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| MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING DESCRIPTION The M52733SP 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 blanking function. The circuit is most useful with high resolution displays that have OSD, and its function are available for each channel, including OSD blanking, wide-band amplification, contrast control (main and sub), and brightness control. OSD BLK IN VCC1 (B) INPUT (B) SUB CONTRAST (B) 1 2 3 4 30 GND 29 OUTPUT (B) 28 VCC2 (B) 27 HOLD (B) 26 GND2 (B) 25 OUTPUT (G) PIN CONFIGURATION (TOP VIEW) GND1 (B) 5 VCC1 (G) 6 FEATURES M52733SP INPUT (G) SUB CONTRAST (G) 7 8 24 VCC2 (G) 23 HOLD (G) 22 GND2 (G) 21 OUTPUT (R) 20 VCC2 (R) 19 HOLD (R) 18 NC 17 GND2 (R) 16 BRIGHTNESS * * Frequency band width: RGB................................130MHz (3V P-P) Input :RGB.............................................................0.7V P-P (typ.) BLK ...............................................3.0VP-P min. (positive) Output :RGB...........................................................4.0V P-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. GND1 (G) 9 VCC1 (R) 10 INPUT (R) 11 SUB CONTRAST (R) 12 GND1 (R) 13 MAIN CONTRAST 14 CP IN 15 * APPLICATION Display monitor Outline 30P4B NC : NO CONNECTION RECOMMENDED OPERATING CONDITION Supply voltage range....................................................11.5 to 12.5V Rated supply voltage................................................................12.0V BLOCK DIAGRAM OUTPUT (B) GND 30 29 VCC2 (B) 28 27 HOLD (B) OUTPUT (G) VCC2 (G) 25 24 23 HOLD (G) OUTPUT (R) VCC2 (R) 21 20 19 HOLD (R) NC 18 17 GND2 (R) BRIGHTNESS 16 GND2 (B) 26 GND2 (G) 22 B Brightness G Brightness R Brightness B AMP B Hold B Blanking G AMP G Hold G Blanking R AMP R Hold R Blanking B Clamp B Contrast G Clamp G Contrast R Clamp R Contrast 1 OSD BLK IN 2 3 INPUT (B) 4 5 GND1 (B) 6 7 INPUT (G) 8 9 GND1 (G) 10 11 INPUT (R) 12 13 GND1 (R) 14 15 CP IN VCC1 (B) SUB CONTRAST (B) VCC1 (G) SUB CONTRAST (G) VCC1 (R) SUB CONTRAST MAIN CONTRAST (R) 1 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING ABSOLUTE MAXIMUM RATINGS (Ta=25C) Symbol VCC Pd Topr Tstg Vopr Vopr' Surge Parameter Supply voltage Power dissipation Ambient temperature Storage temperature Recommended supply voltage Recommended supply voltage range Electrostatic discharge Ratings 13.0 1736 -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, Ta=25C, unless otherwise noted) Test conditions External power supply (V) Input Pulse input Test point SW11 SW7 SW3 V4 V14 V16 SW1 SW15 (s) R-ch G-ch B-ch a a a a b A 5 5 5 - - - - SG5 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 b SG6 b SG6 b SG6 b SG6 b SG6 b SG6 b SG6 b SG6 b SG6 5 5 Variable Limits Unit Min. 60 5.8 Typ. 83 6.8 Max. 123 9.0 mA VP-P Symbol Parameter ICC Vomax Circuit current Output dynamic range a - a - a - b SG5 b SG5 b SG5 Vimax Maximum input 5 2.5 1 1 1.8 - VP-P Gv Gv VCR1 VCR1 VCR2 VCR2 VSCR1 VSCR1 Maximum gain Rrlative maximum gain Contrast control characteristics (typical) Contrast control relative characteristics (typical) Contrast control characteristics (minimum) Contrast control relative characteristics (minimum) 5 5 2 15 0.8 