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STV6410A audio/video switch matrix december 1998 tqfp64 (10 x 10 x 1.4mm) (full plastic quad flat pack) order code : STV6410Ad . i 2 c bus control . standby mode video section . 5 cvbs inputs, 4 cvbs outputs (one with selectable chroma trap filter) . 5 y/c inputs, 3 y/c outputs . 6db gain on all cvbs/y and c outputs . 1 y/c adder . 2 rgb/fb inputs, 1 rgb/fb output with 6db adjustable gain . video muting on all the outputs . 3 slow blanking inputs/outputs . sync bottom clamp on all cvbs/y and rgb inputs, average on c inputs . bandwidth : 15mhz . crosstalk : 60db typ. audio section . 5 stereo inputs, 4 stereo outputs (two with level adjustment) . mono sound output . stereo to mono capability on all scarts . audio muting on all the outputs description the STV6410A is a highly integrated i 2 c bus-con- trolled audio and video switch matrix, optimized for use in digital set-top box applications. it provides all the audio and video routings required in a full three scart set-top box design. it is also fully pin compatible with stv6411a, the two scart version. 1/22
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 rout_tv gnda rin_tv v cca ycvbsin_tv v ref gout_tv lout_vcr bout_tv rout_vcr lout_cinch rout_cinch cin_tv lin_tv lin_vcr ycvbsin_vcr fbout_tv fbin_aux fbin_enc add scl sda v cc12 ycvbsin_aux slb_tv yin_aux gndv1 slb_vcr rcin_aux gin_aux slb_aux bin_aux rcout_tv v cc1 cvbsin_stb lin_aux ycvbsin_enc lout_tv ycvbsout_tv rout_aux cout_vcr lout_aux ycvbsout_vcr aout_rf vout_rf gndv3 filter v cc3 cout_aux gndv2 v cc2 ycvbsout_aux rin_aux yin_enc rin_stb cin_enc rcin_enc lin_stb rin_enc gin_enc lin_enc bin_enc rin_vcr cin_vcr 6410a-01.eps pin connections pin list pin number symbol description 1 rcout_tv red/chroma output, to tv scart 2 lout_tv audio left output, to tv scart 3 ycvbsout_tv y/cvbs output, to tv scart 4 rout_aux audio right output, to aux scart 5 cout_vcr chroma output, to vcr scart 6 lout_aux audio left output, to aux scart 7 ycvbsout_vcr y/cvbs output, to vcr scart 8 aout_rf audio (l+r) output to rf modulator 9 vout_rf video (cvbs) output to rf modulator 10 gndv3 video switches ground 3 11 filter chroma trap filter 12 v ccv3 video switches supply 3 (8v) 13 cout_aux chroma output, to aux scart 14 gndv2 video switches ground 2 15 ycvbsout_aux y/cvbs output, to aux scart 6410a-01.tbl STV6410A 2/22
pin number symbol description 16 v ccv2 video switches supply 2 (8v) 17 fbout_tv fast blanking output, to tv scart 18 fbin_aux fast blanking input, from aux scart 19 fbin_enc fast blanking input, from encoder 20 add i 2 c bus ic address programmation 21 scl i 2 c bus clock 22 sda i 2 c bus data 23 v cc12 slow blanking power supply (12v) 24 ycvbsin_aux y/cvbs input from aux scart 25 slb_tv slow blanking input/ouput from tv 26 yin_aux y input, from aux scart 27 slb_vcr slow blanking input/ouput from vcr 28 rcin_aux red/chroma input, from aux scart 29 gndv1 video switches ground 1 30 gin_aux green input, from aux scart 31 slb_aux slow blanking input/ouput from aux 32 bin_aux blue input, from aux scart 33 v ccv1 video switches supply 1 (8v) 34 cvbsin_stb cvbs input from stb 35 lin_aux audio left input, from aux scart 36 ycvbsin_enc y/cvbs input from encoder 37 rin_aux audio right input, from aux scart 38 yin_enc y input, from encoder 39 rin_stb audio right input, from stb 40 cin_enc chroma input, from encoder 41 lin_stb audio left input, from stb 42 rcin_enc red/chroma input, from encoder 43 rin_enc audio right input, from encoder 44 gin_enc green input, from encoder 45 lin_enc audio left input, from encoder 46 bin_enc blue input, from encoder 47 rin_vcr audio right input, from vcr scart 48 cin_vcr chroma input, from vcr scart 49 lin_vcr audio left input, from vcr 50 ycvbsin_vcr y/cvbs input from vcr scart 51 v ref voltage reference decoupling 52 ycvbsin_tv y/cvbs input, from tv scart 53 lin_tv audio left input, from tv scart 54 cin_tv chroma input, from tv scart 55 v cca audio switches supply (8v) 56 rin_tv audio right input, from tv scart 57 gnda audio switches ground 58 rout_cinch audio right output, to cinch 59 lout_cinch audio left output, to cinch 60 rout_vcr audio right output, to vcr scart 61 bout_tv blue output, to tv scart 62 lout_vcr audio left output, to vcr scart 63 gout_tv green output, to tv scart 64 rout_tv audio right output, to tv scart 6410a-01.tbl pin list (continued) STV6410A 3/22
