
BLOCK DIAGRAM
2
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
Symbol
VCC
Pd
Topr
Tstg
Vopr
Vopr’
θjc
Parameter
Supply voltage
Power dissipation
Ambient temperature
Storage temperature
Recommended supply
Voltage range
Case temperature
Ratings
Unit
13.0
2403
-20 to +75
-40 to +150
12.0
10.5 to 12.5
22
V
mW
°C
°C
V
V
°C/W
ELECTRICAL CHARACTERISTICS (VCC=12V, 5V, Ta=25°C, unless otherwise noted)
Symbol
Parameter
Test
point 2,6,11
(s) RGB
in
1 4,9,13
7
19
27
OSD OSD CP in ReT SOG
in
BLK
in
BLK
ICC1
Circuit
current1
IA
a
a
a
ICC2
Circuit
current2
IB
a
a
a
Vomax
Output
dynamic range
OUT
b
SG2
a
a
Vimax
Maximum
input
b
IN
OUT SG2
a
Gv
Maximum
gain
OUT
b
SG1
∆Gv
Relative maximum gain
−
VC1
Main contrast
control
characteristics1
∆VC1
b
SG5
b
SG5
CTL
voltage
BUS CTL (H)
Limits
30 15
Bri- ABL
ght
00H 01H 02H 03H 04H 05H 06H 07H 08H 09H 0BH
Main Sub Sub Sub OSD BLK D/A D/A D/A D/A INT
cont cont cont cont Adj Adj OUT OUT OUT OUT EXT
1
2
3
1
2
3
4
Min. Typ. Max.
FFH FFH FFH FFH 00H
255 255 255 255
0
00H FFH FFH FFH FFH 00H
0
255 255 255 255
0
Unit
−
110 130
mA
a
a
4.0 5.0
a
a
4.0 5.0
−
18
22
mA
b
SG5
a
a
Vari
able 5.0
6.0
8.0
−
VP-P
a
b
SG5
a
a
2.0 5.0
64H
100
1.6
−
−
VP-P
a
a
b
SG5
a
a
2.0 5.0
FFH
255
−
−
−
−
−
−
OUT
b
SG1
a
a
b
SG5
a
a
Main contrast
control relative
characteristics1
−
−
−
−
−
−
−
VC2
Main contrast
control
characteristics2
OUT
b
SG1
a
a
b
SG5
a
a
∆VC2
Main contrast
control relative
characteristics2
−
−
−
−
−
−
−
VC3
Main contrast
control
characteristics3
OUT
b
SG1
a
a
b
SG5
a
a
∆VC3
Main contrast
control relative
characteristics3
−
−
−
−
−
−
−
VSC1
Sub contrast
control
characteristics1
OUT
b
SG1
a
a
b
SG5
a
a
∆VSC1
Sub contrast
control relative
characteristics1
−
−
−
−
−
−
−
OUT
b
SG1
a
a
b
SG5
a
a
Variable
Sub contrast
VSC2
3
Input
control
characteristics2
∆VSC2
Sub contrast
control relative
characteristics2
−
−
−
−
−
−
−
VSC3
Sub contrast
control
characteristics3
OUT
b
SG1
a
a
b
SG5
a
a
∆VSC3
Sub contrast
control relative
characteristics3
−
−
−
−
−
−
−
−
−
2.0 5.0
−
−
2.0 5.0
−
−
2.0 5.0
−
−
2.0 5.0
−
−
2.0 5.0
−
−
2.0 5.0
−
−
16.5 17.7 19.7
−
0.8
C8H
200
1.0
1.2
14.5 16.0 17.5
−
0.8
64H
100
1.0
1.2
8.5 10.0 11.5
dB
−
dB
−
dB
−
0.8
1.0
1.2
−
14H
20
0.2
0.4
0.6
VP-P
−
0.8
1.0
1.2
−
FFH C8H C8H C8H
255 200 200 200
− − − −
FFH 64H
255 100
64H
100
64H
100
− − − −
FFH 14H
255 20
14H
20
14H
20
− − − −
14.8 16.3 17.8
0.8
1.0
1.2
11.1 12.6 14.1
dB
−
dB
0.8
1.0
1.2
−
1.4
1.7
2.0
VP-P
0.8
1.0
1.2
−
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
ELECTRICAL CHARACTERISTICS (cont.)