17 1 15.5 1 0.6 1 15.5 20 1.2 17 1.2 0.9 1.2 17 dB - dB - VP-P - dB - Relative to measured values above b SG6 b SG6 b SG6 5 4 2 a - b SG5 14 0.8 Relative to measured values above T.P.29 T.P.25 T.P.21 b SG6 b SG6 b SG6 5 1 2 a - b SG5 0.3 0.8 Relative to measured values above T.P.29 T.P.25 T.P.21 b SG6 b SG6 b SG6 4 5 2 a - b SG5 Sub contrast control characteristics (typical) Sub contrast control relative characteristics (typical) Sub contrast control characteristics (minimum) Sub contrast control relative characteristics (minimum) Contrast/sub contrast control characteristics (typical) Contrast/sub contrast control relative characteristics (typical) 14 Relative to measured values above T.P.29 T.P.25 T.P.21 b SG6 b SG6 b SG6 a - b SG5 0.8 1 1.2 VSCR2 VSCR2 VSCR3 VSCR3 1 5 2 0.5 0.8 0.9 1 1.5 1.3 1.2 2.2 VP-P - VP-P - Relative to measured values above T.P.29 T.P.25 T.P.21 b SG6 b SG6 b SG6 3 3 2 a - b SG5 0.8 Relative to measured values above T.P.29 T.P.25 T.P.21 a - a - a - a - b SG5 0.8 1 1.2 VB1 VB1 Brightness control characteristics (maximum) Brightness control relative characteristics (maximum) 5 5 4 3.0 -0.3 3.6 0 4.2 0.3 V V Relative to measured values above 2 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING ELECTRICAL CHARACTERISTICS (cont.) Symbol Parameter Test conditions External power supply (V) Pulse input Input Test point SW11 SW7 SW3 V4 V14 V16 SW1 SW15 (s) R-ch G-ch B-ch T.P.29 T.P.25 T.P.21 a - a - a - 5 5 2.5 a - b SG5 Limits Unit Min. 1.7 -0.3 b SG5 0.5 -0.3 a - -2.5 -1 a - -3 Typ. 2.3 0 0.9 0 -1 0 -2 Max. 2.9 0.3 1.3 0.3 3 1 3 V V V V dB dB dB VB2 VB2 VB3 VB3 FC1 FC1 FC1' FC1' FC2 FC2' Brightness control characteristics (typical) Brightness control relative characteristics (typical) Relative to measured values above T.P.29 T.P.25 T.P.21 a - a - a - 5 5 1 a - Brightness control characteristics (minimum) Brightness control relative characteristics (minimum) Relative to measured values above T.P.29 T.P.25 T.P.21 b SG2 b SG2 b SG2 5 2.5 VT a - Frequency characteristics 1 (f=50MHz) Frequency relative characteristics 1 (f=50MHz) Relative to measured values above T.P.29 T.P.25 T.P.21 b SG3 b SG3 b SG3 5 2.5 VT a - Frequency characteristics 1 (f=130MHz;maximum) Frequency relative characteristics 1 (f=130MHz;maximum) Relative to measured values above T.P.29 T.P.25 T.P.21 b SG3 b SG3 b SG3 a - a - -1 0 1 dB Frequency characteristics 2 (f=130MHz; maximum) Frequency relative characteristics 2 (f=130MHz; maximum) 5 1.5 VT -3 0 3 dB Relative to measured values above T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 T.P.29 T.P.25 T.P.21 b SG2 b SG3 a - a - a - a - b SG4 b SG4 a - a - b SG6 a - a - b SG2 b SG3 a - a - b SG4 b SG4 a - a - b SG6 a - a - a - a - b SG2 b SG3 b SG4 b SG4 a - a - b SG6 a - a - a - a - a - a - a - a - a - a - a - a - a - a - a - a - a - b SG5 b SG5 b SG5 b SG5 b SG5 -1 - - - - - - - - 0 1 dB C.T.1 Crosstalk 1 (f=50MHz) 5 5 VT -30 -20 dB C.T.1' Crosstalk 1 (f=130MHz) 5 5 VT -20 -15 dB C.T.2 Crosstalk 2 (f=50MHz) 5 5 VT -30 -20 dB C.T.2' Crosstalk 2 (f=130MHz) 5 5 VT -20 -15 dB C.T.3 Crosstalk 3 (f=50MHz) 5 5 VT -30 -20 dB C.T.3' Crosstalk 3 (f=130MHz) 5 5 VT -20 -15 dB Tr Pulse characteristics 1 5 3.3 2 3 7 nsec Tf Pulse