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i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 1 i 2 c bus controlled r/g/b video amplifier the S1D2500A01 is a very high frequency video ampli- fier system with i 2 c bus control used in monitors with high resolution up to1280 1024. it contains 3 matched r/g/b video amplifiers with osd interface and provides flexible interfacing to i 2 c bus controlled adjustment systems. functions ? r/g/b video amplifier ? osd interface ? i 2 c bus control ? contrast/osd contrast ? brightness control ? cut-off brightness control ? r/g/b sub contrast/cut-off control ? blank/clamp gate ? half tone ? brightness uniformity features ? 3 - channel r/g/b video amplifier, 150mhz @f-3db ? i 2 c bus control items - contrast control - sub contrast control for each channel - brightness control - osd contrast control - cut-off brightness control - cut-off control for each channel - switch registers for sblk and video half tone and cut-off int/ext ? sub contrast control range: -11db ? capable of 7.0vpp output swing range ? video/osd high speed switch 28-dip-600a ordering information device package operating temperature S1D2500A01-d0b0 28-dip-600a -20 c ? +75 c ? clamp gate with anti osd sagging ? b/u (brightness uniformity) interface ? video input clamp, brt clamp ? video & osd half tone function on osd picture (osd raster selection by hs1, 2: 4 colors) ? osd interface, osd blk ? abl ? ttl r/g/b osd inputs, 80mhz bandwidth ? contrast control range: -38db ? osd contrast control range: -38db
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 2 block diagram rct rclp rout rin vcc1 gin gnd1 b/u vi/osd_sw blk bout gnd3 bct bclp gclp vcc3 9 3 2 1 6 5 28 8 7 23 17 27 26 21 22 10 18 clp 15 25 20 gct sda abl 4 14 12 24 vcc2 bosd gosd rosd one (red) of three channels 19 13 gm1 sub contrast osd interface osd raster video half-tone half-tone osd contrast video contrast gm2 + video osd switch blk clp clp a1 a2 a3 interface & control blank gate b/u interface video/osd switch clamp gate video half-tone osd raster select + + clp blk cut off i 2 c bus control video-half tone switch d1(0ah) osd raster color d6:7(0ah) soft blank d0(0ah) contrast contral (00h) osd cont control (05h) r/g/b drive control (02/03/04h) brightness control (01h) r/g/b cut off control (07/08/09h) cut off ext offset d3:5 (0ah) cut off int/ext switch(0ah) cut off bright (06h) bin scl 11 gnd(l) 16 gout +
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 3 pin configuration table 1. pin configuration pin no symbol i/o configuration 1 rosd i red osd input 2 gosd i green osd input 3 bosd i blue osd input 4 vi/osd_sw i video or osd switch 5 rin i red video input 6 v cc1 - v cc (normal) 7 gnd1 - ground1 (normal) 8 gin i green video input 9 v cc2 - v cc (normal) rct rclp rout rin vcc1 gin gnd1 vi/osd_sw bout gnd3 bct bclp gclp vcc3 9 3 2 1 6 5 8 7 23 17 27 26 21 22 10 15 25 20 gct sda abl 4 14 12 24 vcc2 bosd gosd rosd 13 bin scl 11 gnd(l) 16 gout b/u blk 28 18 clp 19 s1d2500a
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 4 10 bin i blue video input 11 gnd (l) - ground2 (logic) 12 abl - automatic beam limit 13 scl i/o serial clock 14 sda i/o serial data 15 bct i blue cut off control 16 gct i green cut off control 17 rct i red cut off control 18 clp i clamp gate signal input 19 blk i blank gate signal input 20 bclp - blue clamp cap 21 bout o blue video output 22 gnd3 - ground3 (drive part) 23 v cc3 - v cc (drive part) 24 gout o green video output 25 gclp - green clamp cap 26 rout o red video output 27 rclp - red clamp cap 28 b/u i brightness uniformity table 1. pin configuration pin no symbol i/o configuration
