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  this document contains information on a product under development. motorola motorola jan . 2 002 reserves the right to change or discontinue this product without notice. rev 0 p age 1 MCVVQ111AFB virtue video driver simplified system diagram timing logic sync separator pll band-gap reference + 2.7-5.5 v olt video luma source osd source cyberdisplay 320 lcd display panel video amplifier 11 volt product preview virtuovue monochrome video display d river the MCVVQ111AFB v irtuovue monochrome video display i s designed to accept a standard monochrome video signal (525 or 625 lines), and convert it for display on the cyberdisplay320 lcd display panel. the MCVVQ111AFB p rovides all necessary power supply voltages to the display panel by means of a voltage regulator. t he input video signal is converted to appropriate differential video signals required by the lcd display panel. a separate osd input is provided. an on-board sync separator, pll, and logic control section generate the appropriate horizontal and vertical timing signals for the lcd panel. horizontal and vertical sync outputs are provided. the MCVVQ111AFB i s designed to operate under two input voltages: one is from 2.7 to 5.5 volts ,and the other is 11 volts, a sleep mode can be set to reduce power consumption. ? support 525 and 625 line monochrome systems ? separate input pin for osd signals (osd overlay). ? integrated voltage regulator p rovides all necessary voltages for the lcd display panel ? internal sync separator, pll, and logic provide all necessary timing s ignals to the lcd display panel. ? control pins to adjust video black level, gain. ? gamma bias pin to adjust the video output characteristics ? s u ppl ies r equired: 2.7 to 5.5 volts dc , 11 volts dc ? sleep mode for power conservation. ? operating ambient temperature range: -20 to 70 o c. ? surface mount package. MCVVQ111AFB virtuovue monochrome video display fb suffix plastic package case 932-02 (lqfp-48) package r q ja =88 o c/w (typ) ordering information device o perating t emperature range package MCVVQ111AFB -20 o c - 70 o c lqfp-48
motorola jan. 2002 rev 0 p age 2 MCVVQ111AFB sleep agnd 525/625 band gap refernce ok pll pll filter 0.47uf vbg timing generator 10 nf vsync hsync sync separator h v syfltr 1uf 384fh 0.1u 75 clamp dc restore osd level detect agnd blkg white 3 4 8 gain blk lvl. 3 0 gamma bias 3 6 blk level & gain adj. 31 video amps 27 28 29 14 vidlc vidhc 1nf vidh vidl 48 33uh 10uf 0.1uf 4 4 a n a l o g v b a t v b a t 4 3 4 2 pdr 3 9 v d d h 4 0 3 7 voltage regulator 3 2 3 8 20 19 18 vee 11 22 21 26 25 24 vdd vcom vref vss reno rene hck hpl 23 17 16 15 13 hodl vpl vck dgnd pdr 100n 100n 2.7 to 5.5 v cyberdisplay320 lcd panel figure 1 block diagram r ef gnd osd in 100n 1 33 4 10 35 7 46 45 47 9 5 6 3 12 video in vhio sel 2.0k 2 hodl sel q d c o l u m n i n v e r s i o n p i x e l i n v e r s i o n h o d l _ i n v _ f r e q s e l _ p d r 11v v d d c a p 41 test mode 0.1u 10u
motorola jan. 2002 rev 0 p age 3 MCVVQ111AFB devices should not be operated at these limits. the ?recommended operating conditions? provides for actual device operation. all limits are not necessarily functional concurrently. maximum ratings parameter symbol value unit power supply voltage 1 vbat -0.5,+6.0 vdc power supply voltage 2 vddh 13 vdc maximum junction temperature t j +150 o c storage temperature tstg -65,+150 o c package thermal conductivity r q ja 88(typ) o c/w recommended operating conditions parameter symbol min typ max unit power supply voltage vbat 2.7 - 5.5 vdc video signal input level (composite video - luma) vvid - 1.0 - vp-p osd input levels vosd 0 - vbat volt logic input levels (pins 1, 2, 10,47 ,37,42 ) vin 0 - vbat volt gain control (pin 8) vgc 1.25 - 2. 