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TA1276AN 2002-03-29 1 toshiba bipolar linear integrated circuit silicon monolithic TA1276AN pal / ntsc video chroma and deflection ic for ctv (normal scan / double scan mode) TA1276AN provides video, chroma and deflection (sync, when double scan mode) circuit for a pal / ntsc color tv, and suitable for a high picture quality, large screen size, wide and / or double scanning tv. these functions are integrated in a 56pin dual-in-line shrink-type plastic package. TA1276AN provides a high-performance video processor in which a yuv double scanning signal can be applied in video, pal / ntsc auto-detection circuit in chroma and 50 / 60hz auto-detection circuit in sync. pal demodulation circuit includes baseband signal processing system. and this demodulation circuit does not required any adjustment. TA1276AN includes i 2 c bus interface, so you can adjust various functions and controls via the bus. weight: 5.55g (typ.) tentative
TA1276AN 2002-03-29 2 features video / chroma section y delay line chroma trap iq demodulation for ntsc, uv demodulation for pal bep (back end processor) section enable to process a yuv signal independently double scanning signal processing capability (y processing section) black stretcher (controlled by i 2 c bus) dc restoration circuit (controlled by i 2 c bus) highbright-color circuit d.l. aperture sharpness circuit+super real transcend circuit (lti) correction (enable to control binary line, gain / start point) y noise reduction circuit velocity scan modulation output (the first order differential output and phase / amplitude adjustment) (color difference section) color detail enhancer selectable relative phase and amplitude flesh-color restoration color circuit baseband tint color (text section) rgb primary color output on screen display interface linear rgb interface fast blanking drive control akb (only black level) or cut-off bus control deflection section high performance sync. separation circuit adjustment free h and v oscillation circuit by countdown system horizontal and vertical position adjustment sync separation, hd output horizontal and vertical pulse output in normal mode.
TA1276AN 2002-03-29 3 block diagram
TA1276AN 2002-03-29 4 terminal functions pin no. pin name function interface circuit input / output signal 1 f sc output outputs oscillation waveform of vcxo. when 3.58ntsc killer-off this pin voltage sets 3.2v. when b / w or other systems killer-off, this pin voltage sets 1.4v. dc 3.58ntsc :3.2v b / w or others system :1.4v ac 0.6v p-p 2 scp output outputs scp (sand castle pulse). the output signal consists of clamp pulse, horizontal blanking pulse, and vertical blanking. the minimum load resistance is 3k ? . 3 secam control the input / output pin that is used to control the secam demodulation ic. when current stronger than 250a flows from this pin, that is recognized as secam. when pal / ntsc 4.0v when secam 0.75v 4 y1 output outputs the y signal that routed the f sc trap (trap can be turned on or off with bus.) and the y delay line circuit. 5 u / q output outputs b-y (u) or i signal. it includes lpf that can remove carrier. dc 2.5v rainbow color bar : 360mv p-p
TA1276AN 2002-03-29 5 pin no. pin name function interface circuit input / output signal 6 v / i output outputs r-y (v) or q signal.it includes lpf that can remove carrier. the chroma signal that routed acc and tof circuits (before demo input) can be monitored by pulling up this pin at 10k ? . dc 2.5v rainbow color bar : 360mv p-p 7 1h dl control outputs the result of whether the signal is pal, secam or ntsc. connect the output to the 1h dl ic. in the case of discrimination between white or black, the voltage just before that is retained. the voltage immediately after turning-on is not fixed. 8.4v: pal 4.3v: secam 0v: ntsc 8 9 10 4.43mhz x?tal m pal x?tal 3.58mhz x?tal connect x?tal. in the case of series capacity, the oscillation frequency (f 0 ) can be changed. in the case of parallel capacity, the changeable range of frequency can be changed. dc 4.0v 90mv p-p 11 apc filter connect apc filter demodulating the chroma. the oscillation frequency of vcxo varies depending on the voltage at this pin. dc 12 v cc1 (5v) the v cc of the chroma and i 2 c bus blocks. connect 5v (typ.) D D
TA1276AN 2002-03-29 6 pin no. pin name function interface circuit input / output signal 13 chroma input the pin through which the chroma is input. input the chroma signal that was subjected to y / c separation. 14 chroma gnd the gnd pin of the chroma processing block. D D 15 y1 / sync input the pin through which the composite video signal or y signal is input. input via clamp capacitor. 16 v-sep. connect the filter separating the vertical synchronization. dc6.4v 17 hd output (1) when bus hd-out = 0 output the hd pulse (pulse duration : 1s) together with afc. this pin also serves as the external input pin that accepts bpp (black peak detection stopping pulse) signal. (2) when bus hd-out = 1 when akb mode is on, the pulse which covers akb reference period is output.
TA1276AN 2002-03-29 7 pin no. pin name function interface circuit input / output signal 18 sync. output output the synchronizing signal that was separated in the synchronous separation circuit. this pin is of the open collector system. connect the pull-up resistor. 19 def gnd the gnd pin of def block. D D 20 afc filter connect the filter for horizontal afc. the frequency of the horizontal output varies depending on the voltage at this pin. dc 21 32fh vco connect the ceramic oscillator for horizontal oscillation. the oscillator to be used is csbla503keczf30, made by murata electronics. 22 def v cc (9v) the v cc of def block. connect 9v (typ.) to this pin. D D 23 horizontal output (mode sw) produces the horizontal output. connecting the def v cc to this pin can swich double scan mode. in this case, the horizontal output is not produced. high: 3.2v low: 0.2v
TA1276AN 2002-03-29 8 pin no. pin name function interface circuit input / output signal 24 curve correction (ext. cp / bpp input) (1) used to correct distortion of picture in the case of high-tension fluctuation. input the ac component of high-tension fluctuation. to disactivate the distortion correction feature, connect a capacitor of 0.01f between this pin and gnd. (2) double scan mode this pin is to input external cp (clamping pulse) and bpp (black peak detection stopping pulse). (1) dc 4.5v (2) 25 fbp input the pin through which fbp is input to generate pulses for horizontal afc2, y smoothing, and horizontal blanking. when double scam mode, input h blanking pulse (5v or over). 26 digital gnd the gnd pin of i 2 l block. D D 27 sda the sda pin of i 2 c bus. D 28 scl the scl pin of i 2 c bus. D
TA1276AN 2002-03-29 9 pin no. pin name function interface circuit input / output signal 29 30 b s / h g s / h these pins are to be connected with a capacitor for sampling and holding a bais voltage in the akb operation, of for clamping to set dc voltage of rgb outputs in the no-akb mode. dc 31 vp output outputs the vertical pulse. this pin also serves as the external blanking input. when current stronger than 350 a flows, blanking takes place due to the internal blanking and or logic circuit. 32 ys2 switches between the internal rgb signal and analog rgb (pin 33, 34, 35) signal. when this switch is on, the vsm output is muted. 33 34 35 analog b input analog g input analog r input the pin through which the analog rgb is input. input the rgb signal via clamp capacitor. 36 ys1 switches between the internal rgb signal and osd / analog rgb (pin 37, 38, 39). when this switch is on, the vsm output is muted.
TA1276AN 2002-03-29 10 pin no. pin name function interface circuit input / output signal 37 38 39 analog osd b input analog osd g input analog osd r input the pin through which the osd signal or analog rgb is input. (1) when inputting an osd signal, input the ods signal with a voltage of 0~5v (4.1v or more). (2) when inputting an analog rgb, input the rgb signal via clamp capacitor. acl works on this input signal only when the entire screen is ys1-hi (the entire screen : osd). 40 v cc2 (9v) the v cc pin of the text block. connect 9v (typ.). D D 41 42 43 b output g output r output outputs rgb. 44 text gnd the gnd pin of text block. D D 45 abcl input used to control the external uni-color, brightness, and dynamic abl. use this pin when using abl or acl. the sensitivity and starting point of the abl and dynamic abl can be set by using bus. abcl off : 6v or more
TA1276AN 2002-03-29 11 pin no. pin name function interface circuit input / output signal 46 v cc3 (9v) the v cc pin of picture quality and color difference blocks. connect 9v (typ.). D D 47 ym input the half-tone switch for internal rgb signal. when the voltage at this pin is set to 7.0v or more, the rgb output voltage. 48 vsm output outputs the y-signal that routed hpf after it had been subjected to dc restoration. the output is muted with the switches of pins 32 and 36. dc 3.5v 49 apl detection connect the filter correcting dc restoration ratio. opening this pin can monitor the y-signal that was subjected to black stretching. dc 50 black peak hold connect the filter controlling the black stretching gain of the black stretching circuit. the black stretching gain varies depending on the voltage at this pin. dc
TA1276AN 2002-03-29 12 pin no. pin name function interface circuit input / output signal 51 52 v / i input u / q input the pin through which r-y (v) / i and b-y (u) / q signals are input. input via clamp capacitor. when burst : chroma = 1 : 1 360mv p-p dc : 5.0v 53 y2 input the pin through which b-y (v) / i and r-y (u) / q signals are input. input via clamp capacitor. 54 color limiter color the filter detecting the color limit. dc 55 r s / h the same as pin 29 and 30. the same as pin 29 and 30. dc 56 sense input this pin is to sense ik voltage feed-back from a crt drive circuit.