Symbol
Parameter
Test
point 2,6,11
(s) RGB
in
CTL
voltage
Input
BUS CTL (H)
1 4,9,13
7
19
27
OSD OSD CP in ReT SOG
in
BLK
BLK in
30 15
Bri- ABL
ght
00H 01H 02H 03H 04H 05H 06H 07H 08H 09H
2.0 5.0
C8H C8H C8H C8H 00H
200 200 200 200
0
VMSC
Main/sub
contrast control
characteristics2
OUT
b
SG1
a
a
b
SG5
a
a
∆VMSC
Main/sub contrast
control relative
characteristics2
−
−
−
−
−
−
−
ABL1
ABL control
characteristics1
OUT
b
SG1
a
a
b
SG5
a
a
∆ABL1
ABL control
relative
characteristics1
−
−
−
−
−
−
−
ABL2
ABL control
characteristics2
OUT
b
SG1
a
a
b
SG5
a
a
∆ABL2
ABL control
relative
characteristics2
−
−
−
−
−
−
−
VB1
Brightness
control
characteristics1
OUT
a
a
a
b
SG5
a
a
∆VB1
Brightness
control relative
characteristics1
−
−
−
−
−
−
−
VB2
Brightness
control
characteristics2
OUT
a
a
a
b
SG5
a
a
∆VB2
Brightness
control relative
characteristics2
−
−
−
−
−
−
−
VB3
Brightness
control
characteristics3
OUT
a
a
a
b
SG5
a
a
∆VB3
Brightness
control relative
characteristics3
−
−
−
−
−
−
−
FC1
Frequency
characteristics1
(f=50MHz)
OUT
b
SG3
a
a
a
5V
a
a
∆FC1
Frequency relative
characteristics1
(f=50MHz)
−
−
−
−
−
−
−
FC1’
Frequency
characteristics1
(f=150MHz)
OUT
b
SG3
a
a
a
5V
a
a
∆FC1’
Frequency relative
characteristics1
(f=150MHz)
−
−
−
−
−
−
−
FC2
Frequency
characteristics2
(f=150MHz)
OUT
b
SG3
a
a
a
5V
a
a
∆FC2
Frequency relative
characteristics2
(f=150MHz)
−
−
−
−
−
−
−
C.T.1
Crosstalk 1
(f=50MHz)
2bSG3
OUT(29)
6a
OUT(32)
11a
a
a
a
a
Vari
able 5.0
C.T.1’
Crosstalk 1
(f=150MHz)
2bSG3
OUT(29)
6a
OUT(32)
11a
a
a
a
a
C.T.2
Crosstalk 2
(f=50MHz)
2a
OUT(29)
6bSG3
OUT(35)
11a
a
a
a
C.T.2’
Crosstalk 2
(f=150MHz)
2a
OUT(29)
6bSG3
OUT(35)
11a
a
a
C.T.3
Crosstalk 3
(f=50MHz)
2a
OUT(32)
6a
OUT(35)
11bSG3
a
a
C.T.3’
Crosstalk 3
(f=150MHz)
2a
OUT(32)
6a
OUT(35)
11bSG3
a
a
a
5V
a
5V
a
5V
a
5V
a
5V
a
5V
0BH
Main Sub Sub Sub OSD BLK D/A D/A D/A D/A INT
cont cont cont cont Adj Adj OUT OUT OUT OUT EXT
1
2
3
1
2
3
4
00H FFH FFH FFH FFH 00H
0
255 255 255 255
0
Limits
Unit
Min. Typ. Max.
3.2
3.8
4.4
VP-P
− − − −
0.8
1.0
1.2
−
FFH FFH FFH FFH
255 255 255 255
3.8
4.6
5.4
VP-P
0.8
1.0
1.2
−
2.2
2.7
3.2
VP-P
0.8
1.0
1.2
−
3.3
3.7
4.1
V
-0.3
0
0.3
−
1.5
1.8
2.1
V
-0.3
0
0.3
−
0.7
0.9
1.1
V
-0.3
0
0.3
−
-2.0
0
2.5
dB
-1.0
0
1.0
dB
-3.0
0
3.0
dB
-1.0
0
1.0
dB
-3.0
3.0
5.0
dB
-1.0
0
1.0
dB
−
-25
-20
dB
Vari
able 5.0
−
-15
-10
dB
a
Vari
able 5.0
−
-25
-20
dB
a
a
Vari
able 5.0
−
-15
-10
dB
a
a
Vari
able 5.0
−
-25
-20
dB
a
a
Vari
able 5.0
−
-15
-10
dB
−
−
2.0 4.0
−
−
2.0 2.0
−
−
4.0 5.0
−
−
2.0 5.0
−
−
1.0 5.0
−
−
Va
Vari
ria
able 5.0 ble
−
−
−
Va
Vari
ria
able 5.0 ble
Vari
able 5.0
−
−
FFH
255
FFH FFH FFH 00H
255 255 255
0
00H FFH FFH FFH FFH 00H
0
255 255 255 255
0
4
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
ELECTRICAL CHARACTERISTICS (cont.)
Symbol
Parameter
Test
point 2,6,11
(s) RGB
in
1 4,9,13
7
19
27
OSD OSD CP in ReT SOG
in
BLK
BLK in
30 15
Bri- ABL
ght
BUS CTL (H)
0BH
Main Sub Sub Sub OSD BLK D/A D/A D/A D/A INT
cont cont cont cont Adj Adj OUT OUT OUT OUT EXT
1
2
3
1
2
3
4
Tr
OUT
b
SG1
a
a
b
SG5
a
a
Va
Vari
ria
able 5.0 ble
Tf
Pulse
characteristics2
(4VP-P)
OUT
b
SG1
a
a
b
SG5
a
a
Va
Vari
ria
able 5.0 ble
VthCP
Clamp pulse
threshold
voltage
OUT
b
SG1
a
a
b
SG5
a
a
2.0 5.0
Clamp pulse
minimum
width
OUT
b
SG1
a
a
a
PDCH
Pedestal voltage
temperature
characteristics1
OUT
b
SG1
a
a
b
SG5
a
PDCL
Pedestal voltage
temperature
characteristics2
OUT
b
SG1
a
a
b
SG5
OTr
