M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative description M52739FP is integrated circuit for lcd display monitor.it is controlled iic bus and band wide is 180mhz. it includes osd blanking ,osd mixing,wide band amplifier,main/sub contrast main/sub brightness ,and 2 input routes. vcc voltage is 5v and flat package is used. then it is the suitable to lcd monitor. recommended operating conditions supply voltage range 4.7v 5.3v rated supply voltage 5.0v consumption of electricity 800mw outline:42p9r-b osd blk in r input1 r vcc1 r osd in r gnd 1 g input1 g vcc1 g osd in g gnd 1 b input1 b vcc1 b osd in b gnd 1 digital vcc r vcc2 digital gnd sda scl clamp pulse in gnd 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 gnd gnd r input2 g input2 b input2 r output r gnd2 g vcc2 g output g gnd2 b vcc2 b output b gnd2 gnd analog vcc analog gnd gnd gnd gnd gnd 1 gnd gnd pin configuration 1.frequency : band width 2.input : 3.output : 4.contrast : 5.brightness : 6.osd adjust : features rgb input d range:max1v p-p positive 2 input routes is changed by iic bus rgb osd 3.5v p-p 5.0v p-p (positive) osd blk 3.5v p-p 5.0v p-p (positive) rgb 2.2v p-p (max) osd 2.0v p-p (max) output dynamic range 0.5 3.0v it can drive 14pf both of sub and main contrast are controlled by iic bus(8bit). control range :-15db +15db. rgb 180mhz(at -3db) osd 80mhz 2 control ranges (max1v p-p or max2v p-p ) are able to be changed by iic bus. both of sub and main contrast are controlled by iic bus(8bit). control range :0.5v 3.0v.
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative block diagram
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative -20 +75 vcc pd topr tstg vopr vopr' 6.0 1700 -40 +150 5.0 4.7 5.3 v mw c 3 0 25 50 75 100 125 1.0 2.0 3.0 150 2.8 1.68 parameter symbol rating unit supply voltage ambient temperature storage temperature recommended supply power dissipation voltage range thermal derating curve ambient temperature ta( c)
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative no. function bit sub data byte add. d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 r/w 1 0 0 0 1 0 0 0 =88h M52739FP 1 main contrast 8 01h a07 a06 a05 a04 a03 a02 a01 a00 0 1 0 0 0 0 0 0 2 sub contrast r 8 02h a17 a16 a15 a14 a13 a12 a11 a10 1 0 0 0 0 0 0 0 3 sub contrast g 8 03h a27 a26 a25 a24 a23 a22 a21 a20 1 0 0 0 0 0 0 0 4 sub contrast b 8 04h a37 a36 a35 a34 a33 a32 a31 a30 0 0 0 0 0 0 0 5 osd level 4 05h 6 06h 7 07h 8 08h 9 09h 00h - - - - - - - a90 0 0 0 0 0 0 0 0 main bright sub bright r sub bright g sub bright b 8 8 8 8 a47 a46 a45 a44 a43 a42 a41 a40 1 0 0 0 0 0 0 a57 a56 a55 a54 a53 a52 a51 a50 1 0 0 0 0 0 0 0 a67 a66 a65 a64 a63 a62 a61 a60 1 0 0 0 0 0 0 0 a77 a76 a75 a74 a73 a72 a71 a70 1 0 0 0 0 0 0 0 - - - - a83 a82 a81 a80 0 0 0 0 0 0 0 input sw 10 1 1 0 0 4 11 osd sw 1 0ah - - - - - - - aa0 0 0 0 0 0 0 0 0 (1) slave address: bus control table (2) each function's sub address:
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative t r, t f t buf t low t high t hd:dat t su:dat sda scl v il v ih v il v ih t hd:sta t su:sta t su:sto s s p s 5 sda,scl characteristics parameter symbol min max unit min. input low voltage. max. input high voltage. scl clock frequency. time the bus must be free before a new transmission can start. hold time start condition.after this period the first clock pulse is generated. the low period of the clock. the high period of the clock. srt up time for start condition. (only relevant for a repeated start condition.) hold time data. set-up time data. rise time of both sda and scl lines. fall time of both sda and scl lines. set-up time for stop condition. f scl t buf t hd:sta t low t high t su:sta t hd:dat t su:dat t r t f t su:sto v il v ih -0.5 1.5 v 3.0 5.5 v 0 100 khz 4.7 4.0 4.7 4.0 4.7 0 250 1000 300 4.0 us ns ns ns us us us us us us - - - - - - - - - - i c bus control section 2
