MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR DISCRIPTION M52746SP is Semiconductor Integrated Circuit for CRT Display Monitor. It includes OSD Blanking,OSD Mixing,Retrace Blanking,Wide Band Amplifre,Brightness Control. Main/Sub Contrast and OSD AdjustFunction can be controlled by I2C Bus. FEATURES Frequency Band Width: RGB 200 MHz (at -3dB) OSD 80 MHz Input : RGB 0.7 Vp-p (Typ) OSD light 4 Vp-p minimum (positive) OSD harf 2.5Vp-p minimum (positive) 3.0Vp-p maximum (positive) BLK(for OSD) 3 Vp-p minimum (positive) Retrace BLK 3 Vp-p minimum (positive) Output : RGB 5.5 Vp-p (maximum) OSD 5 Vp-p (maximum) PIN CONFIGURATION Brightness OSD IN (R) OSD IN (B) OSD IN (G) OSD BLK IN INPUT (R) VCC 12V NC INPUT (B) GND INPUT (G) VCC 12V INPUT(SOG) SOG Sep OUT GND Clamp Pulse IN 1 2 3 4 5 32 31 30 29 28 6 7 8 9 10 11 12 27 26 25 24 23 22 21 20 19 18 17 13 14 15 16 VCC 12V (R) OUTPUT(R) GND(R) VCC 12V (B) OUTPUT(B) GND(B) GND VCC 12V (G) OUTPUT(G) GND(G) Retrace BLK IN SDA SCL GND ABL IN VCC 5V Outside Package: 32P4B Main Contrast and Sub Contrast can be controlled by I2C Bus. STRUCTURE Bipola Silicon Monolisic IC APPLICATION 32 pin plastic SDIP CRT Display Monitor RECOMMENDED OPERATING CONDITIONS Supply Voltage Range 11.5V~12.5V(V7,V12,V25,V29,V32) 4.5V~4.4V(V17) Rated Supply Voltage 12.0V(V7,V12,V25,V29,V32) 5.0V(V17) MAJOR SPECIFICATION Bus Controlled 3ch Video Pre-Amp with OSD Mixing Function MITSUBISHI 1 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Absolute Maximum Rating (Ambient temperature: 25 C) Parameter Symbol Rating Unit Supply voltage 12 Vcc12 13.0 V Supply voltage 5 Vcc 5 6.0 V 2358 mW Power dissipation Pd Ambient temperature Topr -20~ +75 C Storage temperature Tstg -40~ +150 C Recommended supply 12 Vopr 12 12.0 V Recommended supply Vopr 5 5.0 V 5 voltage range 12 Vopr' 12 10.5~12.5 ( Typ 12.0V ) V voltage range 5 Vopr' 5 4.5~5.5 ( Typ 5.0V ) V Case temperature C/W 28 jc Thermal Derating Curve 2800 2400 2358 2000 1600 1415 1200 800 attached board 400 -20 0 25 50 75 100 125 150 Ambient temperature Ta( C) MITSUBISHI 2 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Fig. 1 Block Diagram MITSUBISHI 3 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR BUS CONTROL TABLE (1) Slave address: D7 D6 D5 D4 D3 D2 D1 R/W 1 0 0 0 1 0 0 0 =88H (2) Each function's sub address: NO. 1 2 3 4 5 function Main contrast Sub contrast R Sub contrast G Sub contrast B OSD level bit 8 8 8 8 4 Data Byte(up:bit information down:preset) sub add. D7 00H A07 01H 02H 03H 04H D6 D5 D4 D3 D2 D1 D0 A06 A05 A04 A03 A02 A01 A00 0 1 0 0 0 0 0 0 A17 A16 A15 A14 A13 A12 A11 A10 1 0 0 0 0 0 0 0 A27 A26 A25 A24 A23 A22 A21 A20 1 0 0 0 0 0 0 0 A37 A36 A35 A34 A33 A32 A31 A30 1 0 0 0 0 0 0 0 - - - - A43 A42 A41 A40 0 0 0 0 1 0 0 0 MITSUBISHI 4 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR 2 I C BUS CONTROL SECTION SDA,SCL CHARACTERISTICS symbol parameter MIN MAX unit min. input LOW voltage. VIL -0.5 1.5 V max. input HIGH voltage. VIH 3.0 5.5 V SCL clock frequency. fSCL 0 100 KHz Time the bus must be free before a new transmission can start. tBUF 4.7 - us Hold time start condition.After this period the first clock pulse is generated. tHD:STA 4.0 - us The LOW period of the clock. tLOW 4.7 - us The HIGH period of the clock. tHIGH 4.0 - us Srt up time for start condition. (Only relevant for a repeated start condition.) tSU:STA 4.7 - us Hold time DATA. tHD:DAT 0 - us Set-up time DATA. tSU:DAT 250 - ns Rise time of both SDA and SCL lines. tR - 1000 ns Fall time of both SDA and SCL lines. tF - 300 ns Set-up time for stop