M52734SP Datasheet PDF - Mitsubishi
| Part Number | M52734SP | |
| Description | 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING | |
| Manufacturers | Mitsubishi | |
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MITSUBISHI ICs (Monitor)
M52734SP
3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING
DESCRIPTION
The M52734SP is a semiconductor integrated circuit amplifies
video signals, having a 3-channel amplifier with a band width of
130MHz. The circuit also features the OSD mixing function.
The circuit is most useful with high resolution displays that have
OSD, and its function are available for each channel, including OSD
blanking, OSD mixing, wide-band amplification, contrast control
(main and sub), and brightness control.
FEATURES
• Frequency band width: RGB................................130MHz (3VP-P)
OSD..............................................50MHz
Input :RGB.............................................................0.7VP-P (typ.)
OSD...............................................3.0VP-P min. (positive)
BLK ...............................................3.0VP-P min. (positive)
Output :RGB...........................................................4.0VP-P (max.)
OSD...........................................................4.0VP-P (max.)
• To adjust contrast, two types of controls are provided, main and
sub. With the main control, the contrast of the 3-channels can be
changed simultaneously. Sub controls are used to adjust the
contrast of a given channel individually. The control terminals can
be controlled by applying a voltage of 0 to 5V.
• The DC power remains stable at the IC output terminal because
a feedback circuit is built in.
APPLICATION
Display monitor
RECOMMENDED OPERATING CONDITION
Supply voltage range....................................................11.5 to 12.5V
Rated supply voltage................................................................12.0V
PIN CONFIGURATION (TOP VIEW)
OSD BLK IN 1
VCC1 (B) 2
INPUT (B) 3
SUB CONTRAST (B) 4
OSD IN (B) 5
GND1 (B) 6
VCC1 (G) 7
INPUT (G) 8
SUB CONTRAST (G) 9
OSD IN (G) 10
GND1 (G) 11
VCC1 (R) 12
INPUT (R) 13
SUB CONTRAST (R) 14
OSD IN (R) 15
GND1 (R) 16
MAIN CONTRAST 17
CP IN 18
36 OSD ADJUST
35 OUTPUT (B)
34 VCC2 (B)
33 HOLD (B)
32 NC
31 GND2 (B)
30 OUTPUT (G)
29 VCC2 (G)
28 HOLD (G)
27 NC
26 GND2 (G)
25 OUTPUT (R)
24 VCC2 (R)
23 HOLD (R)
22 NC
21 GND2 (R)
20 NC
19 BRIGHTNESS
Outline 36P4E
NC : NO CONNECTION
BLOCK DIAGRAM
OUTPUT (B) HOLD (B)
GND2 (B)
VCC2 (G)
NC
OUTPUT (R) HOLD (R)
GND2 (R) BRIGHTNESS
OSD ADJUST VCC2 (B)
NC
OUTPUT (G) HOLD (G)
GND2 (G)
VCC2 (R)
NC
NC
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
B
AMP
B
OSD Mix
B
Brightness
B
Hold
B
Blanking
G
AMP
G
OSD Mix
G
Brightness
G
Hold
G
Blanking
R
AMP
R
OSD Mix
R
Brightness
R
Hold
R
Blanking
B
Clamp
B
Contrast
G
Clamp
G
Contrast
R
Clamp
R
Contrast
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
OSD
BLK IN
INPUT (B)
OSD IN
(B)
VCC1 (G)
SUB
GND1 (G)
CONTRAST(G)
INPUT (R)
OSD IN (R)
MAIN
CONTRAST
VCC1 (B)
SUB
GND1 (B)
CONTRAST(B)
INPUT (G) OSD IN (G)
VCC1 (R)
SUB
CONTRAST(R)
GND1 (R)
CP IN
1
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MITSUBISHI ICs (Monitor)
M52734SP
3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING
3. After setting VTR (VTG or VTB), increase the SG6 amplitude
gradually, starting from 700mV. Measure the amplitude when the
top and bottom of the waveform output at T.P25 (30 or starts
becoming distorted synchronously.
