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september 2009 doc id 9754 rev 2 1/31 31 stv6412a audio/video switch matrix features i 2 c bus control standby mode with interrupt signal output video section ? 4 cvbs inputs, 3 cvbs outputs (one with selectable chroma trap filter) ? 3 y/c inputs, 2 y/c outputs ? 6 db gain on all cvbs/y and c outputs ? integrated 150 buffers ? 1 y/c adder ? 2 rgb/fb inputs, 1 tri-state rgb/fb output with 6 db adjustable gain (from +3db to +9db) ? video muting on all outputs ? 2 slow blanking inputs/outputs ? sync bottom clamp on all cvbs/y and rgb inputs, average clamp on c inputs ? bandwidth: 15 mhz ? crosstalk: 50 db minimum audio section ? 4 stereo inputs, 3 stereo outputs ? 1 mono-sound output ? stereo-to-mono sound capability ? 0/6/9 db selectable gain on one stereo input ? full range volume control with soft control ? audio muting on all outputs description the stv6412a is a highly integrated i 2 c bus- controlled 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 two scart set-top box design. lqfp64l (14 x 14 x 1.4 mm) (low-profile quad flat package) order code : STV6412ADT www.st.com obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
contents stv6412a 2/31 doc id 9754 rev 2 contents 1 general overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 latch up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 audio section characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.6 video section characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.7 chroma section characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.8 blanking section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.9 i2c bus characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3 i2c bus selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.1 i2c bus addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.2 power-on reset ? bus register initial condit ions . . . . . . . . . . . . . . . . . . . 21 4 input/output groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5 application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a general overview doc id 9754 rev 2 3/31 1 general overview 1.1 pin connections figure 1. pinout dagram fbout_tv fbin_vcr fbin_enc c_gate vdd add scl sda gnd it_out slb_tv r/cin_vcr slb_vcr gin_vcr vcc12 bin_vcr lout_tv filter aout_rf vout_rf vccb 5 bout_tv vccb 4 gout_tv gndb r/cout_tv vccb 3 y/cvbsout_tv vccb 2 cout_vcr vccb 1 y/cvbsout_vcr rout_tv vccao lout_vcr rout_vcr lout_cinch rout_cinch nc gnda vcca rin_tv lin_tv cvbsin_tv rin_vcr lin_vcr y/cvbsin_vcr gnd deca nc bin_enc lin_enc gin_enc rin_enc r/cin_enc lin_aux cin_enc rin_aux yin_enc gnd y/cvbsin_enc decv cvbsin_aux vcc table 1. pin description pin no. symbol description 1v cc +5 v supply 2 cvbsin_aux cvbs input from auxiliary 3 decv video decoupling capacitor 4 y/cvbsin_enc y/cvbs input from encoder 5 gnd ground 6 yin_enc y input from encoder 7 rin_aux audio right input from auxiliary 8 cin_enc chroma input from encoder 9 lin_aux audio left, input from auxiliary 10 r/cin_enc red/chrom a input from encoder 11 rin_enc audio right, input from encoder 12 gin_enc green input from encoder 13 lin_enc audio left, input from encoder obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
general overview stv6412a 4/31 doc id 9754 rev 2 14 bin_enc blue input from encoder 15 nc not connected 16 deca audio decoupling capacitor 17 gnd ground 18 y/cvbsin_vcr y/cvbs input from vcr scart 19 lin_vcr audio left, input from vcr scart 20 rin_vcr audio right, input from vcr scart 21 cvbsin_tv cvbs input from tv scart 22 lin_tv audio left, input from tv scart 23 rin_tv audio right, input from tv scart 24 v cca audio supply voltage - or - audio supply decoupling 25 gnda audio ground 26 nc not connected 27 rout_cinch audio right output to cinch 28 lout_cinch audio left output to cinch 29 rout_vcr audio right output to vcr scart 30 lout_vcr audio left output to vcr scart 31 v ccao audio output supply voltage - or - main audio supply voltage 32 rout_tv audio right output to tv scart 33 lout_tv audio left output to tv scart 34 filter chroma trap filter 35 aout_rf audio (l+r) output to rf modulator 36 vout_rf cvbs video