OSD pulse
characteristics1
OUT
a
OTf
OSD pulse
characteristics2
OUT
a
Oaj1
OSD adjust control
characteristics1
OUT
a
∆Oaj1
OSD adjust control
relative
characteristics1
−
−
Oaj2
OSD adjust control
characteristics2
OUT
a
∆Oaj2
OSD adjust control
relative
characteristics2
−
−
Oaj3
OSD adjust control
characteristics3
OUT
a
∆Oaj3
OSD adjust control
relative
characteristics3
−
−
VthOSD
OSD input
threshold
voltage
OUT
a
OSD BLK input
VthBLK threshold
OUT
voltage
1.7
−
ns
−
3.0
−
ns
1.0
1.5
2.0
V
2.0 5.0
0.2
0.5
−
µs
a
2.0 5.0
-3.0
0
0.3
V
a
a
2.0 5.0
-3.0
0
0.3
V
a
a
2.0 5.0
08H
8
−
3.0
6.0
ns
a
a
2.0 5.0
08H
8
−
3.0
6.0
ns
a
a
2.0 5.0
0FH
15
4.6
5.4
6.2
VP-P
−
−
−
0.8
1.0
1.2
−
a
a
08H
8
2.8
3.3
3.8
VP-P
−
−
−
0.8
1.0
1.2
−
a
a
0
0.1
0.5
VP-P
−
−
−
0.8
1.0
1.2
−
a
a
2.0 5.0
08H
8
2.2
2.7
3.2
V
a
a
2.0 5.0
00H
0
2.2
2.7
3.2
V
b
b
SG5 SG7 a
b
b
SG5 SG7 a
b
b
SG5 SG7 a
2.0 5.0
0FH
15
1.7
2.0
2.3
V
2.0 5.0
06H
6
0.7
1.0
1.3
V
2.0 5.0
00H
0
0.1
0.4
0.7
V
2.0 5.0
08H
8
1.0
1.5
2.0
V
a
b
SG5
b
b
a SG6
SG5
b
b
a SG6
SG5
b
b
b
SG6 SG6 SG5
−
−
−
b
b
b
SG6 SG6 SG5
−
−
−
b
b
b
SG6 SG6 SG5
−
−
−
b
b
b
SG6 SG5
SG6 Variable
b
b
SG6 a
SG1 Variable
b
SG5
a
a
a
HBLK2
Retrace BLK
characteristics2
OUT
a
a
a
HBLK3
Retrace BLK
characteristics3
OUT
a
a
a
OUT
a
a
a
SonG
IN
Sync
OUT
a
a
a
SonG
IN
Sync
OUT
a
Sync
OUT
a
a
a
a
Sync
OUT
a
a
a
Sync
OUT
a
a
a
Retrace BLK
voltage
SS-SV
VSH
VSL
TDS-F
00H FFH FFH FFH FFH 00H
0
255 255 255 255
0
FFH
255
Variable
OUT
SOG input
maximum
noize voltage
SOG
minimum
input voltage
Sync output
hi level
Sync output
lo level
Sync output
delay time1
FFH FFH FFH 00H
255 255 255
0
Variable
Retrace BLK
characteristics1
SS-NV
Unit
Min. Typ. Max.
−
HBLK1
VthRET input threshold
Limits
00H 01H 02H 03H 04H 05H 06H 07H 08H 09H
Pulse
characteristics1
(4VP-P)
WCP
5
CTL
voltage
Input
b
b
SG7 a
SG5 Variable
a
b
a SG4
−
−
2.0 5.0
−
−
2.0 5.0
−
−
2.0 5.0
08H
8
0 0.01 0.02
VP-P
Variable
a
a
b
2.0 5.0
0.2
0.3
−
VP-P
b
a SG4
2.0 5.0
4.5
4.9
5.0
V
a
b
a SG4
2.0 5.0
0
0.3
0.6
V
a
b
a SG4
2.0 5.0
0
60
90
ns
a
a SG4
Variable
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
ELECTRICAL CHARACTERISTICS (cont.)
Symbol
Parameter
Test
point 2,6,11
(s) RGB
in
TDS-R
VOH
VOL
IAO
DNL
Sync output
delay time2
D/A H output
voltage
D/A L output
voltage
D/A output
current range
D/A
nonlinearity
Sync
OUT
CTL
voltage
Input
1 4,9,13
7
19
27
OSD OSD CP in ReT SOG
in
BLK
BLK in
30 15
Bri- ABL
ght
BUS CTL (H)
Limits
Unit
00H 01H 02H 03H 04H 05H 06H 07H 08H 09H
0BH
Main Sub Sub Sub OSD BLK D/A D/A D/A D/A INT
cont cont cont cont Adj Adj OUT OUT OUT OUT EXT
1
2
3
1
2
3
4
a
a
a
a
b
a SG4
2.0 5.0
D/A
OUT
D/A
OUT
D/A
OUT
a
a
a
a
a
a
2.0 5.0
a
a
a
a
a
a
2.0 5.0
00H
0
a
a
a
a
a
a
D/A
OUT
a
a
a
a
a
a
Min. Typ. Max.
0
60
90
ns
4.5
5.0
5.5
VDC
00H
0
0
0.5
1.0
VDC
2.0 5.0
Vari Vari Vari Vari
abl abl abl abl
e
e
e
e
-1.0
−
0.4
mA
2.0 5.0
Vari Vari Vari Vari
abl abl abl abl
e
e
e
e
-1.0
−
1.0
LSB
FFH FFH FFH FFH 00H
255 255 255 255
0
00H FFH FFH FFH FFH 00H
0
255 255 255 255
0
00H
0
00H
0
ELECTRICAL CHARACTERISTICS TEST METHOD
∆Gv Relative maximum gain
ICC1 Circuit current1
Measuring conditions are as listed in supplementary Table.
Relative maximum gain ∆GV is calculated by the equation bellow:
∆GV= VOUT (29)/VOUT (32),
Mesured with a current meter at test point IA.
VOUT (32)/VOUT (35),
VOUT (35)/VOUT (29)
ICC2 Circuit current2
Measureing conditions are as listed in supplemtary Table.
