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STV2110A pal-secam luma-chroma & deflection processor september 1993 preliminary data 1 2 3 4 5 6 7 8 9 10 11 12 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 13 14 15 16 17 18 19 20 21 24 23 22 cog hvcc bout cob yin slpf sxtl cvbs lfb vout hout ctr dli ps secin secam chroma input chroma standard i/o delay chroma input contrast control horizontal output vertical output line flyback input composite video signal scanning loop filter scanning xtal green cut-off capacitor blue output horizontal vcc blue cut-off capacitor luminance signal input vcc cor brig fbl clpf cxtl ckp sat dlo cks cdr f440 gnd cdb f425 ground blue deemphasis capacitor 4.40mhz filter red deemphasis capacitor secam killer capacitor chroma output saturation control pal killer capacitor chroma xtal supply voltage input red cut-off capacitor brightness control fast blanking input chroma loop filter 4.25mhz filter icat cathodecurrent rin red input bin gin green input blue input acc acc control capacitor f432 4.32mhz filter ground gnd palin pal chroma input vcc supply voltage blk blanking input gout green output rout red output 2110a-01.eps pin connections shrink 42 (plastic package) order code : STV2110A rgb and fast blanking inputs automatic cut-off control dc-controlled brightness, con- trast and saturation ceramic 500khz vco for line deflec- tion chroma standard automatic identifi- cation bidirectional i/o for chroma stand- ard phase-locked reference oscillator using a standard 4.43mhz osd capability on outputs video identification generator description the STV2110A is a pal-secam chroma decoder, video and h/v deflection processor for ctv. used with the tda8222, this ic permits a complete low cost solution with external output stages. it is pin compatible with stv2102 pal only proces- sor. this is advance information on a new product now in development or undergoing evaluation. details are subject to change without no tice. 1/15
sat black insertion clamp black reference saturation matrix rgb switch contrast + clamp 35 16 sat fbl rin gin bin ctr tube temp meas. brightness 36 brig blanking rgb cut-off blk. rgb leak. current meas. 5 hvcc vcc vcc xvco 90deg secam ident. phase detector killer burst detector permutator standard control dl matrix acc 19 32 34 33 cxtl clpf acc ckp palin secin yin 9 flip-flop pal flip-flop secam 22 25 23 20 24 burst gate generator 13 sync. sep. 12 mute 10 phase comp. 2 phase shift divider phase comp. 1 vco line output frame output decoder 11 15 14 hout vout sxtl slpf cvbs cks f432 ps cdb f425 cdr f440 lfb 3 38 8 rout gout bout cor cog cob icat frame sync. separator gnd dlo dli 1 27 41 37 39 40 4 6 7 42 2 blk blank. comp. line counter pal demod. secam demod. 30 18 17 31 21 26 29 28 gnd y input contrast 2110a-02.eps block diagram STV2110A 2/15
functional description deflection synchronization separator the synchronization separator is based on the bottom of synchronization pulses alignment to an internal reference voltage. an external capacitor permits to align synchro. pulses, two external resis- tors determines the detection threshold of synchro pulses. the frame synchronization pulses are locked to a 32 s reference signal to perfect inter- lacing. horizontal scanning the horizontal scanning frequency is obtained from a 500khz vco. the circuit uses two phase-locked loops (pll). the first one controls the frequency; the second one, fully integrated, controls the rela- tive phase of the synchronization and the line fly- back signals. the first pll has two times constants : a long time constant during the picture to have a good noise immunity, a short time constant at the beginning of the frame to recapture faster the phase in case of vcr video signal. more over, the pll is in short time constant three lines before frame pulses oc- cured, it permits to ensure good interlacing when the video signal comes from a vcr