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MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION DESCRIPTION
M52722SP is a video amplifier provided with OSD mixing function, and a semiconductor IC having three channels of a built-in wideband 180MHz amplifier. Each channel has the functions of OSD blanking, OSD mixing, retrace line blanking, wideband amplifier, main and sub contrast control, and main brightness. Accordingly, it is structured to best fit the OSD-provided high resolution display. .
PIN CONFIGURATION (TOP VIEW)
BLK IN(for OSD) 1 VCC1 (B) 2 INPUT (B) 3 SUB CONTRAST (B) 4 OSD IN (B) 5 GND 1 (B) 6 36 MAIN OSD ADJUST 35 OUTPUT (B) 34 VCC2 (B) 33 HOLD (B) 32 SUB OSD ADJUST (B) 31 GND2 (B) 30 OUTPUT (G)
FEATURES
VCC1 (G) 7
*
M52722SP
*
*
Frequency band : RGB...................................180MHz (at 3V P-P ) OSD....................................................50MHz Input: RGB..........................................0.7V P-P (Typ.) OSD......................................more than 3VP-P (positive polarity) BLK (for OSD)......................more than 3VP-P (positive polarity) Retrace line BLK..................more than 3V P-P (positive polarity) Output: RGB..........................................4.0V P-P (max.) OSD..........................................4.0VP-P (max.) Each control of contrast and OSD adjustment includes a main which allows 3 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.
INPUT (G) 8 SUB CONTRAST (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
29 VCC2 (G) 28 HOLD (G) 27 SUB OSD ADJUST (G) 26 GND2 (G) 25 OUTPUT (R) 24 VCC2 (R) 23 HOLD (R) 22 SUB OSD ADJUST (R) 21 GND2 (R) 20 BLK IN (for retrace) 19 BRIGHTNESS
Outline 36P4E
APPLICATION
CRT display
RECOMMENDED OPERATING CONDITION
Supply voltage range...........................................Vcc=11.5 to 12.5V Rated supply voltage......................................................Vcc=12.0V
1
BLOCK DIAGRAM
MAIN OSD ADJUST (G) OUTPUT (G) VCC2 (R) OUTPUT BRIGHTNESS 20 19 26 25 24 23 22 21 (R) HOLD (R) GND2 30 29 28 27 (B) GND2 32 31 (G) SUB OSD ADJUST (G) HOLD (G) GND2 (R) VCC2 BLK IN (for retrace)
(B) VCC2
(B) SUB OSD ADJUST
(R) SUB OSD ADJUST
(B) OUTPUT
(B) HOLD
36
35
34
33
B-ch BLK G-ch BLK G BRIGHTNESS G BRIGHTNESS R-ch BLK
B BRIGHTNESS
B AMP G AMP R HOLD G HOLD
B HOLD R AMP
B OSD MIX B OSD BLANKING
B OSD BLANKING
G OSD MIX R OSD MIX
R OSD BLANKING
B CLAMP G CLAMP G CONTRAST
B CONTRAST
R CLAMP
R CONTRAST
1 (G) VCC1 (G) SUB CONTRAST
2
3
4
5
6
7
8
9
10
11 (R) GND2
12
13 (R) INPUT
14
15 (R) OSD IN
16
17 MAIN CONTRAST
18
BLK IN (for OSD) (B) GND2 (G) INPUT
(B) INPUT
(B) OSD IN
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION
(B) VCC1
(B) SUB CONTRAST
(G) OSD IN
(R) VCC1
(R) SUB CONTRAST
(R) GND2
CP IN
2
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION ABSOLUTE MAXIMUM RATINGS (Ta=25C)
Symbol VCC Pd Topr Tstg' Vopr Vopr' Sarge Parameter Supply voltage Power dissipation Operating temperature Storage temperature Recommended operating supply voltage Recommended operating supply voltage range Surge pressure Ratings 13.0 2403 -20 to +85 -40 to +150 12.0 11.5 to 12.5 200 Unit V mW C C V V V
ELECTRICAL CHARACTERISTICS (Vcc=12V, and Ta=25C, unless otherwise noted)
Symbol Icc Vomax Vimax Gv Gv VCR1 VCR1 VCR2 VCR2 VSCR1 VSCR1 VSCR2 VSCR2 VSCR3 Parameter Circuit current Output dynamic range Maximum allowable input Maximum gain Relative maximum gain Contrast control characteristics (at typ.) Relative contrast control characteristics (at typ.) Contrast control characteristics (at min.) Relative contrast control characteristics (at min.) Sub-contrast control characteristics (at typ.) Sub-contrast control characteristics (at typ.) Sub-contrast control characteristics (at min.) Relative sub-contrast control characteristics (at min.) Contrast and sub-contrast control characteristics (both main and sub at typ.) Relative contrast and subcontrast control characteristics (both main and sub at typ.) Brightness control characteristics (at max.) Relative brightness control characteristics (at max.) Brightness control characteristics (at typ.) Relative brightness control characteristics (at typ.) Brightness control characteristics (at min.) Relative brightness control characteristics (at min.)