Vimax Maximum input
Measuring conditions are the same as those used above, except
that the setting of V17 is changed to 2.5V as specified in
Supplementary Table. Increase the input signal amplitude gradually,
starting from 700mVP-P. Measure the amplitude when the output
signal starts becoming distorted.
Gv Maximum gain
∆Gv Relative maximum gain
1. Input SG6 to pin 13 (8 or 3), and read the amplitude at output
T.P25 (30 or 35). The amplitude is called VOR1 (VOG1 or VOB1) .
2. Maximum gain GV is calculated by the equation below:
VOR1 (VOG1, VOB1) [VP-P]
GV=20LOG
0.7
[VP-P]
3. Relative maximum gain ∆G is calculated by the equation below:
∆GV=VOR1/VOG1, VOG1/VOB1, VOB1/VOR1
VCR1 Contrast control characteristics (typical)
∆VCR1 Contrast control relative characteristics (typical)
1. Measuring conditions are as given in Supplementary Table.
The setting of V17 is changed to 4V.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called VOR2 (VOG2 or VOB2).
3. Contrast control characteristics VCR1 and relative characteristics
∆VCR1 are calculated, respectively, by the equations below:
VOR2 (VOG2, VOB2) [VP-P]
VCR1=20LOG 0.7 [VP-P]
∆VCR1=VOR2/VOG2, VOG2/VOB2, VOB2/VOR1
VCR2 Contrast control characteristics (minimum)
∆VCR2 Contrast control relative characteristics (minimum)
1. Measuring conditions are as given in Supplementary Table.
The setting of V17 is changed to 1.0V.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called VOR3 (VOG3 or VOB3), and is treated as VCR2.
3. Contrast control relative characteristics ∆VCR2 are calculated by
the equation below:
∆VCR2=VOR3/VOG3, VOG3/VOB3, VOB3/VOR3
VSCR1 Sub contrast control characteristics (typical)
∆VSCR1 Sub contrast control relative characteristics (typical)
1. Set V4, V9 and V14 to 4.0V. Other conditions are as given in
Supplementary Table.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called VOR4 (VOG4 or VOB4).
3. Sub contrast control characteristics VSCR1 and relative
characteristics ∆VSCR1 are calculated, respectively, by the
equations below:
VSCR1=20LOG VOR4 (VOG4, VOB4) [VP-P]
0.7 [VP-P]
∆VSCR1=VOR4/VOG4, VOG4/VOB4, VOB4/VOR4
VSCR2 Sub contrast control characteristics (minimum)
∆VSCR2 Sub contrast control relative characteristics (minimum)
1. Set V4, V9 and V14 to 1.0V. Other conditions are as given in
Supplementary Table.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called VOR5 (VOG5 or VOB5).
3. Relative characteristics ∆VSCR2 are calculated by the equation
below:
∆VSCR2=VOR5/VOG5, VOG5/VOB5, VOB5/VOR5
VSCR3 Contrast/sub contrast control characteristics (typical)
∆VSCR3 Contrast/sub contrast control relative
characteristics (typical)
1. Set V4, V9, V14 and V17 to 3.0V. Other conditions are as given
in Supplementary Table.
2. Measure the amplitude at T.P25 (30 or 35). The measured value
is called VOR6 (VOG6 or VOB6).
VOR6 (VOG6, VOB6) [VP-P]
VCR3=20LOG
0.7
[VP-P]
∆VCR3=VOR6/VOG6, VOG6/VOB6, VOB6/VOR6
VB1 Brightness control characteristics (maximum)
∆VB1 Brightness control relative characteristics (maximum)
1. Measuring conditions are as given in Supplementary Table.
2. Measure the output at T.P25 (30 or 35) with a voltmeter.
The measured value is called VOR7 (VOG7 or VOB7), and is treated
as VB1.
3. To obtain brightness control relative characteristics, calculate the
difference in the output between the channels, using VOR7, VOG7
and VOB7.
∆VB1=VOR7-VOG7
=VOG7-VOB7
=VOB7-VOR7
[mV]
5
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| Information | Total 13 Pages | |
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| Download | [ M52734SP.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| M52734SP | The function is 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING. Mitsubishi | |
| M52734SP | The function is 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING. Mitsubishi | |
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