fb switch 4v 0v rgb switch c switch y/cvbs switch c switch y/cvbs switch c switch y/cvbs switch cinch switch aux switch vcr switch tv switch 64 6db 6db -14db 6db 6db 6db 6db 6db 6db 0/6db -14db 0/6db -14db 0/6db -14db 0/6db stereo/ mono 2 lout_tv rout_tv 8 aout_rf 60 62 4 6 rout_vcr lout_vcr lout_aux rout_aux 58 59 lout_cinch rout_cinch 7 5 cout_vcr ycvbsout_vcr 25 27 31 slow blank, i/o monitor slb_tv slb_vcr slb_aux 15 13 ycvbsout_aux cout_aux 3 ycvbs/out_tv 6db 61 63 17 gout_tv bout_tv fbout_tv 1 rcout_tv 9 vout_rf 11 filter trap b_enc b_aux b_enc b_aux g_enc g_aux r/c_enc r/c_aux mute r/c_aux r/c_enc c_enc c_vcr mute mute mute mute mute mute mute mute mute mute y_enc cvbs/y_tv cvbs_stb cvbs/y_vcr cvbs/y_enc y_enc cvbs_stb cvbs/y_vcr cvbs/y_enc cvbs/y_aux y_aux l_enc l_stb l_vcr l_aux r_enc r_stb r_vcr r_aux l_enc l_stb l_tv l_aux r_enc r_stb r_tv r_aux l_enc l_stb l_tv r_enc r_stb r_tv l_vcr r_vcr l_enc l_stb l_tv r_enc r_stb r_tv l_vcr r_vcr l_aux r_aux r/c_enc c_enc c_vcr c_tv r/c_enc c_enc c_aux c_tv y_aux cvbs/y_tv cvbs_stb cvbs/y_aux cvbs/y_enc y_enc 43 39 56 47 37 53 49 45 41 35 38 26 34 52 50 36 24 54 48 40 42 28 30 44 46 32 18 19 fbin_enc fbin_aux bin_enc bin_aux gin_enc gin_aux rcin_enc rcin_aux cin_enc cin_vcr ycvbsin_aux cin_tv ycvbsin_enc ycvbsin_vcr cvbsin_stb ycvbsin_tv yin_aux yin_enc lin_enc lin_stb lin_tv lin_vcr lin_aux rin_enc rin_stb rin_tv rin_vcr rin_aux 21 22 scl sda i 2 c bus decoder STV6410A stereo/ mono stereo/ mono 6410a-02.eps block diagram STV6410A 4/22
electrical characteristics t amb = 25c, av cc = vv cc = 8v, v cc12 = 12v, r louta = 10k w , r ga = 600 w , r gv = 50 w , r loutv = 4.7k w , unless otherwise specified. symbol parameter test conditions min. typ. max. unit av cc audio operating supply voltage 7.5 8 8.5 v vv cc video operating supply voltage 7.5 8 8.5 v v cc12 slow blanking control supply voltage 11.2 12 12.8 v active (all channels on) i cca audio supply current av cc = 8v, no input signal 10 15 ma i ccv video supply current (iccv1 + iccv2 + iccv3) vv cc = 8v, no input signal 65 80 ma i cc12 12v supply current v cc12 = 12v slblk input mode slblk output mode, no load 0 2.0 2 3 m a ma standby (all channels off) i ccastd audio supply current in stand by mode av cc = 8v 1.2 ma i ccvstd video supply current in stand by mode (i ccv1 + i ccv2 + i ccv3 ) vv cc = 8v 9 ma 6410a-04.tbl absolute maximum ratings symbol parameter value unit av cc ,vv cc supply voltage for audio and video sections 10 v v i voltage at pin i to gnd. except sda, scl at 5.5v max 0, v cc v v cc12 supply voltage for slow blanking sections 13.2 v v slbk voltage at slow blanking pins to gnd 0, v cc12 v vesd maximum esd voltage allowed (100pf capacitor discharged through 1.5k w serial resistor - human body model) 4kv t oper operating ambient temperature 0, +70 o c t stg storage temperature -20, +150 o c 6410a-02.tbl thermal data symbol parameter value unit r th (j-a) junction-ambient thermal resistance max. 68 o c/w 6410a-03.tbl STV6410A 5/22
electrical characteristics (continued) t amb = 25c, av cc = vv cc = 8v, v cc12 = 12v, r louta = 10k w , r ga = 600 w , r gv = 50 w , r loutv = 4.7k w , unless otherwise specified. symbol parameter test conditions min. typ. max. unit audio section svr100 supply voltage rejection v ripple = 500mv rms at f = 100hz, gain = 0db, v ref filter cap = 47 m f v ref filter cap = 220 m f 60 72 82 db db svr1k supply voltage rejection v ripple = 500mv rms at f = 1khz, gain = 0db 70 80 db v indc input dc level av cc = 8v v cc /2 v v inac input signal amplitude 2v rms r in input resistance 45 55 k w r inmatch input resistance matching 1 10 % f range bandwith -3db, 0.5v rms , r l = 10k w , gain = 0db 50 khz flatness spread of gain in audio band 0.5v rms , 20hz to 20khz, gain = 0db 0.5 db cs channel separation (from audio inputs) between l &r of tv outputs v in = 0.5v rms , f = 1khz, on one input, r l =10k w , gain = 0db 80 70 90 74 db db ci channel isolation from video inputs v in = 1 v pp , f = 15khz, on one input, r l = 10k w , gain = 0db 70 85 db v out output dc level av cc = 8v v cc /2 v v off dc offset change switching between inputs 1 15 mv r out output resistance 60 w eni equivalent input voltage noise bw = 20hz, 20khz, gain = 0db 5 m v g0 0db gain 0.5v rms , r l = 10k w , gain = 0db -0.5 +0.5 db g step step of gain -14db to +6db 1.75 2 2.25 db g match1 gain matching between different inputs on one output v in = 0.5v rms , 1khz, gain = 0db -0.5 0.5 db g match2 gain matching between left/right outputs of one input channel v in = 0.5v rms , 1khz, gain = 0db -0.5 0.5 db thd total harmonic distorsion 1khz, lpf @ 80khz v in = v out = 0.5v rms v in = v out = 2v rms 0.002 0.003 0.05 % % v cl output clipping level thd = 0.2%, 1khz 2.1 2.25 v rms r l output load resistance v in = 1v rms , thd = 0.3%, gain = 0db 2 2.25 k w mute mute suppression v in = 0.5v rms , on one input 90 db 6410a-05.tbl STV6410A 6/22
electrical characteristics (continued) t amb = 25c, av cc = vv cc = 8v, v cc12 = 12v, r louta = 10k w , r ga = 600 w , r gv = 50 w , r loutv = 4.7k w , unless otherwise specified. symbol parameter test conditions min. typ. max. unit video section v dcin dc input level bottom synch pulse 2 v i clamp clamping current at v dcin - 400mv 1 2 ma i leak input leakage current v in = v dcin + 1v 1 10 m a c in input capacitance 2 pf v in max input signal vv cc = 8v 1.5 2 v pp dyn dynamic output signal vv cc = 8v 3 4 v pp bw bandwidth at -3db y/cvbs rgb y/c mixer (on rf out) v in = 1v pp v in = 1vp p v iny = 1v pp , v inc = muted 15 15 10 18 18 15 mhz mhz mhz ct crosstalk isolation between channels v in = 1v pp at f = 5mhz, on one input 50 60 db r out output resistance 50 w r load load impedance 1 4.7 k w g rgb gain at rgb outputs v in = 1v pp , gain set to 6db 5.5 6 6.5 db g rgbm gain matching between r, g, b v in = 1v pp , gain set to 6db -0.3 0 0.3 db g rgbstep step of gain 3db to 6db 0.75 1 1.25 db g ycvbs gain on y/cvbs channels v in = 1v pp 5.5 6 6.5 db g ycvbsm gain matching between y, cvbs inputs v in = 1v pp -0.5 0 0.5 db dc out dc output voltage bottom sync pulse 1.1 1.3 v dc out rf rf output voltage bottom sync pulse 1.5 1.8 v dphi differential phase v in = 1v pp , 4.43mhz 0.7 dg differential gain v in = 1v pp , 4.43mhz 0.4 % mute mute suppression v in = 1v pp at f = 5mhz, on one input -55 db i vout output current v out dc @ +1v 1.5 2.5 ma chroma section v dcin dc input level 3 v r in input resistance 45 55 k w c in input capacitance 2 pf v in max input signal 1.5 2 v pp dyn dynamic output signal 3 3.8 v dc out dc output voltage 1.9 2.3 v cbw chroma bandwidth c in = 1v pp at - 3db 10 19 mhz ct crosstalk isolation between channel v in = 1v pp at f = 5mhz, on one input 52 db r out output resistance 50 w g outc gain at outc v in = 1v pp 5.5 6 6.5 db g cm gain matching between c inputs v in = 1v pp -0.5 0 0.5 db mute mute suppression v in = 1v pp at f = 5mhz, on one input 55 db ctoydel chroma to luma delay,source y/c pin other than rf_out 1, v pp @ 5mhz 4 20 ns ctoydel chroma to luma delay,source y/c pin rf_out 4 20 ns 6410a-06.tbl STV6410A 7/22
electrical characteristics (continued) t amb = 25c, av cc = vv cc = 8v, v cc12 = 12v, r louta = 10k w , r ga = 600 w , r gv = 50 w , r loutv = 4.7k w , unless otherwise specified. symbol parameter test conditions min. typ. max. unit slow blanking section input (input mode v cc8 = 8v 5%) slblow input low level threshold 2.5 3.25 4 v slbhigh input high level threshold 7.5 8.25 9 v i in input current 50 100 m a output (output mode v cc12 = 12v 5%, v cc8 = 8v 5%, r load > 10k w ) slblow output low level (int. tv) 0 0.02 1.5 v slbmed output med level (ext. 16/9) 5 5.75 6.5 v slbhigh output high level (ext. 4/3) 10 11 12 v