TA1276AN 2002-03-29 13 bus control map write mode slave address : 88h (10001000) preset sub address d7 msb d 6 d 5 d 4 d 3 d 2 d 1 d0 lsb msb lsb 00 p-mute uni-color 1000 0000 01 brightness 1000 0000 02 color y-mute 1000 0000 03 tint ym-sw 1000 0000 04 sharpness ynr 1000 0000 05 rgb brightness wps l 1000 0000 06 hi brt rgb contrast 1000 0000 07 sub color color clt 1000 0000 08 sub contrast y- curve flesh 1000 0000 09 g (r) drive dr-sw 1000 0000 0a b drive cde 1000 0000 0b horizontal position hv-sepl v-off h-blk 1000 0000 0c r cut off 1000 0000 0d g cut off 1000 0000 0e b cut off 1000 0000 0f r-y phase r / b gain g / b gain g-y phase 0000 0000 10 color system p / n-id bb sw osd-sl os-acl tx-acl 0000 0000 11 vsm phase vsm gain apacon peak f 0 vsm-pb 0000 0000 12 dc restoration point dc restoration rate dc rest. limit 0000 0000 13 black stretch point apl vs bsp y- pnt vsm-h.pb freq 0000 0000 14 shr-tracking test rgb- b.l.c. b.s.g. b.d.l. bs-are 0000 0000 15 dynamic abl point dynamic abl gain akb mode 0000 0000 16 abl point abl gain rgb out mode 0000 0000 17 hd-out v-blk vertical frequency vertical position 0000 0000 18 y-dl c-trap tof f 0 tof-q 0000 0000 read mode slave address : 89h (10001001) d 7 d 6 d 5 d 4 d 3 d 2 d 1 d 0 0 porset color system x?tal v-freq v-std h-lock 1 n-det rgbout y 1 -in iq-in y 2 -in h-out vp-out ik-in
TA1276AN 2002-03-29 14 bus control feature write mode item explain preset p-mute picture mute sw ; (0) : off, (1) : on on uni-color uni-color adjustment ; ? 18db~0db center brightness brightness adjustment (including sub adjustment) ; ? 40ire~+40ire center color color adjustment ; ? 20db (color mute)~+4db 0db y-mute y mute sw ; (0) : on, (1) : off on tint hue adjustment ; ? 32~+32 0 tm-sw half-tone sw (yuv input) ; (0) : off, (1) : on off sharpness sharpness adjustment ; ? 20db~+14db +8db ynr y noise reduction sw ; (0) : off, (1) : on off rgb brightness rgb brightness adjustment ; ? 20ire~+20ire 0ire wps l white peak suppression level ; (0) : 130ire, (1) : 110ire 130ire hi brt high-bright color ; (0) : off, (1) : on off rgb contrast rgb contrast ; ? 18db~0db ? 18db sub color sub-color ; ? 4db~0db~+3db 0db color color correction point ; (00) : off, (01) : 0.2v p-p , (10) : 0.4v p-p , (11) : 0.6v p-p off clt color limiter level ; (0) : 1.8v p-p , (11) : 2.2v p-p 1.8v p-p sub contrast sub-contrast adjustment ; ? 3db~+3db 0db y- curve y- curve switching ; (00) : off, (01) : ? 2.5db, (10) : ? 5.6db, (11) : ? 7db off flesh flesh color ; (0) : off, (1) : on off g (r) / b drive r (g) / b drive gain adjustment ; ? 5db~0db~+3db 0db (40h) dg-sw drive gain base axis switching ; (0) : g, (1) : r g cde color detail enhancer ; (0) : on (foced off when sharpness go through), (1) : off on horizontal position horizontal position adjustment ; ? 3s~+3s 0s hv-sepl sync separation level ; (from sync tip) (0) : 35%, (1) : 40% 35% v-off vertical output sw ; (0) : on, (1) : off on h-blk horizontal blanking sw ; (0) : on, (1) : off on r / g / b cutoff r / g / b cut-off adjustment ; when akb-off : rgb output2v~2.5v~3v when akb-on : sens input 1v p-p ~1.5v p-p ~2v p-p (5ire) center (80h) r-y phase r-y relative phase switching ; (00) : 90, (01) : 92, (10) : 94, (11) : 112 90 r / b gain r / b relative amplitude switching ; (00) : 0.56, (01) : 0.68, (10) : 0.79, (11) : 0.86 0.56 g / b gain g / b relative amplitude switching ; (00) : 0.3, (01) : 0.34, (10) : 0.4, (11) : 0.45 0.3 g-y phase g-y relative phase switching ; (00) : 236, (01) : 240, (10) : 244, (11) : 253 236
TA1276AN 2002-03-29 15 item explain preset color system color system ; system x?tal color color tini difference difference control mute input (000) : ntsc 3.58 forced off i / q enable (001) : ntsc 3.58 forced off u / v enable (010) : ntsc 4.43 forced off u / v enable (011) : pal 4.43 (n) forced off u / v enable (100) : pal m forced off u / v enable (101) : secam 4.43 forced off u / v enable (110) : multi 3.58 / 4.43 forced off u / v enable (111) : trinorma 3.58 / m / n forced off u / v enable ntsc (000) p / n id pal / ntsc ident sensitivity switching ; (0) : low (when digital comb filter used), (1) : normal low bb sw blue back sw ; (0) : off, (1) : on off osd-sl osd peak suppressing level switching ;(0) : 96ire, (1) : 76ire 96ire os-acl osd acl sw ; (0) : on, (1) : off on tx-acl rgb acl sw ; (0) : gain 1 / 2, (1) : normal gain1 / 2 vsm phase vsm output phase switching ; (00) : ? 40ns, (01) : ? 20ns, (10) : 0ns, (11) +20ns ? 40ns vsm gain vsm output gain switching ; (00) : 0db, (01) : ? 6db, (10) : ? 9db, (11) : off 0db apacon peak f 0 apacon peak frequency switching ; (000) : through (apacon off), (001) : 4.0mhz, (010) : 3.3mhz, (011) : 2.5mhz, (100) : through (apacon off), (101) : 13mhz, (110) : 10mhz, (111) : 8mhz (000) through vsm pb vsm output horizontal parabolic modulation sw ; (0) : parabolic modulation off, (1) : on (nearby sharpness ? 3db) parabolic modulation off dc restoration point dc restoration start point ; (000) : 0% ~ (111) : 42% 0% dc restoration rate dc restoration rate ; (000) : 100%~(111) : 130% 100% dc rest. limit dc restoration limit point ; (apl) (00) : 100%, (01) : 87%, (10) : 73%, (11) : 60% 100% black stretch point (bsp) black stretcher start point ; when apl 0% (000) : 22ire~(111) : 56ire 22ire apl vs bsp (avs) apl level vs. black stretcher start point ; (00) : 0db~(11) : 1.5db, bsp+aplbspavs 0db y- pnt y- point switching ; (0) : 100ire, (1) : 95ire 100ire vsm-h. pb freq vsm output horizontal parabolic frequency ; (00) : 15.7khz, (01) : 24.8khz, (10) : 31.5khz, (11) : 33.75khz D shr-tracking sharpness tracking ; (00) : high, (11) : low high
TA1276AN 2002-03-29 16 item explain preset test test mode ; (0) : normal (1) : test mode (for factory test) switched by sub-address 17h d 2 (0) : during v-blk, (1) : normal y / rgb smoothing off, monitor of dac at hd output normal rgb- rgb- sw ; (0) : off, (1) : on off b.l.c. block level automatic correction (priority over black stretcher) ; max 7.5ire (0) : off, (1) : on off b.s.g. black stretcher gain sw ; (0) on, (1) : off on b.d.l. black detection sw ; (0) : 3ire, (1) : 0ire 3ire bs-are black area reinforcement sw ; for wide tv (when using time axis compression ic) (0) : on, (1) : off on dynamic abl point dynamic abl detection voltage ; (000) : min~(111) : max min dynamic abl gain dynamic abl sensitivity ; (000) : min~(111) : max min akb mode akb mode ; only black level (00) : akb off+s / h low, (01) : akb off+cutoff bus (10) : akb on+i-det normal, (11) : akb on+i-det3 (00) akb off+ s / h low abl point abl detect voltage ; (000) : min~(111) : max min abl gain abl gain ; (000) : min~(111) : max min rgb out mode rgb output mode sw ; (00) : normal, (01) : only r, (10) : only g, (11) : only b normal hd-out hd output sw ; (0) : hd output, (1) : akb period pulse hd output v-blk vertical blanking sw ; (0) : on, (1) : off on vertical frequency vertical frequency ; (000) : auto (50, 60hz), (001) : auto (50, 60hz / v mask off), (010) : 60hz, (011) : 60hz (v mask off), (100) : forced 262.5h, (101) : forced 263h, (110) : forced 312.5h, (111) : forced 313h, when (100), (101), (110), (111) : afc free-run (000) auto vertical position vertical position ; (000) : 0h~(111) : 7h (1h step) 0h y-dl y-dl sw ; (0) off, (1) : on (+80ns) off c-trap chroma trap sw ; (0) : off, (1) : on off tof-f 0 selectable tof peak frequency ; (000) : 0.8f sc +tof off~(111) : 1.5f sc tof off tof-q selectable tof q ; (000) : 0.6~(111) : 1.2 0.6
TA1276AN 2002-03-29 17 delay time from y 1 input (pin 15) to y 1 output (pin 4) color trap y-dl delay time b / w D off on 295ns 375ns off off off on on 295ns (4.43) 295ns (3.58 / m / n) 375ns (4.43) 375ns (3.58 / m / n) pal / ntsc on off off on on 295ns (4.43) 310ns (3.58 / m / n) 375ns (4.43) 390ns (3.58 / m / n) secam D off on 495ns 575ns read mode characteristic explain porset power on reset ; (0) : resister preset, (1) : normal color system color system ; receiving system (judgement of id on / off) (00) : b / w, (01) : secam, (10) : pal, (11) : ntsc x?tal x?tal mode ; (00) : D , (01) : 4.43 (n), (10) : m, (11) : 3.58 v-freq vertical frequency ; (0) : 50hz, (1) : 60hz v-std vertical standard ident ; (0) non-standard, (1) : standard h-lock horizontal lock ident ; (0) : lock, (1) : un-lock n-det noise ident result ; (0) : few, (1) : many rgbout, y 1 -in, iq-in, y 2 -in, h-out, vp-out self-ident result ; (0) : ng, (1) : ok ik in ik input ident result ; (0) : ng, (1) : ok
TA1276AN 2002-03-29 18 i 2 c bus transmission / receiving slave address : 88h a 6 a 5 a 4 a 3 a 2 a 1 a 0 w / r 1 0 0 0 1 0 0 0 / 1 start / stop condition bit transmission confirmation response
TA1276AN 2002-03-29 19 data transmit format 1 data transmit format 2 data receive format at the moment of the first acknowledge, the master transmitter becomes a master receiver and the slave receiver becomes a slave transmitter. this acknowledge is still generated by the slave. the stop condition is generated by the master. optional data transmit format : automatic increment mode in this transmission method, data is set on automatically incremented sub-address from the specified sub-address. purchase of toshiba i 2 c components conveys a license under the phillips i 2 c patent rights to use these components in an i 2 c system, provided that the system conforms to the i 2 c standard specification as defined by phillips.