Measured with a current meter at test point IB.
VC1 Main contrast control characteristics1
Measureing the amplitude output at OUT (29, 32, 35). The
measured value is called VOUT (29, 32, 35). Main contrast control
Vomax Output dynamic range
Decrease V30 gradually, and measure the voltage when the bottom
characterics VC1 is calculated by the equation bellow:
VC1=20Log
of waveform output is distorted. The voltage is called VCL.
VOUT
(dB)
0.7
Next, increase V30 gradually, and measure the voltage when the
top of waveform output is distorted. The voltage is called VOH.
∆VC1 Main contrast control relative characteristics1
Voltage Vomax is calculated by the equation below:
Relative characteristics ∆VC1 is calculated by the equation bellow:
∆VC1=VOUT (29)/VOUT (32),
Vomax = VOH-VOL
(V)
VOUT (32)/VOUT (35),
VOUT (35)/VOUT (29)
VOH
5.0
Waveform output
VC2 Main contrast control characteristics2
Measuring condition and procedure are the same as described in
VC1.
VOL
0.0
∆VC2 Main contrast control relative characteristics2
Vimax Maximum input
Increase the input signal (SG2) amplitude gradually, starting from
Measuring condition and procedure are the same as described in
∆VC1.
700mVP-P. Measure the amplitude of the input signal when the
output signal starts becoming distorted.
Gv Maximum gain
Input SG1, and read the amplitude output at OUT (29, 32, 35). The
amplitude is called VOUT (29, 32, 35). Maximum gain G V is
calculated by the equation below:
GV=20Log
VOUT
(dB)
0.7
VC3 Main contrast control characteristics3
Measuring condition and procedure are the same as described in
VC1.
∆VC3 Main contrast control relative characteristics3
Measuring condition and procedure are the same as described in
∆VC1.
6
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
VSC1 Sub contrast control characteristics1
Measur the amplitude output at OUT (29, 32, 35). The measured
ABL2 ABL control characteristics2
Measuring condition and procedure are the same as described in
value is called VOUT (29, 32, 35). Sub contrast control
ABL1.
characteristics VSC1 is calculated by the equation below:
VSC1=20Log
VOUT
(dB)
0.7
∆ABL2 ABL control relative characteristics2
Measuring condition and procedure are the same as described in
∆ABL1.
∆VSC1 Sub contrast control relative characteristics1
Relative characteristics ∆VSC1 is calculated by the equation below:
∆VSC1= VOUT (29)/VOUT (32),
VB1 Brightness control characteristics1
Measure the DC voltage at OUT (29, 32, 35) with a voltmeter. The
VOUT (32)/VOUT (35),
measured value is called VOUT (29, 32, 35), and is ttreated as V B1.
VOUT (35)/VOUT (29).
∆VB1 Brightness control relative characteristics1
VSC2 Sub contrast control characteristics2
Measuring condition and procedure are the same as described in
Relative characteristics ∆VB1 is calculated by the difference in the
output between the channels.
∆VB1= VOUT (29)-VOUT (32),
VSC1.
VOUT (32)-VOUT (35),
∆VSC2 Sub contrast control relative characteristics2
VOUT (35)-VOUT (29)
Measuring condition and procedure are the same as described in
∆VSC1.
VB2 Brightness control characteristics2
Measuring condition and procedure are the same as described in
VSC3 Sub contrast control characteristics3
Measuring condition and procedure are the same as described in
VB1.
∆VB2 Brightness control relative characteristics2
VSC1.
Measuring condition and procedure are the same as described in
∆VSC3 Sub contrast control relative characteristics3
∆VB1.
Measuring condition and procedure are the same as described in
∆VSC1.
VB3 Brightness control characteristics3
Measuring condition and procedure are the same as described in
VMSC Main/sub contrast control characteristics2
Measure the amplitude output at OUT (29, 32, 35). The measured
value is called VOUT (29, 32, 35). Main/Sub contrast control
characteristics VMSC1 is calculated by the equation below:
VMSC1=20Log
VOUT
0.7
(dB)
∆VMSC Main/sub contrast control relative characteristics2
Relative characteristics ∆VMSC1 is calculated by the equation
below:
∆VMSC= VOUT (29)/VOUT (32),
VOUT (32)/VOUT (35),
VOUT (35)/VOUT (29)
VB1.
∆VB3 Brightness control relative characteristics3
Measuring condition and procedure are the same as described in
∆VB1.
FC1 Frequency characteristics1 (f=50MHz)
First, SG3 to 1MHz is as input signal. Input a resister that is about
2kΩ to offer the voltage at input pins (2, 6, 11) in order that the bottom of input signal is 2.5V. Control the main contrast in order that
the amplitude of sine wave output is 4.0V P-P. Control the brightness
in order that the bottom of sine wave output is 2.0V P-P. By the same
way, measure the output amplitude when SG3 to 50MHz is as input
signal. The measured value is called VOUT (29, 32, 35). Frequency
ABL1 ABL control characteristics1
Measure the amplitude output at OUT (29, 32, 35). The measured
characteristics FC1 (29, 32, 35) is calculated by the equation below:
value is called VOUT (29, 32, 35), and is ttreated as ABL1.
FC1=20Log
VOUT VP-P
(dB)
Output amplitude when inputed SG3 (1MHz):4V P-P
∆ABL1 ABL control relative characteristics1
Relative characteristics ∆ABL1 is calculated by the equation below:
∆ABL1= VOUT (29)/VOUT (32),
VOUT (32)/VOUT (35),
VOUT (35)/VOUT (29)
7
∆FC1 Frequency relative characteristics1 (f=50MHz)
Relative characteristics ∆FC1 is calculated by the difference in the
output between the channels.
