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PDF M52337SP Data sheet ( Hoja de datos )
| Número de pieza | M52337SP | |
| Descripción | 3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING FUNCTION FOR HIGH-RESOLUTION COLOR DISPLAYS | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M52337SP (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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MITSUBISHI ICs (Monitor)
M52337SP
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING FUNCTION
FOR HIGH-RESOLUTION COLOR DISPLAYS
DESCRIPTION
M52337SP is a video preamplifier provided with OSD mixing
function, and a semi-conductor IC having three channels of a built-
in amplifier in the 110MHz band.
Each channel has the functions of OSD blanking, OSD mixing,
wideband amplifier, main and sub-contrast control, and main and
sub brightness. Accordingly, it is structured to best fit the OSD-
provided high-resolution display.
FEATURES
• Frequency band: RGB ...................................110MHz (at 3VP-P)
OSD......................................................50MHz
Input : RGB...........................................................0.7VP-P (Typ.)
OSD.............................3.0 to 5.0 VP-P (positive polarity)
BLK..........................4.0 VP-P or more (positive polarity)
Output : RGB........................................................4.0 VP-P (max.)
OSD..............................3.5 VP-P (max., black level=2V)
• Each control of contrast and brightness includes a main which
allows three channels to be variable simultaneously, and a sub
which allows each channel to be variable independently. Each
control pin can be controlled within a range of 0 to 5V.
• A built-in feedback circuit inside IC provides a stable DC level at
IC output pins.
• Pin arrangement of M52337SP is the same as that of M52321SP.
APPLICATION
CRT display
RECOMMENDED OPERATING CONDITION
Supply voltage range...........................................Vcc=11.5 to 12.5V
Rated supply voltage........................................................Vcc=12.0V
PIN CONFIGURATION (TOP VIEW)
BLK IN 1
VCC1 (B) 2
INPUT (B) 3
SUB CONTRSAST (B) 4
OSD IN (B) 5
GND 1 (B) 6
VCC1 (G) 7
INPUT (G) 8
SUB CONTRST (G) 9
OSD IN (G) 10
GND 1 (G) 11
VCC1 (R) 12
INPUT (R) 13
SUB CONTRAST (R) 14
OSD IN (R) 15
GND 1 (R) 16
MAIN CONTRAST 17
CP IN 18
36 OSD ADJUST
35 OUTPUT (B)
34 VCC2 (B)
33 HOLD (B)
32 SUB BRIGHTNESS (B)
31 GND2 (B)
30 OUTPUT (G)
29 VCC2 (G)
28 HOLD (G)
27 SUB BRIGHTNESS (G)
26 GND2 (G)
25 OUTPUT (R)
24 VSS2 (R)
23 HOLD (R)
22 SUB BRIGHTNESS (R)
21 GND2 (B)
20 NC
19 MAIN BRIGHTNESS
Outline 36P4E
NC:NO CONNECTION
1
1 page  
MITSUBISHI ICs (Monitor)
M52337SP
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING FUNCTION
FOR HIGH-RESOLUTION COLOR DISPLAYS
ELECTRICAL CHARACTERISTICS (cont.)
Symbol
Parameter
OSDth
V1th
OSD input threshold voltage
BLK input threshold voltage
Test
point
T.P35
T.P30
T.P25
T.P35
T.P30
T.P25
Input
SW13 SW8 SW13
R-ch G-ch B-ch
aaa
___
bbb
SG7 SG7 SG7
External power supply(V) Pulse input
Limits
V4
V17
V19
V32
V36
SW18
SW1
5,10,15
Min.
Typ.
Max.
Unit
5
5
2
5
1.7
b
SG6
b
SG8
1.7
2.5
3.5
VDC
5
5
2
5
-
b
SG6
SW1 only
b
SG8
1.7
2.5
3.5
VDC
ELECTRICAL CHARACTERISTICS TEST METHOD
SW/NO of signal input pin and SW/NO of pulse input pin, which
have already been described in the electrical characteristics table,
are omitted, and SW/NO of external power supply will only be
described as follows:
Sub-brightness voltages, V32, V27 and V22, which are always set
to the identical value, are represented by V32 in the electrical
characteristic table. In addition, sub-contract voltages, V4, V9 and
V14, which are also set to the identical value, are represented by V4
in the table.