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 5 pin description table 2. pin description pin no pin name schematic description 1 2 3 red osd input (rosd) green osd input (gosd) blue osd input (bosd) osd input signals are in ttl level and will be connected to ground when switching to video input 4 video/osd switch (vi/osd_sw) video/osd switch signal is ttl level pin4 = ?high?, osd input pin4 = ?low?, video input 5 8 10 red video input (rin) green video input (gin) blue video input (bin) max input video signal is 0.7 vpp 6 9 v cc1 v cc2 - supply voltage (except drive part) vcc pin 1 1.29/ 1.02v 1.16/ 0.90v vcc 6v pin 4 pin 5 vcc
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 6 7 11 gnd1 gnd2 (gnd (l) ) - ground (analogue) ground (logic) 15 16 17 blue cut-off (bct) green cut-off (gct) red cut-off (rct) cut-off control output 18 clamp gate input (clp) video amp active when clamp gate signal is in low ttl level. clamp gate min. pulse width : 0.2us, at fh: 50khz 19 blank gate input (blk) video amp blanks video signal when blank gate signal is in low ttl level. table 2. pin description (continued) pin no pin name schematic description pin 17 0~180ua 0~540ua 80ua 160ua 320ua cut-off cut-off brt cut-off offset 5.1v pin 18 vcc pin 19 7v vcc
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 7 26 24 21 red video output (rout) green video output (gout) blue video output (bout) video signal output 20 25 27 blue clamp cap (bclp) green clamp cap (gclp) red clamp cap (rclp) brightness control activated by charging and discharging of the external cap. (0.1 m f) (during low clamp gate) 22 gnd3 - ground (drive part) 23 v cc3 - supply voltage (drive part) 13 14 scl sda serial clock input port of i 2 c bus serial data input port of i 2 c bus table 2. pin description (continued) pin no pin name schematic description vcc pin 26 pin 27 pin 13 3.22v 54ua 27ua
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 8 28 b/u input (b/u) parabola input via ac coupling cap 12 abl input (abl) automatic beam limitation input (control range: 0.5 ? 4.5v) table 2. pin description (continued) pin no pin name schematic description vcc 4.6v 100ua pin 28 vcc pin 12
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 9 absolute maximum rating (ta = 25 c) (1) thermal & esd parameter electrical characteristics dc electrical characteristics ta = 25 c, v cc1 = v cc2 = v cc3 = 12v; v 4 = 0v; unless otherwise stated table 3. absolute maximum rating no item symbol value unit min typ max 1 maximum supply voltage v cc 1/2/3/v dd - - 13.2 v 2 operating temperature (2) topr -20 - 75 c 3 storage temperature tstg -65 - 150 c 4 operating supply voltage vccop 11.4 12.0 12.6 v (3) 5 power dissipation p d - - 2.0 w table 4. thermal & esd parameter no item symbol value unit min typ max 1 thermal resistance (junction-ambient) q ja - 46 - c/w 2 junction temperature tj - 150 - c 3 human body mode (c = 100p, r = 1.5k) hbm 2 - - kv 4 machine model (c = 200p, r = 0) mm 300 - - v 5 charge device model cdm 800 - - v table 5. dc electrical characteristics parameter symbol min typ max unit supply current i cc (4) 85 110 135 ma clamp gate low input voltage v 151 0.8 1.5 3.0 v clamp gate high input voltage v 15h 0.8 1.5 2.0 v
