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) 36 MAIN OSD ADJUST BLK IN(for OSD) 1 VCC1 (B) 2 35 OUTPUT (B) INPUT (B) 3 34 VCC2 (B) SUB CONTRAST (B) 4 33 HOLD (B) OSD IN (B) 5 32 SUB OSD ADJUST (B) GND 1 (B) 6 FEATURES • • 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. APPLICATION CRT display RECOMMENDED OPERATING CONDITION Supply voltage range...........................................Vcc=11.5 to 12.5V Rated supply voltage......................................................Vcc=12.0V 1 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 30 OUTPUT (G) M52722SP • 31 GND2 (B) VCC1 (G) 7 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 (B) VCC1 2 4 (B) SUB CONTRAST (B) INPUT 3 (B) OSD IN 5 (B) GND2 6 (G) VCC1 7 9 10 (G) OSD IN (G) SUB CONTRAST (G) INPUT 8 G CONTRAST B CONTRAST B CLAMP G CLAMP B OSD BLANKING G OSD MIX B OSD BLANKING B OSD MIX 27 G BRIGHTNESS 28 G HOLD 29 G AMP 30 (G) SUB OSD ADJUST B HOLD 31 (G) VCC2 (G) HOLD B AMP 32 (B) GND2 (G) OUTPUT G-ch BLK 33 (B) HOLD (B) SUB OSD ADJUST B BRIGHTNESS 34 (B) VCC2 B-ch BLK 35 (B) OUTPUT BLK IN (for OSD) 1 36 MAIN OSD ADJUST (R) GND2 11 26 (G) GND2 R AMP R-ch BLK 24 (R) VCC1 12 14 23 (R) HOLD 21 (R) GND2 (R) OSD IN 15 16 17 20 CP IN 18 19 BRIGHTNESS BLK IN (for retrace) MAIN CONTRAST (R) GND2 R CONTRAST R OSD BLANKING R HOLD G BRIGHTNESS 22 (R) SUB OSD ADJUST (R) SUB CONTRAST (R) INPUT 13 R CLAMP R OSD MIX 25 (R) OUTPUT (R) VCC2 MITSUBISHI ICs (Monitor) M52722SP 3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION BLOCK DIAGRAM 2 MITSUBISHI ICs (Monitor) M52722SP 3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION ABSOLUTE MAXIMUM RATINGS (Ta=25˚C) 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=25˚C, unless otherwise noted) Symbol Icc Circuit current Vomax Output dynamic range Vimax Maximum allowable input Gv Maximum gain ∆Gv Relative maximum gain VCR1 Contrast control characteristics (at typ.) ∆VCR1 Relative contrast control characteristics (at typ.) VCR2 Contrast control characteristics (at min.) ∆VCR2 Relative contrast control characteristics (at min.) VSCR1 Sub-contrast control characteristics (at typ.) ∆VSCR1 Sub-contrast control characteristics (at typ.) VSCR2 Sub-contrast control characteristics (at min.) VB1 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.) ∆VB1 Relative brightness control characteristics (at max.) ∆VSCR2 VSCR3 ∆VSCR3 3 Parameter VB2 Brightness control characteristics (at typ.) ∆VB2 Relative brightness control characteristics (at typ.) VB3 Brightness control characteristics (at min.) ∆VB3 Relative brightness control characteristics (at min.) 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 2 b SG4 a _ a _ 70 100 140 mA b b b SG5 SG5 SG5 5 5 Variable - - b SG4 a _ a _ 6.0 7.5 9.0 VP-P b b b SG5 SG5 SG5 5 2.5 2 - - b SG4 a _ a _ 1 1.6 - VP-P b b b SG5 SG5 SG5 5 5 2 - - b SG4 a _ a _ 15.4 17.4 20 dB 0.8 1.2 - Take the ratio of the above test values T.P35 T.P30 T.P25 b b b SG5 SG5 SG5 5 4 2 - - b SG4 a _ a _ Take the ratio of the above test values T.P35 T.P30 T.P25 b b b SG5 SG5 SG5 5 1 2 - - b SG4 a _ a _ Take the ratio of the above test values T.P35 T.P30 T.P25 b b b SG5 SG5 SG5 4 5 2 - - b SG4 a _ a _ Take the ratio of the above test values T.P35 T.P30 T.P25 b b b SG5 SG5 SG5 1 5 2 - - b SG4 a _ a _ 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 _ Take the ratio of the above test values T.P35 T.P30 T.P25 a _ a _ a _ 5 5 4 - - b SG4 a _ a _ Take the ratio of the above test values T.P35 T.P30 T.P25 a _ a _ a _ 5 5 2 - - b SG4 a _ a _ Take the ratio of the above test values T.P35 T.P30 T.P25 a _ a _ a _ 5 5 1 - - b SG4 Take the ratio of the above test values a _ a _ 1 14.3 15.8 17.3 dB 0.8 1 1.2 - 0.4 0.7 