characteristics 2 Clamp pulse threshold voltage Clamp pulse minimum width Pedestal voltage temperatere characteristics1 5 3.3 2 4 8 nsec V14th 5 5 2 1.0 1.5 2.0 VDC W14 5 5 2 - 0.1 0.5 sec PDCH 5 5 2 -0.3 0 0.3 VDC 3 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING ELECTRICAL CHARACTERISTICS (cont.) Test conditions Symbol Parameter Test point SW11 SW7 (s) R-ch G-ch T.P.29 b b T.P.25 SG6 SG6 T.P.21 T.P.29 T.P.25 T.P.21 b SG6 b SG6 Input SW3 B-ch b SG6 b SG6 External power supply (V) Pulse input SW1 SW15 a - b SG7 b SG5 b SG5 Min. -0.3 Limits Unit Typ. 0 Max. 0.3 VDC V4 5 V14 5 V16 2 PDCL Pedestal voltage temperatere characteristics2 BLK input threshold voltage V1th 5 5 2 1.7 2.5 3.5 VDC ELECTRICAL CHARACTERISTICS TEST METHOD 1. Because a description of signal input pin and pulse input pin switch numbers is already given in Supplementary Table, only external power supply switch numbers are included in the notes below. Sub contrast voltages V4, V8 and V12 are always set to the same voltage, therefore only V4 is referred to in Supplementary Table. ICC Circuit current Measuring conditions are as listed in Supplementary Table. Measured with an ammeter At test point A when SW A is set to b. Vomax Output dynamic range Voltage V16 is varied as described below: 1. Increase V16 gradually while inputting SG6 to pin 11 (7 or 3). Measure the voltage when the top of the waveform output at T.P21 (25 or 29) is distorted. The voltage is called VTR1 (VTG1 or VTB1). Next, decrease V16 gradually, and measure the voltage when the bottom of the waveform output at T.P29 (25 or 21) is distorted. The voltage is called VTR2 (VTG2 or VTB2). (V) 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.P21 (25 or 29) starts becoming distorted synchronously. Vimax Maximum input Measuring conditions are the same as those used above, except that the setting of V14 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 11 (7 or 3), and read the amplitude at output T.P21 (25 or 29). The amplitude is called VOR1 (VOG1 or VOB1) . 2. Maximum gain GV is calculated by the equation below: GV=20LOG VOR1 (VOG1, VOB1) [VP-P] [VP-P] 0.7 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 V14 is changed to 4V. 2. Measure the amplitude output at T.P21 (25 or 29). The measured value is called VOR2 (VOG2 or VOB2). 5.0 0.0 Waveform Output at T.P21 (Identical to output at T.P25 and T.P29.) 3. Contrast control characteristics VCR1 and relative characteristics VCR1 are calculated, respectively, by the equations below: VCR1=20LOG VOR2 (VOG2, VOB2) [VP-P] [VP-P] 0.7 2. Voltage VT (VTR, VTG and VTB) is calculated by the equation below: VTR (VTG, VTB)= VTR1 (VTG1, VTB1) + VTR2 (VTG1, VTB1) 2 VCR1=VOR2/VOG2, VOG2/VOB2, VOB2/VOR2 Use relevant voltages, depending on the pin at which the waveform is output; specifically, use VTR1 when it is output at T.P21; VTG1, at T.P25, and VTB, at T.P29. 4 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING VCR2 Contrast control characteristics (minimum) VCR2 Contrast control relative characteristics (minimum) 1. Measuring conditions are as given in Supplementary Table. The setting of V14 is changed to 1.0V. 2. Measure the amplitude output at T.P21 (25 or 29). 