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 10 clamp gate low input current i 15l -5.0 -2.0 - m a clamp gate high input current i 15h - 0.01 1.0 m a blank gate low input voltage v 16l 0.8 1.5 3.0 v blank gate high input voltage v 16h 0.8 1.5 2.0 v blank gate low input current i 16l -5.0 -2.0 - m a blank gate high input current i 16h - 0.01 1.0 m a video input bias voltage vbias 1.6 1.9 2.2 v output clamp cap charge current iclamp+ 0.45 0.75 1.10 ma output clamp cap discharge current iclamp- -1.10 -0.75 -0.45 ma video output low voltage v ol - 100 200 mv video output high voltage v oh 6.2 7.5 9.0 v video black level output voltage (por) v obl 1.9 2.2 2.5 v video d black level output voltage d vo bl (5) -0.3 - 0.3 v video output blanked voltage v ob - 0.1 0.2 v contrast/drive control input current losd, ldirve lcon - 0.25 1 ua spot killer voltage vspot 9.2 10.4 11.2 v table 5. dc electrical characteristics (continued) parameter symbol min typ max unit
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 11 ac electrical characteristics ta = 25 c, v cc1 = v cc2 = v cc3 = 12v; v 4 = 0v. vin = 0.56vpp manually adjust video output pins 21, 24 and 26 to 4v dc for the ac test (11) unless otherwise stated (12) osd electrical characteristics ta = 25 c, v cc1 = v cc2 = v cc3 = 12v; v19 = 4v; v12 = v28 = 0v; v1 = v2 = v3 = 4v; v 4 = 4v; unless otherwise stated table 6. ac electrical characteristics parameter symbol min typ max unit video amplifier gain av max 15.5 17.5 19.5 db contrast attenuation 1 avc1 -4.5 -6.0 -7.5 db contrast attenuation 2 avc2 - -38 -35 db drive attenuation1 avd1 -3 -4 -5 db drive attenuation 2 avd2 -11 -8 -5 db absolute gain match a v match (6) -1 - 1 db gain change between amplifiers a v track (7) -1 - 1 db video amplifier distortion thd - 1 5 % video amp bandwidth (7,8) f (-3db) 130 150 - mhz video output rise time (7) tr (video) - 2.3 2.8 ns video output fall time (7) tf (video) - 3.2 4.0 ns video amplifier 10khz isolation viso_10k (9) - -65 -45 db video amplifier 10mhz isolation viso_10m (7,9) - -50 -35 db blank output rise time (7) tr (blank) - 6 15 ns blank output fall time (7) tf (blank) - 10 30 ns end of blanking propagation delay tr-prop (blank) - 23 50 ns start of blanking propagation delay tf-prop (blank) - 20 45 ns table 7. osd electrical characteristics parameter symbol min typ max unit osd input low input voltage v osdi 0.4 1.3 3.0 v
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 12 osd input high input voltage v osdh 0.4 0.8 1.2 v osd select low input voltage v 4i 0.8 1.6 3.0 v osd select high input voltage v 4h 0.8 1.6 2.0 v osd select low input current i 4i -10 -5 - m a osd select high input current i 4h 70 100 130 m a osd output black level v blv-osd - 0.1 0.2 v osd output voltage v osd 2.6 3.6 4.6 v pp osd output vpp attenuation v osd_att 30 50 70 % output match between channels v osd -7 - 7 % video to osd switch time (7) t r (osd s) - 4 10 ns osd to video switch time (7) t f (osd s) - 11 20 ns video to osd propagation delay t r -pr (osd s) - 11 25 ns osd to video propagation delay t f -pr (osd s) - 12 25 ns osd rising time tr (osd) - 4 8 ns osd falling time tf (osd) - 5 10 ns osd rising propagation delay tr_pr (osd) - 7 15 ns osd falling propagation delay tf_pr (osd) - 9 20 ns video/osd 10khz isolation iiso10k (osd) - -60 -40 db video/osd 10mhz isolation iiso10m (osd) - -50 -35 db table 7. osd electrical characteristics (continued) parameter symbol min typ max unit
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 13 i 2 c bus recommended operating conditions i 2 c bus timing requirement table 8. i 2 c bus recommended operating conditions parameter symbol min typ max unit input high level voltage vinh 3.0 - - v input low level voltage vinl - - 1.5 v scl clock frequency f scl - - 200 khz hold time before a new transmission can start t buf 1.3 - - us hold time for start condition t hds 0.6 - - us set-up time for stop conditions t sup 0.6 - - us the low period of scl t low 1.3 - - us the high period of scl t high 0.6 - - us hold time data t hdat 0.3 - - us set-up time data t supdat 0.25 - - us rise time of scl t r - - 1.0 us fall time of scl t f - - 3.0 us t buf sda scl t hds t supdat t high t sup t hdat t low