5 volt black level control(pin 30) vbl 2.0 - 3.0 volt gamma bias (pin 36) vga 0.5 - 1.5 volt external vddh supply vddh 10.7 11 11.3 volt operating ambient temperature ta -20 - 70 o c electrical characteristics ( all parameters are specified at ta=25 o c, pin 1 = high unless noted ) fh stand for line frequency. fh = 15750hz in 525/60 system and fh = 15625hz in 625/50 system parameter min typ max unit power supplies (to be updated) supply current into vbat(pin 43 and pin 44 ) p ins 13-27 open, pin 1 = high, vbat=5 volt - 10 15.5 ma supply current into vbat(pin 43 and pin 44), sleep mode pins 13-27 open, pin 1 = low, vbat=3.3volts - 100 - ua supply current into vdd h - 9 18 ma power consumption , v bat=5.0v vddh= 11.0v - 149 275.5 mw d isplay output voltages (voltages referenced to vss) vdd (source 1.4ma) 8.5 +9.0 9.5 volt vee (sink 1ma) 1.9 +2.0 2.1 volt vcom (source 2ma) 5.55 +5.8 6.15 volt
motorola jan. 2002 rev 0 p age 4 MCVVQ111AFB vref (source 10ua) - vbat/2 - volt vbg bandgap voltage(pin 33) 1.185 1.25 1.3 volt pll / sync separator pixel clock oscillator center frequency(pin 5 = open) - 6.0 - mhz pll lock range (horizontal frequency) 14.175 17.1875 khz osd input black threshold - 0.75 1.00 volt white threshold - 2.25 2.70 volt logic input (pin: 1, 2, 10, 47) maximum logic low input level - - 0.33 xv bat volt minimum logic high input level 0.66 xv bat - - volt input impedance 600k to agnd ohm hsync, vsync input/output input impedance (pin 47 connect to vbat) - 47k to vbat - ohm input threshold (pin 47 connect to vbat, -ve sync input) 1.25 volt equivalent output impedance (pin 47 connect to gnd) - 90 - ohm timing logic output (pin: 13, 15, 16, 17, 23, 24, 25, 26) equivalent output impedance - 90 - ohm external capacitive loading for logic timing signals 20 pf logic output level high vbat -0.5 - - volt logic output level low - - 0.45 volt analog video driver (vidl, vidh) external capacitive loading for vidl & vidh 85 pf video amplifier characteristi c video output amplitude (pin36 open, pin30 connect to pin19, pin8 set to 2. 25 v, measured from black level to output peak 80pf capacitive loading. 3.1 v gain control range (pin36 open, pin30 connect to pin19, pin8 set between 1.25 to 2. 5 , output attenuation with respect to maximum output amplitude) -7 db gamma control range (pin8 set to 1.5v, pin30 connect to pin19, pin36 set to 0.5 - minimum gamma, with 100mv video content or 10% ire video input level, measure vidl output amplitude with respect to black level, external vddh at 11v) 0.2 - 0.4 volt gamma control range (pin8 set to 1.5v, pin30 connect to pin19, pin36 set to 1.5 - maximum gamma, with 100mv video content or 10% ire video input level, measure vidl output amplitude with respect to black level, external vddh at 11v) 1.3 - 1.7 volt black level control range (pin30 set at 2 volt measure vidl output black level voltage. 1.9 - 2.1 volt electrical characteristics ( all parameters are specified at ta=25 o c, pin 1 = high unless noted ) fh stand for line frequency. fh = 15750hz in 525/60 system and fh = 15625hz in 625/50 system parameter min typ max unit
motorola jan. 2002 rev 0 p age 5 MCVVQ111AFB note: gain, gamma-bias & black level are interrelated control, control range may be different at different combination of those setting. timing characteristics (ta=+25 o c) note: MCVVQ111AFB i s design to work in conjunction with cyberdisplay 320 monochrome display, all timing output are expected to fulfill the minimum timing requirement stated at cyberdisplay 320 monochrome specification table 2-5, revision ?2/13, 1998 ?????? ? when operate under standard video mode ntsc/pal . black level control range (pin30 set at 3 volt measure vidl output black level voltage. 2.9 - 3.1 volt display panel timing (fh=15750hz, 525/60 system, figure 8-9) parameter symbol min typ max unit vpl start at t1 - line 19 - - vpl setup time (vpl start to vck start) t2 140 496.5 - ns hpl setup time 40 - - ns vck low time t3 - 496.5 - ns hpl low time t4 - 165.5 - ns hck cycle time t5 - 165.5 - ns hpl end to rene start time t6 - 827.5 - ns rene low time t7 - 54.95 - us hpl end to reno start time t8 - 827.5 - ns reno low time t9 - 54.95 - us display panel timing (fh=15625hz, 625/50 system, figure 8-9) parameter symbol min typ max unit vpl starts at t1 - line 23 - - vpl setup time (vpl start to vck start) t2 140 500 - ns hpl setup time 40 - - ns vck low time t3 - 500 - ns hpl low time t4 - 166.67 - ns hck cycle time t5 - 166.67 - ns hpl end to rene start time t6 - 833.35 - ns rene low time t7 - 55.33 - us hpl end to reno start time t8 - 833.35 - ns reno low time t9 - 55.33 - us system timing parameter min typ max unit pdr rising edge after sleep rising edge - 333(ntsc) 400(pal) - ms electrical characteristics ( all parameters are specified at ta=25 o c, pin 1 = high unless noted ) fh stand for line frequency. fh = 15750hz in 525/60 system and fh = 15625hz in 625/50 system parameter min typ max unit