condition. tSU:STO 4.0 - us tR, tF tBUF VIL SDA VIH tHD:STA tHD:DAT tSU:DAT tSU:STA tSU:ST O VIL SCL VIH tLOW S tHIGH S MITSUBISHI P S 5 25 Gv Maximum gain Relative maximum gain 4 5 6 16 Sub contrast control relative characteristics 2 Sub contrast control characteristics 2 Sub contrast control relative characteristics 1 14 15 Sub contrast control characteristics 1 Main contrast control relative characteristics3 13 12 Main contrast control characteristics 3 Main contrast control relative characteristics 2 10 11 Main contrast control characteristics 2 Main contrast control relative characteristics 1 9 8 VSC2 VSC2 VSC1 VSC1 VC3 VC3 VC2 VC2 VC1 VC1 Gv Maximum input 3 Main contrast control characteristics 1 IN OUT Output dynamic Vomax range Vimax Circuit current2 2 7 OUT Icc2 Circuit current1 1 - OUT - OUT - OUT - OUT - OUT - OUT IB IA Icc1 parameter No Symbol Test Point(s) a a a b SG5 b SG5 b SG5 a - b SG1 - b SG1 - b SG1 - b SG1 - b AG1 - B SG1 Variable b SG2 b SG2 a - a - a - a - 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 - b SG5 b SG5 - a - a - a - a - a - a a - a - a - a - a - a - a a a a a 13 5 2 3 4 SOG OSD ReT RGB In BLK OSD In CP In BLK In 22 16 7 9 11 Input - 2.0 - 2.0 - 2.0 - 2.0 - 2.0 - 2.0 2.0 Variable 4.0 4.0 FFH FFH FFH FFH 00H Sub Sub Sub Main cont cont cont OSD cont R G B Adj 00H 01H 02H 03H 04H BUS CTL ( H ) 64H - - - - - - - - FFH 64H 64H 64H - 5.0 255 100 100 100 - FFH C8H C8H C8H - 14H 20 - 5.0 255 200 200 200 - 5.0 - 64H - 5.0 100 - C8H - 5.0 200 - FFH 5.0 255 5.0 100 5.0 5.0 5.0 255 255 255 255 0 Bright ABL 1 18 CTL voltage Supplementary Table1 Electrical Characteristics (Vcc= 12V,5V; Ta= 25 C unless otherwise specified) 0.8 9.0 0.8 15.5 0.8 0.1 0.8 9.0 0.8 15.0 0.8 17.1 1.6 6.0 - - 1.0 12.0 1.0 16.5 1.0 0.5 1.0 10.5 1.0 16.5 1.0 17.7 - 8.0 18 110 1.2 13.0 1.2 19.0 1.2 0.8 1.2 13.0 1.2 19.0 1.2 19.4 - - 35 135 MIN TYP MAX Standard - dB - dB - Vp-p - dB - dB - dB Vp-p Vp-p mA mA Unit Note16 Note15 Note14 Note13 Note12 Note11 Note10 Note9 Note8 Note7 Note6 Note5 Note4 Note3 Note2 Note1 Remark parameter ABL control Main/sub contrast control relative characteristics Main/sub contrast control characteristics Sub contrast control relative characteristics 3 VMSC VMSC VSC3 VSC3 ABL control ABL control relative characteristics 1 ABL1 Brightness control characteristics 2 Brightness control relative characteristics 2 27 28 Frequency 32 Frequency relative characteristics 1 (f=50MHz) (f=50MHz) 31 characteristics 1 30 Brightness control characteristics 3 Brightness control relative characteristics 3 Brightness control relative characteristics 1 26 29 VB1 Brightness control characteristics 1 25 FC1 FC1 VB3 VB3 VB2 VB2 VB1 ABL2 ABL control relative characteristics2 24 23 characteristics 2 ABL2 22 21 characteristics 1 ABL1 20 19 18 Sub contrast control 17 characteristics 3 No - - - a b SG3 OUT - - - a - a - a - a - a - a - a b SG1 OUT - OUT - OUT - OUT - - a b SG1 OUT a - a - b SG1 - b SG1 - - Input 16 22 - a - a - a - a - a - a - a - a - a 5V - b SG5 - b SG5 - b SG5 - b SG5 - b SG5 - b SG5 - b SG5 - a - a - a - a - a - a - a - a - a - a - a - a - a - a - a - a 13 5 2 3 4 SOG OSD ReT RGB In BLK OSD In CP In BLK In 7 9 11 - OUT - OUT Symbol Test Point(s) - Variable - 1.0 - 2.0 - 4.0 - 2.0 - 2.0 - 2.0 - 2.0 - 5.0 - 5.0 - 5.0 - 5.0 - 2.0 - 4.0 - 5.0 - 5.0 Bright ABL 1 18 CTL voltage - - - - - - - Vari able FFH FFH FFH FFH 255 255 255 255 - C8H C8H C8H C8H 200 200 200 200 - FFH 14H 14H 14H 00H 255 20 20 20 0 Sub Sub Sub Main cont cont cont OSD cont R G B Adj 00H 01H 02H 03H 04H BUS CTL ( H ) -1.0 -2.0 -0.3 0.5 -0.3 1.5 -0.3 3.3 0.8 1.7 0.8 4.7 0.8 3.6 0.8 0.1 0 0 0 0.9 0 1.8 0 3.8 1.0 2.2 1.0 5.5 1.0 4.6 1.0 0.5 1.0 2.5 0.3 1.1 0.3 2.1 0.3 4.2 1.2 2.7 1.2 6.3 1.2 4.8 1.2 0.8 MIN TYP MAX Standard dB dB - V - V - V - Vp-p - Vp-p - Vp-p - Vp-p Unit Note32 Note31 Note30 Note29 Note28 Note27 Note26 Note25 Note24 Note23 Note22 Note21 Note20 Note19 Note18 Note17 Remark CT2' CT3 Crosstalk 2 (f=200MHz) Crosstalk 3 (f=50MHz) 40 41 Pulse 48 47 45 Pedestal voltage temperature characteristics 2 Pedestal voltage temperature characteristics 1 PDCL PDCH OUT OUT OUT OUT OUT b SG1 b SG1 a a a b SG1 a a a a a a a a a - a - a b SG1 b SG1 b SG1 2a OUT(32) 6 a OUT(35) 11b SG3 2a OUT(32) 6 a OUT(35) 11b SG3 2a OUT(29) 6 b SG3 OUT(35) 11a 2a OUT(29) 6 b SG3 OUT(35) 11a Clamp pulse 46 minimum width WCP Tf - b SG3 - b SG3 2 b SG3 OUT(29) 6 a OUT(32) 11a OUT Clamp pulse threshold voltage Pulse characteristics 2 (4Vp-p) Tr Input 16 22 a a a a a a a a a a a a - a - a b SG5 b SG5 Variable b SG5 Variable b SG5 a 5V a a a a a a a 5V a a a a a a - a - a a 5V a 5V a 5V a 5V a 5V a 5V - a 5V - a 5V a a a a a a a a a a a a - a - a 13 5 2 3 4 SOG OSD ReT RGB In BLK OSD In CP In BLK In 7 9 11 2 b SG3 OUT(29) 6 a OUT(32) 11a - OUT - OUT VthCP 44 (4Vp-p) 43 characteristics 1 CT3' CT2 Crosstalk 2 (f=50MHz) 39 Crosstalk 3 (f=200MHz) CT1' Crosstalk 1 (f=200MHz) 38 42 CT1 FC2 FC2 FC1' FC1' Crosstalk 1 (f=50MHz) Frequency relative characteristics 2 (f200MHz) Frequency characteristics 2 (f=200MHz) Frequency relative characteristics 1 (f=200MHz) Frequency characteristics 1 (f=200MHz) parameter 37 36 35 34 33 No Symbol Test Point(s) 2.0 2.0 2.0 2.0 Variable Variable Variable Variable Variable Variable Variable Variable Variable Variable 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Bright ABL 1 18 CTL voltage FFH 255 Varia ble Varia ble FFH 255 Varia FFH FFH FFH 00H ble 255 255 255 0 Sub Sub Sub Main cont cont cont OSD cont R G B Adj 00H 01H 02H 03H 04H BUS CTL ( H ) -3.0 -3.0 0.2 1.0 - - - - - - - - -1.0 -3.0 -1.0 -3.0 - 0 0 1.5 2.2 2.2 -20 -25 -20 -25 -20 -25 0 3.0 0 0 0.3 0.3 - 2.0 2.8 2.8 -15 -20 -15 -20 -15 -20 1.0 5.0 1.0 3.0 MIN TYP MAX Standard V V uS V nS nS dB dB dB dB dB dB dB dB dB dB Unit Note48 Note47 Note46 Note45 Note44 Note43 Note42 Note41 Note40 Note39 Note38 Note37 Note36 Note35 Note34 Note33 Remark OSD adjust control characteristics 2 OSD adjust control relative characteristics 2 64 63 62 61 VthOSD2 VthOSD1 Oaj3 Oaj3 Oaj2 Oaj2 Oaj1 Oaj1 Ohaj2 OUT OUT OUT OUT OUT SOG minimum SS - SV input voltage S on G IN Sync OUT a a a a a b SG1 a a - - - a - a a a a OUT Input 16 22 a a a b SG6 b SG6 Variable b SG6 b SG6 b SG6 - b SG6 - b SG6 - b SG6 a a a a a b SG6 3V b SG6 3V a Variable b SG6 Variable b SG6 - b SG6 - b SG6 - b SG6 b SG6 b SG6 a a a a a - a - a - a a a a a a a b SG4 a a a a a a - a - a - a a a Variable b SG4 Variable b b SG7 SG5 Variable b SG5 b SG5 b SG5 b SG5 b SG5 - b SG5 - b SG5 - b SG5 b SG5 b SG5 13 5 2 3 4 SOG OSD ReT RGB In BLK OSD In CP In BLK In 7 9 11 OUT - OUT - OUT OUT OUT SOG input maximum noize SS - NV S on G IN Sync OUT voltage Retrace BLK i nput threshold VthRET voltag OSD half adjust control characteristics 2 Ohaj1 OSD BLK input threshold VthBLK voltage OSD input threshold voltage 2 OSD input threshold voltage 1 OSD half adjust control 60 characteristics 1 59 58 57 55 OSD adjust control characteristics 3 OSD adjust control relative 56 characteristics 3 54 53 52 characteristics 1 OSD adjust control relative OSD adjust control characteristics 1 OTf OSD pulse characteristics 2 50 51 OTr 49 parameter OSD pulse characteristics 1 No Symbol Test Point(s) 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 - 2.0 - 2.0 - 2.0 2.0 2.