if sw connect is not designated rgb input sw : sw(30,35,40)=a(b) sw(32,37,42)=b (a),sw(2,5,9,16,19,20,23,24,25,26,27)= a unit min typ max no rgb input signal bus ctl ( h ) 00h main cont 01h 02h 03h 08h sub cont 1 sub cont 2 sub cont 3 osd adj mitsubishi 21 04h main brt 05h 06h 07h sub brt1 sub brt2 sub brt3 09h input sw sw connect supply voltage vcc=5v ta=25 c 0ah osd sw parameter symbol test point M52739FP iic bus controlled 3channel video pre-amplifier for lcd display monitor. tentative mitsubishi standard 1 2 3 4 5 6 7 8 circuit current1 output dynamic range maximum input1 maximum gain relative maximum gain main contrast control characteristics 1 main contrast control characteristics 2 sub contrast control characteristics 1 sub contrast control characteristics 2 icc1 ma 100 vomax sg2 vimax2 sg2 amplitude variable gv gv 9 vc1 vc2 vsc1 vsc2 i a main contrast control characteristics 3 vc3 out 10 11 a6h 166 00h 0 ffh 255 c8h 200 64h 100 14h 20 64h 100 64h 100 64h 100 c8h 200 c8h 200 c8h 200 2.2 vp-p 12.0 15.0 18.0 vp-p db 0.8 1.0 1.2 7.1 8.6 10.1 db 4.2 db 0.2 0.4 0.6 vp-p db db in out 130 2.7 5.7 main/sub contrast control characteristics main brightness control characteristics 1 main brightness control characteristics 2 vmsc vb1 vb2 vb3 vp-p 2.0 1.7 2.3 sub contrast control characteristics 3 vsc3 14h 20 14h 20 14h 20 12 13 14 15 16 17 18 19 25 26 27 28 29 30 31 vp-p 2.2 2.5 2.8 1.3 1.5 1.7 0.3 0.5 0.7 1.8 2.0 2.2 1.3 1.5 1.7 v v v 0.8 1.0 1.2 sg1 6 vsb1 vsb2 vsb3 00h 0 00h 0 00h 0 00h 0 maximum input2 vimax1 sg2 amplitude variable a6h 166 a6h 166 a6h 166 7fh 127 7fh 127 7fh 127 7fh 127 variable 40h 64 7fh 127 7fh 127 7fh 127 1.0 vp-p ffh 255 ffh 255 ffh 255 7fh 127 7fh 127 7fh 127 7fh 127 a6h 166 a6h 166 a6h 166 a6h 166 a6h 166 a6h 166 a6h 166 a6h 166 ffh 255 7fh 127 7fh 127 ffh 255 ffh 255 ffh 255 7fh 127 7fh 127 7fh 127 00h 0 00h 0 00h 0 v v v out out in out out out out out out out out out out out out out sg1 sg1 sg1 sg1 sg1 sg1 sg1 rgbinput sw =a(all) sw(30,35,40)=b sw(32,37,42)=a 00h 0 1.0 7.1 8.6 10.1 4.2 0.2 0.4 0.6 2.7 5.7 frequency characteristics 3 (180mhz-1vpp) frequency relative characteristics 3 (180mhz-1vpp) fc4 crosstalk 1 input1 - 2 50mhz-1 inct1 fc2 00h 0 out out -3.0 0 3.0 db -1.0 0 1.0 db -3.0 3.0 5.0 db -1.0 0 1.0 db -50 -40 db -30 -20 db db db frequency characteristics 1 (50mhz-2vpp) frequency relative characteristics 1 (180mhz-2vpp) fc1 out sg3 a6h 166 crosstalk 1' input1 - 2 50mhz-1 inct1' out(2) frequency characteristics 4 (180mhz-2vpp) fc3 out sg3 sg3 sg3 sw(2,5,9)=b sg3 sg3 crosstalk 2 input1 - 2 50mhz-2 inct2 crosstalk 2' input1 - 2 50mhz-2 inct2' sg3 sg3 -1.0 0 1.0 db 37h 55 a6h 166 40h 64 7fh 127 7fh 127 7fh 127 db db frequency relative characteristics 4 (180mhz-2vpp) db -1.0 0 1.0 -3.0 3.0 5.0 -1.0 0 1.0 sw(42)=b,other sw=a sw(37)=b,other sw=a -50 -40 -30 -20 out(5) out(9) out(2) out(5) out(9) out(2) out(5) out(9) out(2) out(5) out(9) sw(32)=b,other sw=a sw(40)=b,other sw=a sw(35)=b,other sw=a sw(30)=b,other sw=a 01h 1 00h 0 20 21 22 23 24 main brightness control characteristics 3 sub brightness control characteristics 1 sub brightness control characteristics 2 sub brightness control characteristics 3 frequency characteristics 2 (50mhz-2vpp) frequency relative characteristics 2 (50mhz-2vpp) rgbinput sw =a(all) variable variable variable d fc1 d fc2 d fc3 d fc4 variable