motorola jan. 2002 rev 0 p age 6 MCVVQ111AFB pdr falling edge after sleep falling edge - 10 - ns pin description pin no pin name description 1 sleep logic level input. a logic low sets the ic into the sleep mode. internal 500k pull- down provided. 2 hodl select used for hodl selection. logic 1: column i nversion output on hodl for abnormal video (such as cue/review/pause mode) logic 0: pixel inversion output on hodl for normal video also refer the description of pin 37 3 osd in input for the osd signals. see text for required signal levels. 4,12 agnd ground for the pll section. 5 video input input for standard level monochrome video,525 or 625 lines. source impedance must be less than 500. 6 clamp clamp capacitor, to ground, for the video black level clamp. 7 pll filter filter pin for the internal horizontal pll. 8 gain dc control for the gain of the video signal path. adjustment range is +/- 3. 5db. 9 syfltr filter pin for the sync separator. capacitor to ground is required. 10 525/625 set low if the input video is a 525 line system (ntsc). set high for 625 line systems. internal 500k pull-down provided. 11 dgnd ground for the digital sections and signals. 13 pdr power down reset output to the lcd panel. active low. 14 vidh upper video drive signal to the lcd panel. 15 vck vck control signal t o the lcd panel. 16 vpl vertical start pulse output to the lcd panel. 17 hodl inv ersion control output to the lcd panel. 18 vcom internally generated supply for the lcd panel. nominally +5.8 volts. 19 vee internally generated supply for the lcd panel. nominally +2.0 volts. 20 vdd internally generated supply for the lcd panel. nominally +9.0 volts. 21 vss reference ground for the lcd panel. 22 vref internally generated supply for the lcd panel. nominally vbat/2. 23 hpl horizontal start pulse output to the lcd panel. 24 hck horizontal clock output to the lcd panel. 25 rene even row enable output to the lcd panel. 26 reno odd row enable output to the lcd panel. 27 vidl lower video drive signal to the lcd panel. 28 vidlc connect to vidhc through a compensation capacitor. 29 vidhc connect to vidlc through a compensation capacitor, 30 black level dc control to adjust the video output black level for normal video and osd signals. 31 n/c not connected system timing parameter min typ max unit
motorola jan. 2002 rev 0 p age 7 MCVVQ111AFB 32 vdd cap connect the decoupling capacitor (0.1uf) for vdd 33 vbg output of the bandgap reference. external capacitor may be required. 34 n/c not connected 35 ok for test only. output indicating the video horizontal freq is within the pll pull-in range. if pll is not locked, ok will be set to high. 36 gamma-bias adjust the characteristics of the video output. 37 hodl_inv_freq select the switching frequency of hodl polarity to either vf/4 (when the pin is set to high) or vf/2(when the pin is set to low. it is the default state). vf is the vertical fre- quency. this setting applies to both pixel inversion mode and column inversion mode. refer the description of hodl section for the switching frequencies under ntsc and pal modes. 38 n/c not connected 39 n/c not connected 40 vddh power supply input. voltage range is from 10.7v to 11.3v 41 test mode used in test mode. it must be connected to ground during normal operation. 