T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25
Input External power supply(v) Pulse input Limits Test Unit SW1 point SW3 SW8 SW13 V4 V17 V19 V32 V36 SW18 5,10,15 SW20 Min. Typ. Max. R-ch G-ch B-ch
A T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25
a _
a _
a _
5 5 5 5
5 5 2.5 5
5 Variable 2 2
5 -
2 -
b SG4 b SG4 b SG4 b SG4
a _ a _ a _ a _
a _ a _ a _ a _
70 6.0 1
100 140 7.5 1.6 9.0 20 1.2
mA VP-P VP-P dB dB VP-P dB VP-P VP-P
b b b SG5 SG5 SG5 b b b SG5 SG5 SG5 b b b SG5 SG5 SG5
15.4 17.4 0.8 1
Take the ratio of the above test values b b b SG5 SG5 SG5 5 4 2 b SG4 a _ a _
14.3 15.8 17.3 0.8 1 0.7 1 1.2 1.0 1.2
Take the ratio of the above test values b b b SG5 SG5 SG5 5 1 2 b SG4 a _ a _
0.4 0.8
Take the ratio of the above test values b b b SG5 SG5 SG5 4 5 2 b SG4 a _ a _
14.3 15.8 17.3 0.8 1 0.8 1 1.8 1.2 1.2 1.2 2.5
Take the ratio of the above test values b b b SG5 SG5 SG5 1 5 2 b SG4 a _ a _
0.4 0.8
Take the ratio of the above test values
T.P35 T.P30 T.P25
b b b SG5 SG5 SG5
3
3
2
-
-
b SG4
a _
a _
1.1
VSCR3 VB1 VB1 VB2 VB2 VB3 VB3
Take the ratio of the above test values
T.P35 T.P30 T.P25
0.8 a _ a _
1
1.2
-
a _
a _
a _
5
5
4
-
-
b SG4
3.0 -0.3
3.6 0 1.6 0 0.7 0
4.2 0.3 2.1 0.3 1.1 0.3
V V V V V V
Take the ratio of the above test values a _ a _ a _ 5 5 2 b SG4 a _ a _
1.1 -0.3
Take the ratio of the above test values a _ a _ a _ 5 5 1 b SG4 a _ a _
0.3 -0.3
Take the ratio of the above test values
3
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION ELECTRICAL CHARACTERISTICS (cont.)
Symbol FC1 FC1 FC1' FC1' FC2 FC2 C.T.1 C.T.1' C.T.2 C.T.2' C.T.3 C.T.3' Tr Tf V14th W14 PDCH PDCL OTr Parameter Frequency characteristics (f=50MHz at max.) Relative frequency characteristics (f=50MHz at max.) Frequency characteristics (f=180MHz at max.) Relative frequency characteristics (f=180MHz at max.) Frequency characteristics (f=180MHz at typ.) Relative frequency characteristics (f=180MHz at typ.) Crosstalk1(f=50MHz) Crosstalk1(f=180MHz) Crosstalk2(f=50MHz) Crosstalk2(f=180MHz) Crosstalk3(f=50MHz) Crosstalk3(f=180MHz) Pulse characteristics 1 Pulse characteristics 2 Clamping pulse threshold voltage Clamping pulse operation min. width Pedestal voltage temperature characteristics1 Pedestal voltage temperature characteristics2 OSD pulse characteristics 1
T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25
Input External power supply(v) Pulse input Limits Test Unit SW1 point SW3 SW8 SW13 V4 V17 V19 V32 V36 SW18 5,10,15 SW20 Min. Typ. Max. R-ch G-ch B-ch
T.P35 T.P30 T.P25
b b b SG1 SG1 SG1
5
Variable
-
-
-
c _
a _
a _
-2 -1
0 0 -2.3 0 0 0 -30 -20 -30 -20 -30 -20 2 2 1.5 0.5 0 0 3
2.5 1 3 1 3 1 -20 -15 -20 -15 -20 -15 2.5 0.3 0.3 6
dB dB dB dB dB dB dB dB dB nsec nsec VDC sec VDC VDC nsec
Take the ratio of the above test values b b b SG2 SG2 SG2 5 Variable c _ a _ a _
-3 -1
Take the ratio of the above test values b b b SG2 SG2 SG2 5 Variable c _ a _ a _
-3 -1
Take the ratio of the above test values b SG1 b SG2 a _ a _ a _ a _ a _ a _ b SG1 b SG2 a _ a _ a _ a _ a _ a _ b SG1 b SG2 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 c _ c _ c _ c _ c _ c _ b SG4 b SG4 b SG4 b SG4 b SG4 b SG4 a _ a _ a _ a _ a _ a _ a _ a _ a _ a _ a _ a _
SW1 is a, and others b.