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
FC1' Frequency characteristics1 (f=150MHz)
Measuring condition and procedure are the same as described in
C.T.3 Crosstalk3 (f=50MHz)
Input SG3 (50MHz) to pin11 only, and then measure the waveform
FC1, expect SG3 to 150MHz.
amplitude output at OUT (29, 32, 35). The measured value is called
VOUT (29, 32, 35). Crosstalk C.T.2 is calculated by the equation
∆FC1' Frequency relative characteristics1 (f=150MHz)
Relative characteristics ∆FC1' is calculated by the difference in the
below:
C.T.3=20Log
output between the channels.
VOUT (32, 35)
VOUT (29)
FC2 Frequency characteristics2 (f=150MHz)
SG3 to 1MHz is as input signal. Control the main contrast in order
C.T.3' Crosstalk3 (f=150MHz)
that the amplitude of sine wave output is 1.0V P-P. By the same way,
C.T.3, expect SG3 to 150MHz.
(dB)
Measuring condition and procedure are the same as described in
measure the output amplitude when SG3 to 150MHz is as input
signal.
The measured value is called VOUT (29, 32, 35). Frequency
characteristics FC2 (29, 32, 35) is calculated by the equation below:
FC1=20Log
VOUT VP-P
(dB)
Output amplitude when inputed SG3 (1MHz):4V P-P
Tr Pulse characteristics1 (4VP-P)
Control the main contrast (00H) in order that the amplitude of output
signal is 4.0VP-P.
Control the brightness (V30) in order that the Black level of output
signal is 2.0V.
Measure the time needed for the input pulse to rise from 10% to 90
∆FC2 Frequency relative characteristics2 (f=150MHz)
Relative characteristics ∆FC2 is calculated by the difference in the
% (Tr1) and for the output pulse to rise from 10% to 90% (Tr2) with
output between the channels.
Pulse characteristics TR is calculated by the equations below:
an active prove.
TR= [(Tr2)2-(Tr1)2] (nsec)
C.T.1 Crosstalk1 (f=50MHz)
Input SG3 (50MHz) to pin2 only, and then measure the waveform
amplitude output at OUT (29, 32, 35). The measured value is called
VOUT (29, 32, 35). Crosstalk C.T.1 is calculated by the equation
below:
Tf Pulse characteristics2 (4VP-P)
Measure the time needed for the input pulseto fall from 90% to 10%
(Tf1) and for the output pulse to fall from 90% to 10% (Tf2) with an
active prove.
C.T.1=20Log
VOUT (29, 32)
VOUT (35)
(dB)
Pulse characteristics TF is calculated by the equations below:
TR= [(Tf2)2-(Tf1)2] (nsec)
C.T.1' Crosstalk1 (f=150MHz)
Measuring condition and procedure are the same as described in
100%
90%
C.T.1, expect SG3 to 150MHz.
C.T.2 Crosstalk2 (f=50MHz)
Input SG3 (50MHz) to pin6 only, and then measure the waveform
amplitude output at OUT (29, 32, 35). The measured value is called
VOUT (29, 32, 35). Crosstalk C.T.2 is calculated by the equation
10%
0%
Tr1 or Tr2
Tf1 or Tf2
below:
C.T.2=20Log
VOUT (29, 35)
VOUT (32)
(dB)
VthCP Clamp pulse threshold voltage
Turn down the SG5 input level gradually from 5.0V P-P, monitoring
the waveform output.
C.T.2' Crosstalk2 (f=150MHz)
Measure the top level of input pulse when the output pedestal
Measuring condition and procedure are the same as described in
voltage turn decrease with unstable.
C.T.2, expect SG3 to 150MHz.
WCP Clamp pulse minimum width
Decrease the SG5 pulse width gradually from 0.5µs, monitoring the
output. Measure the SG5 pulse width (a point of 1.5V) when the
output pedestal voltage turn decrease with unstable.
8
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
PDCH Pedestal voltage temperature characteristics1
Measure the pedestal voltage at 25°C. The measured value is
VthOSD OSD input threshold voltage
called PDC1.
the SG6 level when the output reaches 0V. The measured value is
Measure the pedestal voltage at temperature of -20°C.
called VthOSD.
Reduce the SG6 input level gradually, monitoring output. Measure
The measured value is called PDC2.
Pedestal voltage temperature characteristics 1 is calculated by the
equation below:
PDCH=PDC1-PDC2
VthBLK OSD BLK input threshold voltage
Confirm that output signal is being blanked by the SG6 at the time.
Monitoring to output signal, decreasing the level of SG6. Measure
the top level of SG6 when the blanking period is disappeared. The
PDCL Pedestal voltage temperature characteristics2
Measure the pedestal voltage at 25°C. The measured value is
measured value is called VthBLK.
called PDC1.
Measure the pedestal voltage at temperature of 75°C.
HBLK1 Retrace BLK characteristics1
Measure the amplitude output is blanked by the SG7 at OUT (29,
The measured value is called PDC3.
32, 35). The measured value is called VOUT (29, 32, 35), and is
Pedestal voltage temperature characteristics 2 is calculated by the
treated as HBLK1.
equation below:
PDCL=PDC1-PDC3
OTr OSD pulse characteristics1
Measure the time needed for the output pulse to rise from 10% to
90% (OTR) with an active prove.