TA1276AN 2002-03-29 20 o pin 23 h-out (mode sw) you can select the double scan mode (external cp (clamping pulse) input mode), by connecting pin 23 to def v cc . (the threshold of pin 23 : 8.7v = def v cc ? 0.3v) when double scan mode, function of pin 24 and 25 are changed. normal scan (internal cp) mode : pin 23 D h-out the function of pin 24 is curve correction input, that of pin 25 is fbp (flay back pulse) input. the input signals of y2, u / i and v / i inputs (pin 53, 52 and 51), analog osd inputs (pin 39, 38 and 37), analog rgb inputs (pin 35, 34 and 33) are clamped of the internal cp based on the y1 / sync input (pin 15). double scan (external cp input) mode : pin 23 D h-out the function of pin 24 is ext / bpp (note) input, that of pin 25 is h / v blk (blanking) input. the input signals of y2, u / i and v / i inputs (pin 53, 52 and 51), analog osd inputs (pin 39, 38 and 37), analog rgb inputs (pin 35, 34 and 33) are clamped of the external cp based on pin 24. in case of double scan mode, bus ?v-blk? should be set (1) ; off. terminal functions mode pin no. normal scan mode (internal cp) double scan mode (external cp input) pin 23 h-out def v cc (9v) pin 24 curve correction signal input ext cp / bpp input pin 25 fbp input (for afc-2 detection, h bkl) h / v blk input (for rgb h / v blk, akb) pin 53, 52, 51 pin 39, 38, 37 pin 35, 34, 33 clamping by internal cp (based on pin 15) clamping by external cp (based on pin 24) pin 15 normal scan ; y / sync signal input pin 17 normal scan ; hd pulse output (based on pin 15) pin 31 normal scan ; vp output (based on pin 15) note: bpp : black peak detection stopping pulse maximum ratings (ta = 25c) characteristic symbol rating unit supply voltage v ccmax 12 v input terminal voltage e inmax 9 v p-p power dissipation p d (note 1) 1920 mw power dissipation reduction rate 1 / ja 15.4 mw / c operating temperature t opr ? 20~65 c storage temperature t stg ? 55~150 c note 1: refer to the figure below. fig. power dissipation reduction against higher temperature
TA1276AN 2002-03-29 21 recommended condition in use characteristic description min typ. max unit pin 5 4.3 5.0 5.3 supply voltage pin 22, pin 40, pin 46 8.7 9.0 9.3 v y 1 / sync, y 2 input signal level white : 100%, including, synchronization (synchronization : minus) 0.9 1.0 1.1 v p-p when tof off (burst level) 200 300 400 chroma input signal level when tof on (burst level) 100 200 300 mv p-p i / q, u / v input level b : c = 1 : 1 D 300 D mv p-p when osd input (dc coupling) 4.2 D 5.0 v osd / analog rgb input level when analog rgb input (ac coupling) 0.4 0.5 0.6 analog rgb input level D 0.4 0.5 0.6 v p-p fbp width D 11 12 13 s fbp input current D D D 1.5 rgb output current D D 1.0 2.0 h. output current D D 3.0 10.0 pin 18 input current D D 0.5 1.0 ma electrical characteristics (v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 25c, unless otherwise specified) supply current pin name symbol test cir- cuit min typ. max unit v cc1 i cc1 D 34.0 40.5 50.0 v cc2 i cc2 D 33.0 40.0 49.0 v cc3 i cc3 D 32.0 39.5 48.0 def v cc i cc4 D 9.5 12.8 18.0 ma
TA1276AN 2002-03-29 22 terminal voltage pin no. pin name symbol test cir- cuit min typ. max unit 3 secam cont. v 3 D 3.7 4.0 4.3 4 y 1 output v 4 D 1.7 2.0 2.3 5 u / q output v 5 D 2.2 2.5 2.8 6 v / i output v 6 D 2.2 2.5 2.8 8 4.43mhz x?tal v 8 D 3.7 4.0 4.3 9 m pal x?tal v 9 D 3.7 4.0 4.3 10 3.58mhz x?tal v 10 D 3.7 4.0 4.3 13 chroma input v 13 D 2.2 2.5 2.8 15 y 1 input v 15 D 2.7 3.0 3.3 16 v sep. v 16 D 5.7 6.1 6.5 17 sync. in v 17 D 2.60 2.85 3.10 21 32f h vco v 21 D 5.4 5.7 6.0 24 curve correction v 24 D 4.3 4.5 4.7 32 ys2 v 32 D 0 0.1 0.3 33 analog b input v 33 D 3.5 3.8 4.1 34 analog g input v 34 D 3.5 3.8 4.1 35 analog r input v 35 D 3.5 3.8 4.1 36 ys1 v 36 D 0 0.1 0.3 37 osd / analog b input v 37 D 3.3 3.6 3.9 38 osd / analog g input v 38 D 3.3 3.6 3.9 39 osd / analog r input v 39 D 3.3 3.6 3.9 45 abcl input v 45 D 5.85 6.10 6.35 48 vm output v 48 D 3.2 3.5 3.8 49 apl det v 49 D 4.8 5.0 5.2 50 black peak hold v 50 D 4.2 4.4 4.6 51 v / i input v 51 D 4.8 5.0 5.2 52 u / q input v 52 D 4.8 5.0 5.2 53 y 2 input v 53 D 6.1 6.3 6.5 54 color limiter v 54 D 6.6 6.9 7.2 v
TA1276AN 2002-03-29 23 ac characteristic video section characteristic symbol test cir- cuit test condition min typ. max unit y 2 input dynamic range dr 53 D D 0.7 1.0 1.5 v p-p v b D ? 5 0 5 black level shift v b3 D (note v 1 ) 35 42 49 mv black stretching amplifier maximum gain g bs D (note v 2 ) 1.30 1.40 1.50 times p bst1 D 17 22 27 black stretching start point (1) p bst2 D (note v 3 ) 51 56 61 p bs1 D D 0 4 black stretching start point (2) p bs2 D (note v 4 ) 14 20 26 ire ? v 001 D 30 50 70 ? v 010 D 90 110 130 d.abl detection voltage ? v 100 D (note v 5 ) 220 240 260 mv s damin D D 0 0.04 d.abl sensitivity s damax D (note v 6 ) 0.280 0.295 0.310 v / v black level correction b lc D (note v 7 ) 6.5 7.0 7.5 p 0 D 95 100 105 y correction point p 100 D D 2 5 8 ire g 01 D ? 3.5 ? 2.5 ? 1.5 g 10 D ? 5.8 ? 4.8 ? 3.8 y correction gain g 11 D D ? 7.5 ? 6.5 ? 5.5 db black peak detection level ? v bp D (note v 8 ) ? 15 0 15 mv adt100 D 0.9 1.0 1.1 dc restoration gain adt130 D (note v 9 ) 1.25 1.35 1.45 times v dt0 D ? 3 0 3 dc restoration start point v dt48 D (note v 10 ) 42 47 51 p dtl60 D 59 63 67 p dtl73 D 71 75 79 p dtl87 D 83 87 91 dc restoration limit point p dtl100 D (note v 11 ) 95 99 103 % f apl01 D 3.3 4.2 5.1 f apl10 D 2.6 3.3 4.0 f apl11 D 2.0 2.5 3.0 f aph01 D 11.2 14.5 17.4 f aph10 D 9.5 11.9 14.3 sharpness peak frequency f aph11 D D 6.5 8.1 9.7 mhz
TA1276AN 2002-03-29 24 characteristic symbol test cir- cuit test condition min typ. max unit g maxl D 11 14 17 g minl D ? 11 ? 8 ? 5 g maxh D 11 14 17 sharpness control range g minh D (note v 12 ) ? 9 ? 6 ? 3 g cenl D 7 10 13 sharpness control center gain g cenh D D 7 10 13 g yl D ? 11 ? 8 ? 5 ynr characteristic g yh D (note v 13 ) ? 9 ? 6 ? 4 db t sl1 D 100 120 140 t srtl D 40 60 80 t sh1 D 160 180 200 srt response to 2t pulse input t srth D (note v 14 ) 20 30 45 ns f vl D when normal mode 7 9 11 vsm peak frequency f vh D when double scan mode 12.5 16 19.5 mhz g vl00 D 11 13 15 g vl01 D ? 7.5 ? 6 ? 4.5 g vl10 D ? 11 ? 9 ? 8 g vl11 D ? ? 35 ? 29 g vh00 D 11 13 15 g vh01 D ? 7.5 ? 6 ? 5 g vh10 D ? 11 ? 9 ? 7 vsm gain g vh11 D (note v 15 ) ? ? 32 ? 26 g vrl D ? 4 ? 3 ? 2 g vll D ? 4 ? 3 ? 2 g vrh D ? 4 ? 3 ? 2 vsm parabolic modulating gain g vlh D (note v 16 ) ? 4 ? 3 ? 2 db threshold voltage of vsm muting v sr36 D pin 32, pin 36 0.65 0.75 0.85 v t vml1 D 0 50 100 t vml2 D 0 50 100 t vml3 D 0 50 100 t vml4 D 0 50 100 t vmh1 D 0 50 100 t vmh2 D 0 50 100 t vmh3 D 0 50 100 response time for vsm high speed muting t vmh4 D (note v 17 ) 0 50 100 t y2rd D when through 26 36 46 t y2rl D when normal mode 200 220 240 between y2 input and r output delay time t y2rh D when double scan mode 85 100 115 ns