1.0 VP-P 0.8 1 1.2 - 14.3 15.8 17.3 dB 0.8 1 1.2 - 0.4 0.8 1.2 VP-P 0.8 1 1.2 - 1.1 1.8 2.5 VP-P 0.8 1 1.2 - 3.0 3.6 4.2 V -0.3 0 0.3 V 1.1 1.6 2.1 V -0.3 0 0.3 V 0.3 0.7 1.1 V -0.3 0 0.3 V MITSUBISHI ICs (Monitor) M52722SP 3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION ELECTRICAL CHARACTERISTICS (cont.) Symbol Parameter FC1 Frequency characteristics (f=50MHz at max.) ∆FC1 Relative frequency characteristics (f=50MHz at max.) FC1’ Frequency characteristics (f=180MHz at max.) ∆FC1’ Relative frequency characteristics (f=180MHz at max.) FC2 Frequency characteristics (f=180MHz at typ.) ∆FC2 Relative frequency characteristics (f=180MHz at typ.) C.T.1 Crosstalk1(f=50MHz) C.T.1’ Crosstalk1(f=180MHz) C.T.2 Crosstalk2(f=50MHz) C.T.2’ Crosstalk2(f=180MHz) C.T.3 Crosstalk3(f=50MHz) C.T.3’ Crosstalk3(f=180MHz) Tr Pulse characteristics 1 Tf Pulse characteristics 2 V14th Clamping pulse threshold voltage W14 Clamping pulse operation min. width PDCH Pedestal voltage temperature characteristics1 PDCL Pedestal voltage temperature characteristics2 OTr OSD pulse characteristics 1 OTf Oaj1 ∆Oaj1 Oaj2 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.) ∆Oaj2 Relative main OSD adjustment control characteristics (at min.) OSDth OSD input threshold voltage V1th BLK input threshold voltage 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 _ Take the ratio of the above test values T.P35 T.P30 T.P25 b b b SG2 SG2 SG2 5 Variable - - c _ - a _ a _ Take the ratio of the above test values T.P35 T.P30 T.P25 b b b SG2 SG2 SG2 5 Variable - - c _ - a _ a _ Take the ratio of the above test values 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 dB -1 0 1 - -3 -2.3 3 dB -1 0 1 - -3 0 3 dB -1 0 1 - a _ 5 5 - - - c _ a _ a _ - -30 -20 dB b SG2 a _ a _ 5 5 - - - c _ a _ a _ - -20 -15 dB a _ b SG1 a _ 5 5 - - - c _ a _ a _ - -30 -20 dB a _ b SG2 a _ 5 5 - - - c _ a _ a _ - -20 -15 dB a _ a _ b SG1 5 5 - - - c _ a _ a _ - -30 -20 dB a _ a _ b SG2 5 5 - - - c _ a _ a _ - -20 -15 dB b b b SG3 SG3 SG3 5 Vari- Variable able - - b SG4 a _ a _ - 2 - nsec b b b SG3 SG5 SG5 5 Vari- Variable able - - b SG4 a _ a _ - 2 - nsec b b b SG5 SG5 SG5 5 5 2 - - b SG4 a _ a _ 1.0 1.5 2.5 VDC b b b SG5 SG5 SG5 5 5 2 - - b SG4 a _ a _ 0.2 0.5 - µsec b b b SG5 SG5 SG5 5 5 2 - - b SG4 a _ a _ -0.3 0 0.3 VDC b b b SG5 SG5 SG5 5 5 2 - - b SG4 a _ a _ -0.3 0 0.3 VDC 5 Variable 5 Vari- b able SG4 SW1 is a, and others b. a _ - 3 6 nsec Variable 5 Vari- b able SG4 SW1 is a, and others b. a _ - 3 6 nsec 2 5 a _ 3.7 4.3 5.0 VP-P 0.8 1 1.2 - - 0 0.5 VP-P 0.8 1 1.2 - a _ 1.7 2.5 3.5 VDC a _ 1.7 2.5 3.5 VDC a _ a _ 5 T.P35 T.P30 T.P25 a _ a _ a _ 5 T.P35 T.P30 T.P25 a _ a _ a _ 5 5 5 4 SG6 SG6 b b SG4 SG6 Take the ratio of the above test values a _ a _ a _ 5 5 2 5 0 b b SG4 SG6 a _ Take the ratio of the above test values T.P35 T.P30 T.P25 2.5 a _ a _ T.P35 T.P30 T.P25 0 b SG1 T.P35 T.P30 T.P25 T.P35 T.P30 T.P25 -2 a _ a _ a _ b b b SG5 SG5 SG5 5 5 2 5 5 b SG4 SW1 is a, and others b. SG6 SW1 is 5 5 2 5 5 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 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 Parameter SOaj1 SUB OSD adjustment control characteristics (at typ.) SOaj2 SUB OSD adjustment control characteristics (at min.) HBLK Retrace line BLK characteristics HVth Retrace line BLK input threshold value 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 _ 5 5 2 2 5 b b SG4 SG6 a _ 1.6 2.2 2.6 VP-P a _ a _ a _ 5 5 2 0 5 b b SG4 SG6 a _ - 0 0.5 VP-P a _ a _ a _ 5 5 2 0 0 a _ a _ b SG7 - 0.2 0.5 VDC a _ a _ a _ 5 5 2 0 0 a _ a _ b SG7 0.5 1.5 2.5 VDC ELECTRICAL CHARACTERISTICS TEST METHOD Note: SW/NO of signal input pin and SW/NO of pulse input pin, Vimax maximum allowable input