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 14 notes: 1. absolute maximum rating indicates the limit beyond which damage to the device may occur. 2. operating ratings indicate conditions for which the device is functional but do not guarantee specific performance limits. for guaranteed specifications and test conditions, see the electrical characteristics. the guaranteed specifications appl y only for the test conditions listed. some performance characteristics may degrade when the device is not operated under the listed test conditions. 3. v cc supply pins 6, 9, and 23 must be externally wired together to prevent internal damage during v cc power on/off cycles. 4. the supply current specified is the quiescent current for v cc1 /v cc2 and v cc3 with rl = . the supply current for v cc3 (pin 23) also depends on the output load. 5. output voltage is dependent on load resistor. test circuit uses rl = 390 w 6. measure gain difference between any two amplifiers vin = 560mvpp. 7. when measuring video amplifier bandwidth or pulse rise and fall times, a double sided full ground plane printed circuit board without socket is recommended. video amplifier 10mhz isolation test also requires this printed circuit board. the reason for a double sided full ground plane pcb is that large measurement variations occur in single sided pcbs. 8. adjust input frequency from 10mhz (av max reference level) to the-3db frequency (f -3db). 9. measure output levels of the other two undriven amplifiers relative to the driven amplifier to determine channel separation. terminate the undriven amplifier inputs to simulate generator loading. repeat test at fin = 10mhz for iso_10mhz. 10. a minimum pulse width of 200 ns is guaranteed for a horizontal line of 15khz. this limit is guaranteed by design. if a lower line rate is used a longer clamp pulse may be required. 11. during the ac test the 4v dc level is the center voltage of the ac output signal. for example. if the output is 4vpp the signal will swing between 2v dc and 6v dc. 12. these parameters are not tested on each product which is controlled by an internal qualification procedure.
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 15 functional description contrast (osd contrast adjustment) (8-bits) the contrast adjustment is made by controlling simultaneously the gain of three internal variable gain amplifiers through the i 2 c bus interface. the contrast adjustment allows you to cover a typical range of 38db. brightness adjustment (8-bits) the brightness adjustment controls to add the same black level (pedestal) to the 3-channel/r/g/b signals after contrast amplifier by i 2 c bus. cut-off brightness adjustments (8-bits) the cut-off brightness adjustment is made by simultaneously controlling the external cut-off current. cut-off (sub contrast) adjustment (8-bits 3) these adjustments are used to adjust the white balance, and the gain of each channel is controlled by i 2 c bus. the sub contrast adjustment allows you to cover a typical range of 11db. osd inputs the S1D2500A01 includes all the circuitry necessary to mix osd signals into the r/g/b video signal. you need 4 pins for this function. (r/g/b osd, osd blanking) serial interface the 2-wires serial interface is an i 2 c bus interface. the slave address of the S1D2500A01 is dc (hexadecimal) data transfer all bytes are sent msb (most significant bit) bit first and the write data transfer is closed by a stop. the mcu can write data into the S1D2500A01 registers. to do that, after a start, the mcu must send: - the i 2 c address slave byte with a low level for r/w bit (bit1) - the byte of the interinal register address where the mcu wants to write data (sub address) - the data - stop bit8 bit7 bit6 bit5 bit4 bit3 bit2 bit1 1 1 0 1 1 1 0 0 (w)