output to rf modulator 37 v ccb5 video output buffer supply pin 38 bout_tv blue output to tv scart 39 v ccb4 video output buffer supply pin 40 gout_tv green output to tv scart 41 gndb video buffer ground 42 r/cout_tv red/chroma output to tv scart 43 v ccb3 video output buffer supply pin 44 y/cvbsout_tv y/cvbs output to tv scart 45 v ccb2 video output buffer supply pin 46 cout_vcr chroma output to vcr scart 47 v ccb1 video output buffer supply pin 48 y/cvbsout_vcr y/cvbs output to vcr scart table 1. pin description (continued) pin no. symbol description obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a general overview doc id 9754 rev 2 5/31 49 fbout_tv fast blanking output to tv scart 50 fbin_vcr fast blanking input from vcr scart 51 fbin_enc fast blanking input from encoder 52 c_gate external mos command for c_vcr bidirectional mode 53 v dd +5 v i 2 c supply 54 add i 2 c address selection 55 scl i 2 c bus clock 56 sda i 2 c bus data 57 gnd ground digital 58 it_out interrupt output 59 slb_tv slow blanking input/output from tv scart 60 r/cin_vcr red input (or c input) from vcr scart 61 slb_vcr slow blanking i nput/output from vcr scart 62 gin_vcr green input from vcr scart 63 v cc12 +12 v supply 64 bin_vcr blue input from vcr scart table 1. pin description (continued) pin no. symbol description obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
general overview stv6412a 6/31 doc id 9754 rev 2 1.2 block diagrams figure 2. stv6412a block diagram 3 to 9 db 3 to 9 db 3 to 9 db 6 db 6 db 6 db c switch y/cvbs switch 6 db c switch rgb switch y/cvbs switch vcr switch tv switch i2c bus decoder -62 db -62 db 0/6 db 0/6 db 0/6 db 0/6 db 0/6/9 db 0/6/9 db fb switch 0/6 db fbout_tv bout_tv gout_tv r/cout_tv vout_rf slb_tv slb_vcr y/cvbsout_vcr lout_vcr rout_vcr rout_cinch aout_rf rout_tv add sda scl lin_aux lin_enc lin_tv rin_aux rin_enc rin_tv lin _vcr r in_vcr fbin_enc fbin_vcr bin_enc bin_vcr gin_enc gin_vcr r/cin_enc r/cin_vcr cin_enc cvbsin_aux y/cvbsin_vcr yin_enc y/cvbsin_enc cvbsin_tv filter y/cvbsout_tv c_gate cout_vcr it_out lout_cinch lout_tv fbin_enc fbin_vcr bin_enc bin_vcr gin_enc gin_vcr r/cin_enc r/cin_vcr r/cin_vcr r/cin_enc cin_enc cvbsin_aux y/cvbsin_vcr yin_enc y/cvbsin_enc cvbsin_aux cvbsin_tv y_enc y/cvbsin_enc cin_enc r/cin_enc lin_aux lin_enc lin_tv rin_aux rin_enc rin_tv mute lin_enc lin_tv rin_aux rin_enc rin_tv mute lin_vcr rin_vcr lin_aux mute mute mute mute mute mute mute mute slow blank monitor interrupt signal trap stereo/mono stereo/mono obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a general overview doc id 9754 rev 2 7/31 figure 3. functional block diagram aud io r aux cvbs aud io l micro interr upt rf mo d r/c g b fast blank cvbs/y c audio l audio r audio l audio r y r/c g b fast blank cvbs/y audio l aud io r cvbs/y audio l aud io r c slow blank scart2 vcr r/c g b fast blank cvbs audio l audio r cvbs/y audio l aud io r slow blank scart1 tv cvbs aud io l+r stv6412a audio sw itches slow blank, i/o contro l r, g, b, fb sw itches cvbs/y sw itches chroma sw itches cinch output encoder obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
electrical characteristics stv6412a 8/31 doc id 9754 rev 2 2 electrical characteristics 2.1 absolute maximum ratings 2.2 thermal data 2.3 latch up at an ambient temperature of 25 c , all pins meet the following specifications: i trigger = 200 ma or i trigger = 200 ma. pin 58 (it_out) does not meet this specification and the trigger current must be limited to -100 ma. 2.4 recommended operating conditions t amb =25c, v ccao = 12 v, v cc = 5 v, v cc12 = 12 v, v dd = 5 v r ga = 600 , r louta = 10 k , r gv = 50 , r loutv = 150 , unless otherwise specified. symbol parameter value unit v cc12 supply voltage for: - slow blanking sections 13.2 v v ccao - audio drivers 13.2 v v cca - internal digital audio parts 10 v v dd - digital parts 6 v v cc , v ccbi - video sections 6 v v i voltage at pin i to gnd: - audio pins 0, v cca v - video pins 0, v cc or v ccbi v - bus pins 0, 5.5 v - slow blanking pins 0, v cc12 v v esd maximum esd voltage allowed. 