Change V17 to 2.5V, gradually increase input signal amplitude from which have already been described in the electrical characteristics 700m VP-P, and read input signal amplitude when output signal table, are omitted, and SW/NO of external power supply will only be starts to be distorted. described as follows: 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 1. Input SG5 to pin 13 (pin or pin 8 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: represented by V4 in the electrical characteristics table. Icc circuit current Conditions shall be as specified in the electrical characteristics VOR1(VOG1, VOB1) GV=20LOG 0.7 [VP-P] [VP-P] table, and take measurements with ammeter A when SWA is turned to the b side. 3. Relative maximum gain ∆G is found by Vomax output dynamic range Follow the following procedure to set V19. through respective calculation. 1. Input SG5 to pin 13 (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: ∆GV=VOR1/VOG1, VOG1/VOB1, VOB1/VOR1 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 Vomax=VOHR(VOHG, VOHB)-VOLR(VOLG, VOLB) VOR2(VOG2, VOB2) VCR1=20LOG (V) 0.7 [VP-P] [VP-P] ∆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. 3. For relative brightness control characteristics ∆VB2, further, calculate difference between channels from VOR7, VOG7 or VOB7. ∆VB2=VOR7’ VOG7’ =VOG7’ VOB7’ =VOB7’ VOR7’ 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] ∆VSCR1=VOR4/VOG4, VOG4/VOB4, VOB4/VOR4 [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. 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 3. For relative control characteristics ∆VB3, further, calculate difference between channels from VOR7", VOG7" or VOB7". ∆VB3=VOR7’’ and V14 to 1.0V. 2. Read the output amplitude of T.P25 (T.P30 or T.P35) at this time VOG7’’ =VOG7’’ VOB7’’ =VOB7’’ VOR7’’ [V] to let the reading be VOR5 (VOG5 or VOB5). This value represents FC1 and ∆FC1 frequency characteristics 1 and relative 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, 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 2kΩ of resistor so as to provide 2.5V on the lower side of input signal. In and let the reading be VOR6 (VOG6 or VOB6). This value addition, apply voltage to the hold pin (pin 23 , pin represents VSCR3. ensure that the output wave of T.P25 (T.P30 or T.P35) will not be 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. or pin 33 ) to 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 4.0V P-P. Then, change the input signal to SG1 or SG2 to measure each output amplitude. 3. Now, when letting this test value be 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, output amplitude 4.0VP-P when SGA is input, output amplitude VOR 8 (VOG8 or VOB8) respectively. when SG1 is input, and 3. For relative control characteristics, further, measure difference between channels from VOR7, VOG7 or VOB7. ∆VB1=VOR7 28 VOG7 =VOG7 VOB7 =VOB7 VOR7 output amplitude VOR9 (VOG9 or VOB9), frequency characteristics FC1 or FC1' is calculated from: [V] VOR8(VOG8, VOB8) FC1=20LOG VOR9(VOG9, VOB9) FC1’=20LOG VB2 brightness control characteristics and ∆VB2 relative brightness control characteristics (at typ.) 1. The conditions shall be as specified in the electrical 4.0 4.0 [VP-P] [VP-P] [VP-P] [VP-P] 4. For relative frequency bands ∆FC1 and ∆FC1', calculate difference in FC1 and FC1 for each channel. 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. 