42 sel_pdr during normal operation, select either scheme 1 or scheme 2. logic high: scheme 1 is selected. when pdr is asserted during vblanking, no rene/ reno pulses will be generated. logic low: scheme 2 is selected. when pdr is asserted during vblanking, 3 rene/ reno pulses will be generated. the default state is logic low. 43 vbat power supply input. voltage range is +2.7 to +5.5 volts, and must be within 0.5 volt of pin 44. 44 analog vbat power supply input. voltage range is +2.7 to +5.5 volts, and must be within 0.5 volt of pin 43. this pin powers the pll,and other noise sensitive sections. 45 hsync h sync output of the sync separator, or an h sync input from an external source. internal 50k pull-up provided. 46 vsync v sync output of the sync separator, or a v sync input from an external source. inter- nal 50k pull-up provided. 47 vh io sel input. when low, pins 45 & 46 are outputs. when high, pins 45 & 46 are inputs. 48 ref gnd. ground for th e analog sections and signals except for pll section pin description pin no pin name description
motorola jan. 2002 rev 0 p age 8 MCVVQ111AFB figure 2- black level adjustment black level set voltage @pin 30(volts dc) b l a c k l e v e l @ v i d l , v i d h ( v o l t s d c ) 2.0 3.0 0 0 2.0 6.0 4.0 8.0 10.0 vidh vidl figure 3 - gain adjustment (for 1 volt video input, gamma bias was adjusted for a linear characteristic) g a i n , v i d e o o u t p u t a t v i d l & v i d h v p - p gain control voltage at pin 8 (volt dc)
motorola jan. 2002 rev 0 p age 9 MCVVQ111AFB video input @pin 5 hsync out @pin 45 black lvl clamp (internal) figure 4 - horizontal sync timing 850ns 1/2 fh 4us 2us c l figure 5 - vsync output video input @pin 5 vsync out @pin 46 video input @pin 5 @pin 46 field 2 field 1 49 lines 3.1 msec field 1 field 2 49 lines 3.1 msec line 1 vsync out
motorola jan. 2002 rev 0 p age 10 MCVVQ111AFB bandgap source r r r r 0.3v 2.0v vddh(11v) to lcd display panel vdd(9v) vcom(5.8v) vee(2v) vref vss (vbat/2) 20 - + 18 - + 19 vddh vddh 40 22 43 21 figure 6 - lcd panel supply voltages vbat (2.7~5.5) 9.0v r figure 7 - video display vs. video input ta tc tb video input video output video input 525/60 625/50 1/fh 63.5us 64us hck 6.05 mhz 6 mhz ta 0.367us 0.364us tb 53.27us 52.73us tc 0.367us 0.364us % of video displayed 101.4% 101.4% video content video display
motorola jan. 2002 rev 0 p age 11 MCVVQ111AFB figure 8 - lcd panel vertical & horizontal timing vpl pin 16 vck pin 15 hpl pin 23 hodl pin 17 hck pin 24 cycle time = 1 field cycle time = 2/fh cycle time = 1/fh t2 t3 t4 t5 c l v sync pin 46 t 1 figure 9 - lcd panel active video timing t6 t7 t8 t9 vck pin 15 hpl pin 23 rene pin 25 reno pin 26
motorola jan. 2002 rev 0 p age 12 MCVVQ111AFB figure 1 0 - lcd timing signals vs. fields (ntsc) 19 line 25 8 line 282 field 1 field 2 video input @pin 5 vpl vck hpl rene reno line figure 1 1 - osd input signal waveform osd input signal osd threshold black level white level white threshold gnd figure 1 2 - osd display example row 1 row 2 row 3 osd input for row 1 osd input for row 2 osd input for row 3 gnd gnd gnd
motorola jan. 2002 rev 0 p age 13 MCVVQ111AFB functional description (refer to figure 1) the MCVVQ111AFB i s designed to receive a standard monochrome video signal (525 or 625 lines) at pin 5, and drive the cyberdisplay320 lcd display panel . the ic contains the following sections: pll - the pll will normally lock to the horizontal frequency of the incoming video (via the sync separator) so as to synchronize the timing generator w ith the video amplifiers. the component values shown at pin 7 are suitable for both 525/60 and 625/50 signals. the pll output frequency is 384xfh, or 6.05mhz for a standard 525 line/60hz signal (ntsc), and 6mhz for a standard 625 line/50 hz signal (pal/secam). t he timing generator provides all the timing signals to the lcd panel. pins 45 and 46 (hsync and vsync) can be configured as inputs or outputs, controlled by pin 47(vhio sel). when pin 47 is low, pins 45 and 46 are outputs. hsync out is a square wave at the horizontal frequency as shown in figure 4. vsync out is an active high pulse as shown in figure 5. when pin 47 is high, pins 45 and 46 are inputs, require negative sync input pulses. this permits