fast blanking section input (input mode v ccv = 8v 5%) fblow/high input low/high level threshold 0.4 0.7 0.9 v i in input current 210 m a output (output mode v ccv = 8v 5%, r load > 1k w ) fb low output low level i in = 1.0ma i in = 0.2ma 00.7 0.3 v v fb high output high level i out = 1.0ma 3.6 4 4.4 v fb del fast blanking to rgb delay at 50% on digital rgb transients, at 2.7v on fb rise transient, at 1.5v on fb fall c load = 10pf max 30 ns fb trans fast blanking transitions at fb output rise time fall time c load = 10pf max between 10% and 90% between 90% and 10% 30 30 ns ns address selection input addsel_l address selection low level 0 0.2 v addsel_h address selection high level 4 v cc (8v) v i leak leakage current 10 m a 6410a-07.tbl STV6410A 8/22
electrical characteristics (continued) t amb = 25c, av cc = vv cc = 8v, v cc12 = 12v, r louta = 10k w , r ga = 600 w , r gv = 50 w , r loutv = 4.7k w , unless otherwise specified. symbol parameter test conditions min. typ. max. unit i 2 c bus characteristics scl v il low level input voltage -0.3 1.5 v v ih high level input voltage 3 5.5 v i li input leakage current v in = 0 to 5.5v -10 0 10 m a f scl clock frequency 0 100 khz t r input rise time 1.5v to 3v 1 m s t f input fall time 1.5v to 3v 300 ns c l input capacitance 10 pf sda v il low level input voltage -0.3 1.5 v v ih high level input voltage 3 5.5 v i li input leakage current v in = 0 to 5.5v -10 0 10 m a c l input capacitance 10 pf t r input rise time 1.5v to 3v 1 m s t f input fall time 1.5v to 3v 300 ns v ol low level output voltage i ol = 3ma 0.4 v t f output fall time 3v to 1.5v 250 ns c l load capacitance 400 pf timing t low clock low period 4.7 m s t high clock high period 4 m s t su,dat data set-up time 250 ns t hd,dat data hold time 0 340 ns t su,sto set-up time from clock high to stop 4 m s t buf start set-up time following a stop 4.7 m s t hd,sta start hold time 4 m s t su,sta start set-up time following clock low to high transition 4.7 m s 6410a-08.tbl STV6410A 9/22
i 2 c bus selection data transfers follow the usual i2c format: after the start condition (s), a 7-bit slave address is sent, followed by an eighth bit which is a data direction bit (w). a 8-bit subadress is sent to select a register, followed by a 8-bit data word to put in it. the ics i2c bus decoder permits the automatic incrementation mode in write mode. string format write only mode (s : start condition, p : stop condition, a : acknowledge) s slave address 0 a subaddress a data a p read only mode s slave address 1 a data a p slave address address a6 a5 a4 a3 a2 a1 a0 value 100101x auto increment mode s slave address 0 a subaddress a data0 a data1 a ........ datan a p i 2 c bus address write address : 1001 01x0 read address : 1001 01x1 address selection pin grounded : x = 0, write address = 94hex, read address = 95hex address selection pin to supply : x = 1, write address = 96hex, read address = 97hex input signals summary (write mode) reg. address (hex) data d7 data d6 data d5 data d4 data d3 data d2 data d1 data d0 00 tv audio level adjustment 0/6dbgain tv mono tv audio outputs control 01 cinch audio level adjustment 0/6dbgain not used cinch audio outputs control 02 aux mono vcr mono aux audio outputs control vcr audio outputs control 03 not used tv chroma mute y/cvbs & chroma tv outputs control tv rf ouput control tv r/c ouput control 04 tv rgb outputs control tv fb output control rgb gain r/csub aux clamp r/csub encoder clamp 05 aux chroma mute aux y/cvbs & chroma outputs control vcr chroma mute vcr y/cvbs & chroma outputs control 06 not used not used slow blanking aux scart slow blanking vcr scart slow blanking tv scart 07 vcr output off aux output off tv output off encod clamp disable tv clamp disable astb clamp disable vcr clamp disable aux clamp disable 08 not used not used not used not used not used not used rf mod output off cinch output off not used data must be put to "0" STV6410A 10/22
