Mitsubishi M52737SP Datasheet

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 a vailable for each channel, including OSD
blanking, OSD mixing, retrace blanking, wide-band amplification,
contrast control (main and sub), and brightness control.

FEATURES

•

Frequency band width: RGB................................150MHz (3V

OSD..............................................50MHz

Input :RGB.............................................................0.7V

OSD...............................................3.0V

BLK (for OSD)...............................3.0V

Retrace BLK..................................3.0V

min. (positiv e)

P-P

P-P

min. (positive)

P-P

min. (positive)

Output :RGB...........................................................4.5V

OSD...........................................................4.5V

•

To adjust contrast and OSD Adj, for each, two types of controls
are provided, main and sub. With the main control, the contr ast 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.

P-P

P-P
P-P

P-P

(typ.)

(max.)
(max.)

PIN CONFIGURATION (TOP VIEW)

CC1 (B)

CC1 (G)

CC1 (R)

CP IN

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18 19

BLK IN (FOR OSD) OSD ADJUST

V

INPUT (B)

SUB CONTRAST (B)

OSD IN (B)

GND1 (B)

V

)

SUB CONTRAST (G)

SUB CONTRAST (R)

INPUT (G)

OSD IN (G)

GND1 (G)

V

INPUT (R)

OSD IN (R)

GND1 (R)

MAIN CONTRAST

36
35

34
33
32
31

30

M52737SP

29
28
27
26
25

24
23
22
21
20

OUTPUT (B)
VCC2 (B)
HOLD (B)
NC
GND2 (B)
OUTPUT (G)
VCC2 (G)
HOLD (G)
NC
GND2 (G)
OUTPUT (R)

CC2 (R)

V
HOLD (R)
NC
GND2 (R)
BLK IN (FOR RETRACE)
BRIGHTNESS

APPLICATION

Display monitor

RECOMMENDED OPERATING CONDITION

Supply voltage range....................................................11.5 to 12.5V

Rated supply voltage................................................................12.0V

BLOCK DIAGRAM

OSD ADJUST GND2 (G)

35

36

B-ch

BLK

AMP

OSD Mix

Clamp

HOLD (B) OUTPUT (R)OUTPUT (B) GND2 (B) V

CC2 (B)

34 3233 31 30 2627 25 232429 28

B

B

B

NC

B

Brightness

B

Hold

B OSD

Blanking

B

Contrast

OUTPUT (G)V

CC2 (G)

HOLD (G) NC GND2 (R)

G-ch

BLK

Brightness

G

AMP

GR

OSD Mix

G

Clamp

Hold

G OSD

Blanking

Contrast

Outline 36P4E

NC : NO CONNECTION

HOLD (R)

V

CC2 (R)

R-ch

G

G

G

BLK

R

AMP

OSD Mix

R

Clamp

22

R

Brightness

R

Hold

R OSD

Blanking

R

Contrast

BLK IN (FOR RETRACE) NC

BRIGHTNESS

21 1920

1

BLK IN

(FOR OSD)

21

35467 1110 12 141389

INPUT (B) VCC1 (G)

CC1 (B)

CONTRAST(B)

SUB

OSD IN

(B)

GND1 (B)V

CONTRAST(G)

INPUT (G)

SUB

OSD IN (G)

GND1 (G)

V

CC1 (R)

INPUT (R)

CONTRAST(R)

OSD IN (R)

SUB

15

16 1817

CONTRAST

GND1 (R)

MAIN

CP IN

°

°

±

− a − a −

− a −

−

− a −

− a −

∆

−

∆

−

∆

−

− a −

−

− a −

∆

−

− a −

∆

−

− a −

∆

−

− a −

− a −

− a − a −

MITSUBISHI ICs (Monitor)

M52737SP

3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING

− a −

∆

ABSOLUTE MAXIMUM RATINGS

(Ta=25 ° C)

Symbol Parameter Ratings Unit

V

CC

P

d

T

opr

T

stg

V

opr

V

opr’

Surge Electrostatic discharge

ELECTRICAL CHARACTERISTICS

Symbol Parameter

I

CC

Vomax Output dynamic range

Vimax Maximum input

Gv Maximum gain

Supply voltage 13.0 V
Power dissipation 2403 mW
Ambient temperature -20 to +85
Storage temperature -40 to +150

C

C
Recommended supply voltage 12.0 V
Recommended supply voltage range 11.5 to 12.5 V

200 V

CC

(V

=12V , Ta=25 ° C, unless otherwise noted)

Test conditions

Test

point

(s)

Circuit current A

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

Input
SW8

SW13

R-ch

G-ch

a

b

SG5bSG5bSG5

b

SG5bSG5bSG5

b

SG5bSG5bSG5

External power supply (V)

SW3

V4 V17 V19 V36

B-ch

5552

55

5 2.5 2 −

552 −

Vari­able

Pulse input

SW1,

SW18

5, 10,

b

SG4

b

SG4

b

SG4

b

SG4

Limits

SW20

15

a

a

a

a

Min. Typ. Max.