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, V8 and V12 to 4.0V. Other conditions are as given in Supplementary Table. 2. Measure the amplitude output at T.P21 (25 or 29). 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: VOR4 (VOG4, VOB4) [VP-P] VSCR1=20LOG [VP-P] 0.7 VSCR1=VOR4/VOG4, VOG4/VOB4, VOB4/VOR4 VSCR2 Sub contrast control characteristics (minimum) VSCR2 Sub contrast control relative characteristics (minimum) 1. Set V4, V8 and V12 to 1.0V. Other conditions are as given in Supplementary Table. 2. Measure the amplitude output at T.P21 (25 or 29). 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, V8, V12 and V14 to 3.0V. Other conditions are as given in Supplementary Table. 2. Measure the amplitude at T.P21 (25 or 29). The measured value is called VOR6 (VOG6 or VOB6). VCR3=20LOG VOR6 (VOG6, VOB6) [VP-P] [VP-P] 0.7 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.P21 (25 or 29) 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 VB2 Brightness control characteristics (typical) VB2 Brightness control relative characteristics (typical) 1. Measuring conditions are as given in Supplementary Table. 2. Measure the output at T.P21 (25 or 29) with a voltmeter. The measured value is called VOR7' (VOG7' or VOB7'), and is treated as VB2. 3. To obtain brightness control relative characteristics (VB2), calculate the difference in the output between the channels, using VOR7', VOG7', and VOB7'. VB2 =VOR7'-VOG7' =VOG7'-VOB7' =VOB7'-VOR7' VB3 Brightness control characteristics (minimum) VB3 Brightness control relative characteristics (minimum) 1. Measuring conditions are as given in Supplementary Table. 2. Measure the output at T.P21 (25 or 29) with a voltmeter. The measured value is called VOR7" (VOG7" or VOB7"), and is treated as VB2. 3. To obtain brightness control relative characteristics (VB3), calculate the difference in the output between the channels, using VOR7", VOG7" and VOB7". VB3 =VOR7''-VOG7'' =VOG7''-VOB7'' =VOB7''-VOR7'' FC1 Frequency characteristics1 (f=50MHz) FC1 Frequency relative characteristics1 (f=50MHz) FC1' Frequency characteristics1 (f=130MHz; maximum) FC1' Frequency relative characteristics1 (f=130MHz; maximum) 1. Measuring conditions are as given in Supplementary Table. 2. SG2 and SG3 are input. The amplitude of the waveform output at T.P21 (25 or 29) is measured by the same procedure as in GV, GV. [mV] [mV] [mV] VCR3=VOR6/VOG6, VOG6/VOB6, VOB6/VOR6 5 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING 3. Supposing that the measured value is treated as amplitude VOR1 (VOG1 or VOB1) when SG1 is input, as VOR8 (VOG8 or VOB8) when SG2 is input, or as VOR9 (VOG9 or VOB9) when SG3 is input, frequency characteristics FC1 and FC1' are calculated as follows: Tr Pulse characteristics1 Tf Pulse characteristics2 1. Measuring conditions are as given in Supplementary Table. 2. Measure the time needed for the input pulse to rise from 10% to 90% (Tr1) and to fall from 90% to 10% (Tf1) with an active prove. 3. Measure the time needed for the output pulse to rise from 10% to 90% (Tr2) and to fall from 90% to 10% (Tf2) with an active prove. 