if sw connect is not designated rgb input sw : sw(30,35,40)=a(b) sw(32,37,42)=b (a),sw(2,5,9,16,19,20,23,24,25,26,27)= a unit min typ max no rgb input signal bus ctl ( h ) 00h main cont 01h 02h 03h 08h sub cont 1 sub cont 2 sub cont 3 osd adj mitsubishi 21 04h main brt 05h 06h 07h sub brt1 sub brt2 sub brt3 09h input sw sw connect supply voltage vcc=5v ta=25 c 0ah osd sw parameter symbol test point M52739FP iic bus controlled 3channel video pre-amplifier for lcd display monitor. tentative mitsubishi standard pulse characteristics tr1 tr1 tf2 vthcp wcp 00h 0 out out out out -25 -20 db -15 -10 db 1.7 0.0 ns ns v us 1.5 2.0 2.5 0.2 0.5 sg1 7 relative pulse characteristics tr1 a6h 166 a6h 166 a6h 166 a6h 166 crosstalk 1 between rgb ch 50mhz-1 chct1 chct1' out out sg3 sg3 sg1 sg1 sg1 crosstalk 2 between rgb ch 50mhz-2 crosstalk 2' between rgb ch 180mhz-2 chct2 chct2' out out sg3 sg3 crosstalk 3 between rgb ch 50mhz-3 crosstalk 3' between rgb ch 50mhz-3 chct3 chct3' out out sg3 sg3 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 56 55 sw(42)=b ,othersw=a sw(32)=b ,othersw=a 40h 64 7fh 127 7fh 127 7fh 127 db db ns ns -25 -20 -15 -10 -0.8 -0.8 1.7 0.0 -0.8 -0.8 sw(37)=b ,othersw=a -25 -20 -15 -10 db db oaj1 osd pulse characteristics tr otr1 otf2 out out 01h 1 vp-p oaj2 out vp-p sw(24,25, 26,27)=b 0fh 15 ns ns 40h 64 7fh 127 7fh 127 7fh 127 00h 0 00h 0 00h 0 00h 0 3.0 6.0 3.0 6.0 2.0 2.3 1.7 0.8 1.0 1.2 0.8 1.0 1.2 1.0 1.3 0.7 57 a6h 166 a6h 166 a6h 166 a6h 166 oaj3 out oaj4 out osd blk characteristics osd blk relative characteristics o blk vthosd vthblk out out out sg1 sw(27)=b sw(24,25,26,27)=b 32 pdch pdcl out out v v 0.0 0.0 sg1 sg1 58 59 00h 0 01h 1 vp-p vp-p 1.0 1.3 0.7 0.8 1.0 1.2 0.8 1.0 1.2 0.5 0.7 0.3 vp-p -0.15 0.0 0.15 0.0 0.0 0.2 v v 2.5 3.0 2.0 2.5 3.0 2.0 0fh 15 01h 1 00h 0 00h 0 01h 1 pulse characteristics tr2 relative pulse characteristics tr2 osd input threshold voltage osd blk input threshold voltage clamp pulse threshold voltage clamp pulse minimum width osd adjust control characteristics 1 osd adjust control relative characteristics 1 osd adjust control characteristics 2 osd adjust control relative characteristics 2 osd adjust control characteristics 3 osd adjust control relative characteristics 3 osd adjust control characteristics 4 osd adjust control relative characteristics 4 osd input threshold voltage osd blk input threshold voltage d tr1 d tf2 d oaj1 d oaj2 d oaj3 d oaj4 d o blk crosstalk 1' between rgb ch 180mhz-1 osd pulse characteristics tf
if sw connect is not designated rgb input sw : sw(30,35,40)=a(b) sw(32,37,42)=b (a),sw(2,5,9,16,19,20,23,24,25,26,27)= a unit min typ max no rgb input signal bus ctl ( h ) 00h main cont 01h 02h 03h 08h sub cont 1 sub cont 2 sub cont 3 osd adj mitsubishi 21 04h main brt 05h 06h 07h sub brt1 sub brt2 sub brt3 09h input sw sw connect supply voltage vcc=5v ta=25 c 0ah osd sw parameter symbol test point M52739FP iic bus controlled 3channel video pre-amplifier for lcd display monitor. tentative mitsubishi standard 60 61 62 63 64 65 66 67 68 69 8 pin24 25 26 input current h i 19h i 20h i osdh i 27h i 19 i 20 i 24 i 27 sw(19)=b v19=5v sw(20)=b v20=5v sw(24,25,26)=b vosd=5v sw(27)=b v27=5v ma na ua i 25 i 26 pin16 input current l i 16l i 16 sw(16)=b v16=0v i 19l i 19 sw(19)=b v19=0v i 20l i 20 sw(20)=b v20=0v i osdl i 24 sw(24,25,26)=b vosd=0v i 25 i 26 pin24 25 26 input current l i 27l i 27 sw(27)=b v27=0v ma ma ma 0.7 0 -1.3 1.5 -1.3 40 na ua 0 0.7 pin16 input current h i 16h i 16 sw(16)=b v16=5v ua -0.7 ma 1.5 pin19 input current l pin19 input current h pin20 input current l pin20 input current h pin27 input current l pin27 input current h