100 pf capacitor discharged through 1.5 k serial resistor (human body model) 4 kv t oper operating ambient temperature 0, +70 c t stg storage temperature -20, +150 c symbol parameter value unit r th(j-a) junction-ambient thermal resistance (maximum) 48 c/w obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a electrical characteristics doc id 9754 rev 2 9/31 2.5 audio section characteristics t amb = 25c, v ccao = 12 v, v cc = 5 v, v cc12 = 12 v, v dd = 5 v r ga = 600 , r louta = 10 k , r gv = 50 , r loutv = 150 , unless otherwise specified. table 2. supply voltages symbol parameter test condition min. typ. max. unit v dd digital supply voltage 4.75 5 5.25 v v ccao audio operating supply voltage - decoupling capacitor on v cca - connected to v cca 11.2 8.5 12 9 12.8 9.5 v v v cc video operating supply voltage 4.75 5 5.25 v v cc12 slow blanking control supply voltage 11.2 12 12.8 v table 3. active mode (all channels on) symbol parameter test condition min. typ. max. unit i dd digital supply current v dd = 5 v 4.5 10 ma i cca audio supply current v ccao = 12 v, no load 9 15 ma i ccv total video supply current (v cc +v ccb1 +v ccb2 +v ccb3 +v ccb4 +v ccb5 ) v cc = 5 v, no load 43 60 ma i cc12 12 v supply current v cc12 = 12 v slb input mode slb output mode, no load 0 2.5 1 4 ma table 4. standby mode (all channels off) symbol parameter test condition min. typ. max. unit i dd digital supply current v dd = 5 v 4.5 10 ma i ccastd audio supply current v cca0 = 12 v, no load 3 ma i ccvstd total video supply current v cc = 5 v 1 ma table 5. audio section characteristics symbol parameter test condition min . typ. max . unit svr100 supply voltage rejection v ripple = 500m v rms at f = 100 hz, gain= 0 db, deca filter cap = 47 f deca filter cap = 220 f 60 70 80 db db svr1k supply voltage rejection v ripple = 500m v rms at f = 1 khz, gain = 0 db 70 80 db v indc input dc level v cca = 9 v v cc a/2 v v inac input signal amplitude 2 v rms r in input resistance 30 50 k obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
electrical characteristics stv6412a 10/31 doc id 9754 rev 2 2.6 video section characteristics t amb =25c, v ccao = 12 v, v cc = 5 v, v cc12 = 12 v, v dd = 5 v r ga = 600 , r louta = 10 k , r gv = 50 , r loutv = 150 , unless otherwise specified. r inmatch input resistance matching 2 10 % f range bandwidth -3 db, 0.5 v rms, r load = 10 k , gain = 0db 50 khz flatness spread of gain in audio band -0.5 v rms, 20 hz to 20 khz, gain = 0 db 0.5 db cs channel separation, from audio inputs between l & r of tv outputs v in =0.5v rms, f = 1 khz, on one input, r load = 10 k , gain = 0 db 80 70 90 74 db db ci channel isolation from video inputs v in = 1 v pp, f = 15 khz, on one point 85 db v out output dc level v cca = 9 v v cc a/2 v v off dc offset change switching between inputs 1 15 mv r out output resistance 60 120 w phd phase ddifference f = 1 khz, 1 v rms input on each input channel 3 deg. asn s/n ratio f = 1 khz, 1 v rms input (gain = 0db) weighted ccir 468-4 quasi peak 70 db eni equivalent rms input voltage noise bw = 20 hz, 20 khz flat, gain = 0db 5v g0 0 db gain 0.5 v rms, r load = 10 k , gain = 0db -0.5 +0.5 db g step gain step -62 db to +6 db ( see figure 2 )2db g match1 gain matching between different inputs of one output v in = 0.5 v rms, 1khz, gain = 0 db -0.5 0.5 db g match2 gain matching between left/right outputs of one input channel v in = 0.5 v rms, 1 khz, gain = 0 db -0.5 0.5 db thd0 thd6 thd9 total harmonic distortion enc input at 0 db enc input at 6 db enc input at 9 db v out = 0.5 v rms, 1khz, lpf @ 80 khz 0.01 0.01 0.01 0.1 0.1 0.1 % % % v cl output clipping level thd = 0.2%, 1 khz 2.1 2.3 v rms r l output load resistance v in = 1 v rms, thd = 0.3%, gain = 0 db 22.25 k mute mute suppression v in = 0.5 v rms, on one point -90 db table 5. audio section characteristics (continued) symbol parameter test condition min . typ. max . unit obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a electrical characteristics doc id 9754 rev 2 11/31 note: 1 s/n = 20 log (v out black to white = 0.7 v pp / v noise (mv rms ) weighted ccir 567). table 6. video section characteristics symbol parameter test condition min. typ. max. unit v dcin dc input level bottom synch pulse 2 v i clamp clamping current at vdcin -400 mv 1 2 ma i leak input leakage current vin = vdcin +1 v 1 10 a c in input capacitance 2 pf v in max input signal vcc = 5 v 1.5 v pp dyn dynamic output signal vcc = 5 v 3 v pp bw bandwidth at -3 db y/cvbs rgb y/c mixer (on vout-rf) vin = 1 vpp vin = 1 vpp vin = 1 vpp, vinc = muted 12 12 8 15 15 10 mhz mhz mhz flatness spread of gain in video band (15 khz - 5 mhz) y/cvbs rgb y/c mixer (on vout-rf) vin = 1 vpp vin = 1 vpp vin = 1 vpp, vinc = muted +/-0.5 +/-0.5 +/-1.5 db db db cti crosstalk isolatio n between input channel vin = 1 vpp at f = 4.43 mhz, on one point 60 db cto crosstalk isolatio n between output channel vin = 1 vpp at f = 4.43 mhz, on one point, rload = 150 50 db r out output resistance 5 10 g rgb gain at rgb outputs v in = 1 v pp, gain set to 6 db 5.5 6 6.5 db g rgbm gain matching between r, g, b v in = 1 v pp, gain set to 6 db -0.3 0 0.3 db g rgbste p step of gain 3 db to 6 db 0.75 1 1.25 db g ycvbs gain on y,/cvbs channels v in = 1 v pp 5.5 6 6.5 db g ycvbsm gain matching between y, cvbs inputs v in = 1 v pp -0.5 0 0.5 db dc out dc output voltage bottom sync pulse 0.6 v dc out rf rf output voltage bottom sync pulse 1 v dphi differential phase v in = 1 v pp at f = 4.43 mhz 1 5 deg. dg differential gain v in = 1 v pp at f = 4.43 mhz 1 5 % mute mute suppression v in = 1 v pp at f = 5 mhz on one point -55 db lnl luminance non-linerarity 0.3 3 % vsn video s/n ratio refer to note 1 65 db obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
electrical characteristics stv6412a 12/31 doc id 9754 rev 2 2.7 chroma section characteristics t amb =25c, v ccao = 12 v, v cc = 5 v, v cc12 = 12 v, v dd = 5 v r ga = 600 , r louta = 10 k , r gv = 50 , r loutv = 150 , unless otherwise specified. 2.8 blanking section t amb =25c, v ccao = 12 v, v cc = 5 v, v cc12 = 12 v, v dd = 5 v r ga = 600 , r louta = 10 k , r gv = 50 , r loutv = 150 , unless otherwise specified. table 7. chroma section characteristics symbol parameter test conditions min. typ. max. unit v dcin dc input level 3v r in input resistance 30 50 k c in input capacitance 2pf v in max input signal 1.5 v pp dyn dynamic output signal 3v pp dc out dc output vcr voltage 2.2 v cbw chroma bandwidth c in = 1 v pp at -3 db 10 mhz cti crosstalk isolation between input channel v in = 1 v pp at f = 4.43 mhz, on one input 55 db cto crosstalk isolation between output channel v in = 1 v pp at f = 4.43 mhz, on one input, r load = 150 50 db r out output resistance 510w g outc gain at outc v in = 1 v pp 5.5 6 6.5 db g cm gain matching between c inputs v in = 1 v pp -0.5 0 0.5 db mute mute suppression v in = 1 v pp at f = 4.43 mhz , on one input -55 db ctoydel chroma to luma delay, source y/c pin other than vout_rf, v pp @ 4.43 mhz, 20 ns ctoydel chroma to luma delay, source y/c pin vout_rf 20 ns table 8. slow blanking section symbol parameter test condition min. typ. max. unit input mode 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 a output mode slblow output low level (int. tv) 0 0.02 1.5 v obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a electrical characteristics doc id 9754 rev 2 13/31 note: 1 the interrupt is forced to a low level when a change is detected on slow blanking inputs. it can be used in standby mode to wake up the microprocessor. it is released when the i 2 c bus register is read. slbmed output medium level (ext. 16/9) 5 5.75 6.5 v slbhigh output high level (ext. 4/3) 10 11 12 v table 8. slow blanking section (continued) symbol parameter test condition min. typ. max. unit table 9. fast blanking section symbol parameter test condition min. typ. max. unit input mode fblow/high input low/high level threshold 0.4 0.7 0.9 v i in input current 2 10 a output mode fb low output low level r load = 150 0.5 v fb high output high level 3.0 3.4 3.8 v fb del fast blanking rgb delay at 50% on digital rgb transients, at 2 v on fb rise transient, at 1 v on fb fall, c load = 10pf maximum 15 ns fb trans fb transitions at fb output rise time fall time c load = 10 pf maximum between 10% and 90% between 90% and 10% 10 10 ns ns table 10. c_gate function output symbol parameter test condition min. typ. max. unit c_gate-h pull-up resistor value to v ccb1 20 k c_gate-l output low level i in = 0 ma i in = 1 ma 0.3 0.7 v v interrupt output (refer to note 1 ) symbol parameter test condition min. typ. max. unit it-leak high level leakage external pull-up to 5 v 10 a it-low output low level (active) i in = 0 ma i in = 1 ma 0.3 0.7 v v table 11. address selection input symbol parameter test condition min. typ. max. unit addsel_l address selection low level 0 0.2 v addsel_h address selection high level 2.5 v dd v i leak leakage current 10 a obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