tape with high phase error. the horizontal output signal is 28 s width. on starting up, horizontal pulses are enabled at v cc = 6.8v. on shutting down, horizontal pulses are inhibited for v cc = 6.2v. vertical scanning the windows for the frame sync detection are generated by a count down system. the selection of the windows is determined by the ic status : - video identification off - window : 248/314 - video identification on - window : 248/352 when a sync pulse is detected inside the window a 10.5 lines long pulse is provided to v out pin. the count down system provides also the needed signals for the time constant switch, the line pll inhibition and service signals to the rest of the ic. chroma acc amplifier, dl matrix, permutator and de- modulator the correct chroma subcarrier input, issued from bandpassor bell filter, is internally selected with the standard. the acc amplifier envolves three stages : the first one select the correct input, the second one the -6db in picture (pal mode), the third one is controled by the acc voltage. the dynamic range is over than 30db. the chrominance output signal is fed to the delay line. - pal mode : the adding and substracting direct and delayed signals are performed by the dl matrix function. two synchronous demodulators multiplies the (b-y) signal with the 0 degree phase 4.43mhz reference signal and the (r-y) signal with the alternate 90 deg. 4.43mhz phase reference signal. - secam mode : the permutator separatesthe two (b-y) and (r-y) subcarriers. these signals are demodulated by two fm demodulators with two external l, c centered on f o(blue) = 4.25mhz and f o(red) = 4.406mhz. 4.43mhz phase locked loop the oscillating frequency of the 4.43mhz crystal oscillator is controlled by the output voltage of the loop filter. the phase detector will lock the 90 de- gree reference signal to the direct burst signal. a 90 degree phase shifter permits to recover the 0 degree reference signal. a flip-flop driven by line pulses permits to generate the alternate 90 de- gree signal. acc control and color killer pal mode : the direct burst signal is demodulated with the 90 degree reference signal. the demodulation result is used by acc control and killer function. secam mode : acc control is done by a x 2 demodulator. for identification the burst signals of the red and blue lines are demodulated by the external lc con- nected on pin 31, it is centered at 4.32mhz. this give positive and negative signals which are in- verted by the signal coming out of the secam flip-flop. in both standard, if the demodulation result is al- ways positive, the killer capacitor is charged and the standard is identified (color on). when de- modulation result is always negative, the killer ca- pacitor voltage reaches the flip-flop inhibition level, so the alternace sequence is reversed and the capacitor is charged again. in case of no video signal, both killer capacitors voltage are maintained about v cc /2, below the color off threshold. in pal or secam, the acc control voltage is obtained by the peak detection of the demodulated burst. STV2110A 3/15
automatic standard identification the circuit is alternately forced in eachmode during two fields (pal mode, secam mode disabled or secam mode, pal mode disabled). if palsignal is identified, the alternate pal/secam sequency is locked in pal mode. to have a secam identification, the circuit must memorizes a first secam identification, than test the pal mode and confirm a second secam iden- tification. the secam identification will take from four to six fields. output pin 21, named ps, is high level in pal mode and low level in secam mode. forced standard : pin 21 can be used for the purpose : - pin 21 to hvcc : pal mode - pin 21 to ground : secam mode video input stage the luminance input is controlled by the contrast control stage which range is 20db. the luminance and color difference signals are added in the