OTf OSD pulse characteristics2
Measure the time needed for the output pulse to fall from 90% to
HBLK2 Retrace BLK characteristics2
Measure the amplitude output is blanked by the SG7 at OUT (29,
32, 35). The measured value is called VOUT (29, 32, 35), and is
treated as HBLK2.
HBLK3 Retrace BLK characteristics3
Measure the amplitude output is blanked by the SG7 at OUT (29,
32, 35). The measured value is called VOUT (29, 32, 35), and is
treated as HBLK3.
10% (OTF) with an active prove.
Oaj1 OSD adjust control characteristics1
Measure the amplitude output at OUT (29, 32, 35). The measured
VthRET Retrace BLK input threshold voltage
Confirm that output signal is being blanked by the SG7 at the time.
value is called VOUT (29,32,35), and is treated as Oaj1.
Monitoring to output signal, decreasing the level of SG7. Measure
the top level of SG7 when the blanking period is disappeared. The
∆Oaj1 OSD adjust control relative characteristics1
Relative characteristics ∆Oaj1 is calculated by the equation below:
∆Oaj1= VOUT (29)/VOUT (32),
measured value is called VthRET.
VOUT (32)/VOUT (35),
SS-NV SOG input maximum noize voltage
The sync's amplitude of SG4 be changed all white into all black,
VOUT (35)/VOUT (29)
increase from 0VP-P to 0.02VP-P. No pulse output permitted.
Oaj2 OSD adjust control characteristics2
Measuring condition and procedure are the same as described in
SS-SV SOG minimum input voltage
The sync's amplitude of SG4 be changed all white or all black,
Oaj1.
decrease from 0.3VP-P to 0.2VP-P. Confirm no malfunction produced
∆Oaj2 OSD adjust control relative characteristics2
Measuring condition and procedure are the same as described in
∆Oaj1.
Oaj3 OSD adjust control characteristics3
Measuring condition and procedure are the same as described in
Oaj1.
∆Oaj3 OSD adjust control relative characteristics3
Measuring condition and procedure are the same as described in
∆Oaj1.
9
by noise.
VSH Sync output hi level
Measure the high voltage at SyncOUT. The measured value is
treated as VSH.
VSL Sync output lo level
Measure the low voltage at SyncOUT. The measured value is
treated as VSL.
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
TDS-F Sync output delay time1
SyncOUT becomes High with sync part of SG4.
VOH D/A H output voltage
Measure the DC voltage at D/AOUT. The measured value is
Measure the time needed for the front edge of SG4 sync to fall from
ttreated as VOH.
50% and for SyncOUT to rise from 50% with an active prove. The
measured value is treated as TDS-F, less than 90nsec.
VOL D/A L output voltage
Measure the DC voltage at D/AOUT. The measured value is
TDS-R Sync output delay time2
Measure the time needed for the rear edge of SG4 sync to rise from
ttreated as VOL.
50% and for SyncOUT to fall from 50% with an active prove. The
IAO D/A output current range
Electric current flow from the output of D/AOUT must be less than
measured value is treated as TDS-R, less than 90nsec.
1.0mA.
Electric current flow in the output of D/AOUT must be less than
SG4
0.4mA.
Pedestal voltage
sync (50%)
SyncOUT
(50%)
TDS-F
DNL D/A nonlinearity
The difference of differential non-linearity of D/AOUT must be less
TDS-R
than ±1.0LSB.
BUS CONTROL TABLE
(1) Slave address
D7
1
D6
0
D5
0
D4
0
D3
1
D2
0
D1
0
R/W
0
=88H
(2) Each function’s sub address
bit
sub
add.
Main contrast
8
00H
Sub contrast R
8
01H
Sub contrast G
8
02H
Sub contrast B
8
03H
OSD level
4
04H
RE-BLK adjust
4
05H
D/A OUT1
8
06H
D/A OUT2
8
07H
D/A OUT3
8
08H
D/A OUT4
8
09H
Pedestal clamp INT/EXT SW
1
0BH
Function
D7
A07
0
A17
1
A27
1
A37
1
−
0
−
0
A67
1
A77
1
A87
1
A97
1
−
0
D6
A06
1
A16
0
A26
0
A36
0
−
0
−
0
A66
0
A76
0
A86
0
A96
0
−
0
Data byte (up:bit information down: preset)
D5
D4
D3
D2
A05
A04
A03
A02
0
0
0
0
A15
A14
A13
A12
0
0
0
0
A25
A24
A23
A22
0
0
0
0
A35
A34
A33
A32
0
0
0
0
−
−
A43
A42
0
0
1
0
−
−
A53
A52
0
0
1
0
A65
A64
A63
A62
0
0
0
0
A75
A74
A73
A72
0
0
0
0
A85
A84
A83
A82
0
0
0
0
A95
A94
A93
A92
0
0
0
0
−
−
−
−
0
0
0
0
D1
A01
0
A11
0
A21
0
A31
0
A41
0
A51
0
A61
0
A71
0
A81
0
A91
0
−
0
D0
A00
0
A10
0
A20
0
A30
0
A40
0
A50
0
A60
0
A70
0
A80
0
A90
0
AB0
0
Notes) pedestal level INT/EXT SW
0→INT
1→EXT
10
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
I2C BUS CONTROL SECTION SDA, SCL CHARACTERISTICS
Symbol
VIL
VIH
fSCL
tBUF
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tr
tf
tSU:STO
Parameter
min. input LOW voltage
max. input HIGH voltage
SCL clock frequency
Time the bus must be free before a new transmission can start
Hold time start condition. After this period the first clock pulse is generated
The LOW period of the clock
The HIGH period of the clock
Set up time for start condition (Only relevant for a repeated start condition)
Hold time DATA
Set-up time DATA
Rise time of both SDA and SCL lines
Fall time of both SDA and SCL lines
Set-up time for stop condition
Min.