electrical characteristics stv6412a 14/31 doc id 9754 rev 2 2.9 i2c bus characteristics t amb = 25c, v ccao = 12 v, v cc = 5 v, v cc12 = 12 v, v dd = 5 v r ga = 600 , r louta = 10k , r gv = 50 , r loutv = 150 , unless otherwise specified. note: 1 the device can also operate at 400 khz and is capable of interfacing with +3.3 v or + 5 v logic levels. table 12. i2c bus characteristics symbol parameter test condition min. typ. max. unit scl v il low level input voltage -0.3 1.5 v v ih high level input voltage 2.3 5.5 v i li input leakage current v in = 0 to 5.5 v -10 0 10 a sda v il low level input voltage -0.3 1.5 v v ih high level input voltage 2.3 5.5 v i li input leakage current v in = 0 to 5.5 v -10 0 10 a c i input capacitance 10 pf t r input rise time 1.5v to 3v 1s t f input fall time 3 v to 1.5 v 300 ns v ol low level output voltage i ol = 3 ma 0.4 v t f output fall time 3 v to 1.5 v 250 ns c l load capacitance 400 pf timing t low clock low period 4.7 s t high clock high period 4 s t su,dat data setup time 250 ns t hd,dat data hold time 0 340 ns t su,sto setup time from clock high to stop 4 s t buf start setup time following a stop 4.7 s t hd,sta start hold time 4 s t su,sta start setup time following clock low to high transition 4.7 s obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a electrical characteristics doc id 9754 rev 2 15/31 figure 4. i 2 c bus timing (start, stop) obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
i2c bus selection stv6412a 16/31 doc id 9754 rev 2 3 i 2 c bus selection data transfers follow the usual i 2 c format; that is, after the start condition (s), a 7-bit slave address is sent, followed by an eight-bit data dire ction bit (w). an 8-bit sub-address is sent to select a register, followed by an 8-bit data word to be included in the register. the ic?s i 2 c bus decoder enables the automatic incrementation mode in write mode. string format write only mode (s = start condition, p = stop condition, a = acknowledge) read only mode slave address auto increment mode 3.1 i 2 c bus addresses write address: 1001 01x0, read address: 1001 01x1 selection pin grounded address: x = 0, write address = 94(hex), read address = 95(hex) selection pin to supply address: x = 1, write address = 96(hex), read address = 97(hex) s slave address 0 a sub-address a data a p s slave address 1 a data a p addressa6a5a4a3a2a1a0 value100101x s slave address 0 a sub-address a data0 a data1 a .... data n ap sub-address sub-address +1 sub-address + n table 13. input signal summary (write mode) reg addr (hex) data d7 d6 d5 d4 d3 d2 d1 d0 audio 00 tv stereo mono tv 0/6 db tv volume-62 db to 0 db - 2 db steps soft volume mode 01 vcr stereo mono not used (see note 1 ) vcr audio switch control cinch audio gain tv/cinch audio switch control obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a i2c bus selection doc id 9754 rev 2 17/31 note: 1 unused data must be set to ?0?. reg addr (hex) data d7 d6 d5 d4 d3 d2 d1 d0 video 02 vcr chroma muted vcr video and chroma switch control tv chroma muted tv video and chroma switch control 03 rgb and fb tri-state rgb gain rgb switch control fast blanking mode/input selection miscellaneous 04 it enable slb mode not used (see note 1 ) vcr-c output control vcr-c gate control rf trap filter control rf adder control tv r or c output selection 05 vcr slow blanking tv slow blanking enc audio input gain 0/6/9 db vcr r/c sub clamp enc r/c sub clamp stb-by 06 rf outputs tv outputs cinch outputs vcr outputs aux inputs tv inputs vcr inputs enc inputs table 13. input signal summary (write mode) (continued) table 14. tv audio output reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 00 soft volume change 1x x x x x x x x x x x x x x 0 1 active disabled level adjustment 5x x x x 0 1 0 1 0 1 0 1 0 1 x x 0db -62 db (-2 db/step) 6 db extra gain 1x x 0 1 x x x x x x x x x x x x 0db +6 db tv stereo or mono mode 10 1 x x x x x x x x x x x x x x 0 = stereo 1 = mono obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