video matrix circuit to obtain the color signals. the color signals are sent to an rgb switch which will drive to the outputs either internal rgb signals or external rgb signals. automatic cut-off control the black levels of the rgb outputs are controlled with the cut-off loops during three line periods after the frame retrace. the cut-off measurements are sequentially achieved during these three lines. the leakage current measurement is achieved during the frame retrace and memorized on an internal capacitor, thus the circuit is able to extract the cut-off current from the total current measurement. warm-up detector at the start-up, the cut-off loops are switch off, a white level is inserted on the luminance signal until a cathode current is detected. then the cut-off loops are released. rgb inputs to avoid the black level of the inserted signal differing from the black level of the normal video signal, the external rgb are clamped to the black level of the luminance signal. therefore, an ac coupling is required for the rgb inputs. the rgb inputs are controlled by a 12db range contrast control stage. absolute maximum ratings symbol parameter value unit hv cc horizontal supply voltage (pin 5) 12 v v cc video & chroma supply voltage (pins 1-41) hv cc + 0.5 v h out horizontal output (pin 15) 12 v t stg storage temperature -55, +150 o c t oper operating temperature 0, +70 o c 2110a-01.tbl thermal data symbol parameter value unit r th (j-a) junction-ambient thermal resistance max. 60 o c/w 2110a-02.tbl dc and ac electrical characteristics (hv cc =v cc =9v,t amb =25 o c unless otherwise specified) symbol parameter test conditions min. typ. max. unit hv cc scanning supply voltage (pin 5) 8.1 9 9.9 v v cc video & chroma supply voltage (pins 1-41) 8.1 9 9.9 v i cch scanning supply current (pin 5) no load 25 35 ma i ccv&c video & chroma supply current (pins 1-41) no load 45 55 ma p d total power dissipation no load 630 890 mw 2110a-03.tbl STV2110A 4/15
dc and ac electrical characteristics (continued) (hv cc =v cc =9v,t amb =25 o c unless otherwise specified) symbol parameter test conditions min. typ. max. unit luminance input (pin 9) v bw9 input voltage 350 490 mv pp v dc9 dc level no input signal 2.6 v i g input current ? during burst period ? out of burst period 150 1 a a g 9 luma gain 7.4 bw467 bandwidth (y to r, g, b outputs) -3db 6 mhz contrast control (pin 16) v 16 contrast control voltage 2 to 4 v v 16 (max.) allowed control voltage 5 v g 16 contrast control range 20 db i 16 input current 10 a brightness control (pin 36) v 36 brightness control voltage 1.8 to 4.3 v v 36 (max.) allowed control voltage 5 v i 36 input current 10 a saturation control input (pin 27) v 27 saturation control voltage 2 to 4 v v 27 (max.) allowed control voltage 5 v g 27 saturation control range -50 db v 27m mute level 0.5 v i 27 input current 10 a rgb outputs (pins 4-6-7) v bw 4-6-7 output signal amplitude (black to white) ? 0.35v b to w @ pin 9 ? contrast @ 4v ? sat. & brig. @ 3v 2.6 v i 4-6-7 individual output sinking current 2 ma vm 4-6-7 maximum peak white level 7.8 v v blank 4-6-7 blanking level 0.5 v v co min. minimum level of inserted cut-off lines 2.5 v v co max. maximum level of inserted cut-off lines 4.5 v relative variation in black level with various cont. sat. brig between the 3 channels 20 mv ? v temp black level thermal drift 0.5 mv/ o c tracking between luminance and chrominance signals over 10db contrast control 2db rgb inputs (pins 37-39-40) v bw37-39-40 input amplitude (b to w) 0.7 2 v v clamp 37-39-40 clamp level contrast max 1.8 v i 37-39-40 control current 150 a i i37-39-40 leakage current 1 a bw 37-39-40 bandwidth -3db 8 mhz g ctr rgb contrast control range 14 db g 37-39-40 rgb gain 3.7 2110a-04.tbl STV2110A 5/15