a _ a _ a _ a _ a _ a _ a _ a _ a _ a _ a _ a _ a _ a _ a _
1.0 0.2 -0.3 -0.3 -
b b b SG3 SG3 SG3 b b b SG3 SG5 SG5 b b b SG5 SG5 SG5 b b b SG5 SG5 SG5 b b b SG5 SG5 SG5 b b b SG5 SG5 SG5 a _ a _ a _ a _ a _ a _ a _ a _ a _
Vari- Variable able Vari- Variable able 5 5 5 5 5 2 2 2 2 Variable Variable 2
Vari- b able SG4 Vari- b able SG4 4
SG6
SW1 is a, and others b.
OTf Oaj1 Oaj1 Oaj2 Oaj2 OSDth V1th
OSD pulse characteristics 2 Main OSD adjustment control characteristics (at max.) Relative main OSD adjustment control characteristics (at max.) Main OSD adjustment control characteristics (at min.) Relative main OSD adjustment control characteristics (at min.) OSD input threshold voltage BLK input threshold voltage
5 5
5 5
5 5
3.7 0.8
3 4.3 1 0 1 2.5 2.5
6 5.0 1.2 0.5 1.2 3.5 3.5
nsec VP-P VP-P VDC VDC
SG6 b b SG4 SG6
Take the ratio of the above test values
T.P35 T.P30 T.P25
a _
a _
a _
5
5
2
5
0
b b SG4 SG6
a _
0.8
Take the ratio of the above test values
T.P35 T.P30 T.P25 T.P35 T.P30 T.P25
a _
a _
a _
5 5
5 5
2 2
5 5
5 5
b SG4
SW1 is a, and others b.
SG6
SW1 is
a _ a _
1.7 1.7
b b b SG5 SG5 SG5
a, and b others b. SG4 SG6
4
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION ELECTRICAL CHARACTERISTICS (cont.)
Symbol SOaj1 SOaj2 HBLK HVth Parameter SUB OSD adjustment control characteristics (at typ.) SUB OSD adjustment control characteristics (at min.) Retrace line BLK characteristics Retrace line BLK input threshold value Input External power supply(v) Pulse input Limits Test Unit SW1 point SW3 SW8 SW13 V4 V17 V19 V32 V36 SW18 5,10,15 SW20 Min. Typ. Max. R-ch G-ch B-ch
T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25
a _ a _ a _ a _
a _ a _ a _ a _
a _ a _ a _ a _
5 5 5 5
5 5 5 5
2 2 2 2
2 0 0 0
5 5 0 0
b b SG4 SG6 b b SG4 SG6 a _ a _ a _ a _
a _ a _ b SG7 b SG7
1.6 0.5
2.2 0 0.2 1.5
2.6 0.5 0.5 2.5
VP-P VP-P VDC VDC
ELECTRICAL CHARACTERISTICS TEST METHOD
Note: 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:
Vimax maximum allowable input Change V17 to 2.5V, gradually increase input signal amplitude from 700m VP-P, and read input signal amplitude when output signal starts to be distorted. Gv and Gv maximum gain and relative maximum gain
Sub-OSD adjustment voltages, V32, V27 and V22, which are always set to the identical value, are represented by V32 in the electrical characteristics table. In addition, sub-contrast voltages, V4, V9 and V14, which are also set to the identical value, are represented by V4 in the electrical characteristics table. Icc circuit current Conditions shall be as specified in the electrical characteristics table, and take measurements with ammeter A when SWA is turned to the b side. Vomax output dynamic range Follow the following procedure to set V19. 1. Input SG5 to pin
13
1. Input SG5 to pin
13
(pin
8
or pin
3
), and read the output
amplitude of T.P25 (T.P30 or T.P35) at this time to let the reading be VOR1 (VOG1 or VOB1). 2. Maximum gain Gv is found by: VOR1(VOG1, VOB1) GV=20LOG 0.7
[VP-P] [VP-P]
3. Relative maximum gain G is found by GV=VOR1/VOG1, VOG1/VOB1, VOB1/VOR1 through respective calculation. VCR1 contrast control characteristics and VCR1 relative contrast control characteristics (at typ.) 1. Follow the electrical characteristics table except changing V17 to 4V. 2. Read the output amplitude of T.P25 (T.P30 or T.P35) at this time, and let the reading be VOR2 (VOG2 or VOB2). 3. Contrast control characteristics VCR1 and relative contrast control characteristics VCR1 is found by VOR2(VOG2, VOB2) VCR1=20LOG 0.7
[VP-P] [VP-P]
(pin
8
or pin
3
), gradually reduce V19, and
read the lower part voltage when the lower part of input waveform of T.P25 (T.P30 or T.P35) is distorted to let the reading be VOLR (VOLG or VOLB). 2. Then, gradually raise V19, and read the upper part voltage when the upper part of output waveform of T.P25 (T.P30 or T.P35) is distorted to let the reading be VOHR (VOHG or VOHB). 3. Vomax is found by: Vomax=VOHR(VOHG, VOHB)-VOLR(VOLG, VOLB)
(V)
VCR1=VOR1/VOG1, VOG1/VOB1, VOB1/VOR1 through respective calculation.