i2c bus selection stv6412a 18/31 doc id 9754 rev 2 table 15. audio selection & vcr audio output reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 01 tv & cinch audio output selection 3x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 muted encoder l/r selected vcr l/r selected aux l/r selected tv l/r selected not allowed not allowed not allowed cinch audio gain 1x x x x x x x x 0 1 x x x x x x 0db follow tv gain vcr audio output selection 2x x x x x x x x 0 0 1 1 0 1 0 1 x x x x x x x x x x x x x x x x muted encoder l/r selected tv l/r selected aux l/r selected vcr stereo or mono mode 10 1 x x x x x x x x x x x x x x 0 = stereo 1 = mono table 16. tv & vcr video selection reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 02 tv video output selection 3x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 y/cvbs muted & chroma muted y/cvbs_enc & r/c_enc y_enc & c_enc y/cvbs_vcr & r/c_vcr cvbs_aux & chroma muted not allowed not allowed not allowed tv chroma output control 1x x x x x x x x 0 1 x x x x x x chroma defined by d2d1d0 chroma force to mute vcr video output selection 3x x x x x x x x 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x y/cvbs muted & chroma muted y/cvbs_enc & r/c_enc y_enc & c_enc cvbs_tv & chroma muted cvbs_aux & chroma muted not allowed not allowed not allowed vcr chroma output control 10 1 x x x x x x x x x x x x x x chroma defined by d6d5d4 chroma force to mute obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a i2c bus selection doc id 9754 rev 2 19/31 table 17. rgb & fast blanking outputs reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 03 fast blanking control 2 x x x x x x x x x x x x x x x x x x x x x x x x 0 0 1 1 0 1 0 1 fb forced to low level fb forced to high level fb from encoder fb from vcr rgb selection 2 x x x x x x x x x x x x x x x x 0 0 1 1 0 1 0 1 x x x x x x x x muted rgb_enc selected rgb_vcr selected not allowed rgb gain 2 x x x x x x x x 0 0 1 1 0 1 0 1 x x x x x x x x x x x x x x x x +6 db gain +5 db gain +4 db gain +3 db gain 1x x 0 1 x x x x x x x x x x x x +0 db extra gain +3 db for weak input signals rgb and fast blanking control 10 1 x x x x x x x x x x x x x x rgb and fb outputs high impedance state rgb and fb outputs active table 18. rf & miscellaneous control reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 04 r/c tv output selection 1 x x x x x x x x x x x x x x 0 1 red signal selected chroma signal selected rf output: adder control and chroma sub-carrier filter selection 2x x x x x x x x x x x x x x x x x x x x x x 0 1 0 1 x x x x x x cvbs to rf output y + c to rf output filter not active filter active c_gate output control 1x x x x x x x x 0 1 x x x x x x high level low level c_vcr output control 1x x x x x x 0 1 x x x x x x x x tri-state mode (high impedance) active slow blanking mode 1x x 0 1 x x x x x x x x x x x x normal mode slb tv is driven by slb vcr it enable 10 1 x x x x x x x x x x x x x x no interrupt flag it enable obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
i2c bus selection stv6412a 20/31 doc id 9754 rev 2 l table 19. slow blanking & inputs contro reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 05 encoder r/csub clamp 1x x x x x x x x x x x x x x 0 1 bottom level clamp average level clamp vcr r/csub clamp 1x x x x x x x x x x x x 0 1 x x bottom level clamp average level clamp encoder input level adjustment 2x x x x x x x x x x x x 0 0 1 0 1 0 x x x x x x 0 db for normal audio inputs +6 db for weak audio inputs +9 db for weak audio inputs slow blanking tv scart 2x x x x x x x x 0 0 1 1 0 1 0 1 x x x x x x x x x x x x x x x x input mode only output < 2 v output 16/9 format output 4/3 format slow blanking vcr scart 20 0 1 1 0 1 0 1 x x x x x x x x x x x x x x x x x x x x x x x x input mode only output < 2 v output 16/9 format output 4/3 format table 20. standby modes reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 06 enc