TA1276AN 2002-03-29 25 chroma section characteristic symbol test cir- cuit test condition min typ. max unit f 600 D 0.300 0.355 0.410 f 300 D 0.300 0.355 0.410 f 30 D 0.290 0.343 0.400 f 10 D 0.090 0.113 0.135 v p-p acc characteristic a D (note c 1 ) 0.90 0.97 1.05 times es+ D 2.0 3.0 4.0 sub color control characteristic es ? D D ? 6.0 ? 4.3 ? 2.0 db 3 D 0.70 1.20 1.70 4 D 0.70 1.20 1.70 apc frequency control sensitivity m D (note c 2 ) 0.70 1.20 1.70 hz / mv f3 ph D 250 500 2000 f3 hh D 250 500 2000 f3 pl D ? 2000 ? 500 ? 250 f3 hl D ? 2000 ? 500 ? 250 f4 ph D 250 500 2000 f4 hh D 250 500 2000 f4 pl D ? 2000 ? 500 ? 250 f4 hl D ? 2000 ? 500 ? 250 fm ph D 250 500 2000 fm hh D 250 500 2000 fm pl D ? 2000 ? 500 ? 250 apc pull-in / hold range fm hl D (note c 3 ) ? 2000 ? 500 ? 250 hz f 03 D f 0 = 3.579545mhz ? 200 0 200 f 04 D f 0 = 4.433619mhz ? 200 0 200 3.58mhz / 4.43mhz free run frequency f 0m D f 0 = 3.575611mhz ? 200 0 200 hz f 3c D when 3.58ntsc 0.54 0.78 0.96 f 4c D when 4.43pal 0.52 0.72 0.90 f sc output amplitude f mc D when m-pal 0.54 0.78 0.96 v p-p v 1a D when 3.58ntsc 2.80 3.20 3.50 f sc output dc level v 1b D except for 3.58ntsc 1.15 1.55 1.75 v q axis v bn D 290 355 415 iq color difference signal output level i axis v rn D when b : c = 1 : 1 signal 290 355 415 mv p-p iq signal demodulation ratio v rn / v bn D r-y / b-y 0.94 1.00 1.15 D q axis bn D 29.0 33.0 37.0 iq demodulation angle i axis rn D D 118.0 123.0 126.0 iq demodulation angle relative brn D i-q 87.0 90.0 93.0 b-y v bp D 290 355 415 uv color difference signal output level r-y v rp D when b : c = 1 : 1 signal 290 355 415 mv p-p uv signal demodulation ratio v rp / v bp D r-y / b-y 0.94 1.00 1.10 D b-y bp D ? 5.0 0.0 3.0 uv demodulation angle r-y rp D D 85.0 90.0 93.0 uv demodulation angle relative brp D D 87.0 90.0 93.0
TA1276AN 2002-03-29 26 characteristic symbol test cir- cuit test condition min typ. max unit v bne D D 1.90 4.00 v rne D D 1.90 4.00 v bpe D D 1.90 4.00 residual carrier level v rpe D f sc level D 1.90 4.00 v bhne D D 1.90 4.00 v rhne D D 1.90 4.00 v bhpe D D 1.90 4.00 residual higher harmonics level v rhpe D f sc 2 level D 1.90 4.00 mv p-p v bn D b-y output 1.80 2.15 2.50 3.58ntsc v rn D r-y output 1.90 2.24 2.60 v bp D b-y output 1.80 2.15 2.50 color difference output dc voltage 4.43ntsc v rp D r-y output 1.90 2.25 2.60 pal v dlp D 8.00 8.30 8.60 ntsc v dls D 4.00 4.30 4.60 1hdl output dc level secam v dln D output from pin 0.01 0.50 0.20 cp sch D 7.50 7.80 8.10 hd scm D 3.95 4.20 4.45 sand castle pulse height vd scl D D 2.25 2.50 2.75 sen D 3.70 4.00 4.30 sep D 3.70 4.00 4.30 secam output dc level ses D (note c 4 ) 0.40 0.70 1.00 v vn cl D 3.80 5.83 7.87 vn ch D 2.52 3.88 5.24 vn bl D 3.73 5.74 7.75 ntsc ident sensitivity vn bh D (note c 5 ) 2.44 3.75 5.06 vp cl D 4.80 6.83 8.87 vp ch D 3.52 4.88 6.24 vp bl D 4.73 6.74 8.75 pal ident sensitivity vp bh D (note c 6 ) 3.44 4.75 6.06 mv p-p gf h3 D 20.7 22.7 24.7 gf c3 D 20.2 22.2 24.2 gf l3 D 18.2 20.2 22.2 gf h4 D 19.1 21.1 23.1 gf c4 D 19.4 21.4 23.4 tof characteristic gf l4 D (note c 7 ) 18.8 20.8 22.8 through gys D ? 1.21 0.00 1.06 normal gyd D ? 1.21 0.00 1.06 y 1 in~y 1 out ac gain double s gyt D 20 og (output level / input level) ? 1.21 0.00 1.06 y 1 in~y 1 out frequency bandwidth gf y1 D D ? 4.0 ? 1.0 0.0 3.58 gt c3 D D ? 25 ? 20 trap filter gain 4.43 gt c4 D D D ? 25 ? 20 db 3.58ntsc vd3 D 1.30 1.60 D y 1 input dynamic range 4.43pal vd4 D D 1.30 1.60 D vp-p
TA1276AN 2002-03-29 27 text section characteristic symbol test cir- cuit test condition min typ. max unit g r D 2.95 3.30 3.70 g g D 2.95 3.30 3.70 ac gain g b D (note t 1 ) 2.95 3.30 3.70 times g g / r D 0.94 1.00 1.06 ac gain axial difference g b / r D D 0.94 1.00 1.06 D r g fr D 25 30 D g g fg D 25 30 D output bandwidth b g fb D at ? 3db point 25 30 D mhz v u max D 0.59 0.66 0.74 v u cnt D 0.34 0.39 0.44 v u min D 0.09 0.11 0.13 v p-p uni-color control characteristic ? v u D (note t 2 ) 14 15 16 db vbrmax D 4.1 4.4 4.7 vbrcnt D 3.25 3.55 3.85 brightness control characteristic vbrmin D (note t 3 ) 2.4 2.7 3.0 v brightness control sensitivity gbr D (note t 4 ) 5.7 6.6 7.5 mv vwps1 D 2.75 2.95 3.15 white peak slice level vwps2 D (note t 5 ) 2.30 2.50 2.70 v p-p black peak slice level v bps D (note t 6 ) 2.10 2.26 2.42 v r n 41 D D ? 58 ? 49 g n 42 D D ? 58 ? 49 signal-to -noise ratio of rgb output b n 43 D D D ? 58 ? 49 db g ht1 D 0.45 0.50 0.55 half-tone gain g ht2 D (note t 7 ) 0.45 0.50 0.55 times half-tone on voltage v ht D pin 47 0.65 0.85 1.05 r vvr D 0.3 0.8 1.3 g vvg D 0.3 0.8 1.3 v-blk pulse output level b vvb D D 0.3 0.8 1.3 r vhr D 0.3 0.8 1.3 g vhg D 0.3 0.8 1.3 h-blk pulse output level b vhb D D 0.3 0.8 1.3 v t don D D 0.1 0.3 blanking pulse delay time t doff D (note t 8 ) D 0.15 0.3 s ? v su+ D 2.0 2.5 3.0 sub-contrast control range ? v su ? D D ? 3.8 ? 3.3 ? 2.8 db v #41 D 2.25 2.50 2.75 v #42 D 2.25 2.50 2.75 rgb output voltage v #43 D (note t 9 ) 2.25 2.50 2.75 v rgb output voltage triaxial difference ? v out D D D 0 150 mv cut+ D 0.45 0.50 0.55 cut-off voltage control range cut ? D (note t 10 ) 0.45 0.50 0.55 v
TA1276AN 2002-03-29 28 characteristic symbol test cir- cuit test condition min typ. max unit drg+ D 2.35 2.85 3.35 drg ? D ? 5.75 ? 5.00 ? 4.25 drb+ D 2.35 2.85 3.35 drb ? D ? 5.75 ? 5.00 ? 4.25 drr+ D 2.35 2.85 3.35 drive adjustment control range drr ? D (note t 11 ) ? 5.75 ? 5.00 ? 4.25 db murd D 2.1 2.26 2.42 output voltage of muting mugd D (note t 12 ) 2.1 2.26 2.42 bb r D 2.1 2.26 2.42 bb g D 2.1 2.26 2.42 v output voltage of blue back bb b D (note t 13 ) 1.15 1.30 1.45 v p-p acl1 D ? 5 ? 3 ? 1 acl characteristic acl2 D (note t 14 ) ? 14.5 ? 13 ? 11.5 db abl p1 D 0.12 0.17 0.22 abl p2 D 0.04 0.09 0.14 abl p3 D ? 0.05 0.00 0.05 abl p4 D ? 0.15 ? 0.10 ? 0.05 abl p5 D ? 0.24 ? 0.19 ? 0.14 abl p6 D ? 0.34 ? 0.29 ? 0.24 abl p7 D ? 0.43 ? 0.38 ? 0.33 abl point abl p8 D (note t 15 ) ? 0.50 ? 0.45 ? 0.40 abl g1 D ? 0.04 0.00 0.00 abl g2 D ? 0.09 ? 0.04 0.00 abl g3 D ? 0.24 ? 0.19 ? 0.14 abl g4 D ? 0.40 ? 0.35 ? 0.30 abl g5 D ? 0.56 ? 0.51 ? 0.46 abl g6 D ? 0.73 ? 0.68 ? 0.63 abl g7 D ? 0.90 ? 0.85 ? 0.80 abl gain abl g8 D (note t 16 ) ? 0.10 ? 0.92 ? 0.87 v v43 r D 2.25 2.5 2.75 v42 r D 0.3 0.8 1.3 v41 r D 0.3 0.8 1.3 v43 g D 0.3 0.8 1.3 v42 g D 2.25 2.5 2.75 v41 g D 0.3 0.8 1.3 v43 b D 0.3 0.8 1.3 v42 b D 0.3 0.8 1.3 rgb output mode v41 b D (note t 17 ) 2.25 2.5 2.75 v acbr D D 1 D acbg D D 2 D acbb D D 3 D h v acbr D 0.1 0.125 0.15 v acbg D 0.1 0.125 0.15 acb pulse phase / amplitude v acbb D (note t 18 ) 0.1 0.125 0.15 v p-p
TA1276AN 2002-03-29 29 characteristic symbol test cir- cuit test condition min typ. max unit ikr D 1.45 1.65 1.85 ikg D 1.45 1.65 1.85 ik input level ikb D pin 56 input level 1.45 1.65 1.85 v 1r D 40 50 60 2r D 60 70 80 ire ? 1r D 0.75 1.50 2.25 ? 2r D ? 0.75 0.00 0.75 ? 3r D ? 4.05 ? 3.30 ? 2.55 db 1g D 40 50 60 2g D 60 70 80 ire ? 1g D 0.75 1.50 2.25 ? 2g D ? 0.75 0.00 0.75 ? 3g D ? 4.05 ? 3.30 ? 2.55 db 1b D 40 50 60 2b D 60 70 80 ire ? 1b D 0.75 1.50 2.25 ? 2b D ? 0.75 0.00 0.75 rgb correction characteristic ? 3b D (note t 19 ) ? 4.05 ? 3.30 ? 2.55 db g txr D 4.0 4.5 5.0 g txg D 4.0 4.5 5.0 analog rgb gain g txb D (note t 20 ) 4.0 4.5 5.0 times g txg / r D 0.94 1.00 1.06 analog rgb gain triaxial difference g txb / r D D 0.94 1.00 1.06 D r gf txr D 25 30 D g gf txg D 25 30 D analog rgb bandwidth b gf txb D at ? 3db point 25 30 D db r dr35 D 0.6 1.0 1.5 g dr34 D 0.6 1.0 1.5 analog rgb input dynamic range b dr33 D D 0.6 1.0 1.5 vtxwpsr D 2.30 2.55 2.80 vtxwpsg D 2.30 2.55 2.80 analog rgb white peak slice level vtxwpsb D (note t 21 ) 2.30 2.55 2.80 v p-p v bpsr D 2.10 2.26 2.42 v bpsg D 2.10 2.26 2.42 analog rgb black peak limiter level v bpsb D (note t 22 ) 2.10 2.26 2.42 v