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 9 1) 2) increase the input signal(sg2) at input1 amplitude gradually, starting from 700mvp-p. measure the amplitude of the input signal when the output signal starts becoming distorted. gv = vout(2) / vout(5), vout(5) / vout(9), vout(9) / vout(2) relative maximum gain gv is calculated by the equation below: vout 0.7 gv = 20 log (db) input sg1, and read the amplitude output at out(2,5,9). the amplitude is called vout(2,5,9).maximum gain gv is calculated by the equation below: measuring the amplitude output at out(2,5,9). the measured value is called vout(2,5,9). vout 0.7 vc1=20 log (db) measuring condition and procedure are the same as described in note7. 3) 5) 6) 7) 8) 9) 10) 11) 12) measuring conditions are as listed in supplementary table. measured with a current meter at test point ia. decrease main brt or sub brt gradually, and measure the voltage when the bottom of waveform output is distorted. the voltage is called vol. next, increase v30 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 waveform output 0.0 (v) voh vol 4) 13) increase the input signal(sg2) at input2 amplitude gradually, starting from 700mvp-p. measure the amplitude of the input signal when the output signal starts becoming distorted. measuring condition and procedure are the same as described in note7. measuring condition and procedure are the same as described in note7. measuring condition and procedure are the same as described in note7. measuring condition and procedure are the same as described in note7. measuring condition and procedure are the same as described in note7.
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 10 14) 17) 18) 15) 16) 19) 20) 21) 22) 23) 24) measure the dc voltage output at out(2,5,9). the measured value is called vb1. 25) 26) 27) first, sg3 to 1mhz is as input signal. control the main contrast in order that the amplitude of sine wave output is 2.0vp- p.control the brightness in order that the bottom of sine wave output is 1.0v.by the same way, measure the output amplitude when sg3 to 50mhz is as input signal.the measured value is called vout(2,5,9). frequency characteristics fc1(2,5,9) is calculated by the equation below: 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 to 180mhz is as input signal. relative characteristics d fc1 is calculated by the difference in the output between the channels. measuring condition and procedure are the same as described in note33,expect sg3 to change out sw from a to b .measuring condition and procedure are the same as described in note33 relative characteristics d fc3 is calculated by the difference in the output between the channels. measuring condition and procedure are the same as described in note14. measuring condition and procedure are the same as described in note14. measuring condition and procedure are the same as described in note14. measuring condition and procedure are the same as described in note14. measuring condition and procedure are the same as described in note14. vout vp-p fc1=20 log (db) output amplitude when inputed sg3(1mhz) : 4.0vp-p relative characteristics d fc4 is calculated by the difference in the output between the channels. relative characteristics d fc2 is calculated by the difference in the output between the channels.