-0.5
3.0
0
4.7
4.0
4.7
4.0
4.7
0
250
−
−
4.0
Max.
1.5
5.5
100
−
−
−
−
−
−
−
1000
300
−
TIMING DIAGRAM
tBUF
tr, tf
VIH
SDA
VIL
tHD:STA
tSU:DAT
tHD:DAT
tSU:STA
tSU:STO
VIH
SCL
VIL
tLOW
S
11
tHIGH
S
P
S
Unit
V
V
kHz
µs
µs
µs
µs
µs
µs
ns
ns
ns
µs
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
INPUT SIGNAL
SG No.
Signals
Pulse with amplitude of 0.7VP-P (f=30kHz). Video width of 25µs. (75%)
33µs
SG1
Video signal
(all white)
8µs
0.7VP-P
SG2
Video signal
(step wave)
0.7VP-P
(Amplitude is partially variable.)
SG3
Sine wave
Sine wave amplitude of 0.7VP-P.
f=1MHz, 50MHz, 150MHz (variable)
(for freq. char.)
Video width of 25µs. (75%)
SG4
all white or all black
variable.
0.7VP-P
Video signal
(all white,
all black)
0.3VP-P Sync’s amplitude
is variable.
3µs
Pulse width and amplitude are variable.
0.5µs
SG5
Clamp
pulse
5VTTL
SG6
OSD pulse
5VTTL
Amplitude is partially variable.
5µs
SG7
BLK pulse
5VTTL
5µs
Amplitude is partially variable.
∗) f=30kHz
12
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
TEST CIRCUIT
OUT (35)
OUT (32)
V30
0 to 5V
100
1k
D/A
D/A
D/A
D/A
OUT1 OUT2 OUT3 OUT4
SG7
OUT (29)
a
1k
1k
SDA
SG5
SCL
C/P IN
a
b
b
SW27
SW19
100µH
36
35
34
12V
out
f/b
33
gnd
31
32
out
29
30
brt
f/b
27
blk
28
f/b
out
26
dac
25
dac
24
dac
23
22
21
20
19
dac
gnd
sda
scl
c/p
M52743SP/M52744SP
blk
R
12V
osd
gnd
G
SonG
12V
osd
gnd
B
12V
osd
gnd
abl
NC
5V
sync
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
IN (2)
3.3µ 0.01µ
47µ
100k
IN (6) SONG
IN
3.3µ 0.01µ
IN (11)
3.3µ 0.01µ
SYNC
OUT
1µ
SW1
a
SW2
ba
SW4
a
b
b
SW7
ba
SW6
a
SW9
a
b
b
SW11
a
SW13
a
b
V15
0 to 5V
1k
b
A IB
IA
5V
A
47µ 12V
SG6
SG1
SG2
SG3
SG4
: MEASURE POINT
∗ Condenser : 0.01µF (unless otherwise specified.)
Units Resistance : Ω
Capacitance : F
TYPICAL CHARACTERISTICS
THERMAL DERATING
MAIN CONTRAST CONTROL CHARACTERISTICS
6
2403
2400
OUTPUT AMPLITUDE (VP-P)
POWER DISSIPATION Pd (mW)
2800
2000
1600
1442
1200
800
400
0
-20
0
25
50
75
100
125
AMBIENT TEMPERATURE Ta (°C)
13
150
5
4
3
2
1
Sub contrast: Max
0
00H
FFH
MAIN CONTRAST CONTROL DATA
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
SUB CONTRAST CONTROL CHARACTERISTICS
BRIGHTNESS CONTROL CHARACTERISTICS
6
OUTPUT DC VOLTAGE (VDC)
OUTPUT AMPLITUDE (VP-P)
6
5
4
3
2
1
Main contrast: Max
0
00H
4
3
2
1
0
FFH
5
0
SUB CONTRAST CONTROL DATA
BRIGHTNESS CONTROL VOLTAGE (V DC)
ABL CHARACTERISTICS
OSD ADJUST CONTROL CHARACTERISTICS
6
6
OUTPUT AMPLITUDE (VP-P)
OUTPUT AMPLITUDE (VP-P)
5
5
4
3
2
1
Main contrast: Max
Sub contrast : Max
0
5
0
ABL CONTROL VOLTAGE (VDC)
5
4
3
2
1
0
0H
FH
OSD ADJUST CONTROL DATA
SYNC ON GREEN INPUT MIN. PULSE WIDTH
12
(Video duty=75%)
SYNC DUTY (%)
10
8
Sync separate
normal operating range
6
4
2
7
100k
1µ
0
0.5
0
INPUT SYNC AMPLITUDE (VP-P)
IN
14
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
APPLICATION EXAMPLE
CRT
110V
Cut Off Adj
DAC OUT×4
5VTTL
1k
1k
BLK IN
(for retrace)
1k
SDA
0 to 5V
100
100µH
0.01µ 0.01µ 0.01µ 0.01µ
0.01µ
36
35
34
33
32
31
30
29
SCL
Clamp pulse
IN
28
27
26
25
24
23
22
12
13
14
15
21
20
19
16
17
18
M52743SP/M52744SP
1
2
3
4
5
6
7
0.01µ
8
100k
9
10
11
0.01µ
0.01µ
NC
1µ
3.3µ
0.01µ
47µ
ABL IN
47µ
0.01µ
3.3µ
0.01µ
47µ
0 to 5V
1k
3.3µ
75
75
75
Sync
Sep
OUT
5VTTL
5VTTL
5VTTL
OSD IN (B)
OSD IN (G)
OSD IN (R)
BLK IN
(for OSD)
5VTTL
0.01µ
12V
5V
INPUT
(R)
INPUT
(G)
∗
SONG
INPUT
INPUT
(B)
∗ Circuit example of pin6 and pin7 same signal input
15
47µ
•FEED BACK IS
INTERNAL FEED BACK
Units Resistance : Ω
Capacitance : F
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
DESCRIPTION OF PIN
Pin No.