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 16 i 2 c bus write operation register description register sub address (slave address: dch) ht: video & osd half tone ctrl switch (1: on, 0: off) hs2/hs1: osd raster color switch for video half tone (ht = 1) ct: cut-off control int/ext (0:int/1: ext) select switch (dc/ac mode) cs1/cs2/cs3/: 80/160/320ua cut-off ctrl ext offset current switch (ct = 1) sblk: soft blanking switch (1: on, 0: off) sub address (hex) register names dac bits int. value (hex) 00 contrast control 8 bits 80 01 brightness control (3-ch) 8 bits 80 02 sub contrast control (r) 8 bits 80 03 sub contrast control (g) 8 bits 80 04 sub contrast control (b) 8 bits 80 05 osd contrast control 8 bits 80 06 cut-off brightness control 8 bits 80 07 cut-off control (r) 8 bits 80 08 cut-off control (g) 8 bits 80 09 cut-off control (b) 8 bits 80 0a hs2 l hs1 l cs3 l cs2 l cs1 l ct l ht l sblk 20 hs2 hs1 osdr osdg osdb half tone 0 0 1 1 0 1 0 1 0 0 0 0 0 1 0 1 0 0 1 1 black green blue cyan msb lsb scl sda transter start slave address ack register address ack data byte ack stop
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 17 contrast register (sub adrs: 00h) (vin = 0.56vpp, bright: 40h, subcont: ffh) brightness register (3-ch) (sub adrs: 01h) (cont: 40h, subcont: ffh) sub contrast register (r/g/b-ch) (sub adrs: 02/03/04h) (vin=0.56vpp, bright: 40h, cont: ffh) osd contrast register (sub adrs: 05h) (vosd = ttl, bright: 40h, subcont: ffh) hex b7 b6 b5 b4 b3 b2 b1 b0 contrast (vpp) gain (db) int. value (hex) 00 0 0 0 0 0 0 0 0 0 -30.0 80 1 0 0 0 0 0 0 0 1.12 11.5 o ff 1 1 1 1 1 1 1 1 4.2 17.5 increment/bit 0.0164 hex b7 b6 b5 b4 b3 b2 b1 b0 brightness (vpp) int. value (hex) 00 0 0 0 0 0 0 0 0 0 80 1 0 0 0 0 0 0 0 2 o ff 1 1 1 1 1 1 1 1 4 increment/bit 0.0156 hex b7 b6 b5 b4 b3 b2 b1 b0 sub contrast (vpp) gain (db) int. value (hex) 00 0 0 0 0 0 0 0 0 1.33 7.5 80 1 0 0 0 0 0 0 0 2.65 13.5 o ff 1 1 1 1 1 1 1 1 4.2 17.5 increment/bit 0.0123 hex b7 b6 b5 b4 b3 b2 b1 b0 osd contrast (vpp) gain (db) int. value (hex) 00 0 0 0 0 0 0 0 0 0 - 80 1 0 0 0 0 0 0 0 3.7 - o ff 1 1 1 1 1 1 1 1 3.5 - increment/bit 0.0289
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 18 cut-off brightness register (3-ch) (sub adrs: 06h) cut-off register (r/g/b-ch) (sub adrs: 07/08/09h) (cont = 80h, subcont: ffh, int: ct=0, ext: ct=1) hex b7 b6 b5 b4 b3 b2 b1 b0 cut-off brightness ( m a) int. value (hex) 00 0 0 0 0 0 0 0 0 0 80 1 0 0 0 0 0 0 0 75 o ff 1 1 1 1 1 1 1 1 150 increment/bit 0.588 hex b7 b6 b5 b4 b3 b2 b1 b0 cut-off int (v) cut-off ext( m a) int. value (hex) 00 0 0 0 0 0 0 0 0 -0.5 0 80 1 0 0 0 0 0 0 0 0 250 o ff 1 1 1 1 1 1 1 1 0.5 500 increment/bit 3.9mv 1.96