inputs 1x x x x x x x x x x x x x x 0 1 inputs active inputs disabled vcr inputs 1x x x x x x x x x x x x 0 1 x x inputs active inputs disabled tv inputs 1x x x x x x x x x x 0 1 x x x x inputs active inputs disabled aux inputs 1x x x x x x x x 0 1 x x x x x x inputs active inputs disabled vcr outputs 1x x x x x x 0 1 x x x x x x x x audio & video outputs on audio & video outputs off cinch outputs 1x x x x 0 1 x x x x x x x x x x audio & video outputs on audio & video outputs off tv outputs 1x x 0 1 x x x x x x x x x x x x audio & video outputs on audio & video outputs off rfmod outputs 10 1 x x x x x x x x x x x x x x audio & video outputs on audio & video outputs off full stop 11111111 only i 2 c bus and slow blanking detection parts are supplied. obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a i2c bus selection doc id 9754 rev 2 21/31 note: 1 the interrupt flag will be cleared when this register is read. to prepare for a new interrupt, a ?1? must be re-written in the it enable bit (reg. 04, d7). 3.2 power-on reset ? bus re gister initial conditions power-on reset is active when the supply v dd is less than 3.5 volts. non-significant bits (x) are pre-set to ?0? . table 21. output signals (read mode) reg. addr (hex) description bits data comments d7 d6 d5 d4 d3 d2 d1 d0 slow blanking tv scart 2x x x x x x x x x x x x x x x x x x 0 1 1 1 0 1 input <2 v input 16/9 format input 4/3 format slow blanking vcr scart 2x x x x x x x x x x x x 0 1 1 1 0 1 x x x x x x input <2 v input 16/9 format input 4/3 format interrupt flag 1x x x x x x 0 1 x x x x x x x x no change since read one change has been detected (refer to note 1 ) reg. addr (hex) data comments d7 d6 d5 d4 d3 d2 d1 d0 00 00000000 audio tv and cinch outputs are in stereo mode, 0 db gain adjustment. 01 00000000 tv, cinch and vcr audio outputs are muted. vcr output is in stereo mode. 02 00000000vcr, tv and rfmod video outputs are muted. 03 00000000 fast blanking is forced to ?0?. rgb outputs are muted and in high impedance. 04 00000000c_gate is high. c_vcr is high im pedance. 05 00000000 encoder and vcr r/csub bottom level clamp, rgb outputs 6 db gain, and slow blanking parts are in read mode. 06 00000000all internal blocks are on. obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
i2c bus selection stv6412a 22/31 doc id 9754 rev 2 figure 5. volume control characteristics step number 0 -36 -62 db 18 31 0.5 db + 2 db - 0.5 db 0.5 db obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a input/o utput groups doc id 9754 rev 2 23/31 4 input/output groups figure 6. bottom clamped video inputs (pins 2, 4, 6, 12, 14, 18, 21, 62, and 64) figure 7. r/c clamped video inputs (pins 10 and 60 v cc 5v v cc 5v 2v + v d protected ppad 15 k tri r/c inputs may be configured either as a bottom clamped input or as an average clamped input. in either case, the simplified input schematic is very close to one of the graphics shown above. figure 8. fast blanking inputs (pins 50, 51) figure 9. average clamped video inputs (pin 8) v ccb1 5v protected pad tri protected ppad v cc 5v i b vcc 5 v tri 25 k 25 k 3v obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
input/output groups stv6412a 24/31 doc id 9754 rev 2 figure 10. c gate logical output (pin 52) figure 11. fast blanking output (pin 49) protected pad v ccb1 5v v dd 5v 18 k 50 ohms protected pad v ccb1 5v v ccb1 5v figure 12. video outputs (pins 38, 40, 42, 44, 46, 48) figure 13. audio inputs (pins 7, 9 11, 13, 19, 20, 22, 23) protected pad protected pad v cc 5v ib v ccb1,2 ...7 5v v cca 9v protected pad 50 k v cc /2 i b figure 14. slow blanking i/o (pins 59, 61) figure 15. trap filter (pin 34) protected pad v cc12 12 v 110 k 55 k 25 k 1k v cc 12 v protected pad v ccb5 5v 100 1k v cc 5v obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a input/o utput groups doc id 9754 rev 2 25/31 figure 20. i2c bus (scl) (pin 55) figure 16. audio outputs (pins 27, 28, 29, 30, 32, 33,35) figure 17. interrupt output (pin 58) protected pad v ccao i2 v 60 w float v dd 5v protected pad 40 figure 18. 2 c bus (sda) (pin 56) figure 19. i 2 c bus (add) (pin 54) protected pad protected pad acknowledge 10 k float v dd 5v protected pad 10 k float v dd 5v protected pad 10 k float v dd 5v obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