5.0
VCR2 contrast control characteristics and VCR2 relative contrast control characteristics (at min.) 1. Follow the electrical characteristics table except changing V17 to 1.0V. 2. Read the output amplitude of T.P25 (T.P30 or T.P35) at this time
0.0 T.P25 output waveform (T.P30 and T.P35 are also the same)
to let the reading be VOR3 (VOG3 or VOB3). This value represents VCR2. 3. Relative contrast control characteristics VCR2 is found by: VOR2 = VOR3/ VOG3,VOG3/ VOB3/ ,VOB3/VOR3
5
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION
VSCR1 sub-contrast control characteristics and VSCR1 relative sub-contrast control characteristics (at typ.) 1. Follow the electrical characteristics table except changing V4,V9 and V14 to 4.0V. 2. Read the output amplitude of T.P25 (T.P30 or T.P35) to let the reading be VOR4 (VOG4 or VOB4). 3. Sub-contrast control characteristics VSCR1 and relative subcontrast control characteristics VSCR1 are found by VOR4(VOG4, VOB4) VSCR1=20LOG 0.7
[VP-P] [VP-P]
3. For relative brightness control characteristics VB2, further, calculate difference between channels from VOR7, VOG7 or VOB7. VB2=VOR7' =VOG7' =VOB7' VOG7' VOB7' VOR7' [V]
VB3 brightness control characteristics and VB3 relative brightness control characteristics (at min.): 1. The conditions shall be as specified in the electrical characteristics table. 2. Use an ammeter to measure the output of T.P25 (T.P30 or T.P35) at this time to let the value be VOR7" (VOG7" or VOB7"). This value represents VB3. 3. For relative control characteristics VB3, further, calculate difference between channels from VOR7", VOG7" or VOB7". VB3=VOR7'' =VOG7'' =VOB7'' VOG7'' VOB7'' VOR7'' [V]
VSCR1=VOR4/VOG4, VOG4/VOB4, VOB4/VOR4 through respective calculation. VSCR2 sub-contrast control characteristics and VSCR2 relative sub-contrast control characteristics (at min.) 1. Follow the electrical characteristics table except changing V4, V9 and V14 to 1.0V. 2. Read the output amplitude of T.P25 (T.P30 or T.P35) at this time to let the reading be VOR5 (VOG5 or VOB5). This value represents VSCR2. 3. Relative sub-contrast control characteristics VSCR2 is found by: VSCR2=VOR5/VOG5, VOG5/VOB5, VOB5/VOR5 VSCR3 contrast and sub-contrast control characteristics and VSCR3 relative contrast and sub-contrast control characteristics (at typ.) 1. Follow the electrical characteristics table except changing V17 to 3.0V, and V4, V9 and V14 to 3.0V. 2. Read the output amplitude of T.P25 (T.P30 or T.P35) at this time, and let the reading be VOR6 (VOG6 or VOB6). This value represents VSCR3. 3. Relative sub-contrast control characteristics VSCR3 is found by: VSCR3 =VOR6/VOG6, VOG6/VOB6, VOB6/VOR6 VB1 brightness control characteristics and VB1 relative brightness characteristics (at max.) 1. The conditions shall be as specified in the electrical characteristics table. 2. Measure the output of T.P25 (T.P30 or T.P35) at this time with an ammeter, and let it be VOR7 (VOG7 or VOB7) to let it be VB1, respectively. 3. For relative control characteristics, further, measure difference between channels from VOR7, VOG7 or VOB7. VB1=VOR7 =VOG7 =VOB7 VOG7 VOB7 VOR7 [V]
FC1 and FC1 frequency characteristics 1 and relative frequency characteristics (f=50MHz at max.) and FC1' and FC1' frequency characteristics 1 and relative frequency characteristics (f=180MHz at max.) 1. The conditions shall be as specified in the electrical charactristics table. 2. Whilst SG1 and SG2 are used, input SGA first, apply voltage to the input pin (pin
3
, pin
8
or pin
13
) through about 2k of or pin ) to
resistor so as to provide 2.5V on the lower side of input signal. In addition, apply voltage to the hold pin (pin 23 , pin