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 4. Pulse characteristics Tr and Tf: frequency characteristics 2 (f=180MHz at typ.) The same as for FC1, ∆FC1 and ∆FC1' applies except adjusting the Tr (nsec) = (Tr2)2 - (Tr1)2 main contrast voltage (V17) and allowing the amplitude of output Tf (nsec) = (Tf2)2 - (Tf1)2 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 100% 90% 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 10% 13 (R-ch) only, measure the output 0% waveform amplitude of T.P25 (T.P30 or T.P35) to be VOR, VOG or Tr1 or Tr2 VOB. 3. Crosstalk C.T.1 (C.T.1') C.T.1=20log VOG or VOB [VP-P] VOR (C.T.1’) [VP-P] [dB] 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 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'. VOG [VP-P] [dB] the case of C.T.1 or C.T.1'. (C.T.2’) [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. characteristics table. 2. Measure pedestal voltage at room temperature to let the value be 3. Then, measure pedestal voltage at -20˚C and 85˚C to let the VOR or VOG [VP-P] [VP-P] and pedestal voltage temperature characteristics 2 1. The conditions shall be as specified in the electrical PDC1. 2. Crosstalk C.T.3 (C.T.3') is found by: VOB stabilized and starts to fall. PDCH and PDCL, pedestal voltage temperature characteristics 1 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 C.T.3=20log stabilized and starts to fall. (1.5V from GND) when the pedestal voltage of output signal is not VOR or VOB [VP-P] (C.T.2’) top level when the pedestal voltage of output signal is not W14 minimum clamping pulse operation width Gradually reduce SG4 pulse width, and measure SG4 pulse width 2. Crosstalk C.T.2 (C.T.2') is found by: C.T.2=20log output signal (pedestal voltage: about 1.8V), and measure SG4 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: 7 OTr (nsec) = (OTr2)2 - (OTr1)2 OTf (nsec) = (OTf2)2 - (OTf1)2 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.) monitoring the output, and measure top SG7 level when blanking and ∆Oaj1 relative main OSD adjustment control characteristics (at max.) 1. The conditions shall be as specified in the electrical period expires to let the reading be HVth. 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 MITSUBISHI ICs (Monitor) M52722SP 3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION INPUT SIGNAL SG No. Signals Sine wave with an amplitude of 0.7VP-P SGA SG1 SG2 0.7VP-P Sine wave with an amplitude of 0.7V P-P (f = 50MHZ) Sine wave with an amplitude of 0.7V P-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 0.5µs (Pulse width, amplitude and frequency are variable) synchronized with the pedestal section of standard video stage wave SG4 2.5VP-P OV 0.5µs 0.5µs 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 15µs synchronized with the image section of standard video stage wave. (Amplitude is partially variable.) 4V 0V Retrace line BKL signal 9 Pulse with an amplitude of 4.0VP-P and a pulse width of 15µs synchronized with the image section of standard video stage wave. (Amplitude is partially variable.) 4V 0V 12V a b 0.01µ SWA A 1 36 SG6 SW1 a V36 SG5 SG3 SG2 SG1 SGA 100µ b 2 VCC 35 34 3 a 4 V4 33 2.2µ 0.01µ VCC SW3 b 47µ 330 a 5 32 GND 31 SG6 b SW5 6 GND V32 7 30 b 29 8 VCC 28 a 0.01µ 9 V9 M52722SP VCC SW8 47µ 330 2.2µ a 10 27 GND 26 b SW10 11 GND V27 12 24 13 a 23 14 2.2µ 0.01µ VCC 47µ SW13 b VCC 25 330 a V14 22 15 V22 b SW15 16 GND GND 21 V17 a SW20 SG7 17 20 b a SG4 c SW18 b 18 19 V19 MITSUBISHI ICs (Monitor) M52722SP 3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION TEST CIRCUIT Units Resistance : Ω Capacitance : F 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) POWER DISSIPATION Pd (mW) 2400 2016 2000 1600 1200 800 400 When mounted with standard substrate 0 -20 0 25 50 75 85 100 125 150 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) 330 330 2.2µ 6V 0~5V 0.1µ 36 0.01µ 35 34 32 2.2µ 6V 0.1µ 33 330 2.2µ 0.01µ 31 30 29 0.1µ 28 27 ≈ 6V 0.01µ 2.2V 0.1µ 0.1µ 26 25 24 23 22 21 20 19 11 12 13 14 15 16 17 18 M52722SP 1 2 3 4 5 0.01µ 6 7 8 9 10 0.01µ 0.01µ 0.1µ 0 to 5V 0.1µ 0 to 5V 0.1µ 0.1µ 47µ 0.01µ 47µ 0.01µ 75 12V 5V BLK IN (for OSD) INPUT (B) 47µ 75 OSD IN (B) INPUT (G) 0 to 5V 0 to 5V 0.01µ 75 OSD IN (G) INPUT (R) OSD IN (R) CLAMP Units Resistance : Ω 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 DC voltage Peripheral circuit of pins Description of function • Vcc B-ch EInput pulse between 3.5V and 5V. 3.5V to 5V G-ch less than 1V 1 1 BLK IN(for OSD) - • Ground to GND when not in use. • Apply identical voltage to all 3 channels. 