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 - 5.0 - 5.0 - 5.0 5.0 00H 0 08H 8 0FH 15 00H 0 08H 8 08H 8 - 00H 0 - 08H 8 - 0FH 15 08H 8 FFH FFH FFH FFH 08H Sub Sub Sub Main cont cont cont OSD cont R G B Adj 00H 01H 02H 03H 04H BUS CTL ( H ) 5.0 255 255 255 255 8 Bright ABL 1 18 CTL voltage 0.2 - 1.0 1.9 3.7 2.2 1.5 3.1 0.8 0 0.8 3.4 0.8 5.6 - - - - 1.5 2.5 4.3 2.7 2.0 3.5 1.0 0.7 1.0 4.0 1.0 6.4 3.0 3.0 - 0.03 2.0 3.0 4.9 3.2 2.5 3.9 1.2 1.2 1.2 4.6 1.2 7.2 6.0 6.0 MIN TYP MAX Standard Note50 Note49 Remark Note52 Note54 Note60 Note59 Note58 Note57 Note56 Note62 Vp-p Note64 Vp-p Note63 V Vp-p Note61 Vp-p V V V - Vp-p Note55 - Vp-p Note53 - Vp-p Note51 ns ns Unit Sync Output Lo Level 66 Icc (power save mode) Sync Output Delay Time2 spot killer 70 function voltage 69 68 Sync Output Delay Time1 Sync Output Hi Level 65 67 parameter No skv Iccps TDS-R TDS-F VSL VSH Vcc (12V) Ips Sync OUT Sync OUT Sync OUT Sync OUT Symbol Test Point(s) Input 16 22 b SG 1 a a a a a a a a a a a a a a a a a b SG 5 b SG 5 a a a a a a a a a a a a b SG4 b SG4 b SG4 b SG4 13 5 2 3 4 SOG OSD ReT RGB In BLK OSD In CP In BLK In 7 9 11 2.0 4.0 2.0 2.0 2.0 2.0 FFH FFH FFH FFH 00H Sub Sub Sub Main cont cont cont OSD cont R G B Adj 00H 01H 02H 03H 04H BUS CTL ( H ) FFH FFH FFH FFH 00H 5.0 255 255 255 255 0 5.0 255 255 255 255 0 5.0 5.0 5.0 5.0 Bright ABL 1 18 CTL voltage 9.4 - 0 0 0 4.5 10.0 22 60 60 0.3 4.9 10.4 30 90 90 0.6 5.0 MIN TYP MAX Standard Note69 Note68 Note67 Note66 Note65 Remark VDC Note70 mA ns ns V V Unit MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Note1) Measuring conditions are as listed in supplementary Table. Measured with a current meter at test point IA. Note2) Measuring conditions are as listed in supplementary Table. Measured with a current meter at test point IB. Note3) Decrease V1 gradually, and measure the voltage when the bottom of waveform output is distorted. The voltage is called VCL. Next, increase V1 gradually, and measure the voltage when the top of waveform output is distorted. The voltage is called VOH. Voltagr Vomax is calculated by the equation below: Vomax = VOH - VOL (V) VOH 5.0 Waveform output VOL 0.0 Note4) Increase the input signal(SG2) amplitude gradually, starting from 700mVp-p. Measure the amplitude of the input signal when the output signal starts becoming distorted. Note5) Input SG1, and read the amplitude output at OUT(24,28,31). The amplitude is called VOUT(24,28,31).Maximum gain GV is calculated by the equation below: VOUT GV=20 LOG (dB) 0.7 Note6) Relative maximum gain GV is calculated by the equation below: GV=VOUT(24)/VOUT(18), VOUT(28)/VOUT(31), VOUT(31)/VOUT(24) Note7) Measuring the amplitude output at OUT(24,28,31). The measured value is called VOUT(24,28,31). Main contrast conrol characteristics VC1 is calculated by the equation below: VOUT VC1=20 LOG (dB) 0.7 Note8) Relative characteristics VC1 is calculated by the equation below: VC1=VOUT(24)/VOUT(28) , VOUT(28)/VOUT(31) , VOUT(31)/VOUT(24) Note9) Measuring condition and procedure are the same as described in Note7. Note10) Measuring condition and procedure are the same as described in Note8. Note11) Measuring condition and procedure are the same as described in Note7. Note12) Measuring condition and procedure are the same as described in Note8. MITSUBISHI 11 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Note13) Measure the amplitude output at OUT(24,28,31). The measured value is called