synchronizing the MCVVQ111AFB t o an external signal. when there is no video present, the pll will continue to provide horizontal and vertical timing signals to the timing generator so as to keep the lcd display active. the pll frequency will decrease slightly in the absence of video, but will lock up once a valid video signal is applied. voltage regulator - the section will provide all the necessary regulated supply voltages to the lcd display panel from a n external 11v s upply (vddh) . figure 6 s hows the various voltages required by the cyberdisplay320 lcd panel. video processor - the video input is a standard 1.0 volt p-p composite monochrome video signal, either 525 or 625 lines. if only color composite video is available, it is recommended that the chroma frequencies be filtered out prior to this ic. the dc restore section provides black level clamping. for this portion to function correctly, the source impedance of the video signal must be <500. the clamp timing is shown in figure 4 . the sync separator will separate the horizontal and vertical timing signals from the incoming video, and provide them to the timing generator, and to the pll. the remaining luma information passes to the two output video amplifiers, via the osd switch, and the video adjust block. the black level adjust (pin 30) is a dc input, with an input range of 2.0 to 3.0 volts, setting the black level at vidh and vidl according to figure 2. the black level does not change if the voltage at pin 30 is increased past 3.0 volts, and it is not affected by the gain adjust(pin 8). the gain adjust(pin 8) input is a dc input, with a range of 1.25 t o +2.5 volts, resulting in a 7 d b change at vidl and vidh, as shown in figure 3 . the gain of figure 3 i s from the video input(pin 5) to vidl & vidh, measured from black level to white level, excluding sync. since vidl?s upper limit (and vidh?s lower limit) are clamped at 5.5 volts, the gain curve is valid as long as the signals are not clamped. timing generator - this section provides the horizontal and vertical scaling, and the eight timing signals required by the cyberdisplay320 lcd display panel. all fields of the incoming interlaced signal are provided to the display panel sequentially. this section is synchronized by signals from the sync separator and pll. the hck frequency is same as pll output frequency (6.05 mhz or 6.0 mhz). the vertical scaling algorithm depends on the setting of the 525/625 pin (pin 10). when set low (for 525/60 signals) no vertical scaling occurs. when set high (for 625/50 signals) lines are skipped according to the following algorithms: ? odd field, line number 22+(12n+6) and 22+(12n+12) where n=0,1,2,3.... were skipped, or, the first skipped line is line 28, ? even field, line number 334+(12n+3) and 334+(12n+9) where n=0,1,2,3.... were skipped, or, the first skipped line is line 337, horizontally, a small portion of the left and right edges of the video content line is expanded. figure 7 i ndicates the horizontal timing. all timing values are multiples of the hck period. the eight timing signals to the cyberdisplay320 lcd display panel are (refer figures 8- 1 0) : ? pdr (pin 13) - power down reset is high for normal operation. it is set low when the MCVVQ111AFB i s set to the sleep mode. ? vck (pin 15) - vertical clock. the active low output appears every other line, indicating the beginning of an even numbered row. it is present for video lines 22 through 260 only. ? vpl (pin 16) - vertical start pulse. this active low output appears once per field at line 22, to indicate the start of a field. ? hodl (pin 17) - this output changes polarity t o satisfy the hodl i nversion requirement of the cyberdisplay320 lcd display panel. the c hanges occur during the back porch time of video lines 22 through 261 of each field, with an addition change at line 4 of either field 1 or 2, depending on the initial lock-up condition. ? hpl (pin 23) - horizontal start pulse. this active output indicates the beginning of each line. it is present for video lines 22 through 261 only.