2.5V GND 0.9mA 2 VCC (B) 7 VCC (G) 12 VCC (R) 12 • Clamped to about 2.5V by clamping pulse at pin 18. Input at a low impedance. Vcc 2kΩ 3 INPUT (B) 8 INPUT (G) 13 INPUT (R) 2kΩ 2.5 2.5V CP GND 0.24mA • Use at less than 5V to ensure stable operation. • Input pulse between 3.5V and 5V. Vcc 4 SUB CONTRAST (B) 9 SUB CONTRAST(G) 1.5kΩ 23.5kΩ 14 2.5 2.5V SUB CONTRAST (R) GND Vcc 3.5V to 5V 5 OSD IN (B) 10 OSD IN (G) 15 OSD IN (R) 1V or less - 2.5V 1.1mA 13 GND • Ground to GND when not in use. 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 6 31 GND (B) 11 26 GND (G) 16 21 GND (R) DC voltage Peripheral circuit of pins Description of function GND • Use at less than 5V to ensure stable operation. • Input more than 2.5V of pulse. Vcc 11kΩ 17 MAIN CONTRAST 2.5V 41kΩ 2.5 GND 17 Vcc more than 2.5V 41kΩ less than 1V 18 CP IN - 18 • IInput at a low impedance. • IInput pulse between 2.5V and 5V. 2.2V GND Vcc 20.3kΩ B-ch 19 G-ch MAIN BRIGHTNESS - 19 GND Vcc B-ch 2.5 to 5V 45kΩ less than 0.5V G-ch 20 BLK IN (for retrace) • 20 Ground to GND when not in use. - 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 DC voltage Peripheral circuit of pins VCC 65kΩ 22 SUB OSD ADJUST (R) 27 SUB OSD ADJUST (G) 32 SUB OSD ADJUST (B) 50kΩ Description of function • Open or pull up to Vcc when not in use. • Capacitance is required between GNDs. • A power supply dedicated to output emitter follower. Apply identical voltage to all 3 channels. • Resistor is required on the GND side. Set arbitrarily to provide less than 15mA by drive capability required. • Open or pull up to Vcc when not in use. 65kΩ 1k When open 5.5V 55kΩ 55kΩ GND VCC 23 HOLD (R) 28 HOLD (G) 33 HOLD (B) 1kΩ Variable. 0.2mA GND 24 VCC2 (R) 29 VCC2 (G) Pin 24 34 VCC2 (B) Pin 29 12 Apply Pin 34 25 OUTPUT (R) 30 OUTPUT (G) 35 50Ω Variable Pin 25 Pin 30 OUTPUT (B) Pin 35 VCC 65kΩ 36 MAIN OSD ADJUST 50kΩ 65kΩ 1kΩ 55kΩ Apply 5.5V 10P 55kΩ 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 2) Brightness operation 1) Clamping pulse input Signal Input positive polarity pulse. DC level shift + 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 Brightness 19 (1 to 5V) Recommended clamping pulse voltage is as given in the following The above diagram represents its principle. diagram: 2-1) Brightness pins 2.5V to 5.0V Use within the range of 1V to 5V. Control characteristics are as given in the following drawing: 0V In addition, pulse width is recommended as follows: More than 1.0µ sec at 15kHz, More than 0.5µ sec at 30kHz, and Output DC voltage (V) VTH(1.5V) 5 4 3 2 1 0 1 More than 0.3µ sec at 64kHz. 2 3 4 5 6 Brightness voltage (V) Clamping pulse wiring generally involves long stretched lines in the set, is made from the high pressure side, and often 2-2) Sub-brightness This IC has no sub-brightness function. 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: 2-3) Capacitance value of holding capacitor Value necessary as IC is more than 0.01É (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 • • • • Sub OSD adjust 5V (Main OSD adjust 5V) Output amplitude • 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. 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. 17