Mitsubishi M52721SP Datasheet

MITSUBISHI ICs (Monitor)

M52721SP

WIDEBAND VIDEO PREAMPLIFIER WITH OSD MIX

DESCRIPTION

The M52721SP is a wideband video preamplifier with 200MHz
band.

FEATURES

•

Input:0.7V

•

Maximum gain:20dB

•

Frequency band:200MHz (-3dB)

•

Contrast control (0 to 5V

•

Brightness control (0 to 5V

•

Built-in OSD MIX circuit

P-P

(Typical), Output:7V

DC

DC

P-P

(Maximum)

)

)

APPLICATION

Display monitor

RECOMMENDED OPERATING CONDITION

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

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

Operating temperature..............................................-20 ° C to +85 ° C

Circuit current...........................................................................60mA

PIN CONFIGURATION (TOP VIEW)

CAP

REF.C

F.B.C

GND 1

VIDEO IN

V

CC1

CONTRAST

CLAMP HOLD

OSD.C

+

CLAMP

IN

1
2

3
4

7
8

20
19

18

M52721SP

17
165
156

14
13
129
1110

OSD BLK IN
OSD MIX IN
OSD ADJUST
GND 3
VIDEO OUT
V
VCC2
F/B
GND 2
F/B

Outline 20P4B

CC3

+

–

BLOCK DIAGRAM

OSD

BLK IN

20

1

OSD

MIX IN

OSD

ADJUST

19

2

18

3

17

CONTRAST

AMP

4

16

5

VCC3

15

6

V

CC2GND 3 VIDEO OUT F/B

BRIGHTNESS

AMP

CONTRASTGND 1 VCC1CAP

1314

87

HOLD

+

GND 2 F/B

12

CLAMP

9

11

–+

10

CLAMP

–

+

INCLAMP OSD.CVIDEO INF.B.CREF.C

1

°

°

±

−

−

MITSUBISHI ICs (Monitor)

M52721SP

WIDEBAND VIDEO PREAMPLIFIER WITH OSD MIX

ABSOLUTE MAXIMUM RATINGS

(Ta=25 ° C, unless otherwise noted)

Symbol Parameter Ratings Unit

V

CC

P

d

T

opr

T

stg

V

opr

V

opr’

Surge Electrostatic discharge

ELECTRICAL CHARACTERISTICS

Supply voltage 13.0 V
Power dissipation 1524 mW
Operating temperature -20 to +85
Storage temperature -40 to +150
Recommended operating supply voltage 12.0 V

Recommended operating supply voltage range

11.5 to 12.5 V
200 V

(Ta=25 ° C, V

CC

=12V, unless otherwise noted)

Test conditions

External supply

SWA

Input

SW5

SG8

SG8

SG8

SG8

SG8

SG2

SG3

SG5

SG5

SG8

voltage (V)

V11

Bright-

ness

V18

OSD

Adj

V7

Con-

trast

a

5.0 0.5 0

a

2.5 0.5 0

a

5.0 2.0 0

a

2.5 2.0 0

a

1.0 2.0 0

a

2.5 open 0 c b b -1 0 3 dB

a

2.5 open 0 c b b -3 -2 3 dB

a

4 2.4 0

a

4 2.4 0

a

4 2.4 4

Symbol Parameter

I
V

V

CC

omax

imax

Circuit current A a b 5.0 3.0 5.0 c b b 40 52 64 mA
Output dynamic range T.P16 b

Maximum allowable input T.P16 b

Test

point

Gv Maximum gain T.P16 b

V

V

V

V

V

F

F

T

T

V

W

OT

OT

V

V

O

O

CR1

CR2

B1

B2

B3

1-a

2-a

r

f

10th

10

r

f

19th

20th

aj1

aj2

Contrast control
characteristics 1

Contrast control
characteristics 2

Brightness control
characteristics 1

Brightness control
characteristics 2

Brightness control
characteristics 3

Frequency
characteristics 1-a f=100MHz

Frequency
characteristics 2-a f=200MHz

Pulse characteristics
(rise time)

Pulse characteristics
(fall time)

T.P16 b

T.P16 b

T.P16 b b 5.0 1.0 0

T.P16 b b 5.0 2.0 0

T.P16 b b 5.0 3.0 0

T.P16 b

T.P16 b

T.P16 b

T.P16 b

Clamp pulse threshold voltage T.P16 b b 4 2.4 0

Clamp pulse minimum width T.P16 b b 4 2.4 0
OSD pulse characteristics

(rise time)
OSD pulse characteristics

(fall time)

T.P16 b b 4 2.4 4

T.P16 b b 4 2.4 4

OSD input threshold voltage T.P16 b b 4 2.4 4

BLK input threshold voltage T.P16 b
OSD adjust control

characteristics 1
OSD adjust control

characteristics 2

T.P16 b b 4 2.4 4

T.P16 b b 4 2.4 2

C
C

Pulse

SW19

SW10

OSD

Clamp

MIX

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6

a

SG6aSG7

a

SG6aSG7

a

SG6aSG7

a

SG6

a

SG6aSG7

a

SG6aSG7

Limits

SW20

OSD

Min. Typ. Max.