TA1276AN 2002-03-29 30 characteristic symbol test cir- cuit test condition min typ. max unit vutxr max D 0.8 0.9 1.0 vutxg max D 0.8 0.9 1.0 vutxb max D 0.8 0.9 1.0 vutxr cnt D 0.45 0.52 0.59 vutxg cnt D 0.45 0.52 0.59 vutxb cnt D 0.45 0.52 0.59 vutxr min D 0.10 0.12 0.14 vutxg min D 0.10 0.12 0.14 vutxb min D 0.10 0.12 0.14 v p-p ? vutxr D 15.5 17.0 18.5 ? vutxg D 15.5 17.0 18.5 rgb contrast control characteristic ? vutxb D (note t 23 ) 15.5 17.0 18.5 db vbr txmax D 3.3 3.5 3.7 vbr txcnt D 2.85 3.05 3.25 analog rgb brightness control characteristic vbr txmin D (note t 24 ) 2.45 2.65 2.85 v analog rgb brightness control sensitivity gbrtx D (note t 25 ) 6.0 6.8 7.6 mv analog rgb mode on voltage vtxon D pin 32 0.65 0.85 1.05 v txacl1 D ? 2 ? 1 ? 0.05 txacl2 D ? 6.5 ? 4.5 ? 2.5 txacl3 D ? 6.5 ? 4.5 ? 2.5 text acl characteristic txacl4 D (note t 26 ) ? 16.5 ? 15.0 ? 13.5 db gosd r D 4.1 4.8 5.4 gosd g D 4.1 4.8 5.4 analog osd gain gosd b D (note t 27 ) 4.1 4.8 5.4 times gosd g / r D g / r 0.94 1.00 1.06 analog osd gain triaxial difference gosd b / r D b / r 0.94 1.00 1.06 D gfosd r D 25 30 D gfosd g D 25 30 D analog osd band width gfosd b D at ? 3db point 25 30 D db v osd1r D 1.80 2.00 2.20 v osd1g D 1.80 2.00 2.20 v osd1b D 1.80 2.00 2.20 v osd2r D 1.45 1.65 1.85 v osd2g D 1.45 1.65 1.85 analog osd white peak slice level v osd2b D (note t 28 ) 1.45 1.65 1.85 v p-p
TA1276AN 2002-03-29 31 characteristic symbol test cir- cuit test condition min typ. max unit v osd3r D 2.10 2.26 2.42 v osd3g D 2.10 2.26 2.42 analog osd black peak limiter level v osd3b D (note t 29 ) 2.10 2.26 2.42 v osddcr D 2.3 2.5 2.7 v osddcg D 2.3 2.5 2.7 analog osd output dc voltage v osddcb D (note t 30 ) 2.3 2.5 2.7 analog osd mode on voltage v osdon D pin 36 2.05 2.30 2.55 v osdacl1 D D 0 D osdacl2 D D 0 D osdacl3 D ? 6.5 ? 4.5 ? 2.5 osd acl characteristic osdacl4 D (note t 31 ) ? 16.5 ? 15 ? 13.5 crosstalk of rgb inputs gct D D D ? 50 ? 45 db color difference section characteristic symbol test cir- cuit test condition min typ. max unit vucy ma x D 1.5 1.8 2.13 vucy cnt D 0.85 1.0 1.2 vucy min D 0.24 0.29 0.355 v p-p color difference signal contrast control characteristic ? vucy D (note a 1 ) 14.0 15.5 17.0 db vucy max D 1.18 1.4 1.68 vucy cnt D 0.73 0.86 1.04 vucy min D 0.076 0.090 0.108 v p-p ? vucy+ D 3 4 5 color control characteristic ? vucy ? D (note a 2 ) ? 20 ? 18 ? 16 db 00 r 90 D 88 90 92 01 r 93 D 90 92 94 10 r 96 D 92 94 96 r - y relative phase 11 112 D D 109 111 113 00 vr 56 / vb D 0.55 0.58 0.61 01 vr 68 / vb D 0.67 0.7 0.73 10 vr 76 / vb D 0.78 0.81 0.84 r - y relative amplitude 11 vr 84 / vb D D 0.85 0.88 0.91 times 00 g 236 D 234 237 240 01 g 240 D 238 241 244 10 g 244 D 242 245 248 g - y relative phase 11 g 253 D D 251 254 257 00 vg 30 / vb D 0.275 0.300 0.325 01 vg 325 / vb D 0.300 0.325 0.350 10 vg 35 / vb D 0.325 0.350 0.375 g - y relative amplitude 11 gv 375 / vb D D 0.350 0.375 0.400 r ght ry D 0.47 0.50 0.53 g ght gy D 0.47 0.50 0.53 color difference half-tone gain b ght by D (note a 3 ) 0.47 0.50 0.53 times
TA1276AN 2002-03-29 32 characteristic symbol test cir- cuit test condition min typ. max unit v 1 D 0.09 0.23 0.37 v 2 D 0.23 0.37 0.51 v 3 D 0.38 0.52 0.66 v p-p color characteristic ? D (note a 4 ) 0.65 0.75 0.85 D clt0 D 1.45 1.65 1.85 color limiter characteristic clt1 D (note a 5 ) 1.8 2.0 2.2 v p-p high bright color gain hbc1 D (note a 6 ) 0.02 0.04 0.06 times tr max D r 29 33 37 max tb max D b 29 33 37 tr min D r ? 37 ? 33 ? 29 base band tint control characteristic min tb min D b ? 37 ? 33 ? 29 flesh color characteristic fa33 D (note a 7 ) 0.38 0.48 0.58 D dr r-y D D 0.9 1.2 1.5 color difference signal input dynamic range dr b-y D 0.9 1.2 1.5 v p-p gcd0 D 15.0 18.0 21.0 color detail emphasis characteristic gcd1 D (note a 8 ) D ? 15.0 0.0 v p-p i u D 31 33 35 phase shift at iq uv conversion q v D D 31 33 35
TA1276AN 2002-03-29 33 def section characteristic symbol test cir- cuit test condition min typ. max unit 32f h vco oscillation start voltage v vco D 3.1 3.4 3.7 horizontal output start voltage vh on23 D def v cc voltage 4.7 5.0 5.3 v horizontal output duty cycle t 23 D pin 23 38.5 40.5 42.5 % f h050 D vertical freq. ; auto 15475 15625 15775 horizontal output free-run frequency f h060 D vertical freq. ; 60hz 15585 15734 15885 f hmin D 14700 15000 15300 variable range of horizontal output frequency f hmax D variable pin 20 voltage 16500 16700 16900 hz horizontal output frequency control sensitivity h D (note d 1 ) 180 230 280 hz / 0.1v high level v h23 D 2.7 3.0 3.3 horizontal output voltage low level v l23 D pin 23 D 0.15 0.30 v sph1 D 11.1 11.3 11.5 sph2 D 0.35 0.45 0.55 horizontal output phase sph3 D (note d 2 ) 0.11 0.21 0.31 curve correction characteristic ? h 24 D (note d 3 ) 2.3 2.5 2.7 variable range of horizontal picture position ? h sft D (note d 4 ) 5.7 6.2 6.7 clamp pulse start phase cp s D 2.8 2.9 3.1 clamp pulse width cp w D (note d 5 ) 1.0 1.2 1.4 v threshold of external clamp pulse input cp v30 D pin 24 3.3 3.6 3.9 threshold of external clamp mode switching cpm v23 D pin 23 8.5 8.7 8.9 v bpv17 D pin 17, at normal scan 0.9 1.1 1.3 threshold of external black peak hold stopping pulse bpv24 D pin 24, at doble scan 0.9 1.1 1.3 D spc gate pulse start phase gp s D 1.9 2.1 2.3 spc gate pulse width gp w D (note d 6 ) 1.9 2.1 2.3 spc horizontal blanking pulse start phase hp s D 4.6 4.8 5.0 hp w50 D 9.9 10.4 10.9 spc horizontal blanking pulse pulse width hp w60 D (note d 7 ) 10.5 11.0 11.5 s
TA1276AN 2002-03-29 34 characteristic symbol test cir- cuit test condition min typ. max unit hd output start phase hd s D 0.7 0.9 1.1 hd output pulse width hd w D 0.7 0.9 1.1 s hd output voltage vh d D (note d 8 ) 4.5 4.8 5.1 threshold of afc-2 detection v hblk1 D pin 25, at normal scan 3.2 3.5 3.8 threshold of horizontal timing v hblk2 D pin 25, at doble scan 3.2 3.5 3.8 threshold of blanking pulse v hblk3 D pin 25, h / v blanking 0.8 1.1 1.4 v vertical blanking pulse start phase vp 50s1 D 46 48 50 s vertical blanking pulse stop phase vp 50s2 D (note d 9 ) D 23 D h vertical blanking pulse start phase vp 60s1 D 46 48 50 s vertical blanking pulse stop phase vp 60s2 D (note d 10 ) D 21 D h external blanking threshold current ablk D pin 31 input current 150 300 400 a vertical output start voltage v on D def v cc voltage 4.7 5.0 5.3 v f v050 D vertical freq. ; auto 40 45 50 vertical output free-run frequency f v060 D vertical freq. ; 60hz 48 53 58 hz v vh D 4.7 5.0 5.3 vertical output voltage v vl D pin 31 D 0.0 0.3 v f pl1 D D 224.5 D vertical pull-in range (1) f ph1 D D 353 D f pl2 D D 224.5 D vertical pull-in range (2) f ph2 D D 297 D vertical pull-in range (3) f 50p D D 288.5 D vertical pull-in range (4) f 60p D (note d 11 ) D 288 D h vr 50s1 D 44 46 48 vg 50s1 D 44 46 48 rgb vertical blanking pulse start phase (1) vb 50s1 D 44 46 48 s vr 50s2 D D 19 D vg 50s2 D D 19 D rgb vertical blanking pulse stop phase (1) vb 50s2 D (note d 12 ) D 19 D h vr 60s1 D 44 46 48 vg 60s1 D 44 46 48 rgb vertical blanking pulse start phase (2) vb 60s1 D 44 46 48 s vr 60s2 D D 17 D vg 60s2 D D 17 D rgb vertical blanking pulse stop phase (2) vb 60s2 D (note d 13 ) D 17 D h