VOUT(24,28,31). Sub contrast conrol characteristics VSC1 is calculated by the equation below: VOUT VSC1=20 LOG (dB) 0.7 Note14) Relative characteristics VSC1 is calculated by the equation below: VSC1=VOUT(24)/VOUT(28) , VOUT(28)/VOUT(31) , VOUT(31)/VOUT(24) Note15) Measuring condition and procedure are the same as described in Note13. Note16) Measuring condition and procedure are the same as described in Note14. Note17) Measuring condition and procedure are the same as described in Note13. Note18) Measuring condition and procedure are the same as described in Note14. Note19) Measure the amplitude output at OUT(24,28,31). The measured value is called VOUT(24,28,31). Main/Sub contrast conrol characteristics VMSC1 is calculated by the equation below: VOUT VMSC1=20 LOG (dB) 0.7 Note20) Relative characteristics VMSC1 is calculated by the equation below: VMSC=VOUT(24)/VOUT(28) , VOUT(28)/VOUT(31) , VOUT(31)/VOUT(24) Note21) Measure the amplitude output at OUT(24,28,31). The measured value is called VOUT(24,28,31), and is ttreated as ABL1. Note22) Relative characteristics ABL1 is calculated by the equation below: ABL1=VOUT(24)/VOUT(28) , VOUT(28)/VOUT(31) , VOUT(31)/VOUT(24) Note23) Measuring condition and procedure are the same as described in Note21. Note24) Measuring condition and procedure are the same as described in Note22. Note25) Measure the DC voltage at OUT(24,28,31) with a voltmeter. The measured value is called VOUT(24,28,31), and is ttreated as VB1. Note26) Relative characteristics VB1 is calculated by the difference in the output between the channels. VB1=VOUT(24)-VOUT(28) , VOUT(28)-VOUT(31) , VOUT(31)-VOUT(24) Note27) Measuring condition and procedure are the same as described in Note25. Note28) Measuring condition and procedure are the same as described in Note26. Note29) Measuring condition and procedure are the same as described in Note25. Note30) Measuring condition and procedure are the same as described in Note26. MITSUBISHI 12 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Note31) First, SG3 to 1MHz is as input signal. Input a resister that is about 2K to offer the voltage at input pins(6,9,11) in order that the bottom of input signal is 2.5V. Control the main contrast in order that the amplitude of sine wave output is 4.0Vp-p. Control the brightness in order that the bottom of sine wave output is 2.0Vp-p. By the same way, measure the output amplitude when SG3 to 50MHz is as input signal. The measured value is called VOUT(24,28,31). Frequency characteristics FC1(24,28,31) is calculated by the equation below: FC1=20 LOG Note32) Relative characteristics VOUT Vp-p output amplitude when inputed SG3(1MHz) : 4.0Vp-p (dB) FC1 is calculated by the difference in the output between the channels. Note33) Measuring condition and procedure are the same as described in Note31,expect SG3 to 200MHz. Note34) Relative characteristics FC1' is calculated by the difference in the output between the channels. Note35) SG3 to 1MHz is as input signal. Control the main contrast in order that the amplitude of sine wave output is 1.0Vp-p. By the same way, measure the output amplitude when SG3 to200MHz is as input signal. The measured value is called VOUT(24,28,31). Frequency characteristics FC2(24,28,31) is calculated by the equation below: FC2=20 LOG Note36) Relative characteristics VOUT Vp-p output amplitude when inputed SG3(1MHz) : 4.0Vp-p (dB) FC2 is calculated by the difference in the output between the channels. Note37) Input SG3 (50MHz) to pin2 only, and then measure the waveform amplitude output at