dc and ac electrical characteristics (continued) (hv cc =v cc =9v,t amb =25 o c unless otherwise specified) symbol parameter test conditions min. typ. max. unit fast blanking input (pin 35) v th1-35 first threshold (switching) 0.7 v v th2-35 second threshold (blanking) 2.1 v t switch switching delay 50 ns t blank blanking delay 100 ns cathode current input (pin 42) v ref42 leakage current reference voltage 1.75 v ? v ref42 co reference refered to leakage current reference 250 mv i 42 output current 150 a v sb42 start-beam current detection reference voltage 2.4 v automatic cut-off (pin 3-8-38) cut-off capacitor clamping current 100 a pal chrominance input (pin 18) v 18 input level 0.3 1.0 v pp v burst-18 minimum burst signal amplitude within the acc control range 30 mv pp g acc acc control range change of burst over whole acc control range < 1db 30 db r 18 input impedance 8 k ? v dc-18 dc level no input signal 3.5 v secam chrominance input (pin 17) v 17 input level 0.3 1.0 v pp v burst-17 minimum burst signal amplitude within the acc control range 30 mv pp r 17 input impedance 20 k ? v dc-17 dc level no input signal 3.5 v acc capacitor (pin 30) i 30 charging current during burst gate period 250 a i i30 leakage current out of burst gate period 1 a pll loop filter (pin 34) i 34 control current 400 a chromaxtal (pin 33) cr 33 catching range 700 hz subcarrier output (pin 22) v burst-22 output burst amplitude (pal mode) within acc control range 2 vpp pal killer capacitor (pin 32) v off-32 color off threshold 5.0 v v on-32 color on threshold 5.4 v v inh-32 pal flip-flop inhibition level 3.2 v i 32 control current 250 a v nom-32 voltage with nominal input signal 6.0 v 2110a-05.tbl STV2110A 6/15
dc and ac electrical characteristics (continued) (hv cc =v cc =9v,t amb =25 o c unless otherwise specified) symbol parameter test conditions min. typ. max. unit secam killer capacitor (pin 23) v off-23 color off threshold 5.6 v v on-23 color on threshold 6 v v inh-23 secam flip-flop inhibition level 3.2 v i 23 control current 250 a v nom-23 voltage with nominal input signal 7.3 v delayed channel input (pin 20) v dc-20 dc level no input signal 2.2 v r 20 input impedance pal standard secam standard 8 20 k ? k ? 4.25mhz and 4.40mhz filter (pins 28-31) v dc-28-31 dc level no input signal 2.3 v r 28-31 input impedance 20 k ? red and blue deemphasis capacitors (pins 26-29) v dc-26-29 dc level no input signal 6.4 v r 26-29 input impedance 6 k ? 4.32mhz filter (pin 25) v dc-25 dc level no input signal 3.5 v r 25 input impedance 40 k ? forcing/standard identification (pin 21) max.current on ps output pal secam +5 -5 ma ma dc output voltage pal secam 7.5 1.5 v v dc input voltage pal secam hv cc 0.0 v v composite video base band signal (pin 12) v ref-12 clamp voltage i 12 =-1 a 1.6 1.85 2.1 v v 12 video input signal (sync to white) 1 v pp i 12 sync threshold 12 a scanning xtal (pin 11) f 11 frequency after divider 15.625 khz cr 11 frequency control range after divider 700 hz pll loop filter (pin 10) i iow-10 output current long time constant 0.15 ma i high-10 output current short time constant 0.40 ma delayed line flyback input (pin 13) v th-13 threshold 0.6 v v 13 allowed voltage range - 0.4 hv cc v i 13 input current v 13 < 0.6v 5 a 2110a-06.tbl STV2110A 7/15
dc and ac electrical characteristics (continued) (hv cc =v cc =9v,t amb =25 o c unless otherwise specified) symbol parameter test conditions min. typ. max. unit direct blanking input (pin 2) v th-2 threshold 0.6 v v 2 allowed voltage range - 0.4 hv cc v i 2 input current v 2 < 0.6v 5 a horizontal output (pin 15) t 15 output pulse width 26 28 29 s v low-15 output voltage (open collector) i 15 = 10ma 1.5 v v 5 start hv cc start threshold 6.8 v v 5 stop hv cc stop threshold 6.2 v ? t 15 ? 2 phase range 12 s vertical output (pin 14) t 14 output pulse width 10.5 line t sync1 frame synchro. window (search) 248 to 352 line v low-14 output voltage (open collector) 1 v 2110a-07.tbl rgb output signal 100% 0% 50% 2345 v 16 (v) 2110a-03.eps figure 1 : contrast control curve rgb output signal 100% 0% 50% 2345 v 27 (v) 2110a-04.eps figure 2 : saturation control curve ? v 2345 2v -1v 1v 0v v 36 (v) 2110a-05.rps figure 3 : difference between black level and measuring level at rgb outputs as a function of the brightness control input STV2110A 8/15