TA1276AN 2002-03-29 35 test conditions test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions video block video block common test conditions 1) sw 13 : a, sw 18 : on, sw 20 : on, sw 23 : on, sw 33 : a, sw 34 : a, sw 35 : a, sw 37 : a, sw 38 : a, sw 39 : a, sw 46 : on, sw 51 : b, sw 52 : b 2) for testing, see the picture sharpness ac characteristics testing circuit diagram. after using the preset values to transmit the bus control data, set acb operation switching to acb off (01). 3) ensure the composite signal is always input to pin 15 (y 1 / sync input). v 1 black detect level shift c off c c 1) set the bus control data to the preset value. 2) connect pin 53 to an external power supply (ps) and observe pin 50. 3) turn the y mute off (1), turn the black stretch gain off (1), and set the black detect level to 0ire (1). 4) increase the ps voltage from 5v and measure the dc differential vb of pin 49 where the picture period (high period) of pin 50 goes low. 5) set the black detect level to 3ire (0). 6) as in 4), measure the dc differential vb3 of pin 49. v 2 black stretch amp maximum gain a a 1) set the bus control data to the preset value. 2) set sw50 to a (maximum gain) and input a 500khz sine wave to tp53. 3) use pin 53 to adjust the signal amplitude to 0.1vp-p. 4) turn the y mute off (1), turn the black stretch gain off (1), and measure the amplitude va of pin 49. 5) turn the black stretch gain on (0) and measure the amplitude vb of pin 49. 6) calculate the g bs using the following formula. g bs = vbva
TA1276AN 2002-03-29 36 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 3 black stretch start point (1) c off a c 1) set the bus control data to the preset value. 2) set sw 50 to a (maximum gain), turn the y mute off (1), and turn the black stretch gain off. 3) connect pin 53 to an external power supply (ps), increase the voltage from v 53 , and plot the resulting change in voltage s 1 of pin 49. 4) next, turn the black stretch gain on (0), set the black stretch point 1 to the minimum (000), increase the ps voltage from v 53 as in 3), and plot the resulting change in voltage s 2 of pin 49. 5) set the black stretch point 1 to the maximum (111), increase the ps voltage from v 53 as in 3), and plot the change in voltage s 3 of pin 49. 6) use the diagram below to calculate the intersections v bst1 and v bst2 of s 1 , s 2 , and s 3 . use the following formulas to calculate p bst1 and p bst2 . p bst1 [(ire)] = ((v bst1 [v] ? v 49 [v]1.4 [v])100 [(ire)] p bst2 [(ire)] = ((v bst2 [v] ? v 49 [v]1.4 [v])100 [(ire)]
TA1276AN 2002-03-29 37 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 4 black stretch start point (2) c on a a 1) set the bus control data to the preset value. 2) turn the black stretch gain off (1), turn the y mute off (1), and turn the video mute off (0). input the tg7 linearity to tp53, use pin 53 to adjust the amplitude as in the diagram, set unicolor to the center (1000000), and measure the resulting amplitude (v 43 ) of pin 43 (r out). 3) turn the black stretch gain on (0), connect pin 49 to an external power supply (ps), and measure pin 43 (r out). 4) when the black stretch start point 2 data are at the minimum (000), calculate as in the diagram the black stretch start point differential ? v 000 for when p is v 49 (apl 0%) and for when p is v 49 +1.0 [v] (apl 100%). 5) next, when the black stretch start point 2 data are maximum (111), calculate differential ? v 111 in the same way. 6) calculate the following formulas. p bs1 = ( ? v 000 / v 43 )100 p bs2 = ( ? v 111 / v 43 )100
TA1276AN 2002-03-29 38 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 5 d.abl detect voltage c off a c 1) set the bus control data to the preset value. 2) turn the y mute off (1), set the abl sensitivity to the minimum (000), set the d.abl sensitivity to the maximum (111), and turn the black stretch gain off (1). 3) connect pin 45 to an external power supply (ps) and decrease the voltage from 6.5v. 4) repeat 3) when the d.abl detect voltage bus data are 000, 001, 010, and 100 respectively. measure ps voltages v 000 , v 001 , v 010 , and v 100 when the picture period of pin 49 changes to low. (enlarge the range before measuring.) 5) next, calculate the ? v 001 , ? v 010 , and ? v 100 voltage differentials from v 000 and v 001 , v 010 , and v 100 . ? v *** = v 000 ? v 001 (v 010 , v 100 )
TA1276AN 2002-03-29 39 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 6 d.abl sensitivity c on a c 1) set the bus control data to the preset value. 2) turn the y mute off (1), turn the black stretch gain off (1), and connect pin 45 to an external power supply. 3) with the d.abl detect voltage at the minimum (000), plot the voltage characteristics of pin 49 in relation to the voltage of pin 45 when d.abl sensitivity is at the minimum (000) and the maximum (111). 4) from the diagram, calculate the s damin and s damax gradients. s damin , s damax = ? y / ? x v 7 black level compensation off 1) set the bus control data to the preset value. 2) turn the y mute off (1), turn the black stretch gain off (1), and observe pin 49. 3) turn the black level compensation on (1), measure ? v 1 [mv], and calculate the following formula. b lc = ( ? v 1 / 1.410 3 )100 (ire)
TA1276AN 2002-03-29 40 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 8 black peak detect level c on c c 1) set the bus control data to the preset value. 2) measure the dc voltage v 49 of pin 49. 3) connect pin 53 to an external power supply (ps). 4) turn the y mute off (1), the black stretch gain off (1), and set the black detect level shift to 0ire (1). 5) increase the ps from 0v and measure the voltage v bp of pin 49 where the dc level of the picture period of pin 50 shifts from high to low. 6) calculate ? v bp from the following formula. ? v bp = v bp ? v 49
TA1276AN 2002-03-29 41 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 9 dc transmission rate compensation gain c on b c 1) set the bus control data to the preset value. 2) turn the y mute off (1), turn the video mute off (0), and connect pin 53 to an external power supply (ps). 3) measure the amplitude v 43 of pin 43, set the ps to v 53 +0.7v, and adjust v 43 to 0.7v p-p using unicolor. 4) with the dc transmission rate compensation gain at the minimum (000), measure ? v 1 and ? v 2 as in the diagram below. 5) next, with the dc transmission rate compensation gain at the maximum (111), measure ? v 3 and ? v 4 . 6) calculate adt100 and adt130 from the following formula. adt100 = ( ? v 2 [v] ?? v 1 [v])0.1 [v] adt130 = ( ? v 4 [v] ?? v 3 [v])0.1 [v]