28 33
ensure that the output wave of T.P25 (T.P30 or T.P35) will not be jammed so as to allow the lower side of the sine wave, an output signal to be 2V. Adjust the main contrast voltage (17V) at this time to allow the output amplitude to be 4.0VP-P. Then, change the input signal to SG1 or SG2 to measure each output amplitude. 3. Now, when letting this test value be output amplitude 4.0VP-P when SGA is input, output amplitude VOR 8 (VOG8 or VOB8) when SG1 is input, and output amplitude VOR9 (VOG9 or VOB9), frequency characteristics FC1 or FC1' is calculated from: VOR8(VOG8, VOB8) FC1=20LOG 4.0 VOR9(VOG9, VOB9) FC1'=20LOG 4.0 [VP-P] [VP-P] [VP-P] [VP-P]
VB2 brightness control characteristics and VB2 relative brightness control characteristics (at typ.) 1. The conditions shall be as specified in the electrical characteristics table. 2. Use an ammeter to measure the output of T.P25 (T.P30 or T.P35) at this time to let the value be VOR7 (VOG7 or VOB7). This value represents VB2.
4. For relative frequency bands FC1 and FC1', calculate difference in FC1 and FC1 for each channel.
6
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION
FC2 and FC2 frequency characteristics 2 and relative frequency characteristics 2 (f=180MHz at typ.) The same as for FC1, FC1 and FC1' applies except adjusting the main contrast voltage (V17) and allowing the amplitude of output 4. Pulse characteristics Tr and Tf: Tr (nsec) = Tf (nsec) = (Tr2)2 - (Tr1)2 (Tf2)2 - (Tf1)2
100% 90%
. signal when SGA is input to be 1.0VP-P
C.T.1 crosstalk 1 (f=50MHz) and C.T.1' crosstalk 1 (f=180MHz) 1. The conditions shall be as specified in the electrical characteristics. (Set the input pin and hold pin as in the case of FC1, FC1, FC1' and FC1') 2. Input SG1 (or SG2) to pin VOB. 3. Crosstalk C.T.1 (C.T.1') C.T.1=20log (C.T.1') VOG or VOB [VP-P] VOR [VP-P] [dB]
13
10%
(R-ch) only, measure the output
waveform amplitude of T.P25 (T.P30 or T.P35) to be VOR, VOG or
0% Tr1 or Tr2 Tf1 or Tf2
V14th clamping pulse threshold voltage 1. The conditions shall be as specified in the electrical characteristic table. 2. Gradually reduce SG4 level at this time, while monitoring the output signal (pedestal voltage: about 1.8V), and measure SG4 top level when the pedestal voltage of output signal is not stabilized and starts to fall. W14 minimum clamping pulse operation width Gradually reduce SG4 pulse width, and measure SG4 pulse width (1.5V from GND) when the pedestal voltage of output signal is not
C.T.2 crosstalk 2 (f=50MHz) and C.T.2' corsstalk 2 (f=180MHz) 1. Change the input pin to pin 8 (G-ch), and read the output as in the case of C.T.1 or C.T.1'. 2. Crosstalk C.T.2 (C.T.2') is found by: C.T.2=20log (C.T.2') VOR or VOB [VP-P] VOG [VP-P] [dB]
stabilized and starts to fall. PDCH and PDCL, pedestal voltage temperature characteristics 1 and pedestal voltage temperature characteristics 2 1. The conditions shall be as specified in the electrical characteristics table. 2. Measure pedestal voltage at room temperature to let the value be PDC1. 3. Then, measure pedestal voltage at -20C and 85C to let the value be PDC2 or PDC3. 4. PDCH=PDC1-PDC2 PDCL=PDC1-PDC3 OTr and OTf, OSD pulse characteristics 1 and OSD pulse characteristics 2 1. The conditions shall be as specified in the electrical characteristics table. Adjust main OSD adjustment voltage (V36) and brightness voltage (V19) to allow output signal amplitude to become 3.0Vp-p, and black level 2.0. 2. Use an active probe to measure rise OTr1 and fall OTf1 at 10% to 90% of input pulse. 3. Use an active probe to measure rise OTtr2 and fall OTf2 at 10% to 90% of output pulse. 4. OSD pulse characteristics OTr and OTf are found by: OTr (nsec) = OTf (nsec) = (OTr2)2 - (OTr1)2 (OTf2)2 - (OTf1)2