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 19 application board circuit + 10uf 33 0.1uf + 100uf 75 5v 1 2 3 4 0.1uf 390 b/u 28 rout 26 gclp 25 gout 24 gnd3 22 bout 21 bclp 20 blk 19 vcc3 23 rct 17 bct 15 clp 18 gct 16 scl 13 rosd 1 gosd 2 bosd 3 vi/osd_sw 4 rin 5 vcc1 6 gnd1 7 gin 8 vcc2 9 bin 10 gnd(l) 11 abl 12 sda 14 rclp 27 ka2500 0.1uf + 100uf 100 100 sclk scl sda bav21 12v 75k 75v 2.2k 5v 2k rosd in 33 gosd in 33 bosd in 33 vi/osd sw in 33 red in + 10uf 75 33 green in + 10uf 75 33 blue in 0.1uf + 100uf 0.1uf + 47uf 100 abl in 100 100 2k 2 3 4 5 6 7 14 13 12 11 10 9 8 1 74hct125 sdat ack scl sda + 100uf 0.1uf vcc=12v vin 1 gnd 2 vout 3 ka78t05 5v bu in 0.1uf red out 390 0.1uf green out 390 blue out 0.1uf 100 clp in blk in ksp92 ksp42 75k 100 bav21 12v 75k 75v 2.2k ksp92 ksp42 75k 100 bav21 12v 75k 75v 2.2k ksp92 ksp42 75k 100 12v 5v + 1uf 100v + 1uf 100v + 1uf 100v + 0.47uf 50v + 0.47uf 50v + 0.47uf 50v s1d2500a
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 20 application circuit + 10uf + 100uf 0.1uf 75 + 100uf 0.1uf 0.1uf + 100uf 390 33 r in 100 100 0.1uf + 10uf 75 33 + 47uf 0.1uf 100 100 100 g in b in abl scl sda clp blk 12v vcc gnd gout gnd rout rin vee gin bin gnd bout 390 390 0.1uf 0.1uf 0.1uf + 100uf 27 0.1uf + 100uf 0.1uf 27 0.1uf 27 0.1uf 75k 2.2k ksp92 ksp42 75k + 1uf 100v + 0.47uf 50v bav21 75k 2.2k ksp92 ksp42 75k + 1uf 100v + 0.47uf 50v bav21 75k 2.2k ksp92 ksp42 75k + 1uf 100v + 0.47uf 50v to cathode 100 100 b out g out r out bav21 b/u 28 rout 26 gclp 25 gout 24 gnd3 22 bout 21 bclp 20 blk 19 vcc3 23 rct 17 bct 15 clp 18 gct 16 scl 13 rosd 1 gosd 2 bosd 3 vi/osd_sw 4 rin 5 vcc1 6 gnd1 7 gin 8 vcc2 9 bin 10 gnd(l) 11 abl 12 sda 14 rclp 27 ka2500 33 33 33 33 r osd g osd b osd osd sw + 10uf 75 33 0.1uf bu 100 vcc=12v 75v 75v 75v 75v 12v 12v 12v s1d2500a
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 21 characteristics curve brightness (01h) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [v] 18mv/bit cut-off (07/08/09h): 80h cut-off brightness control (06h) 0 20 40 60 80 100 120 140 160 180 200 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data iout [ua] sw (0ah) : 04 0.7ua/bit
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 22 int. cut-off control (07/08/09h) 1.5 1.7 1.9 2.1 2.3 2.5 2.7 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [v] 4.6mv/bit bright (01h): 80h ext. cut-off control (07/08/09h) 0 100 200 300 400 500 600 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data iout [ua] 2.14ua/bit cut-off brt (06h): 00h
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 23 vin = 560mvpp contrast control (00h) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [vpp] 18.36mvpp/bit contrast control (00h) -50 -40 -30 -20 -10 0 10 20 30 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [db] drive (02/03/04h): ff
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 24 vin = 560mvpp, contrast (00h): ffh drive control (02/03/04h) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [vpp] 12mvpp/bit drive control (02/03/04h) 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [vpp] contrast (00h): ffh
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 25 drive (02/03/04h): ffh osd contrast control (05h) 0 1 2 3 4 5 6 7 8 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [vpp] 28.6mv/bit osd contrast control (05h) -50 -40 -30 -20 -10 0 10 20 30 0 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0 data vout [db] drive (02/03/04h): ffh
S1D2500A01 i 2 c bus controlled r/g/b video amplifier for monitors 26 f-3db (video preamp) -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 1 25 50 75 100 125 150 175 200 225 250 275 300 325 350 f[mhz] vout [db] -12 -10 -8 -6 -4 -2 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 vabl [v] vout [db]
i 2 c bus controlled r/g/b video amplifier for monitors S1D2500A01 27 bu characteristic 0 5 10 15 20 25 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 vbu [vpp] modulation rat [%]

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