TA1276AN 2002-03-29 42 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 10 dc transmission compensation start point c on b c 1) repeat steps 1) and 2) of v 21 . 2) measure the amplitude v 43 of pin 43, set the ps to v 53 +0.7v, and adjust v 43 to around 1.0v p-p using unicolor. 3) with the dc transmission compensation rate at the minimum (000), increase ps from v 53 and plot the relationship between the voltages of pins 49 and 43. 4) next, with the dc transmission compensation rate at the maximum (111), increase ps from v 53 and plot the relationship between the voltages of pins 49 and 43. 5) with the dc transmission compensation rate at the maximum (111), increase the ps from v 53 when the dc transmission compensation start point reaches the maximum (111) and plot the relationship between the voltages of pins 49 and 43. 6) calculate v dt0 and v dt42 from the following formula. v dt0 = ((v sp0 ? v 49 ) / 1 [v] )100 [%] v dt42 = ((v sp42 ? v 49 ) / 1 [v] )100 [%]
TA1276AN 2002-03-29 43 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 11 dc transmission compensation limit point c on b c 1) set the bus control data to the preset value. 2) turn the y mute off (1), turn the video mute off (0), and with the unicolor set at maximum (1111111), connect pin 49 to an external power supply (ps). 3) set the dc transmission compensation rate to the maximum (111). 4) increase the ps from 5v, observe pin 43, and plot the dc transmission compensation rate. 5) repeat 4) above but change the dc transmission compensation limit point data. calculate p dtl60 , p dtl73 , p dtl87 , and p dtl100 from the measured data and the following formulas. p dtl60 = ((v l60 ? v 49 ) / 1.0)100 [%] p dtl73 = ((v l73 ? v 49 ) / 1.0)100 [%] p dtl87 = ((v l87 ? v 49 ) / 1.0)100 [%] p dtl100 = ((v l100 ? v 49 ) / 1.0)100 [%]
TA1276AN 2002-03-29 44 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 12 picture sharpness control range c off b a 1) set the bus control data to the preset value. 2) input a sine wave to tp53. 3) set the amplitude of pin 53 to 20mv p-p . 4) set the unicolor to the maximum (1111111), set shr tracking to srt-gain low (11), and set the aperture compensator peak frequency to 4.2m (001). 5) turn the y mute off (1), the video mute off (0), connect tp43 and tp41b, and observe tp41e. 6) set the picture sharpness to the maximum (1111111). when the frequencies are 100khz and f apl01 , measure the v 100 and v l amplitudes respectively and calculate g maxl by the formula shown below. 7) next, set the picture sharpness to the minimum (0000000). as in 6), when the frequencies are 100khz and 2.4mhz, measure the v 100 and v l amplitudes respectively and calculate g minl by the formula shown below. 8) set the aperture compensator peak frequency to 7.7m (111) and the picture sharpness to the maximum (1111111). when the frequencies are 100khz and f aph11 , measure the v 100 and v h amplitudes respectively and calculate g maxh by the formula shown below. 9) next, set the picture sharpness to the minimum (0000000). when the frequencies are 100khz and 4mhz, measure the v 100 and v h amplitudes respectively and calculate g minh by the following formula. g **** [db] = 20log (v l (h) v 100 ) v 13 ynr characteristics 1) repeat steps 1) to 5) of v 12 . 2) with ynr on (1) and the picture sharpness at minimum (0000000), measure the tp41e amplitudes v 100 and v l when the input signal frequencies are 100khz and 2.4mhz respectively. 3) next, set the aperture compensator peak frequency to 7.7m (111). when the input signal frequencies are 100khz and 4mhz, measure the v 100 and v h amplitudes respectively and calculate g yl and g yh by the following formula. g yl (h) [db] = 20log (v l (h) v 100 )
TA1276AN 2002-03-29 45 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 14 2t pulse response srt control c on b a 1) set the bus control data to the preset value. 2) input a 2t pulse (std) signal to tp53, turn the y mute off (1), turn the video mute off (0), set unicolor to maximum (1111111), and set shr tracking to srt-gain low (11). 3) set the sharpness control to the center (1000000), set the aperture compensator peak frequency to 4.2m (001), connect tp43 and tp41b, and observe tp41e. 4) measure t sl1 as in the diagram below. 5) set shr tracking to srt-gain high (00) and measure t sl2 . 6) next, set the aperture compensator peak frequency to 7.7m (111) and measure t sh1 and t sh2 as above. 7) calculate the following formula. t srtl = t sl1 ? t sl2 t srth = t sh1 ? t sh2
TA1276AN 2002-03-29 46 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 15 vsm gain c on b a 1) set the bus control data to the preset value. 2) input the frequency f vl sine wave to tp53. 3) turn the y mute off (1), turn the video mute off (0), set the aperture compensator peak frequency to 4.2m (001), and set the amplitude of pin 53 to 0.1v p-p . 4) measure the tp48 amplitudes v l00 , v l01 , v l10 , and v l11 in the following cases. vsm gain 0db (00) v l (h) 00 ? 6db (01) v l (h) 01 ? 9db (10) v l (h) 10 off (11) v l (h) 11 5) input the sine wave of frequency f vh to tp53, set the aperture compensator peak frequency to 7.7m (111), and measure the tp48 amplitudes v h00 , v h01 , v h10 , and v h11 as above. 6) calculate the following formulas. g vl (h) 00 = 20log (v l (h) 00 / 0.1) [db] g vl (h) 01 = 20log (v l (h) 01 / 0.1) [db] ? 20log (v l (h) 00 / 0.1) [db] g vl (h) 10 = 20log (v l (h) 10 / 0.1) [db] ? 20log (v l (h) 00 / 0.1) [db] g vl (h) 11 = 20log (v l (h) 00 / 0.1) [db]
TA1276AN 2002-03-29 47 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 16 vsm horizontal parabola modulation gain c on b a 1) repeat steps 1) to 3) of v 15 . 2) turn on the vsm output horizontal parabola modulation (1) and set the vsm gain to 0db (00). 3) as in the diagram, measure the picture period amplitudes vcl, vrl, and vll of tp48. 4) next, input the sine wave of frequency f vh to tp53, set the aperture compensator peak frequency to 7.7m (111), set the vsm horizontal parabola frequency to 31.5k (10), and measure the picture period amplitudes vch, vrh, and vlh of tp48 as above. 5) calculate g vrl , g vll , g vrh , and g vlh from the following formulas. g vrl (h) = 20log (vrl (h) / vcl (h)) g vll (h) = 20log (vll (h) / vcl (h)) 6) in 3) and 4) above, turn the vsm output horizontal parabola modulation off (0) and check that no parabola modulation is generated on the picture period signal. (vpofl, vpofh)
TA1276AN 2002-03-29 48 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 15 sw 49 sw 50 sw 53 test conditions v 17 vsm high-speed mute response time c on b a 1) repeat steps 1) to 3) of v 15 , then observe pin 48. 2) input a pulse like that shown below to pin 32 and measure the response time t vml1 (2) at that input. 3) similarly, input the pulse to pin 36 and measure the response time t vml3 (4) at that input. 4) input the sine wave of frequency f vh to tp53, set the aperture compensator peak frequency to 7.7m (111), and measure the response time t vmh1 (2) as in 2) above. 5) similarly, input the pulse to pin 36 and measure the response time t vmh3 (4) at the input.