motorola jan. 2002 rev 0 p age 14 MCVVQ111AFB ? hck (pin 24) - horizontal clock. this square wave output has a frequency of 384x the video horizontal frequency. this output is present continuously in both fields. ? rene (pin 25) - row enable (even) - this active low output occurs during the active video time of each even numbered line. it is present for video lines 22 through 260. ? reno (pin 26) - row enable (odd) - this active low output occurs during the active video time of each odd numbered line. it is present for video lines 23 through 261. hodl selection - during cue/review/pause mode of the camcorder operation or under noisy environment, which defined as abnormal video mode, the hodl should be under column i nversion output. h odl selection(pin 2) is set to high (column inversion) for abnormal video mode a nd low (pixel inversion) for normal mode . the switching frequency of hodl polarity can be either vf/2 hz or vf/4 hz depending on the setting of the hodl_inv_freq(pin 37). vf is defined as vertical frequency. t he minimum voltage level for logic high of hodl sel is 0.66xv bat volts a nd the maximum voltage level for logic low is 0.33xvbat volts. switching frequency of hodl polarity : osd input - if the osd display information is not contained in the composite video signal, then osd information can be applied to pin 3. the signal levels at this pin must conform to that shown in figure 1 1, and must be externally generated and synchronized with the video. the sync outputs at pins 45 and 46 can be used for synchronization. normally, pin 3 is to be at ground to display the video applied at pin 5. when the osd input signal at pin 3 exceeds the osd threshold (0.75 volt), the internal switch transfers the video amplifiers? outputs to the black level, causing a black displ ay at the lcd panel. this black time can be, e.g., a border. the osd black level is the same as that set for the normal video black le vel, and is set by the voltage at pin 30 (see figure 2) . when the osd input signal is increased past the white threshold (2.25 volts), the video amplifiers? outputs go to the white level. formation of the on-screen characters is accomplished by appropriate timing of the signal at pin 3, as shown in the example in figure 1 2. the osd input signal must be returned to ground to resume displaying the video signal at pin 5. if the osd input pin is not used, it must be connected to ground. the default osd contrast is 92.5%(1.475v) . sleep mode - the sleep mode, activated by setting sleep pin low, will shut off the entire ic by r emoving all power supply voltages and the driv ing s ignals from the lcd display panel. t his mode results in power consumption by the ic of less than 1 mw . pdr - the pdr section prevents invalid video display during the power up or when vddh drops below 10 volts. the pdr will be released if following two conditions are met: . 3 33 - 400 m s elapses after power up . vddh is no less than 10 volts. only if both of the above conditions meet, the display panel will be enabled. the pdr scheme can be either scheme 1 or scheme 2 depending on the setting of sel_pdr(pin 42). the difference between these two schemes is: when pdr is asserted during vblanking, 3 rene/reno pulses will be generated under scheme 2 but no rene/reno pulse will be generated under scheme 1. hodl_inv_freq pal ntsc 0 25 hz 30 hz 1 12.5 hz 15 hz
motorola jan. 2002 rev 0 p age 15 MCVVQ111AFB sleep agnd 525/625 band gap refernce ok pll pll filter 0 .47 uf vbg timing generator 1 0 nf vsync hsync sync separator h v syfltr 1uf 384fh 0.1u 75 clamp dc restore osd level detect agnd blkg white 3 4 8 gain blk lvl. 3 0 gamma bias 3 6 blk level & gain adj. 31 video amps 27 28 29 14 vidlc vidhc 1nf vidh vidl 48 33uh 10uf 0.1uf 4 4 a n a l o g v b a t v b a t 4 3 4 2 pdr 3 9 v d d h 4 0 3 7 voltage converter 3 2 3 8 20 19 18 vee 11 22 21 26 25 24 vdd vcom vref vss reno rene hck hpl 23 17 16 15 13 hodl vpl vck dgnd pdr 100n 100n 2.7 to 5.5 v cyberdisplay320 lcd panel figure 1 3 a pplication circuit r ef gnd 100n 1 33 4 10 35 7 46 45 47 9 5 6 3 12 video in vhio sel 2.0 k 2 hodl sel q d c o l u m n i n v e r s i o n p i x e l i n v e r s i o n 13k 10k 5k 27k 10k pin 19 vee 10k 20k 36k vcom pin 18 1k init hiltor vbat or gnd osd generato r s e l _ p d r h o d l _ i n v _ f r e q 11v test mode 41 v d d c a p 0.1u 10u