4. Pulse characteristics Tr and Tf are calculated by the equation below: Tr (nsec)= (Tr2)2-(Tr1)2 Tf (nsec)= (Tf2)2-(Tf1)2 100% 90% FC1=20LOG VOR8 (VOG8, VOB8) VOR1 (VOG1, VOB1) [VP-P] [VP-P] [VP-P] [VP-P] VOR9 (VOG9, VOB9) FC1'=20LOG VOR1 (VOG1, VOB1) 4. Frequency relative band widths FC1 and FC1' are equal to the difference in FC1 and FC1', respectively, between the channels. FC2 Frequency characteristics2 (f=130MHz; maximum) FC2' Frequency relative characteristics2 (f=130MHz; maximum) Measuring conditions and procedure are the same as described in FC1, FC1, FC1', FC1', except that CONTRAST (V14) is turned down to 1.5V. 10% 0% Tr Tf C.T.1 Crosstalk1 (f=50MHz) C.T.1' Crosstalk1 (f=130MHz) 1. Measuring conditions are as given in Supplementary Table. 2. Input SG2 (or SG3) to pin 11 (R-ch) only, and then measure the waveform amplitude output at T.P21 (25 or 29). The measured value is called VOR, VOG and or VOB respectively. 3. Crosstalk C.T. 1 is calculated by the equation below: C.T.1 =20LOG (C.T.1') VOG or VOB VOR [VP-P] [dB] [VP-P] V14th Clamp pulse threshold voltage 1. Measuring conditions are as given in Supplementary Table. 2. Turn down the SG5 input level gradually, monitoring the output (about 2.0 VDC). Measure the SG5 input level when the output reaches 0V. W14 Clamp pulse minimum width Under the same conditions as given in V14th, reduce the SG5 pulse width gradually, monitoring the output. Measure the SG5 pulse C.T.2 Crosstalk2 (f=50MHz) C.T.2' Crosstalk2 (f=130MHz) 1. Change the input pin from pin 11 (R-ch) to pin 7 (G-ch), and measure the output in the same way as in C.T.1, C.T.1'. 2. Crosstalk C.T. 2 is calculated by the equation below: C.T.2 =20LOG (C.T.2') VOR or VOB VOG [VP-P] [dB] [VP-P] width when the output reaches 0V. PDCH Pedestal voltage temperatere characteristics1 PDCL Pedestal voltage temperatere characteristics2 1. Measuring conditions are as given in Supplementary Table. 2. Measure the pedestal voltage at room temperature. The measured value is called PDC1. 3. Measure the pedestal voltage at temperatures of -20C and 85C. The measured value is called, respectively, PDC2 and C.T.3 Crosstalk3 (f=50MHz) C.T.3' Crosstalk3 (f=130MHz) 1. Change the input pin from pin 11 (R-ch) to pin 3 (B-ch), and measure the output in the same way as in C.T.1, C.T.1'. 2. Crosstalk C.T. 3 is calculated by the equation below: C.T.3 =20LOG (C.T.3') VOR or VOG VOB [VP-P] [dB] [VP-P] PDC3. 4. PDCH=PDC1 - PDC2 PDCL=PDC1 - PDC3 V1th BLK input threshold voltage 1. Measuring conditions are as given in Supplementary Table. 2. Make sure that signals are not being output synchronously with SG7 (blanking period). 3. Reduce the SG7 input level gradually, monitoring output. Measure the SG7 level when the blanking period disappears. The measured value is called V1th. 6 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING INPUT SIGNAL SG No. Sine wave of amplitude 0.7VP-P (f=1MHz) SG1 Signals 0.7VP-P SG2 SG3 Sine wave with amplitude of 0.7VP-P (f=50MHz) Sine wave with amplitude of 0.7VP-P (f=130MHz) Pulse with amplitude of 0.7VP-P (f=30kHz, duty=50%) Pulses which are synchronous with SG4 pedestal portion SG4 0.7VP-P Pulses which are synchronous with standard video step waveform pedestal portion: amplitude, 2.0VP-P; and pulse width, 3.0s (pulse width and amplitude