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 11 input sg3 (50mhz) to pin42 only, and then measure the waveform amplitude output at out(2,5,9).the measured value is called vout(2,5,9).crosstalk chct1 is calculated by the equation below: vout(5,9) chct1= 20 log (db) vout(2) measuring condition and procedure are the same as described in note32,expect sg3 to 180mhz. input sg3 (50mhz) to pin37 only, and then measure the waveform amplitude output at out(2,5,9).the measured value is called vout(2,5,9).crosstalk chct2 is calculated by the equation below: vout(2,9) chct2= 20 log (db) vout(5) measuring condition and procedure are the same as described in note34,expect sg3 to 180mhz. input sg3 (50mhz) to pin32 only, and then measure the waveform amplitude output at out(2,5,9).the measured value is called vout(2,5,9).crosstalk chct3 is calculated by the equation below: vout(2,5) chct3= 20 log (db) vout(9) measuring condition and procedure are the same as described in note36,expect sg3 to 180mhz. 32) 34) 36) 37) 33) 35) input sg3 (50mhz) to pin42 only, set input sw of iic bus to 0 and then measure the waveform amplitude output at out(2).the measured value is called vout(2).on equal terms set input sw of iic bus to 1.and then measure the waveform amplitude output at out(2)'.crosstalk inct1 is calculated by the equation below: vout(2)' inct1= 20 log (db) vout(2) measuring condition and procedure are the same as described in note28,expect sg3 to 180mhz. 28) 29) similarly measure the waveform amplitude output at out(5) when signal input only pin37 and out(9)when signal input only pin32 and calculate crosstalk input sg3 (50mhz) to pin40 only, set input sw of iic bus to 1 and then measure the waveform amplitude output at out(2).the measured value is called vout(2).on equal terms set input sw of iic bus to 0.and then measure the waveform amplitude output at out(2)'.crosstalk inct2 is calculated by the equation below: vout(2)' inct2= 20 log (db) vout(2) measuring condition and procedure are the same as described in note30,expect sg3 to 180mhz. 30) 31) similarly measure the waveform amplitude output at out(5) when signal input only pin35 and out(9)when signal input only pin30 and calculate crosstalk.
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 12 control the contrast in order that the amplitude of output signal is 2.0vp-p. control the brightness in order that the black level of output signal is 1.0v. 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 = (tr2) - (tr1) (nsec) 2 2 100% 90% 0% 10% tr1 or tr2 tf1 or tf2 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 : 38) 40) turn down the sg4 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. decrease the sg4 pulse width gradually from 0.5us, monitoring the output. measure the sg4 pulse width (a point of 1.5v) when the output pedestal voltage turn decrease with unstable. 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: 42) 43) 44) 45) 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: relative pulse characteristics1 tr is calculated by the equation below: tr =vout(2) - vout(5) , vout(5) - vout(9) , vout(9) - vout(2) 39) relative pulse characteristics2 tf is calculated by the equation below: tf = vout(2) - vout(5) , vout(5) - vout(9) , vout(9) - vout(2) 41) tf = (tf2) - (tf1) (nsec) 2 2
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 13 measure the time needed for the output pulse to fall from 90% to 10% (otf) with an active prove. 47) measure the time needed for the output pulse to rise from 10% to 90% (otr) with an active prove. 46) measure the amplitude output at out(2,5,9). the measured value is called vout(2,5,9), and is treated as oaj1. oaj1 = vout(2) / vout(5), vout(5) / vout(9), vout(9) / vout(2) relative characteristics oaj1 is calculated by the equation below: 48) 49) measuring condition and procedure are the same as described in note48. measuring condition and procedure are the same as described in note49. 50) 51) measuring the amplitude output at out(2,5,9). the measured value is called o blk . relative osd blk characteristics o blk is calculated by the equation below: 56) 57) reduce the sg5 input level gradually, monitoring output.measure the sg5 level when the output reaches 0v. the measured value is called vthosd. confirm that output signal is being blanked by the sg5 at the time. monitoring to output signal, decreasing the level of sg5. measure the top level of sg6 when the blanking period is disappeared. the measured value is called vthblk. 