motorola jan. 2002 rev 0 p age 16 MCVVQ111AFB application information figure 1 3 s hows the basic application circuit using MCVVQ111AFB a long with cyberdisplay320 lcd panel . applicable points are: ? the components at pins 6, 7, and 9 must be in a neat, tight arrangement connected directly to the ground at pin 4 . ? it is recommended that a socket not be used for the MCVVQ111AFB . ? pins 1 0 can be hard wired to vbat or to ground, or controlled by a logic circuit (microprocessor), depending on the application . ? t he connections to the cyberdisplay320 lcd panel (pins 13 - 27) should be short and direct. the pinout sequence on the MCVVQ111AFB m atches that of the lcd panel . ? a ground plane is recommended. ? the components of the loop filter on pin 7 may be depending on the customer pcb layout. gamma correction the gamma bias pin and the gain pin control the shape and amplitude of the video output so as to match the panel non-linear tran s- mittance characteristics. the gain parameter controls the slope from black to white region, whereas the gamma parameter sets the turning point of the black region. figure 14, figure 15 and figure 16 show how different gamma and gain settings can affect the characteristic of video output. (the detailed plots of characteristic of video output under different gain and gamma settings wi ll be provided in another document: application note.) of this curve figure 1 4 g ain = 1.5v, gamma=1.25v gamma set this turning gain set the slope point
motorola jan. 2002 rev 0 p age 17 MCVVQ111AFB figure 15 g ain = 1.5v, gamma=1v with a smaller gain, the slope in figure 15 i s less steeper than the one in figure 1 4 figure 16 g ain = 1.5v, gamma = 0.75v with a smaller gamma, the black region turning point in figure 16 i s lower than the one in figure 1 4
motorola jan. 2002 rev 0 p age 18 motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, represen tation or guar- antee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out o f the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or i ncidental damages. ?typical? parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applicatio ns and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by cus- tomer?s technical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola pro ducts are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applica tions intended to support or sustain life, or for any other application in which the failure of the motorola product could create a situation wher e personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shal l indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, da mages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unin- tended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the pa rt. motorola and are registered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. mfax is a trademark of motorola, inc. how to reach us: usa/europe/locations not listed: motorola literature distribution; japan: nippon motorola ltd.; tatsumi-spd-jldc, 6f seibu-butsuryu-center, p.o. box 5405, denver, colorado 80217. 303-675-2140 or 1-800-441-2447 3-14-2 tatsumi koto-ku, tokyo 135, japan. 81-3-3521-8315 mfax?: rmfax0@email.sps.mot.com - touchtone 602-244-6609 asia/pacific: motorola semiconductors h.k. ltd.; silicon harbour center, internet: http://design-net.com 2 dai king street, taipo industrial estate, tai po, n.t., hong kong. 852-26668333 MCVVQ111AFB


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