OUT(24,28,31).The measured value is called VOUT(24,28,31). Crosstalk CT1 is calculated by the equation below: CT1=20 LOG VOUT(24,28) VOUT(31) (dB) Note38) Measuring condition and procedure are the same as described in Note37,expect SG3 to 200MHz. Note39) Input SG3 (50MHz) to pin6 only, and then measure the waveform amplitude output at OUT(24,28,31).The measured value is called VOUT(24,28,31). Crosstalk CT2 is calculated by the equation below: CT2=20 LOG VOUT(24,31) VOUT(28) (dB) Note40) Measuring condition and procedure are the same as described in Note39,expect SG3 to 200MHz. Note41) Input SG3 (50MHz) to pin11 only, and then measure the waveform amplitude output at OUT(24,28,31).The measured value is called VOUT(24,28,31). Crosstalk CT2 is calculated by the equation below: VOUT(28,31) CT3=20 LOG VOUT(24) (dB) Note42) Measuring condition and procedure are the same as described in Note41,expect SG3 to 200MHz. MITSUBISHI 13 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Note43) Control the main contrast (00H) in order that the amplitude of output signal is 4.0Vp-p. Control the brightness (V1) in order that the Black level of output signal is 2.0V. Measure the time needed for the input pulse to rise from 10 % to 90 % (Tr1) and for the output pulse to rise from 10 % to 90 % (Tr2) with an active prove. Pulse characteristics Tr is calculated by the equations below : Tr = 2 (Tr2) - (Tr1) 2 (nsec) Note44) Measure the time needed for the input pulseto fall from 90 % to 10 % (Tf1) and for the output pulse to fall from 90 % to 10 % (Tf2) with an active prove. Pulse characteristics Tf is calculated by the equations below : 2 Tf = (Tf2) - (Tf1) 2 (nsec) 100% 90% 10% 0% Tr1 or Tr2 Tf1 or Tf2 Note45) Turn down the SG5 input level gradually from 5.0Vp-p, monitoring the waveform output. Measure the top level of input pulse when the output pedestal voltage turn decrease with unstable. Note46) Decrease the SG5 pulse width gradually from 0.5us, monitoring the output. Measure the SG5 pulse width (a point of 1.5V) when the output pedestal voltage turn decrease with unstable. Note47) Measure the pedestal voltage at 25 C. The measured value is called PDC1. Measure the pedestal voltage at temperature of -20 C. The measured value is called PDC2. Pedestal voltage temperature characteristics 1 is calculated by the equation below: PDCH=PDC1-PDC2 Note48) Measure the pedestal voltage at 25 C. The measured value is called PDC1. Measure the pedestal voltage at temperature of 75 C. The measured value is called PDC3. Pedestal voltage temperature characteristics 2 is calculated by the equation below: PDCL=PDC1-PDC3 MITSUBISHI 14 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Note49) Measure the time needed for the output pulse to rise from 10% to 90%(OTR) with an active prove. Note50) Measure the time needed for the output pulse to fall from 90% to 10% (OTF) with an active prove. Note51) Measure the amplitude output at OUT(24,28,31). The measured value is called VOUT(24,28,31), and is treated as Oaj1. Note52) Relative characteristics Oaj1 is calculated by the equation below: Oaj1=VOUT(24)/VOUT(28), VOUT(28)/VOUT(31), VOUT(31)/VOUT(24) Note53) Measuring condition and procedure are the same as described in Note51. Note54) Measuring condition and procedure are the same as described in Note52. Note55) Measuring condition and procedure are the same as described in Note51. Note56) Measuring condition and procedure are the same as described in Note52. Note57) Reduce the SG6 input level gradually, monitoring output. Measure the SG6 level when