input signals (write mode) data byte tv audio output register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 00 audio output selection 3 x x x x x 0 0 0 muted x x x x x 0 0 1 aux inputs selected x x x x x 0 1 0 vcr inputs selected x x x x x 0 1 1 astb inputs selected x x x x x 1 0 0 not allowed x x x x x 1 0 1 encoder inputs selected x x x x x 1 1 0 not allowed x x x x x 1 1 1 not allowed stereo or mono mode 1 x x x x 0 x x x 0 = stereo x x x x 1 x x x 1 = mono 6db extra gain 1 x x x 0 x x x x 0 = 0db x x x 1 x x x x 1 = +6db level adjustment 3 0 0 0 x x x x x 0db adjustment 1 1 1 x x x x x -14db adjustment (-2db/step) audio cinch output register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 01 audio output selection 3 x x x x x 0 0 0 muted x x x x x 0 0 1 aux inputs selected x x x x x 0 1 0 vcr inputs selected x x x x x 0 1 1 astb inputs selected x x x x x 1 0 0 tv inputs selected x x x x x 1 0 1 encoder input selected x x x x x 1 1 0 not allowed x x x x x 1 1 1 not allowed 6db extra gain 1 x x x 0 x x x x 0 = 0db x x x 1 x x x x 1 = +6db level adjustment 3 0 0 0 x x x x x 0db adjustment 1 1 1 x x x x x -14db adjustment (-2db/step) i 2 c bus selection (continued) STV6410A 11/22
vcr and aux audio outputs selection register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 02 vcr audio output selection 3 x x x x x 0 0 0 muted x x x x x 0 0 1 aux inputs selected x x x x x 0 1 0 not allowed x x x x x 0 1 1 astb inputs selected x x x x x 1 0 0 tv inputs selected x x x x x 1 0 1 encoder inputs selected x x x x x 1 1 0 not allowed x x x x x 1 1 1 not allowed x0xxxxxx0 = stereo x1xxxxxx1 = mono aux audio output selection 3 x x 0 0 0 x x x muted x x 0 0 1 x x x not allowed x x 0 1 0 x x x vcr inputs selected x x 0 1 1 x x x astb inputs selected x x 1 0 0 x x x tv inputs selected x x 1 0 1 x x x encoder inputs selected x x 1 1 0 x x x not allowed x x 1 1 1 x x x not allowed 0xxxxxxx0 = stereo 1xxxxxxx1 = mono i 2 c bus selection (continued) STV6410A 12/22
tv video output register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 03 r/c tv output selection 1 x x x x x x x 0 red signal selected x x x x x x x 1 chroma signal selected rf output : adder control and chroma subcarrier filter selection 2 x x x x x x 0 x cvbs to rf output x x x x x x 1 x y+c to rf output x x x x x 0 x x filter not active x x x x x 1 x x filter active y/cvbs output and chroma signal selection 3 x x 0 0 0 x x x y/cvbs & chroma muted x x 0 0 1 x x x y/cvbs_aux & r/c_aux x x 0 1 0 x x x y_aux & r/c_aux x x 0 1 1 x x x y/cvbs _vcr & c_vcr x x 1 0 0 x x x cvbs_astb & chr. muted x x 1 0 1 x x x y/cvbs_enc & r/c_enc x x 1 1 0 x x x y_enc & c_enc x x 1 1 1 x x x not allowed chroma switch muting 1 x 0 x x x x x x chroma output controlled by d5-d4-d3 from register 03. x 1 x x x x x x chroma output forced to mute. 04 encoder r/csub clamp 1 x x x x x x x 0 bottom level clamp x x x x x x x 1 average level clamp aux r/csub clamp 1 x x x x x x 0 x bottom level clamp x x x x x x 1 x average level clamp rgb output gain 2 x x x x 0 0 x x +6db gain x x x x 1 1 x x +3db gain (1db/step) fb output 2 x x 0 0 x x x x fb forced to low level x x 0 1 x x x x fb forced to high level x x 1 0 x x x x fb from encoder x x 1 1 x x x x fb from aux rgb ouputs selection 2 0 0 x x x x x x muted 0 1 x x x x x x rgb_encoder selected 1 0 x x x x x x rgb_aux selected 1 1 x x x x x x not allowed i 2 c bus selection (continued) STV6410A 13/22
vcr and aux video outputs register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 05 vcr y/cvbs & chroma outputs selection 3 x x x x x 0 0 0 y/cvbs & chroma muted x x x x x 0 0 1 y/cvbs_aux & r/c_aux x x x x x 0 1 0 y_aux & r/c_aux x x x x x 0 1 1 not allowed x x x x x 1 0 0 cvbs_astb & chr. muted x x x x x 1 0 1 y/cvbs_enc & r/c_enc x x x x x 1 1 0 y_enc & c_enc x x x x x 1 1 1 y/cvbs_tv & c_tv vcr chroma output muting 1 x x x x 0 x x x chroma output controlled by d2- d1-d0 from register 05. x x x x 1 x x x chroma output forced to mute. aux video output selection 3 x 0 0 0 x x x x y/cvbs & chroma muted x 0 0 1 x x x x not allowed x 0 1 0 x x x x not allowed x 0 1 1 x x x x y/cvbs_vcr & c_vcr x 1 0 0 x x x x cvbs_astb & chr. muted x 1 0 1 x x x x y/cvbs_enc & r/c_enc x 1 1 0 x x x x y_enc & c_enc x 1 1 1 x x x x y/cvbs _tv & c_tv aux chroma output muting 1 0 x x x x x x x chroma output controlled by d6- d5-d4 from register 05. 