Unit

BLK

b b 8.0 8.9 11.5 V

bb

−

0.7 1.0 V

b b 17.0 20.0 23.0 dB

b b 13.0 15.0 17.0 dB

b b 5.0 7.2 9.1 dB

b b 0.6 1.0 1.4 V

b b 1.6 2.0 2.4 V

b b 2.6 3.0 3.4 V

bb

bb

−

2.0 5.0 nsec

−

1.5 5.0 nsec

b b 1.9 2.0 5.0 V

b b 0.7 0.8

b

b

5.0 10.0 nsec

5.0 10.0 nsec

−µ

sec

b 2.2 2.3 5.0 V
a

b

2.8 2.9 5.0 V

SG7

b 5.9 6.3 6.8 V

b 2.9 3.3 3.7 V

P-P

P-P

DC

DC

DC

DC

DC

DC

P-P

P-P

2

ELECTRICAL CHARACTERISTICS TEST METHOD

CC

I

Circuit current

When there is no signal, fix SWA on side “a”, and measure I
using ampere meter A.

omax

V

Output dynamic range

Input SG8 to pin 5, and set V11 at 0.5V

.

.

.

.

.

MITSUBISHI ICs (Monitor)

M52721SP

WIDEBAND VIDEO PREAMPLIFIER WITH OSD MIX

V

B2

Brightness control characteristics 2

Set brightness (V11) at 2.0V, and measure the output of TP16 with

,

a voltmeter. This value is V

CC

B3

V

Brightness control characteristics 3

Set brightness (V11) at 3.0V, and measure the output of TP16 with
a voltmeter. This value is V

B2

B3

(V)

9.0

0.0
TP16 OUTPUT WAVEFORM

Gradually increase the amplitude of SG8 from 700mV, and
measure the amplitude of the TP16 output waveform when the
upper side of the waveform becomes distorted.

V

Maximum allowable input

imax

From the condition in Vomax above, change V7 to 2.5V, gradually
increase the amplitude of SG8 from 700mV

P-P

, and read the input

signal amplitude when the output signal starts to be distorted.

Gv Maximum gain

Read the amplitude of TP16 output: it should be taken as V

is determined by:

V=20LOG

G

V

V0 [VP-P]

0.7 [V

P-P]

[dB]

The maximum gain G

0

.

1-a

F

Frequency characteristics 1-a

F

2-a

Frequency characteristics 2-a f=200MHz

f=100MHz

With zero resistance between pins 13 and 16, apply a DC voltage to
pin 5 so that the bottom of the input waveform reaches 2.6V. Next,
apply a DC voltage to pin 8 so that the bottom of the output
waveform reaches 2.4V.
Input SG1 and measure the amplitude of TP16 output (V
Input SG2 and measure the amplitude of TP16 output (V
Input SG3 and measure the amplitude of TP16 output (V
F

and F

1-a

T

r

Pulse characteristics (rise time)

T

f

Pulse characteristics (fall time)

1. Measure the rise time T

are determined by:

2-a

1-a=20LOG

F

2-a=20LOG

F

02 [VP-P]

V
V

01 [VP-P]

V

03 [VP-P]

V01 [VP-P]

and fall time T

r1

[dB]

[dB]

between 10 and 90%

f1

).

01
02

).

03

).

of the input pulse with an active probe.

2. Next, measure the rise time T

and fall time T

r2

between 10 and

f2

90% of the output pulse with an active probe.

2

r (nsec)= (Tr2)

T
Tf (nsec)= (Tf2)2-(Tf1)

-(Tr1)

2

2

CR1

V

Contrast control characteristics 1

Set V7 at 2.5V, and read the amplitude of TP16 output: it should be
taken as V

CR2

V

01

V

CR1=20LOG

V

01 [VP-P]

0.7 [V

P-P]

Contrast control characteristics 2

[dB]

Set V7 at 1.0V, and read the amplitude of TP16 output: it should be
taken as V

V

B1

02

02 [VP-P]

CR2=20LOG

V

V

0.7 [V

P-P]

[dB]

Brightness control characteristics 1

Set brightness (V11) at 1.0V, and measure the output of TP16 with
a voltmeter. This value is V

B1

3

V

Clamp pulse threshold voltage

10th

While monitoring the output (approx. 2.4V

DC

), decrease the SG6
pulse width gradually and measure the SG6 amplitude when the
output reaches 2.4V or more.

W

Clamp pulse minimum width

10

While monitoring the output (approx. 2.4V

), decrease the SG6

DC

amplitude gradually and measure the SG6 pulse width when the
output becomes 2.4V or more.

OT

OSD pulse characteristics (rise time)

r

OT

OSD pulse characteristics (fall time)

f

Measure the OSD rise time T

r

and OSD fall time T

f

between 10 and

90% of the output pulse with an active probe.

V

19th OSD input threshold voltage

While monitoring the output, decrease the SG7 amplitude gradually
and measure the SG7 amplitude when the output reaches 0V.