72 93 115 mA

6.2 7.7 9.2 V

1 1.6

16.4 17.8 19.4 dB

Gv Relative maximum gain Relative to measured values above 0.8 1 1.2

V

V

V

CR1

CR1

V

CR2

V

CR2

SCR1

Contrast control
characteristics (typical)

Contrast control relative
characteristics (typical)

Contrast control
characteristics
(minimum)

Contrast control relative
characteristics (minimum)

Sub contrast control
characteristics (typical)

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

b

SG5bSG5bSG5

Relative to measured values above 0.8 1 1.2

b

SG5bSG5bSG5

Relative to measured values above 0.8 1 1.2

b

SG5bSG5bSG5

542 −

512 −

452 −

b

SG4

b

SG4

b

SG4

a

a

a

14.5 16.0 17.5 dB

0.4 0.7 1.0 V

14.5 16.0 17.5 dB

Sub contrast control

SCR1

V

relative characteristics

Relative to measured values above 0.8 1 1.2

(typical)

V

V

V

SCR2

V

SCR2

SCR3

V

SCR3

B1

B1

V

Sub contrast control
characteristics
(minimum)

Sub contrast control relative
characteristics (minimum)

Contrast/sub contrast
control characteristics
(typical)

Contrast/sub contrast
control relative
characteristics (typical)

Brightness control
characteristics
(maximum)

Brightness control relative
characteristics (maximum)

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

b

SG5bSG5bSG5

152 −

b

SG4

a

0.5 0.9 1.3 V

Relative to measured values above 0.8 1 1.2

b

SG5bSG5bSG5

332 −

b

SG4

a

1.1 1.8 2.5 V

Relative to measured values above 0.8 1 1.2

a

554 −

b

SG4

a

3.0 3.6 4.2 V

Relative to measured values above -0.3 0 0.3 V

Unit

P-P

P-P

V

P-P

P-P

P-P

2

MITSUBISHI ICs (Monitor)

M52737SP

3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING

− a − a −

− a −

∆

− a − a −

ELECTRICAL CHARACTERISTICS

Symbol Parameter

B2

V

B2

V

Brightness control
characteristics (typical)

Brightness control relative
characteristics (typical)

Brightness control

B3

V

characteristics
(minimum)

∆V

B3

Brightness control relative
characteristics (minimum)

Frequency

C1

F

characteristics 1
(f=50MHz;maximum)

∆F

C1

Frequency relative
characteristics 1

(f=50MHz;maximum)

Frequency

FC1’

characteristics 1
(f=150MHz;maximum)

∆F

C1’

Frequency relative
characteristics 1

(f=150MHz;maximum)

Frequency

FC2

characteristics 2
(f=150MHz; maximum)

Frequency relative

∆F

C2

characteristics 2
(f=150MHz; maximum)

C.T.1 Crosstalk 1 (f=50MHz)

C.T.1’ Crosstalk 1 (f=150MHz)

C.T.2 Crosstalk 2 (f=50MHz)

C.T.2’ Crosstalk 2 (f=150MHz)

C.T.3 Crosstalk 3 (f=50MHz)

C.T.3’ Crosstalk 3 (f=150MHz)

Tr Pulse characteristics 1

Tf Pulse characteristics 2

V14th

W14

Clamp pulse threshold
voltage

Clamp pulse minimum
width

Pedestal voltage

DCH

P

temperature
characteristics1

Test

point

(s)

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

(cont.)

Input
SW8

SW13

R-ch

SW3

G-ch

a

Relative to measured values above -0.3 0 0.3 V

a

Relative to measured values above -0.3 0 0.3 V

b

SG1bSG1bSG1

Relative to measured values above -1 0 1 −

b

SG2bSG2bSG2

Relative to measured values above -1 0 1 −

b

SG2bSG2bSG2

Relative to measured values above -1 0 1 −

b

SG1a−a−

b

SG2a−a−

a−b

SG1a−

a−b

SG2a−

a−a−b

a−a−b

b

SG3bSG3bSG3

b

SG3bSG3bSG3

b

SG5bSG5bSG5

b

SG5bSG5bSG5

b

SG5bSG5bSG5

Test conditions

External power supply (V)

V4 V17 V19 V36

B-ch

552 −

551 −

Vari-

5

able

Vari-

5

able

Vari-

5

able

55−−

55−−

55−−

55−−

55−−

SG1

55−−

SG2

Vari-

5

able

Vari-

5

able

552−

552−

552−

−−

−−

−−

Vari-

−

able

Vari-

−

able

Pulse input

SW1,

SW18

b

5, 10,

15

a

SW20

SG4

b

a

SG4

−a−

c

a

−

−

c

a

−

−

c

a

−

−

c

a

−

−

c

a

−

−

c

a

−

−

c

a

−

−

c

a

−

−

c

a

−

−

b

SG4a−a−

b

SG4a−a−

b

SG4a−a−

b

SG4a−a−

b

SG4a−a−

Limits

Min. Typ. Max.