1 x x x x x x x chroma output forced to mute. slow blanking switches register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 06 slow blanking tv scart 2 x x x x x x 0 0 input mode x x x x x x 0 1 output < 2v x x x x x x 1 0 output 16/9 format x x x x x x 1 1 output 4/3 format slow blanking vcr scart 2 x x x x 0 0 x x input mode x x x x 0 1 x x output < 2v x x x x 1 0 x x output 16/9 format x x x x 1 1 x x output 4/3 format slow blanking aux scart 2 x x 0 0 x x x x input mode x x 0 1 x x x x output < 2v x x 1 0 x x x x output 16/9 format x x 1 1 x x x x output 4/3 format i 2 c bus selection (continued) STV6410A 14/22
standby modes selection register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 07 aux clamps disabling 1 x x x x x x x 0 clamp active xxxxxxx1clamp disabled vcr clamps disabling 1 x x x x x x 0 x clamp active xxxxxx1xclamp disabled astb clamps disabling 1 x x x x x 0 x x clamp active xxxxx1xxclamp disabled tv clamps disabling 1 x x x x 0 x x x clamp active x x x x 1 x x x clamp disabled encoder clamps disabling 1 x x x 0 x x x x clamp active x x x 1 x x x x clamp disabled tv/rgb output disabling 1 x x 0 x x x x x audio & video outputs on x x 1 x x x x x audio & video outputs off aux output disabling 1 x 0 x x x x x x audio & video outputs on x 1 x x x x x x audio & video outputs off vcr output disabling 1 0 x x x x x x x audio & video outputs on 1 x x x x x x x audio & video outputs off 08 cinch output disabling 1 x x x x x x x 0 cinch output on x x x x x x x 1 cinch output off rf mod output disabling 1 x x x x x x 0 x rf mod output on x x x x x x 1 x rf mod output off output signals (read mode) data byte register address (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 slow blanking tv scart 2 x x x x x x 0 1 input < 2v x x x x x x 1 0 input 16/9 format x x x x x x 1 1 input 4/3 format slow blanking vcr scart 2 x x x x 0 1 x x input < 2v x x x x 1 0 x x input 16/9 format x x x x 1 1 x x input 4/3 format slow blanking aux scart 2 x x 0 1 x x x x input < 2v x x 1 0 x x x x input 16/9 format x x 1 1 x x x x input 4/3 format i 2 c bus selection (continued) STV6410A 15/22
power-on reset - bus register initial conditions power on reset is active when the power supply voltage is below (tbf) volts. not significant bits (x) are preset to "0" register address hex data comments d7 d6 d5 d4 d3 d2 d1 d0 00 0 0 0 0 0 0 0 0 audio tv output muted,stereo mode,0db gain, 0db gain adjustment. 01 0 0 0 0 0 0 0 0 audio cinch output muted,0 db gain, 0db gain adjustment. 02 0 0 0 0 0 0 0 0 audio vcr output muted,audio aux output muted. 03 00000000 red signal selected on r/c_tv output, cvbs to rf ouput,tv video and chroma switches muted, chroma ouput controlled by d5-d4-d3 from register 03. 04 00000000 encoder r/csub bottom level clamp,aux r/csub bottom level clamp, rgb outputs 6db gain, fb output forced to 0v, rgb outputs muted. 05 00000000 vcr video and chroma switches muted, vcr chroma output controlled by d2-d1-d0 from register 05,aux video and chroma switches muted, aux chroma output controlled by d6-d5-d4 from register 05. 06 00000000 tv scart slow blanking input mode,vcr scart slow blanking input mode, aux scart slow blanking input mode. 07 00000000 aux, vcr, astb, tv, encoder clamps active ; tv/rgb, aux, vcr outputs on. 08 0 0 0 0 0 0 0 0 cinch, rf mod outputs on. i 2 c bus selection (continued) STV6410A 16/22
v cc 8v v cc 8v 15k w tri 2v + v d protected pad 6410a-03.eps figure 1 : bottom clamped video inputs (pins 24, 26, 30, 32 ,34, 36, 38, 44, 46, 50, 52) v cc 8v tri 3v protected pad i b v cc 8v 25k w 25k w 6410a-04.eps figure 2 : average clamped video inputs (pins 40, 48, 54) input/output groups v cc 8v v cc /2 protected pad i b 50k w 6410a-05.eps figure 3 : audio inputs (5 stereo) (pins 35-37, 39-41, 47-49, 53-56) v cc 8v protected pad 60 w 6410a-06.eps figure 4 : audio outputs (4 stereo +1) (pins 58, 59, 60-62, 4-6, 8) v cc 8v protected pad 100 w 1k w v cc 8v 6410a-07.eps figure 5 : trap filter (pin 11) v cc 8v protected pad 50 w v cc 8v 5k w 5k w 6410a-08.eps figure 6 : video outputs (pins 61, 63, 1, 3, 5, 7, 9, 13,15) STV6410A 17/22