C.T.3 crosstalk 3(f=50MHz) and C.T.3' crosstalk 3(f=180MHz) 1. Change the input pin to pin 3 (B-ch), and read the output as in the case of C.T.1 or C.T.1'. 2. Crosstalk C.T.3 (C.T.3') is found by: C.T.3=20log (C.T.2') VOR or VOG [VP-P] VOB [VP-P] [dB]
Tr, and Tf, Pulse characteristics 1 and pulse characteristics 2 1. The conditions shall be as specified in the electrical characteristics table. Adjust the main contrast voltage (V17) and brightness voltage (V19), and allow the output signal amplitude to be 4.0Vp-p, and the black level 2.0V. 2. Use an active probe to measure rise Tr1 and fall Tf1 at 10% to 90% of input pulse. 3. Then, use an active probe to measure rise Tr2 and fall Tf2 at 10% to 90% of output pulse.
7
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION
Oaj1 main OSD adjustment control characteristics (at max.) and Oaj1 relative main OSD adjustment control characteristics (at max.) 1. The conditions shall be as specified in the electrical characteristics table. 2. Let output signal pedestal voltage of T.P25 (T.P30 or T.P35) be VLRA (VLGA or VLBA) and voltage in the OSD area be VHRA (VHGA or VHBA). 3. If letting Oaj1 be VORA (VOGA or VOBA), Oaj1=VORA (VOGA, VOBA) = VHRA-VLRA (VHGA-VLGA, VHBA-VLBA) 4. Relative OSD adjustment control characteristics Oaj1: Oaj1=VORA/VOGA, VOGA/VOBA, VOBA/VORA Oaj2 main OSD adjustment control characteristics (at min.) and Oaj2 relative main OSD adjustment control characteristics (at min.) Change V36 to 0V, and obtain Oaj2 or Oaj2 as in the case of Oaj1 or Oaj1. OSDth OSD input threshold voltage 1. The conditions shall be as specified in the electrical characteristics table. 2. Gradually reduce SG6 level at this time, while monitoring the output, and measure top SG6 level when output is stopped to let the value be OSDth. V1th BLK input threshold voltage 1. The conditions shall be as specified in the electrical characteristics table. 2. Verify at this time that no signal is output with a timing in which output is synchronized with SG6. (OSD blanking period) 3. Gradually reduce SG6 level at this time, while monitoring the output, and measure top SG level when OSD blanking period expires to let the value be V1th. SOaj1 SUB OSD adjustment control characteristics (at typ.) and SOaj2 SUB OSD adjustment control characteristics (at min.) 1. The conditions shall be as specified in the electrical characteristics table. 2. Read output amplitude of T.P25 (T.P30 or T.P35) at this time, and let the reading be VORC (VOGC or VOBC) to let it be Soaj1 or Soaj2. HBLK retrace line BLK characteristics 1. The conditions shall be as specified in the electrical characteristics table. 2. Monitor output at this time, and read trace line blanking level to let the reading be HBLK. HVth retrace line BLK input threshold voltage 1. The conditions shall be as specified in the electrical characteristics table. 2. Verify that blanking is performed with a timing in which output is synchronized with SG7. Gradually reduce SG7 level, while 8 monitoring the output, and measure top SG7 level when blanking period expires to let the reading be HVth.
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION INPUT SIGNAL
SG No. Sine wave with an amplitude of 0.7VP-P SGA Signals
0.7VP-P
SG1 SG2
Sine wave with an amplitude of 0.7VP-P (f = 50MHZ) Sine wave with an amplitude of 0.7VP-P (f = 180MHZ) Video signal with an amplitude of 0.7VP-P (f = 1MHZ,duty = 50%) Lo section shall be synchronized with SG4 pulse.