1.2 1.8 2.4 V

0.3 0.7 1.1 V

a

-2 0 2.5 dB

−

a

-3 -2.0 3 dB

−

a

-3 0 3 dB

−

a

− -30 -20 dB

−

a

− -20 -15 dB

−

a

− -30 -20 dB

−

a

− -20 -15 dB

−

a

− -30 -20 dB

−

a

− -20 -15 dB

−

− 2.5 − nsec

− 2.5 − nsec

1.0 1.5 2.5 V

0.2 0.5 −µsec

-0.3 0 0.3 V

Unit

DC

DC

3

3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING

Waveform Output at T.P25
(Identical to output at T.P30 and T.P35.)

0.0

5.0

(V)

ELECTRICAL CHARACTERISTICS (cont.)

Symbol Parameter

Pedestal voltage

P

OTr

OTf

DCL

temperature
characteristics2

OSD pulse
characteristics1

OSD pulse
characteristics2

OSD adjusting control

Oaj1

characteristics
(maximum)

OSD adjusting control

∆Oaj1

relative characteristics
(maximum)

OSD adjusting control

Oaj2

characteristics
(minimum)

OSD adjusting control

∆Oaj2

relative characteristics
(minimum)

OSDth

V1th

OSD input threshold
voltage

BLK input threshold
voltage

HBLK Retrace BLK voltage

HVth

Retrace BLK input
threshold voltage

Test

point

(s)

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

T.P.35
T.P.30
T.P.25

SW13

R-ch

b

SG5bSG5bSG5

a−a−a

a−a−a

a−a−a

a−a−a

a−a−a

b

SG5bSG5bSG5

a−a−a

a−a−a

MITSUBISHI ICs (Monitor)

M52737SP

Test conditions

Input
SW8

G-ch

External power supply (V)

SW3

V4 V17 V19 V36

B-ch

552−

55

−

55

−

5524

−

Vari-

able

Vari-

able

SW18

SG4a−a−

Vari­able

SG4

Vari­able

SG4

SG4bSG6a−

Pulse input

SW1,
5, 10,

15

b

SW1...a

b

other...b

SG6

SW1...a

b

other...b

SG6

b

SW20

a

−

a

−

Relative to measured values above 0.8 1 1.2 −

5520

−

b

SG4bSG6a−

Relative to measured values above 0.8 1 1.2 −

SW1...a

5525

−

5525

5520

−

5520

−

b

SG4

b

SG4

a

−

a

−

other...b

SG6

SW1...b

SG6

other...a

a

−

a

−

a

−

a

−

b

SG7

b

SG7

Limits

Min. Typ. Max.

-0.3 0 0.3 V

− 3.5 8 nsec

− 3.5 8 nsec

3.9 4.6 5.3 V

− 0 0.5 V

1.7 2.5 3.5 V

1.7 2.5 3.5 V

− 0.2 0.5 V

0.5 1.5 2.5 V

Unit

DC

P-P

P-P

DC

DC

DC

DC

ELECTRICAL CHARACTERISTICS TEST METHOD

1. Because a description of signal input pin and pulse input pin
switch numbers is already given in Supplementary Table, only
external power supply switch numbers are included in the notes
below.

Sub contrast voltages V4, V9 and V14 are always set to the same
voltage, therefore only V4 is referred to in Supplementary Table.

CC Circuit current

I

Measuring conditions are as listed in Supplementary Table.
Measured with an ammeter At test point A when SWA is set to b.

Vomax Output dynamic range

Voltage V19 is varied as described below:

1. Decrease V19 gradually while inputting SG5 to pin 13 (8 or 3).
Measure the voltage when the bottom of the wav ef orm output at
T.P25 (30 or 35) is distorted. The voltage is called V
VOLB).

OLR (VOLG or

2. Increase V19 gradually, and measure the voltage when the top
of the waveform output at T.P25 (30 or 35) is distorted. The
voltage is called VOHR (VOHG or VOHB).

3. V oltage V OMAX is calculated by the equation below:

VOMAX=VOHR (VOHG, VOHB)-V OLR (VOLG, VOLB)

4

MITSUBISHI ICs (Monitor)

M52737SP

3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING

Vimax Maximum input

Voltage V17 is changed to 2.5V, and increase the input signal
amplitude gradually, starting from 700mV

P-P.

