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MM1381 Schematic ( PDF Datasheet ) - MITSUMI

Teilenummer MM1381
Beschreibung RGB Video Amplifier with OSD Input
Hersteller MITSUMI
Logo MITSUMI Logo 




Gesamt 10 Seiten
MM1381 Datasheet, Funktion
MITSUMI
RGB Video Amplifier with OSD Input MM1381, 1382, 1383
RGB Video Amplifier with OSD Input
Monolithic IC MM1381, 1382, 1383
Outline
MM1381XD, MM1382XD and MM1383XD are wideband RGB video amplifiers with OSD input, developed for
use in monitors. The main differences between them are video amp bandwidth and output rise time, and
output fall time.
Model
Video amp band
Output rise time
Output fall time
MM1381
85MHz
3.5nS
4.5nS
MM1382
110MHz
3.0nS
4.0nS
MM1383
140MHz
2.3nS
3.3nS
MM1382XD is described here as the representative model.
MM1382 is a wideband video amp system with OSD input, developed for use in high resolution RGB
monitors. MM1382 has three matched video amps with a blanking function. All DC control input is high
impedance, and the operating range is set for easy interface with serial bus control systems, at 0~4V. The
OSD section has three TTL inputs and DC contrast control. OSD signals have TTL input interface, and these
signals are made internally so that OSD input low level and video black level are the same. OSD display color
balance follows video signal color balance control adjustment. In addition, MM1382 has a built-in spot-killer
circuit that protects the CRT when monitor power is turned off.
Features
1. Built-in wideband video amp
110MHz @ -3dB (4VP-P output)
2. OSD input has TTL interface
bandwidth 50MHz
3. Output voltage less than 0.1V for blanking
4. High-speed switching between VIDEO/OSD
5. Each channel has an independent drive pin for color balance adjustment
6. Built-in high impedance DC contrast control, 0~4V (> 40dB range)
7. Built-in high impedance DC drive control, 0~4V (±3dB range)
8. Built-in high impedance DC OSD contrast control, 0~4V (> 40dB range)
9. 7VP-P output swing (band slightly attenuated)
10Output can drive hybrid or discrete CRT drivers directly
Package
DIP-28C (MM1381XD, MM1382XD, MM1383XD)
Applications
1. High resolution RGB CRT monitors with OSD function
2. AGC amps for video
3. Gain and DC offset control
4. LCD or CCD system interface amp






MM1381 Datasheet, Funktion
MITSUMI
RGB Video Amplifier with OSD Input MM1381, 1382, 1383
*AC Electrical Characteristics 14 (Except where noted otherwise, Ta=25°C, VCC1=VCC2=12V, V13=4V, V14=4V, VDRV=4V,
VCG=0V, VBG=4V, V4=0V. For AC tests, adjust output pins 16, 20 and 23 to 4V by hand.)
Item
Symbol
Video amp gain
AV max.
Contrast attenuation 1
Contrast attenuation 2
Drive attenuation 1
Drive attenuation 2
Gain matching
Gain change between amps
Video amp distortion
AV1
AV2
AVD1
AVD2
AVMAT
AVMAT
THD
Video amp frequency bandwidth
fBW
Video output rise time
Video output fall time
Video amp isolation 1
Video amp isolation 2
Blanking output rise time
Blanking output fall time
Blanking rise delay time
Blanking fall delay time
Back-porch clamping pulse width
tr
tf
VSEP1
VSEP2
tr-BLK
tf-BLK
trD-BLK
tfD-BLK
tpw
Measurement conditions
V13=4V, VDRV=4V
VIN=400mVP-P
V13=2V
V13=0.25V
VDRV=2V
VDRV=0.25V
*V13=VDRV=4V 8
*V13=4V~2V 9
VO=1VP-P, f=10kHz
V13=4V, VDRV=3V
*VO=4VP-P 10, 11
*VO=4VP-P 10
*VO=4VP-P 10
*V13=4V 12
*V13=4V 10, 12
*VO=1VP-P 10
*VO=1VP-P 10
VO=1VP-P
VO=1VP-P
*13
Min.
7.5
16.9
Typ. Max. Units
10.0 V/V
20.0 dB
-6 dB
-40 dB
-4.5 dB
-11 dB
±0.3 dB
±0.2 dB
1%
110 MHz
3.0
4.0
-70
-50
8
14
23
20
200
nS
nS
dB
dB
nS
nS
nS
nS
nS
OSD Electrical Characteristics
(Except where noted otherwise, Ta = 25°C, VCC1=VCC2=12V,
V13=4V, V14=4V, VDRV=4V, VCG=4V, VBG=4V, V4=4V, VC-o=1V)
Item
Input voltage OSD L
Input voltage OSD H
OSD selection input voltage L
OSD selection input voltage H
OSD selection input current L
OSD selection input current H
OSD black level output voltage
OSD output voltage VP-P
OSD output VP-P attenuation
Output adjustment between channels
Output fluctuation between channels
Video to OSD switching time
OSD-to-video switching time
Video to OSD transfer delay
OSD-to-video transport delay
OSD rise time
OSD fall time
OSD rise delay time
OSD fall delay time
Video isolation rate to OSD1
Video isolation rate to OSD2
Symbol
VOSDL
VOSDH
V4L
V4H
I4L
I4H
VOUT-OSD
VOSD-O
VOSD-O
VOSD-OMAT
VOSD-OMAT
tr-OSDSW
tr-OSDSW
trD-OSDSW
tfD-OSDSW
tr-OSD
tf-OSD
trD-OSD
tfD-OSD
Vfeed1
Vfeed2
Measurement conditions
V4=0V
V4=12V
VC-O=1V
V14=4V, VDRV=2V
V14=2V, VDRV=2V
V14=4V, VDRV=2V
V14=4V~2V, VDRV=2V
*V1=V2=V3=4V 15
*V1=V2=V3=4V 15
V1=V2=V3=V13=V14=4V
V1=V2=V3=V13=V14=4V
V14=4V
V14=4V
V14=4V
V14=4V
V14=4V, V1=V2=V3=0V
V14=4V, V1=V2=V3=0V
Min.
0.4
0.8
Typ.
1.2
1.6
1.2
1.6
-3.0
0.01
±85
4.5
50
±2.0
±3.5
4
11
11
12
4
10
6.5
9
-70
-60
Max. Units
V
2.0 V
V
2.0 V
-5.0 uA
2.0 uA
±175 mV
VP-P
30 %
%
%
nS
nS
nS
nS
nS
nS
nS
nS
dB
dB

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