SG3
0.7VP-P
Pulse with an amplitude of 2.5VP-P and a pulse width of 0.5s (Pulse width, amplitude and frequency are variable) synchronized with the pedestal section of standard video stage wave
SG4
OV 0.5s
2.5VP-P
0.5s
Video signal with an amplitude of 0.7VP-P (f=30kHz, amplitude is partially variable.) Video stage wave
BLK (for OSD) OSD signal
Pulse with an amplitude of 4.0VP-P and a pulse width of 15s synchronized with the image section of standard video stage wave. (Amplitude is partially variable.)
4V
0V
Retrace line BKL signal
Pulse with an amplitude of 4.0VP-P and a pulse width of 15s synchronized with the image section of standard video stage wave. (Amplitude is partially variable.)
4V 0V
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TEST CIRCUIT
V22 SG7 V19 a SW20 b 20 19 32 GND VCC GND VCC GND 31 30 29 28 27 26 25 24 23 22 21 V32 330 V27 2.2 330 2.2
V36
330
2.2
36
35
34
33
VCC
M52722SP
VCC 5 47 0.01 V9 a b SW5 SW8 b a SW13 b b SW10 a V4 47 0.01 V14 6 7 8 9 10 11 12 13 14 15
GND
VCC
GND
VCC
GND 16 17 18
1
2
3
4
SW1 a
47
0.01
b
SW15 a a b
V17 a
SW18 c b
SG6
SW3 b
a
SG4
0.01
A
100
a SG6
b
SGA
SWA
SG1
SG2
MITSUBISHI ICs (Monitor)
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION
Units Resistance : Capacitance : F
12V
SG3
M52722SP
SG5
10
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION TYPICAL CHARACTERISTICS
THERMAL DERATING (MAXIMUM RATING)
2400
POWER DISSIPATION Pd (mW)
2016 2000 1600 1200 800 400 0 -20 0 25 50 75 85 100 125
When mounted with standard substrate
150
OPERATING TEMPERATURE Ta (C)
11
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION APPLICATION EXAMPLE
CRT 110V
DC CLAMP
BLK IN (for retrace) 330 2.2 6V 0~5V 0.1 0.01 0.1 0.01 330 2.2 6V 0.1 0.01 330 2.2 6V 0.1
0.1
2.2V
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
M52722SP
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
0.01
0.01
0.01
0.1
0 to 5V 0.1 0 to 5V 0.1 0 to 5V 0.1 0 to 5V
47
0.01 75
47
0.01 75
47
0.01 75
12V
5V
BLK IN (for OSD)
INPUT (B)
OSD IN (B)
INPUT (G)
OSD IN (G)
INPUT (R)
OSD IN (R)
CLAMP Units Resistance : Capacitance : F
12
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION DESCRIPTION OF PIN
Pin No. Name Peripheral circuit of pins
Vcc B-ch G-ch 1
1
DC voltage
Description of function
*
EInput pulse between 3.5V and 5V.
3.5V to 5V
less than 1V
BLK IN(for OSD)
-
*
Ground to GND when not in use.
2.5V GND 0.9mA
2
VCC (B) VCC (G) VCC (R)
Vcc 2k 2k
*
12
Apply identical voltage to all 3 channels.
7
12
*
Clamped to about 2.5V by clamping pulse at pin 18. Input at a low impedance.
3
INPUT (B) INPUT (G) INPUT (R)
2.5V CP 0.24mA GND
8
2.5
13
*
Vcc
4
Use at less than 5V to ensure stable operation.
SUB CONTRAST (B) SUB CONTRAST(G)
1.5k
9
23.5k
14
2.5V
2.5
SUB CONTRAST (R)
GND
Vcc
*
Input pulse between 3.5V and 5V.
3.5V to 5V
5
OSD IN (B) OSD IN (G) OSD IN (R)
2.5V 1.1mA GND
1V or less
10
-
*
Ground to GND when not in use.
15
13
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION DESCRIPTION OF PIN (cont.)
Pin No.
6 31
Name GND (B) GND (G) GND (R)
Peripheral circuit of pins
DC voltage
Description of function
11
26
GND
16
21
*
Vcc 11k
Use at less than 5V to ensure stable operation.
17
MAIN CONTRAST
41k
2.5V
2.5
GND
17
Vcc 41k
*
Input more than 2.5V of pulse.
more than 2.5V
less than 1V
18
CP IN
18
2.2V
*
IInput at a low impedance.
GND Vcc 20.3k
B-ch
19
MAIN BRIGHTNESS
19
G-ch
-
GND
*
Vcc 45k
IInput pulse between 2.5V and 5V.
2.5 to 5V
B-ch G-ch
20
less than 0.5V
*
-
Ground to GND when not in use.
BLK IN (for retrace)
20
2.1V GND 0.25mA
14
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION DESCRIPTION OF PIN (cont.)