sometimes variable) SG5 0V 3.0s 2.0VP-P 3.0s SG6 Standard video step waveform Video signal with amplitude of 0.7VP-P (f=30kHz, amplitude sometimes variable) 4V SG7 OSD BLK signals 0V Pulses which are synchronous with standard video step waveform's video portions: amplitude, 4.0VP-P; and pulse width, 25s 7 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING TEST CIRCUIT 680 2.2 680 2.2 680 2.2 V16 30 29 28 VCC 27 26 GND 25 24 VCC 23 22 GND 21 20 VCC 19 18 NC 17 GND 16 M52733SP VCC 1 2 3 4 GND 5 VCC 6 7 8 GND 9 VCC 10 11 12 GND 13 14 15 SW1 a 0.01 b SW3 b V4 0.01 V8 SW11 b 0.01 V12 V14 SW15 SG7 a SW7 b a a a b SG4 0.01 A a b SWA 12V 100 SG1 SG2 SG3 SG4 SG6 Units Resistance : Capacitance : F TYPICAL CHARACTERISTICS THERMAL DERATING (MAXIMUM RATING) 1800 POWER DISSIPATION Pd (mW) 1600 1400 1200 1000 800 600 400 200 -20 0 25 50 75 85 100 125 150 AMBIENT TEMPERATURE Ta (C) 8 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING APPLICATION EXAMPLE 1 CRT 110V DC CLAMP 50k 50k 50k 14k 14k 14k 200 200 200 OSD IN 0 to 5V 680 30 29 28 27 26 25 680 24 23 22 21 680 20 19 NC 18 17 16 M52733SP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 to 5V 0 to 5V 0 to 5V 0 to 5V 12V OSD BLK IN INPUT (B) INPUT (G) INPUT (R) CLAMP Units Resistance : Capacitance : F 9 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING APPLICATION EXAMPLE 2 CRT 110V DC CLAMP OSD IN 0 to 5V 680 30 29 28 27 26 25 680 24 23 22 21 680 20 19 NC 18 17 16 M52733SP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 to 5V 0 to 5V 0 to 5V 0 to 5V 12V OSD BLK IN INPUT (B) INPUT (G) INPUT (R) CLAMP Units Resistance : Capacitance : F 10 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING DESCRIPTION OF PIN Pin No. Name DC voltage (V ) Peripheral circuit of pins VCC Description of function B-ch G-ch Input pulses of minimum 3V. 3 to 5V 1V maximum 2.5V GND 1 OSD BLK IN - 1 Connected to GND if not used. 0.9mA 2 6 10 VCC (B-ch) VCC (G-ch) VCC (R-ch) 12 - Apply equivalent voltage to 3 channels. VCC 2k 2k 3 7 11 INPUT (B) INPUT (G) INPUT (R) 2.5 Clamped to about 2.5V due to clamp pulses from pin 18. Input at low impedance. 2.5V CP 0.24mA GND VCC 4 8 12 14 Subcontrast (B) Subcontrast (G) Subcontrast (R) Main contrast 1.5k 2.5 23.5k 2.5V Use at maximum 5V for stable operation. GND 5, 26 9, 22 13, 17 30 GND (B-ch) GND (G-ch) GND (R-ch) GND GND - VCC 41k Input pulses of minimum 2.5V. 2.5V minimum 0.5V maximum 2.2V 15 CP IN - 18 Input at low impedance. GND 11 MITSUBISHI ICs (Monitor) M52733SP 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING DESCRIPTION OF PIN (CONT.) Pin No. Name DC voltage (V ) Peripheral circuit of pins VCC 20.3k Description of function 16 Main brightness - 19 B-ch G-ch GND VCC 19 23 27 Hold (R) Hold (G) Hold (B) 1k Variable A capacity is needed on the GND side. 0.2mA GND 20 24 28 VCC2 (R) VCC2 (G) VCC2 (B) Apply 12 Pin 20 Pin 24 Pin 28 Used to supply power to output emitter follower only. Apply equivalent voltage to 3 channels. A resistor is needed on the GND side. Set discretionally to maximum 15mA, depending on the required driving capacity. 21 25 29 OUTPUT (R) OUTPUT (G) OUTPUT (B) Variable 50 Pin 21 Pin 25 Pin 29 12 |
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