input/output groups stv6412a 26/31 doc id 9754 rev 2 figure 21. power supply connection 41 gndp 47 v cc b1 v cc b2 v cc b3 v cc b4 v cc b5 v cc a0 v cc a v cc 10 v 12 v gnda gndref gndv v cc 12 12 v gdd 53 5v v dd 45 43 37 31 63 1 24 25 17 5 57 39 these symbols represent some huge diode and zener-like components used for esd protection of the device. they are not supposed to be paths for any current in normal operation mode. float obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a application diagram doc id 9754 rev 2 27/31 5 application diagram note: the application diagram presented here is an example only and is subject to change without notice. the real application diagram will depend on application conditions and constraints. figure 22. application diagram for more details refer to the stv6412 application note. modulator 4.43mhztrap stv6412a obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
package mechanical data stv6412a 28/31 doc id 9754 rev 2 6 package mechanical data figure 23. 64 pin, lqfp64l (low-profile quad flat package) (14 x 14 x 1.4 mm) -odulator -(z4rap 346! table 22. lqfp64l package dimensions 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 0.30 0.37 0.45 0.0118 0.015 0.018 c 0.09 0.20 0.0035 0.0079 ccc 0.10 0.0039 d 15.80 16.00 16.20 0.622 0.630 0.638 d1 13.80 14.00 14.20 0.543 0.551 0.559 d3 12.00 0.472 e 0.80 0.0315 e 15.80 16.00 16.20 0.622 0.630 0.638 obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a package mechanical data doc id 9754 rev 2 29/31 e1 13.80 14.00 14.201 0.543 0.551 0.559 e3 12.00 0.472 l 0.45 0.60 0.75 0.018 0.024 0.030 l1 1.00 0.039 degrees k 0 minimum 3.5 typical 7 maximum table 22. lqfp64l package dimensions (continued) dimensions millimeters inches min. typ. max. min. typ. max. obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
revision history stv6412a 30/31 doc id 9754 rev 2 7 revision history table 23. document revision history date revision changes 24-jan-2006 1 initial release. 24-apr-2007 1.1 reformatted to the new corporate template. corrections to figure 22: application diagram on page 27 and addition of applicat ion diagram disclaimer. 19-jun-2007 1.2 changed package type from tqfp64 to lqfp64l. updated figure 23: 64 pin, lqfp64l (low-profile quad flat pac kage) (14 x 14 x 1.4 mm) on page 28 . updated table 22: lqfp64l package dimensions on page 28 . 10-jul-2007 1.3 minor corrections. 02-sep-2009 2 minor corrections. obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)
stv6412a doc id 9754 rev 2 31/31 please read carefully: information in this document is provided so lely in connection with st products. stmi croelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifi cations or improvements, to this docum ent, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and serv ices described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by est oppel or otherwise, to any intellectual pr operty rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or consider ed as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and cond itions of sale st disclaims any express or implied warranty with respect to the use and /or sale of st products includi ng without limi tation implied warranties of merch antability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an author ized st representative, st products are not recommended, authorized or warranted for use in military, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are no t specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions di fferent from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service descr ibed herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or regist ered trademarks of st in various countries. information in this document supersedes and r eplaces all informati on previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2009 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - h ong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com obsolete product(s) - obsolete product(s) obsolete product(s) - obsolete product(s)

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