Pin No. Name Peripheral circuit of pins
VCC 65k
22
DC voltage
Description of function
*
Open or pull up to Vcc when not in use.
50k
65k
SUB OSD ADJUST (R)
1k
27
SUB OSD ADJUST (G) SUB OSD ADJUST (B)
55k 55k GND
When open 5.5V
32
VCC
*
Capacitance is required between GNDs.
23
HOLD (R) HOLD (G) HOLD (B)
0.2mA
1k
28
Variable.
33
GND
*
24
VCC2 (R) VCC2 (G) VCC2 (B) Pin 24 Pin 29 Pin 34 12 Apply
A power supply dedicated to output emitter follower. Apply identical voltage to all 3 channels.
29
34
*
25
OUTPUT (R) OUTPUT (G) OUTPUT (B)
50
30
Pin 25 Pin 30 Pin 35
Variable
Resistor is required on the GND side. Set arbitrarily to provide less than 15mA by drive capability required.
35
VCC 65k 50k 65k
*
Open or pull up to Vcc when not in use.
36
MAIN OSD ADJUST
1k
Apply 5.5V
55k
10P
55k GND
15
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION M52722SP - INSTRUCTIONS FOR USE
1) Clamping pulse input Input positive polarity pulse. Clamping pulse threshold voltage VTH is calculated by the following equation, and voltages more than 2.2 V is subject toLIM: VTH = 2.2 V- DiodeX1 = 1.5V Recommended clamping pulse voltage is as given in the following diagram: The above diagram represents its principle. 2-1) Brightness pins
2.5V to 5.0V Brightness 19 (1 to 5V) Signal
2) Brightness operation
+
DC level shift
+
Use within the range of 1V to 5V. Control characteristics are as given in the following drawing:
VTH(1.5V)
Output DC voltage (V)
5 4 3 2 1 0 1 2 3 4 5 6
0V
In addition, pulse width is recommended as follows: More than 1.0 sec at 15kHz, More than 0.5 sec at 30kHz, and More than 0.3 sec at 64kHz. Clamping pulse wiring generally involves long stretched lines in the set, is made from the high pressure side, and often connected indirectly to external pins, causing strong surge input to tend to come into. Under such circumstances, protective circuit as given in the following diagram is recommended:
Brightness voltage (V) 2-2) Sub-brightness This IC has no sub-brightness function. 2-3) Capacitance value of holding capacitor Value necessary as IC is more than 0.01E (when fH=15kHz). However, this depends upon hold period (time other than for clamping), and the longer the hold time is, the greater the
18
value is necessary. In terms of application, the smaller the capacitance value, the quicker the response, and the greater the capacitance value, the more stable the behavior. Accordingly, set freely depending upon signals and clamping pulse contents (especially pulse status in a vertically synchronized timing). 3) BLK (for OSD) and OSD input pins * Input formula is on an open basis. (See page 2-1109.)Threshold voltage is 2.5V. * Inputting OSD mix signal without inputting BLK pulse will cause abnormal operation. Input BLK pulse as well whenever inputting OSD Mix signal. * Ensure that input pin is grounded when OSD Mix function is not used.
16
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION
*
OSD display period overlapped with clamping pulse period will cause abnormal operation. As measures against this, external circuit as given in the following diagram is recommended:
Vcc C/P 18
BLK (for OSD)
1
4) Retrace line BLK input pins
*
Input formula is open. (See page 2-1110.) * Threshold voltage is 1.5V. * Ensure that input pin is grounded when no retrace line BLK function is used. 5) Main, Sub OSD adjustment pins
* * * * *
Use within the range of 0V-5V. Control characteristics are as given in the following drawing: Open if main OSD adjustment or sub OSD adjustment is not used. If, in application, wiring on the substrate causes interference wave to get into these pins, affecting even IC input, consider addition of such as bus controller. Ensure that main, sub OSD adjustment pins are open or grounded when no OSD Mix function is used.
Output amplitude
Sub OSD adjust 5V (Main OSD adjust 5V) Sub OSD adjust 4V (Main OSD adjust 4V) Sub OSD adjust 3V (Main OSD adjust 3V) Sub OSD adjust 2V (Main OSD adjust 2V) Sub OSD adjust 1V (Main OSD adjust 1V)
0
1
2
3
4
5
6
Main OSD adjust (V) (Sub OSD adjust) PRECAUTIONS FOR APPLICATION
* *
Wire output pins to output pulldown resistors at a shortest distance. Voltage in the IC output signal pedestal area is recommended for use at about 2V.
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