58) 59) o blk = vout(2) / vout(5), vout(5) / vout(9), vout(9) / vout(2) 52) 53) 54) 55) supply 5v to v16,and then measure input current into pin16 supply 0v to v16,and then measure input current into pin16 60) 61) 62) 63) 64) 65) 66) 67) 68) 69) measuring condition and procedure are the same as described in note48. measuring condition and procedure are the same as described in note48. measuring condition and procedure are the same as described in note49. measuring condition and procedure are the same as described in note49. supply 5v to v19,and then measure input current into pin19 supply 0v to v19,and then measure input current into pin19 supply 5v to v20,and then measure input current into pin20 supply 0v to v20,and then measure input current into pin20 supply 5v to v(24,25,26)and then measure input current into pin(24,25,26) supply 0v to v(24,25,26)and then measure input current into pin(24,25,26) supply 5v to v27,and then measure input current into pin27 supply 0v to v27,and then measure input current into pin27
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative pulse with amplitude of 0.7vp-p (f=30khz). video width of 25us. (75%) sg1 sg2 sg3 sg4 sg5 8us 33us 0.5us 5us 0.7v p-p 0.7v p-p 5v ttl 5v ttl sine wave amplitude of 0.7vp-p. f=1mhz,50mhz,150mhz (variable) pulse width and amplitude are variable. amplitude is partially variable f h =30khz 14 video signal (all white) video signal (step wave) sine wave (for freq. char.) clamp pulse osd pulse sg no. input signal amplitude is partially variable
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 15
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative main contrast control characteristics input0.7vp-p 00h ffh main contrast control data sub contrast ffh osd adjust control characteristics 0 2 00h ffh 1 16 osd sw:0 osd sw:1 osd adjust control data 0 2 3 1 2.2v 00h 7fh sub contrast control characteristics input0.7vp-p 00h ffh main contrast control data main contrast ffh 0 2 3 1 2.2v 00h 7fh
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative notice of application 1.recommended pedestal voltage of ic output signal is 1v. 2.this ic has 2 input routes. when the 2 input signal input at different timing,clamp pulses which synchronize with selected signals is needed. in this case,it is necessary to change clamp pulses by the outside circuit. 16 17 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 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. application method
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 M52739FP 75 47uf scl sda clamp pulse in osd blk in r osd in g osd in b osd in 5v ttl 5v ttl 5v ttl 5v ttl r output g output b output 75 input1 3.3uf 75 75 75 75 5v input2 r input1 input2 g b input1 input2
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 1 2 5 9 output (r) output (g) output (b) 3 6 10 r vcc 2 g vcc 2 b vcc2 2 4 8 5 r gnd 2 g gnd 2 b gnd 2 13 14 analog gnd analog vcc 5 16 clamp pulse in more than 200nsec 0.5v gnd 2.5 5v 2.0v 21k 16 0.2ma 20ma 2.0v 1k 19 gnd gnd terminal description name peripheral circuit remark dc voltage (v) input at low impedance.
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 20 19 21 sda 3v 19 2k 50k sda for ii c (serial data line) vth=2.3v scl for ii c (serial clock line) vth=2.3v scl 3v 20 2k 50k 18 digital vcc 5v digital gnd 20 gnd 2.5v 24 2.5v 1k 24 25 26 b osd in g osd in r osd in input pulses 1.0v gnd 3.5 5v 1k name peripheral circuit remark dc voltage (v)
M52739FP mitsubishi iic bus controled 3channel video pre-amplifier for lcd display monitor. 21 mitsubishi tentative 29 30 35 40 b input 2 g input 2 r input 2 31 36 41 34 39 r vcc 1 g vcc 1 b vcc 1 5 b gnd 1 g gnd 1 r gnd 1 2.0v 0.3ma cp 2k 2k 32 37 42 b input 1 g input 1 r input 1 7 11 15 17 28 33 38 nc connect gnd for radiation of heat 30 21 12 gnd 50 0 (off) 3.5v(on) 2 3 2 2 27 osd blk in 2.5v 27 1k 1.5ma input pulses 1.0v gnd 3.5 5v connected to gnd if not used. 330 2.5v clamped to about 2.1 v due to clamp pulses from pin16. 2.1 v no. name peripheral circuit remark dc voltage (v) input at low impedance.
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