3-8-38 42 2110a-06.eps figure 4 : pins 3-8-38-42 (cog, cob, cor, icat) 37-39-40 2110a-07.eps figure 5 : pins 37-39-40 (rin, gin, bin) 4-6-7 2110a-08.eps figure 6 : pins 4-6-7 (rout, gout, bout) 9 2110a-09.eps figure 7 : pin 9 (yin) 10 2110a-10.eps figure 8 : pin 10 (slpf) STV2110A 9/15
11 2110a-11.eps figure 9 : pin 11 (sxtl) v ref 12 2110a-12.eps figure 10 : pin 12 (cvbs) 2-13 2110a-13.eps figure 11 : pins 2-13 (blk, lfb) 14 2110a-14.eps figure 12 : pins 14 (vout) mute (pin 27) 16-27 2110a-16.eps figure 14 : pins 16-27 (ctr, sat) 15 2110a-15.eps figure 13 : pin 15 (hout) STV2110A 10/15
v ref1 v ref2 ipal isec 20 2110a-17.eps figure 15 : pin 20 (dli) 21 2110a-18.eps figure 16 : pin 21 (ps) v ref 25 2110a-19.eps figure 17 : pin 25 (f432) STV2110A 11/15
ref v v ref2 17 18 2110a-20.eps figure 18 : pins 17-18 (secin, palin) v ref 28 31 2110a-21.eps figure 19 : pins 28-31 (f440, f425) v ref 26 29 2110a-22.eps figure 20 : pins 26-29 (cdb, cdr) 23-32 2110a-23.eps figure 21 : pins 23-32 (cks, ckp) 22 2110a-24.eps figure 22 : pin 22 (dlo) 36 2110a-25.eps figure 23 : pin 36 (brig) STV2110A 12/15
ipal isec 30 2110a-26.eps figure 24 : pin 30 (acc) 33 2110a-27.eps figure 25 : pin 33 (cxtl) phase comparator base current compensation 34 2110a-28.eps figure 26 : pin 34 (clpf) 35 2110a-29.eps figure 27 : pin 35 (fbl) STV2110A 13/15
STV2110A 10nf 1k ? 1k ? 4.43mhz cxtl clpf acc v cc 100nf 4.7nf 270k ? 330k ? 18k ? cvbs dl & trap yin 9 33 34 32 33nf 47nf ckp 6.8nf cks 10nf 1k ? cvbs 120pf 30 10 h palin cvbs 10 h 21 secin 10nf 18 ps fbl fbl 22nf 75 ? rin gin bin 22nf 75 ? 22nf rin gin bin 75 ? 35 39 5 hvc c vcc 22nf 100 f vcc 22nf 100 f hvcc 75 ? 100nf 100nf 100nf 22k ? brig cor cog cob 39k ? 15k ? 38 3 8 36 brig 22k ? 39k ? 15k ? ctr ctr 16 icat 47k ? vcc vcc icat rout gout bout 22k ? 39k ? 15k ? vcc sat 100nf 470 ? 470 ? 470 ? 6 sat mute v cc vout v cc hout 1k ? 47nf 390 ? +v line yoke ramp generator (tda1771) 14 15 11 10 12 sxtl slpf cvbs 560k ? 56pf 100nf 3.9k ? cvbs 3.3nf 503khz dli dlo 10nf gnd 24 20 17 dl 1k ? 680 ? 390 ? 750 ? 8.2 h 10 h 10nf 13 f432 f425 cdr cdb 10 h 150pf 10nf lfb 10 h 1k ? 10nf 22 26 f440 10 h 1k ? 10nf 25 vertical deflection 13740 42 27 4 7 23 19 29 28 31 2 blk 1k ? 4.7nf 330pf 100pf 100pf 1.2k ? 5.6k ? 41 2k ? gnd 180pf 180pf 10k ? 100 ? 2 x 1n4148 1k ? 100nf 100nf h h 1.2k ? 1 f 22k ? 18k ? v cc h 9v 9v 2vpp 2110a-30.eps application diagram STV2110A 14/15
1 21 a a1 l e d e stand-off b2 f e4 42 22 b e3 i b1 pmsdip42.eps package mechanical data 42 pins - plastic shrink dip dimensions millimeters inches min. typ. max. min. typ. max. a 3.30 0.130 a1 0.51 0.020 b 0.35 0.59 0.014 0.023 b1 0.20 0.36 0.008 0.014 b2 0.75 1.42 0.030 0.056 b3 0.75 0.030 d 39.12 1.540 e 15.57 17.35 0.613 0.683 e 1.778 0.070 e3 35.56 1.400 e4 15.24 0.600 f 14.48 0.570 i 5.08 0.200 l 2.54 0.100 sdip42.tbl information furnished is believed to be accurate and reliable. however, sgs-thomson microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no licence is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectronics. specifications mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of sgs-thomson microelectronics. ? 1994 sgs-thomson microelectronics - all rights reserved purchase of i 2 c components of sgs-thomson microelectronics, conveys a license under the philips i 2 c patent. rights to use these components in a i 2 c system, is granted provided that the system conforms to the i 2 c standard specifications as defined by philips. sgs-thomson microelectronics group of companies australia - brazil - china - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. STV2110A 15/15

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