Name
DC voltage (V )
Peripheral circuit of pins
Description of function
R
⋅Input pulses
G
1
OSD BLK IN
−
3.7 to 5V
1
B
1.7V
maximum
0.8mA
2.7V
2k
2
6
11
INPUT (R)
INPUT (G)
INPUT (R)
⋅Connected to GND if not
used.
2k
⋅Clamped to about 2.5V
due to clamp pulses
from pin 19.
⋅Input at low impedance.
2.5
2
2.5V
CP
0.3mA
3
8
12
VCC1 (R)
VCC1 (G)
VCC1 (B)
⋅Apply equivalent
voltage to 3 channels.
−
12
⋅Input pulses
4
9
13
OSD IN (R)
OSD IN (G)
OSD IN (B)
3.7 to 5V
1k
−
1.7V
maximum
4
2.7V
0.5mA
5
10
14
22
33
7
GND 1 (R)
GND 1 (G)
GND 1 (B)
GND (5V)
GND 2
INPUT
(S on G)
⋅Connected to GND if not
used.
−
GND
500
When open≈2.5V
1k
3.2V
7
⋅SYNC ON GREEN
input pin for sync
separation.
Sync is negative.
input signal at Pin7,
compare with the
reference voltage of
internal circuit in order to
separate sync signal.
⋅When not used, set to
OPEN.
16
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
DESCRIPTION OF PIN (cont.)
Pin No.
Name
DC voltage (V )
Peripheral circuit of pins
Description of function
2.5V
⋅ABL (Automatic Beam
Limitter) input pin.
Recommended voltage
range is 0 to 5V.
When ABL function is not
used, set to 5V.
20k
15
ABL IN
When open 2.5V
1.2k
1.2k
30k
0.5mA
15
16
17
NC
VCC (5V)
−
−
5
−
18
18
S on G Sep
OUT
⋅Sync signal output pin,
Being of open collector
output type.
−
41k
⋅Input pulses
2.5 to 5V
19
Clamp Pulse
IN
−
0.5V
maximum
19
2.2V
⋅Input at low impedance.
0.15mA
50k
20
SCL
⋅SCL of I2C BUS
(Serial clock line)
VTH=2.3V
−
20
2k
3V
50k
21
SDA
⋅SDA of I2C BUS
(Serial data line)
VTH=2.3V
−
21
2k
3V
17
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
DESCRIPTION OF PIN (cont.)
Pin No.
23
24
25
26
Name
D/A OUT
DC voltage (V )
Peripheral circuit of pins
−
Description of function
⋅D/A output pin.
Output voltage range is
0 to 5V, Max output
current is 0.4mA.
23
50k
R
⋅Input pulses
2.5 to 5V
G
27
Retrace BLK
IN
−
B
0.5V
maximum
27
2.25V
⋅Connected to GND if not
used.
35k
28
31
34
EXT Feed
Back (B)
EXT Feed
Back (G)
EXT Feed
Back (R)
−
Variable
28
29
32
35
OUTPUT (B)
OUTPUT (G)
OUTPUT (R)
⋅A resistor is needed on
the GND side.
Set discretionally to
maximum 15mA,
depending on the
required driving capacity.
36
Variable
50
50
29
36
VCC2
⋅Used to supply power to
output emitter follower
only.
12
Impressed
35k
30
Main
Brightness
⋅It is recommended that
the IC be used between
pedestal voltage 2V and
3V.
−
30
18
MITSUBISHI ICs (Monitor)
M52743SP/M52744SP
I2C BUS CONTROLLED 3-CHANNEL VIDEO PREAMPLIFIER
APPLICATION METHOD FOR M52743SP
CLAMP PULSE INPUT
Clamp pulse width is recommended
above 15kHz, 1.0µsec
above 30kHz, 0.5µsec
above 64kHz, 0.3µsec.
The clamp pulse circuit in ordinary set is a long round about way,
and beside high voltage, sometimes connected to external terminal,
it is very easy affected by large surge.
Therefore, the Fig. shown right is recommended.
19
EXT-FEED BACK
In case of application circuit example of lower figure, Set up R1, R2
which seems that the black level of the signal feedbacked from
Power AMP is 1V, when the bottom of output signal is 1V.
MAIN BRIGHTNESS
DC:1 to 5V
Power Amp
Power Amp OUT
M52743SP/M52744SP
Pre Amp
INPUT R
R OUT PUT
Black level 1 to 5V
R1
R Feed back
Black level 1 to 5V
R2
EXT-FEED BACK APPLICATION CIRCUIT
NOTICE OF APPLICATION
⋅ Make the nearest distance between output pin and pull down
resister.
⋅ Recommended pedestal voltage of IC output signal is 2V.
TAILING
There is the case that a screen tailing like a figure by characteristic
of the next stage amplifier connected to M52744SP.
That case recommends use of M52743SP.
Window
signal
SCREEN
19
Shadow
tailing