v cc 8v protected pad v cc 8v 40k w 40k w i b i b 6410a-09.eps figure 7 : v ref external capacitor (pin 51) v cc 12v protected pad 80k w 1k w 25k w 80k w v cc 12v 6410a-10.eps figure 8 : slow blanking (pins 25, 27, 31) input/output groups (continued) v cc 8v protected pad 6410a-11.eps figure 9 : input fast blanking (pins 18, 19) v cc 8v protected pad 25k w 1k w 50 w 6410a-12.eps figure 10 : output fast blanking (pin 17)) v cc 8v protected pad 10k w 6410a-13.eps figure 11 : i 2 c bus (add) (pin 20) v cc 8v protected pad 10k w 6410a-14.eps figure 12 : i 2 c bus (scl) (pin 21) STV6410A 18/22
v cc 8v protected pad 10k w acknowledge 6410a-15.eps figure 13 : i 2 c bus (sda) (pin 22) input/output groups (continued) rf mod r/c g b fast blank cvbs/y c audio l audio r audio l audio r y audio l audio r cvbs r/c g b fast blank cvbs/y audio l audio r y cvbs/y audio l audio r c slow blank cinch output scart2 aux analog stb encoder r/c g b fast blank cvbs/y audio l audio r cvbs/y audio l audio r slow blank scart1 tv cvbs audio l+r cvbs/y audio l audio r audio l audio r slow blank scart3 vcr c cvbs/y c STV6410A c r audio switches slow blank, i/o control r, g, b, fb switches cvbs/y switches chroma switches 6410a-16.eps application diagram STV6410A 19/22
application note 1 - audio part 1.a - inputs the audio inputs are designed to follow sources up to (at least) 2v rms (that is around 6v pp ) with an expected dc level of v cc /2 (4v typ.). thats why the device is providing this dc polarization. that means that in most of the cases the inputs are ac coupled via chemical capacitors. the recom- mended values are 1 m f, 2 . 2 m f or 4.7 m f (internal polar. is made via a 50k w resistor). i want to point out that the internal polarization is filtered by an external capacitor (on pin called v ref ). this ca- pacitor contribute to good performance of the de- vice. its value should be 47 m f or more (coupled with an 47nf hf cap. for internal video references). 220 w 4.7 m f 12k w audio in STV6410A l/r audio 6410a-17.eps figure 14 : audio inputs nb: in some particular cases (loopback from out- puts to inputs) the ac coupling capacitor can be removed... but some small offsets in the audio chain can cause some noise while switching from one input to another. 1.b - outputs audio output buffers are able to provide more than 2.1v rms (around 6v pp ) on a typical load of 10k w (in fact a 2k w load is acceptable). the dc level is once more v cc /2 for best dynamic performance. usually some ac coupling capacitors are used at the outputs. to drive some typical 10k w loads, it is normal to use capacitors with value 5 to 10 times the value of the input capacitors. that gives a value between 4.7 m f and 47 m f. moreover it can be a good idea to insert resistors (220 w or 470 w ) in the audio outputs. that will provide a protection for output stages. no external drivers or buffers are needed in typical use of the device. 2 - video part 2.a - inputs video inputs need to be ac coupled. but only some small capacitor values are requested thanks to the internal clamps provided by these devices. usually some 100nf hf capacitors (47nf to 220nf) are enough to provide good performances on y, cvbs,rgb and c inputs. chrominance inputs : - average clamp - that means that the dc is measured as the average value of the input signal and set to an internal reference (close to 3v). the dynamic allowed is more than 1.5v. rgb, y, cvbs inputs : - bottom sync top clamp - that means that the dc level is measured at the lowest value of the input signal and set to an internal reference (close to 2v). the dynamic al- lowed is more than 1.5v. 470 w 4.7 m f STV6410A l/r audio audio out 6410a-18.eps figure 15 : audio outputs 220 w 100nf 75 w