MITSUMI MM1205

85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
MITSUMI
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
MM1207
MM1205
Video amp band
85MHz
130MHz
Output rise time
4.3nS
2.6nS
Output fall time
4.3nS
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 (4VP-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)
7VP-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
Block Diagram
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
MITSUMI
Pin Description
Pin no.
1, 2
Pin name
CONTRAST CAP
Internal equivalent circuit diagram Pin no.
Pin name
------------------------------------------------------ ------------------------------------------------
13
BLANK GATE
14
CLAMP GATE
15
B DRIVE ADJ
18
G DRIVE ADJ
28
R DRIVE ADJ
------------------------------------------------------------- ----------------------------------------------------
3, 11
VCC1
22, 25
4
R VIDEO IN
6
G VIDEO IN
9
B VIDEO IN
5
R CLAMP CAP
16
B CUT-OFF ADJ
8
G CLAMP CAP
19
G CUT-OFF ADJ
10
B CLAMP CAP
27
R CUT-OFF ADJ
17
R VIDEO OUT
20
G VIDEO OUT
26
B VIDEO OUT
23
VCC2
7, 21
GND
24
12
CONTRAST
Internal equivalent circuit diagram
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
MITSUMI
Absolute Maximum Ratings
(Ta=25°C)
Item
Storage temperature
Operating temperature
Power supply voltage
Pin input voltage
Video output current
Allowable loss
Electrostatic breakdown 1
Electrostatic breakdown 2
Pin temperature
Symbol
TSTG
TOPR
VCC
VIN
IO
Pd
Recommended Operating Conditions
Item
Symbol
Operating voltage
VCC
DC Electrical Characteristics
Ratings
-65~+150
-20~+80
13.5
GND <= VIN <= VCC
28
2.5
2
1
265
Units
°C
°C
V
V
mA
W
kV
kV
°C
(Ta=25°C)
Min. Typ. Max. Units
10.8
12.0
13.2
V
(Ta=25°C, VCC=12V, V12=4V, V14=0V, VC-O=1V, VDRV=4V, S1~3=OFF, S4~6=1)
Item
Symbol
Measurement conditions
Consumption current
ICC1
VCC1+VCC2, RL=∞
Video amp input voltage
VB
2.8
Video input resistance
RB
20
Clamp gate input voltage L
VCGL
Clamp gate input voltage H
VCGH
Clamp gate input current L
ICGL
Clamp gate input current H
ICGH
Clamping capacitor charge current
ICL+
500
750
uA
Clamping capacitor discharge current
ICL-
-500 -750
uA
Clamping capacitor bias discharge current
ICLB
S5=2
500
nA
Blanking gate input voltage L
VBGL
S4=2
1.2
V
Blanking gate input voltage H
VBGH
S4=2
Blanking gate input current L
IBGL
V13=0V, S4=2
-5.0
-1.0
uA
Blanking gate input current H
IBGH
V13=12V, S4=2
0.01
1.0
uA
Video output voltage L
VOL
VC-O=0V
Video output voltage H
VOH
VC-O=9V
Video black level output voltage
VO
Video
black level output voltage
Video output blanking voltage
Min. Typ. Max. Units
90
0.8
105
mA
V
20
1.2
kΩ
V
1.6
2.0
V
V14=0V
-0.5
-5.0
uA
V14=12V
0.005
1.0
uA
0.8
1.6
0.15
7.0
2.0
0.5
V
V
7.5
V
VC-O=1V
0.9
V
VO
VC-O=1V
±100
mV
VOBL
V13=0V
35
70
mV
Contrast control input current
I12
V12=0~4V
-250
uA
Drive control input current
IDRV
VDRV=0~4V
-250
uA
Cutoff control input current
IC-O
VC-O=0~4V
-500
uA
85MHz RGB Video Amplifier/130MHz RGB Video Amplifier MM1207, 1205
MITSUMI
AC Electrical Characteristics
(Ta=25°C, VCC=12V, S1~3=ON, S4, 5=1, S6=2)
Item
Symbol
Video amp gain
AV max.
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
Measuring Circuit
AV1
AV2
AVDR
AVMAT
AVM1
THD
fBW
tr
tf
VSEP1
VSEP2
trBLK
tfBLK
tPW
Measurement conditions
VIN=635mVP-P
V12=4V, VDRV=4V
VIN=635mVP-P, V12=2V
VIN=635mVP-P, V12=0.5V
VDRV=0~4V, V12=4V
VDRV=V12=4V
V12=4~2V
VOUT=1VP-P
VOUT=4VP-P, VDRV=V12=4V
VOUT=4VP-P
VOUT=4VP-P
V12=4V
V12=4V
VOUT=1VP-P, S4=2
VOUT=1VP-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