MITSUMI
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier
Monolithic IC MM1207, 1205
Outline
MM1207XD and MM1205XD are wideband RGB video amplifiers with DC control, developed for use in
monitors. The main differences between MM1207XD and MM1205XD are video amp bandwidth and output
rise time, and output fall time. Other characteristics are the same.
Model
Video amp band
Output rise time
Output fall time
MM1207
85MHz
4.3nS
4.3nS
MM1205
130MHz
2.6nS
3.6nS
MM1207 is described here as the representative model.
MM1207 is a wideband video amps system developed for use in high resolution RGB monitors. In addition to
three matched video amps, it has a gate controlled differential input black level comparator for luminance
adjustment, three matched DC control attenuators for contrast adjustment, and three gain trimming CD
control subcontrast attentuators for white balance. All DC control input is high impedance, and the operating
range is set for easy interface with serial bus control systems, at 0~4V. Also, MM1207's built-in blanking
circuit clamps video output to between GND~0.1V during blanking, enabling blanking on the CRT cathode.
Features
1.
2.
3.
4.
5.
6.
7.
8.
9.
Built-in wideband video amp
85MHz @ -3dB (4V
P-P
output)
Matched (±0.1dB or 1.2%) contrast adjustment attentuators built-in
Built-in cutoff and luminance adjustment single end input comparators with external gate control
Gain of each video amp controlled independently
Built-in high input impedance DC contrast control, 0~4V (> 40dB range)
Built-in high input impedance DC drive control, 0~4V (±3dB range)
7V
P-P
output swing (band slightly attenuated)
Output blanking function
Output can drive almost all hybrid or discrete CRT drivers directly
Package
DIP-28B (MM1207XD, MM1205XD)
Applications
1.
2.
3.
4.
High resolution RGB CRT monitors
AGC amps for video
Gain and DC offset control
Interface amps for LCD or CCD systems
MITSUMI
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
Block Diagram
MITSUMI
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
Pin Description
Pin no.
1, 2
Pin name
CONTRAST CAP
Internal equivalent circuit diagram Pin no.
13
Pin name
BLANK GATE
------------------------------------------------------ ------------------------------------------------
Internal equivalent circuit diagram
14
3, 11
22, 25
4
6
9
R VIDEO IN
G VIDEO IN
B VIDEO IN
15
18
28
VCC1
CLAMP GATE
------------------------------------------------------------- ----------------------------------------------------
B DRIVE ADJ
G DRIVE ADJ
R DRIVE ADJ
5
8
10
R CLAMP CAP
G CLAMP CAP
B CLAMP CAP
16
19
27
B CUT-OFF ADJ
G CUT-OFF ADJ
R CUT-OFF ADJ
17
20
26
R VIDEO OUT
G VIDEO OUT
B VIDEO OUT
7, 21
24
12
GND
CONTRAST
23
V
CC
2
MITSUMI
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
Absolute Maximum Ratings
Item
Storage temperature
Operating temperature
Power supply voltage
Pin input voltage
Video output current
Allowable loss
Electrostatic breakdown 1
Electrostatic breakdown 2
Pin temperature
(Ta=25°C)
Symbol
T
STG
T
OPR
V
CC
V
IN
I
O
Pd
Ratings
-65~+150
-20~+80
13.5
GND < V
IN
< V
CC
=
=
28
2.5
2
1
265
Units
°C
°C
V
V
mA
W
kV
kV
°C
Recommended Operating Conditions
Item
Operating voltage
Symbol
V
CC
(Ta=25°C)
Min. Typ. Max. Units
10.8
12.0
13.2
V
DC Electrical Characteristics
Item
Consumption current
Video amp input voltage
Video input resistance
Clamp gate input voltage L
Clamp gate input voltage H
Clamp gate input current L
Clamp gate input current H
Clamping capacitor charge current
Clamping capacitor discharge current
Clamping capacitor bias discharge current
Blanking gate input voltage L
Blanking gate input voltage H
Blanking gate input current L
Blanking gate input current H
Video output voltage L
Video output voltage H
Video black level output voltage
Video
black level output voltage
(Ta=25°C, V
CC
=12V, V12=4V, V14=0V, V
C-O
=1V, V
DRV
=4V, S1~3=OFF, S4~6=1)
Symbol
I
CC
1
V
B
R
B
V
CGL
V
CGH
I
CGL
I
CGH
I
CL+
I
CL-
I
CLB
V
BGL
V
BGH
I
BGL
I
BGH
V
OL
V
OH
V
O
V
O
V
OBL
I12
I
DRV
I
C-O
S5=2
S4=2
S4=2
V13=0V, S4=2
V13=12V, S4=2
V
C-O
=0V
V
C-O
=9V
V
C-O
=1V
V
C-O
=1V
V13=0V
V12=0~4V
V
DRV
=0~4V
V
C-O
=0~4V
7.0
-5.0
0.01
0.8
V14=0V
V14=12V
500
0.8
Measurement conditions
V
CC
1+V
CC
2, R
L
=∞
Min. Typ. Max. Units
90
2.8
20
1.2
1.6
-0.5
0.005
750
500
1.2
1.6
-1.0
1.0
0.15
7.5
0.9
±100
35
-250
-250
-500
70
0.5
2.0
-500 -750
2.0
-5.0
1.0
20
105
mA
V
kΩ
V
V
uA
uA
uA
uA
nA
V
V
uA
uA
V
V
V
mV
mV
uA
uA
uA
Video output blanking voltage
Contrast control input current
Drive control input current
Cutoff control input current
MITSUMI
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
AC Electrical Characteristics
Item
Video amp gain
Gain attenuation 1
Gain attenuation 2
Drive control range
Gain matching
Gain change between amps
Gain attenuation matching
Video amp frequency bandwidth
Output rise time
Output fall time
Crosstalk 1
Crosstalk 2
Blanking output fall time
Blanking output fall time
Back-porch clamping pulse width
(Ta=25°C, V
CC
=12V, S1~3=ON, S4, 5=1, S6=2)
Measurement conditions
V
IN
=635mV
P-P
V12=4V, V
DRV
=4V
V
IN
=635mV
P-P
, V12=2V
V
IN
=635mV
P-P
, V12=0.5V
V
DRV
=0~4V, V12=4V
V
DRV
=V12=4V
V12=4~2V
V
OUT
=1V
P-P
V
OUT
=4V
P-P
, V
DRV
=V12=4V
V
OUT
=4V
P-P
V
OUT
=4V
P-P
V12=4V
V12=4V
V
OUT
=1V
P-P
, S4=2
V
OUT
=1V
P-P
, S4=2
Min. Typ. Max. Units
5.4
7.0
V/V
14.6 16.9
dB
-6
dB
-38
dB
6
dB
0.3
dB
0.1
dB
1
%
85
MHz
4.3
nS
4.3
nS
-70
dB
-50
dB
7
nS
7
nS
nS
Symbol
A
V
max.
A
V
1
A
V
2
A
VDR
A
VMAT
A
VM
1
THD
f
BW
tr
tf
V
SEP
1
V
SEP
2
t
rBLK
t
fBLK
t
PW
Measuring Circuit
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