the output reaches 65~75% of first voltage. The measured value is called VthOSD1. Note58) Reduce the SG6 input level gradually, monitoring output. Measure the SG6 level when the output reaches 0V. The measured value is called VthOSD2. Note59) Confirm that output signal is being blanked by the SG6 at the time. Monitoring to output signal, decreasing the level of SG6. Measure the top level of SG6 when the blanking period is disappeared. The measured value is called VthBLK. Note60) Measure the amplitude output at OUT(24,28,31). The measured value is called VOUT(24,28,31), and is treated as Ohaj1. Note61) Measure the amplitude output at OUT(24,28,31). The measured value is called VOUT(24,28,31), and is treated as Ohaj2. Note62) Confirm that output signal is being blanked by the SG7 at the time. Monitoring to output signal, decreasing the level of SG7. Measure the top level of SG7 when the blanking period is disappeared. The measured value is called VthRET. MITSUBISHI 15 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Note63) The sync's amplitude of SG4 be changed all white into all black, increase from 0Vp-p to 0.03Vp-p. No pulse output permitted. Note64) The sync's amplitude of SG4 be changed all white or all black, decrease from 0.3Vp-p to 0.2Vp-p. Confirm no malfunction produced by noise. Note65) Measure the high voltage at SyncOUT. The measured value is treated as VSH. Note66) Measure the low voltage at SyncOUT. The measured value is treated as VSL. Note67) SyncOUT becomes High with sink part of SG4. Measure the time needed for the rear edge of SG4 sink to fall from 50 % and for SyncOUT to rise from 50 % with an active prove. The measured value is treated as TDS-F ,less than 90nsec. Note68) Measure the time needed for the rear edge of SG4 sink to rise from 50 % and for SyncOUT to fall from 50 % with an active prove. The measured value is treated as TDS-R ,less than 90nsec. SG4 Pedestal voltage sync (50%) SyncOUT TDS-F (50%) TDS-R Note69) No input at the Vcc of 12V when same condition by Note2 . Measure the AC current at Vcc(5V). The measured value is treated as Iccps. Note70) The Vcc of 12V be changed all white into all black, increase from 12V to 0V. Measure the DC voltage at the Vcc When no output signal at R, G and Bout. The measured value is treated as skv. MITSUBISHI 16 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR SG No. INPUT SIGNAL Pulse with amplirude of 0.7Vp-p (f=30KHz). Video width of 25us. (75 % ) 33us SG1 8us Video signal (all white) 0.7VPP SG2 0.7VP-P (Amplitude is partially variable.) Video signal (step wave) SG3 Sine wave Sine wave amplitude of 0.7Vp-p. f=1MHz,50MHz,200MHz(variable) (for freq. char.) Video width of 25us. (75 % ) SG4 all white or all black variable. 0.7VP-P Videosignal 0.3VPP 3us (all white,all black) Sync's amplitude is variable. Pulse width and amplitude are variable. 0.5us SG5 5VTTL Clamp pulse SG6 5VTTL OSD pulse Amplitude is partially variable. 5us SG7 5VTTL BLK pulse Amplitude is partially variable. 5us *)f=30KHz MITSUBISHI 17 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR TEST CIRCUIT + + + MITSUBISHI 18 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Terminal Description No. Name DC Voltage (V) peripheral Circuit Remark It is recommended that the IC be used between pedestal 35K voltage 2V and 3V. 1 Main Brightness 1 Input pulses 2 4.0~5V(light) 2.5~3V(half) OSD IN (R) 1K 1.5V~GND 3 OSD IN (B) Connected to GND if not used. 4 OSD IN (G) 2.0V 3.5V 0.5mA Input pulses R 3.7~5V G 5 OSD BLK IN 5 1.7V~GND B Connected to GND if 0.4mA not used. 2.7V Clamped to about 2.5 V 2K due to clamp pulses 2K from pin 19. 