Measure the amplitude when the output signal starts becoming
distorted.

Gv Maximum gain
∆Gv Relative maximum gain

1. Input SG5 to pin 13 (8 or 3), and read the amplitude at output
T.P25 (30 or 35). The amplitude is called V

OR1 (VOG1 or VOB1) .

2. Maximum gain GV is calculated by the equation below:

V=20LOG

G

VOR1 (VOG1, V OB1)

0.7

[VP-P]
[V

P-P]

3. Relative maximum gain ∆G is calculated by the equation below:

∆G

V=VOR1/VOG1, V OG1/VOB1, V OB1/VOR1

VCR1 Contrast control characteristics (typical)
∆V

CR1 Contrast control relative characteristics (typical)

1. Measuring conditions are as given in Supplementary Table.
The setting of V17 is changed to 4V.

2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called VOR2 (VOG2 or VOB2).

3. Contrast control characteristics VCR1 and relative characteristics
∆VCR1 are calculated, respectively, by the equations below:

V

∆V

OR2 (VOG2, VOB2)

CR1=20LOG

CR1=VOR2/VOG2, V OG2/VOB2, V OB2/VOR2

V

0.7

[VP-P]
[V

P-P]

VCR2 Contrast control characteristics (minimum)
∆V

CR2 Contrast control relative characteristics (minimum)

1. Set V17 to 1.0V. Other conditions are as giv en in Supplementary
Table.

2. Measure the amplitude output at T.P25 (30or 35). The measured
value is called VOR3 (VOG3 or VOB3), and is treated as VCR2.

3. Contr ast control relative characteristics ∆ VCR2 are calculated b y
the equation below:

∆VOR2=VOR3/VOG3, VOG3/V OB3, V OB3/VOR3

VSCR1 Sub contrast control characteristics (typical)
∆V

SCR1 Sub contrast control relative characteristics (typical)

1. Set V4, V9 and V14 to 4.0V. Other conditions are as given in
Supplementary T able.

2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called VOR4 (VOG4 or VOB4).

3. Sub contrast control characteristics VSCR1 and relative
characteristics ∆VSCR1 are calculated, respectively, by the
equations below:

[VP-P]
[V

P-P]

∆V

OR4 (VOG4, VOB4)

SCR1=20LOG

V

SCR1=VOR4/VOG4, V OG4/VOB4, V OB4/VOR4

V

0.7

VSCR2 Sub contrast control characteristics (minimum)
∆V

SCR2 Sub contrast control relative characteristics (minimum)

1. Set V4, V9 and V14 to 1.0V. Other conditions are as given in
Supplementary T able.

2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called VOR5 (VOG5 or VOB5), and is treated as VSCR2.

3. Relative characteristics ∆VSCR2 are calculated by the equation
below:

∆V

SCR2=VOR5/VOG5, V OG5/VOB5, V OB5/VOR5

VSCR3 Contrast/sub contrast control characteristics (typical)
∆V

SCR3 Contrast/sub contrast control relative

characteristics (typical)

1. Set V4, V9, V14 and V17 to 3.0V. Other conditions are as given
in Supplementary Table.

2. Measure the amplitude at T.P25 (30 or 35). The measured v alue
is called VOR6 (VOG6 or VOB6). and is treated as VSCR3.

3. Relative sub contrast control characteristics ∆VSCR3 is

∆VSCR3=VOR6/VOG6, VOG6/VOB6, V OB6/V OR6

VB1 Brightness control characteristics (maximum)
∆V

B1 Brightness control relative characteristics (maximum)

1. Measuring conditions are as given in Supplementary Table.

2. Measure the output at T.P25 (30 or 35) with a voltmeter.
The measured value is called VOR7 (V OG7 or V OB7), and is treated
as VB1.

3. T o obtain brightness control relative characteristics, calculate the
difference in the output between the channels, using VOR7, V OG7
and VOB7.

∆VB1=VOR7-VOG7 [V]

=VOG7-VOB7
=VOB7-VOR7

VB2 Brightness control characteristics (typical)
∆V

B2 Brightness control relative characteristics (typical)

1. Measuring conditions are as given in Supplementary Table.

2. Measure the output at T.P25 (30 or 35) with a voltmeter.
The measured value is called VOR7' (VOG7' or VOB7'), and is
treated as VB2.

3. To obtain brightness control relative characteristics (∆VB2),
calculate the difference in the output between the channels,

OR7', VOG7', and VOB7'.

using V

∆VB2 =VOR7'-VOG7' [V]

=VOG7'-VOB7'
=VOB7'-VOR7'

5