Icc circuit current
Conditions shall be as specified in the electrical characteristic table,
and take measurements with ammeter A when SW1 is turned to the
b side.
Vomax output dynamic range
Follow the following procedure to set V19.
1. Input SG1 to pin 13 (pin 8 or pin 3 ), gradually raise V19, and
read V19 voltage when the upper part of the output waveform of
T.P25 (T.P30 or T.P35) is distorted to let the reading be VTR1
(VTG1 or VTB1).
In addition, gradually reduce V19 conversely, and read V19
voltage when the lower part of the output waveform of T.P35
(T.P30 or T.P25) is distorted to let the reading be VTR2 (VTG2 or
VTB2).
(V)
5.0
0.0
Output waveform of T.P25 (T.P30 and T.P35 are also the same)
2. From the above, VT (VTR, VTG or VTB) is found by
VTR1(VTG1, VTB1)+VTR2 (VTG1, VTB1)
VTR (VTG, VTB)=
2
which should be used properly depending upon output pins.
In measuring, useT.P25 VTR1,T.P30 VTG1 and T.P35 VTB1.
3. After setting VTR (VTG or VTB), gradually increase SG1 amplitude
from 700mV, and take measurements of output amplitude at a
point where the upper and lower parts of T.P25 (T.P30 or T.P35)
output waveform start to be distorted simultaneously.
Vimax max. allowable input
From the status of Vomax, change V17 into 2.5V as specified in the
electrical characteristics table, gradually increase input signal
amplitude from 700m VP-P, and read input signal amplitude at a
point where output signal starts to be distorted.
GV and ∆GV max gain and relative max. gain
1. Input SG1 to pin 13 (pin 8 or pin 3 ), read the output amplitude
of T.P25 (T.P30 or T.P35) to let the reading be VOR1 (VOG1 or
VOB1).
2. Max. gain GV is found by:
VOR1(VOG1, VOB1)
GV=20log
0.7
[VP-P]
[VP-P]
3. Relative max. gain ∆G is found by
∆GV=VOR1/VOG1, VOG1/VOB1, VOB1/VOR1
through respective calculation.
VCR1 main contrast control characteristics (at typ.) and
∆ VCR1 relative main contrast control characteristics (at typ.)
1. Follow the electrical characteristic table except changing V17 to
2.0V.
2. Read the output amplitude of T.P25 (T.P30 or T.P35) at this time
to let the reading be VOR2 (VOG2 or VOB2).
3. Contrast control characteristics VCR1 and relative contrast control
characteristics ∆VCR1 are found by
VCR1=20log
VOR2(VOG2, VOB2)
0.7
[VP-P]
[VP-P]
∆VOR1=VCR2/VOG2, VOG2/VOB2, VOB2/VOR2
through respective calculation.
VCR2 main contrast control characteristics (at min.) and
∆VCR2 relative main contrast control characteristics (at min.)
1. Follow the electrical characteristic table except changing V17 to
1.0V.
2. Read the output amplitude of T.P25 (T.SP30 or T.P35) to let the
reading be VOR3 (VOG3 or VOG3) to let it be VCR2, respective
3. Relative contrast control characteristic ∆VCR2 is found by:
∆VCR2=VOR3/VOG3, VOG3/VOB3, VOB3/VOR3
5
5 Page 
OUTPUT PULSE RESPONSE
MITSUBISHI ICs (Monitor)
M52337SP
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING FUNCTION
FOR HIGH-RESOLUTION COLOR DISPLAYS
RISE AND FALL OF OUTPUT WAVEFORM (3VP-P)
5V
Output
680Ω
∗500mV
2ns
Output level =3VP-P
Black level =2VDC
2V
RISE AND FALL OF BLANKING
5V
5V
2V
BLK
∗500mV
2ns
2V
RISE AND FALL OF OSD
∗500mV
2ns
5V
5V
2V
OSD
Video IN : No input
2V
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet M52337SP.PDF ] | |
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