6 INPUT (R) Input at low impedance. 9 INPUT (B) 11 INPUT (G) 2.5 2.5V CP 0.3mA 7 12 VCC Vcc 12 MITSUBISHI 19 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR No. Name 8 NC 10 15 19 26 GND 13 INPUT (S on G) DC Voltage (V) peripheral Circuit Remark GND When open ~ ~ 2.5V 500 1K 3.2V SYNC ON VIDEO input pin. Sync is negative. input signal at Pin7, compare with the reference voltage of internal circuit in order to separate sync signal from Sync on Green signal. 7 Sync signal output pin, Being of open collector output type. 18 14 S on G Sep OUT Input pulses 41K 2.5~5V 16 Clamp Pulse IN 0.5V maximum 19 Input at low impedance. 2.2V 0.15mA 17 VCC (5V) MITSUBISHI 20 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR No. Name DC Voltage (V) peripheral Circuit Remark ABL(Automatic Beam Limitter) input pin. Recommended voltage range is 0 to 5V. When ABL function is not used, set to 5V. 2.5V 20K 18 ABL IN When open 2.5V 1.2K 1.2K 30K 0.5mA 15 2 SCL of I C BUS (Serial clock line) 50K 20 SCL VTH=2.3V 20 2K 3V 2 SDA of I C BUS (Serial data line) 50K VTH=2.3V 21 SDA 21 2K 3V Input pulses 50K R 2.5~5V G 0.5V maximum B 22 Retrace BLK IN 22 Connected to GND if not used. 2.25V MITSUBISHI 21 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR No. Name 23 GND (B) 27 GND (G) 30 GND (R) DC Voltage (V) peripheral Circuit GND of Rch, Gch and Bch 0 A resistor is needed on the GND 50 24 OUTPUT (B) 28 OUTPUT (G) 31 OUTPUT (R) Remark side. Set discretionally to maximum Variable 50 driving capacity. Used to supply power to 25 output emitter follower only. 12 29 32 15 mA, depending on the required VCC 2 Impre ssed MITSUBISHI 22 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Electrical Chracteristics Main Contrast Control Characteristics Sub Contrast Control Characteristics 6 6 4 4 2 2 Sub Contrast : MAX 000H Main Contrast : MAX 000H FFH Main Contrast Control Data OSD Adjust Control Characteristics Sub Contrast Control Data ABL Characteristics FFH 6 4 2 Main Contrast : MAX Sub Contrast : MAX 0 0H 6 OSD Adjust Control Data Brightness Control Characteristics 0 FH 12 ABL Control Voltage(VDC) 5 Sync separate input min sync width (Video Duty=75 % ) 8 4 Sync separate normal operating range 4 7 100K 2 1u 00 Brightness Control Voltage(VDC) 5 IN 0 MITSUBISHI input amplitude(Vp-p) 23 0.5 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR Application Method for M52746SP CLAMP PULSE INPUT Clamp pulse width is recommended above 15 KHz, 1.0 usec above 30 KHz, 0.5 usec above 64 KHz, 0.3 usec . 19 The clamp pulse circuit in ordinary set is a long round about way, and beside high voltage, sometimes connected to external terminal, it is very easy affected by large surge. Therefore, the Fig. shown right is recommended. ~ Notice of application Make the nearest distance between output pin and pull down resister. Recommended pedestal voltage of IC output signal is 2V. MITSUBISHI 24 25 MITSUBISHI< LINEAR IC > M52746SP BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR APPLICATION 110V EXAMPLE CRT Cut Off Adjj DAC IC 5VTTL BLK IN (for retrace) SDA 4.7u 0.01u 4.7u 4.7u 0.01u 1K 0.01u 1K SCL 1K 0 ~ 5V 32 31 30 29 28 27 26 25 24 23 22 21 20 12 13 ABL IN 19 18 17 14 15 16 M52746SP 1 2 3 4 5 6 7 8 10 9 11 0.01u NC 0.01uu 100K 1K 1u 3.3u 3.3u 0.01u Sync Sep OUT 47u 47u 0~5V 3.3u 0.01u 0.01u 75 75 ClampPulse IN 75 5VTTL BLK IN (for OSD) OSD IN (G) 5VTTL 2.5VTTL 5VTTL 2.5VTTL 5VTTL OSD IN (B) 2.5VTTL OSD IN (R) 12V 0.01u 47u 5V INPUT (R) INPUT (B) INPUT (G) SONG INPUT MITSUBISHI 25 25