video in STV6410A y/c/cvbs/rgb 6410a-19.eps figure 16 : video inputs 2.b - outputs on these devices the video outputs are not able to drive 150 w . that means that external buffers (one simple npn-transistor per output) are needed. to reduce the external components, the output dc level have been chosen to allow a direct drive of the base of the output follower (npn). the emitters of the npns will be polarized to ground via 1k w resis- tors (more or less) and will drive the outputs through some 75 w resistors. do not forget to bufferize your favourite uhf modulator video input... chrominance outputs have a dc of 2.3v (it is an average value) and luminance type output have a dc of 1.3v (it is a bottom value). (4.7k w ) 1k w 75 w STV6410A video out video 6410a-20.eps figure 17 : video (and fast blanking) outputs STV6410A 20/22
2.c - fast blanking fast blanking signal is used to make an equipment consider its rgb inputs for full-screen display or fast insertion (osd, etc.). the output of such signal is exactly managed in the same way as rgb (that is important for levels and delays). the input is dc coupled (insert a few hundreds ohms resistors for external input). 2.d - slow blanking slow blanking signal is used to make an equipment consider an external input (e.g. c vbs and sound). the input/output of such signal is very simple, dc coupled (insert a few hundreds ohms resistors for external i/o). notice that this function is requesting a 12v power supply (on pin v cc12 ). this pin can be left open (not pulled down) if this function is not used. 3 - i 2 c bus 3.a - address you can choose the address of the device by setting the pin add to ground or to v dd . the former selects 94h and the latter selects 96h. these val- ues correspond to the writeable (or control) regis- ters. change the lowest bits to 1 (that gives 95h and 97h) to read the readable register of the device. one device will answer (acknowledge) to its both addresses 94h and 95h or 96h and 97h. 3.b - write mode this mode is used to control the device, to select switches positions, gains, etc. send a start condition, the address of the device, the address of the register (its number), and the data to put in it. at this point you can send a stop or send the data of the following registers (that is what we call auto-increment). 3.c - read mode this mode is used to read some data such as slow-blanking input signals. send a start condition, the address of the device (+1) and then send one byte clock to read the unique data register. application note (continued) n.b.: do not forget your favourite esd protections for i/o signals of plugs. STV6410A 21/22
64 49 17 32 1 16 48 33 e c a1 a2 a d3 d1 d e3 e1 e l k l1 0,25 mm .010 inch gage plane 0,10 mm .004 inch seating plane b pm-5w.eps package mechanical data 64 pins - full plastic quad flat pack (tqfp) dimensions millimeters inches min. typ. max. min. typ. max. a 1.60 0.063 a1 0.05 0.15 0.002 0.006 a2 1.35 1.40 1.45 0.053 0.055 0.057 b 0.17 0.22 0.27 0.007 0.009 0.011 c 0.09 0.20 0.004 0.008 d 12.00 0.472 d1 10.00 0.394 d3 7.50 0.295 e 0.50 0.0197 e 12.00 0.472 e1 10.00 1 0.394 e3 7.50 0.295 l 0.45 0.60 0.75 0.018 0.024 0.030 l1 1.00 0.039 k0 o (min.), 7 o (max.) 5w.tbl information furnished is believed to be accurate and reliable. however, stmicroelectronics 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 f rom its use. no licence is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or s ystems without express written approval of stmicroelectronics. the st logo is a registered trademark of stmicroelectronics ? 1998 stmicroelectronics - all rights reserved purchase of i 2 c components of stmicroelectronics, 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. stmicroelectronics group of companies australia - brazil - canada - china - france - germany - italy - japan - korea - malaysia - malta - mexico - morocco - the neth erlands singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. http://www.st.com STV6410A 22/22

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