TA1276AN 2002-03-29 49 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) subaddress switching mode note parameter 07 10 17 18 sw 5 sw 6 sw 13 sw 15 test conditions chroma block chroma block common test conditions sw 13 : b, sw 15 : c, sw 18 : on, sw 20 : on, sw 23 : on, sw 24 : on, sw 25 : on, sw 33 : a, sw 34 : a, sw 35 : a,sw 37 : a, sw 38 : a, sw 39 : a, sw 46 : on c 1 acc characteristics 80 00 00 00 open open b a 1) input 3.58-ntsc rainbow signal (c-4 signal) burst / chroma signals with the same burst / chroma amplitude to the chroma input pin (tp13). 2) measure the output amplitudes f 10 , f 30 , f 300 , and f 600 of the uq output pin 5 when the chroma input amplitude levels are set to 10, 30, 300, and 600mv p-p . 3) calculate a = f 30 / f 300 . c 2 apc frequency control sensitivity a 1) connect sw 13 to a. 2) switch the color system mode (10) to 3.58 ntsc (00), 4.43 pal (60), and m-pal (80) and measure the following for each of those cases. 3) connect external voltage source (v 11 ) to apc filter pin 11. 4) vary the voltage of the external voltage source (v 11 ) and observe the fsc output pin 1 using a frequency counter. 5) measure the free-run sensitivity for the v 11 + ? v 11 (100mv) near the f c . (3.5 ntsc = 3 , 4.3 ; pal = 4 ; m-pal = m ) c 3 apc pull-in and hold range 1) input 3.579545mhz, 4.433619mhz, and 3.575611mhz continuous waves (200mv p-p to the chroma input pin (tp13). 2) switch the color system mode (10) to 3.58 ntsc (00), 4.43 pal (60), and m-pal (80), and measure the following for each of those cases. 3) vary the input signal frequency in 10hz-steps within a range of 3khz. 4) clamp b / w color mode (f*p*).while holding color b / w mode (f*h*), measure the deviations from the frequency at each continuous wave input.
TA1276AN 2002-03-29 50 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) subaddress switching mode note parameter 07 10 17 18 sw 5 sw 6 sw 13 sw 15 test conditions c 4 secam output dc level change 80 c 0 00 or 30 or 60 00 open open a a 1) connect sw 13 to a. 2) measure the output dc level of the secam control pin 3 when the color system mode (10) is switched to 3.58 ntsc (00), 4.43 pal (30), and secam (60). (3.58 ntsc mode: sen) (4.43 pal mode: sep) (secam mode: ses) c 5 ntsc ident sensitivity c 0 or d 0 00 b 1) input a 3.58-ntsc rainbow (c-4 signal) burst / chroma signal with the same burst / chroma amplitudes to the chroma input pin (tp13). 2) observe the bus read mode (5th and 6th bits of the 1st byte). 3) switch the indent sensitivity (set the subaddress (10) data low (c 0 ) and high (d 0 )) and perform the following measurements. 4) increase the input signal amplitude from 0 and measure the input signal amplitude at the switch to 3.58 ntsc mode. (low (c 0 ) : vn cl , high (d 0 ) : vn ch ) 5) lower the input signal amplitude from 100mv p-p and measure the input signal amplitude at the deviation from 3.58 ntsc mode. (low (c 0 ) : vn bl , high (d 0 ) : vn bh )
TA1276AN 2002-03-29 51 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) subaddress switching mode note parameter 07 10 17 18 sw 5 sw 6 sw 13 sw 15 test conditions c 6 pal ident sensitivity 80 c 0 or d 0 00 00 open open b a 1) input a 4.43-pal rainbow (c-4 signal) burst / chroma signal with the same burst / chroma amplitude to the chroma input pin (tp13). 2) observe the bus read mode (5th and 6th bits of the 1st byte). 3) switch the indent sensitivity (set the subaddress (10) data low (c 0 ) and high (d 0 )) and perform the following measurements. 4) increase the input signal amplitude from 0 and measure the input signal amplitude at the switch to 4.43 pal mode. (low (c 0 ) : vp cl , high (d 0 ) : vp ch ) 5) lower the input signal amplitude from 100mv p-p and measure the input signal amplitude at the deviation from 4.43 pal mode. (low (c 0 ) : vp bl , high (d 0 ) : vp bh ) c 7 tof characteristics 00 or 60 38 1) input the signal c-1 to the chroma input pin. (signal amplitude = 50mv p-p ). 2) when the subaddress (10) data are f 0 = 3.58mhz (00) and f 0 = 4.43mhz (60), and subaddress (18) data are (38), connect 1.5k ? between the v i output pin 6 and the 5v-v cc and observe the v i output pin 6. 3) measure the output amplitude when f 0 = 3.58mhz and calculate the gain in decibels from the input (gf c3 ). 4) measure the output amplitude when f 0 = 3.58mhz500khz and calculate the gain in decibels from the input (+500khz : gf h3 , ? 500khz : gf l3 ). 5) measure the output amplitude when f 0 = 4.43mhz and calculate the gain in decibels from the input (gf c4 ). 6) measure the output amplitude when f 0 = 4.43mhz500khz and calculate the gain in decibels from the input (+500khz : gf h4 , ? 500khz : gf l4 ).
TA1276AN 2002-03-29 52 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions text block text block common test conditions sw 13 : a, sw 15 : c, sw 18 : on, sw 20 : on, sw 23 : on, sw 24 : on, sw 25 : on t 1 ac gain a a a a a a b b a 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53. 2) measure the picture period amplitude of pins 41, 42, 43 (v41, v42, and v43). 3) g r = v43 / 0.2 g g = v42 / 0.2 g b = v41 / 0.2 t 2 unicolor adjustment characteristics 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53. 2) set the unicolor data to maximum (7f), center (40), and minimum (00) and measure the pin 43 picture period amplitudes for each case. (v u max, v u cnt, v u min) 3) calculate the unicolor maximum and minimum amplitude ratios using digital conversion. ( ? v u ) t 3 brightness adjustment characteristics 1) input signal 2 to pin 53 and adjust the picture period amplitude output of pin 43 to 1v p-p . 2) measure the voltage of pin 43 when the brightness is changed to maximum (ff), center (80), and minimum (00). (vbrmax, vbrcnt, vbrmin) t 4 brightness sensitivity 1) using the results obtained from t 3 , calculate the brightness sensitivity from the following formula. 2) gbr = (vbrmax ? vbrmin) / 256 t 5 white peak slice level 1) change the bus data and set the sub-contrast to maximum. 2) connect an external power supply to pin 53 and increase the voltage gradually from 5.8v. 3) measure the picture period amplitude voltage of pin 43 when pin 43s picture period is clipped (vwps1). 4) change the subaddress (05) data to (81) and repeat steps 1) to 3) above. (vwps2)
TA1276AN 2002-03-29 53 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 6 black peak slice level a a a a a a b b c 1) repeat step 1) of t 5 . 2) connect an external power supply to pin 53 and decrease the voltage gradually from 5.8v. 3) measure the voltages of pins 41, 42, and 43 when their picture periods are clipped. t 7 half tone characteristics a 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53. 2) measure the picture period amplitude of pin 41 (v41 a ). 3) apply 1.5v from an external power supply to pin 47. 4) measure the picture period amplitude of pin 41 (v41 b ). 5) g ht1 = v41 b / v41 a 6) halt the voltage applied to pin 47, set the subaddress (03) data to (81), and measure the picture period amplitude of pin 41 (v41 c ). 7) g ht2 = v41 c / v41 a t 8 blk pulse delay time c 1) calculate t don , t doff from the signal applied to pin 25 (h.blk input) (a below) and the output signals from pins 41, 42, and 43 (b below). (a) signal applied to pin 25 t 9 rgb output voltage 1) measure the picture period voltages for pins 41, 42, and 43. (b) output signals from pins 41 , 42, 43
TA1276AN 2002-03-29 54 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 10 cutoff voltage variable range a a a a a a b b c 1) set the subaddress (17) data to (07). 2) measure the picture period voltage of pin 43 when the cutoff (subaddress 0c) data are changed to maximum (ff), center (80), and minimum (00), and calculate the amount of change of maximum and minimum from the center. (cut+, cut ? ). 3) in steps 1) and 2) above, make the following changes and remeasure : change the subaddress (0d) data and measure pin 42, change the subaddress (0e) data and measure pin 41. t 11 drive adjustment variable range a 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53. 2) measure the picture period amplitude of pin 42 when the drive (subaddress-09) data are changed to maximum (fe), center (80), and minimum (00). 3) calculate the maximum and minimum amplitude ratios for the drive center using decibel conversion. (drg+, drg ? ) 4) in steps 1) to 3) above, change the subaddress (0a) data, measure pin 41, and repeat the calculations. (drb+, drb ? ) 5) in steps 1) to 3) above, set data of the lsb of subaddress (09) to 1, measure pin 43, and repeat the calculations. (drr+, drr ? ) t 12 output voltage during muting c 1) set the subaddress (00) data to (ff). 2) measure the picture period voltages of pins 43, 42, and 41. (murd, mugd, mubd) t 13 output voltage at blue back 1) set the subaddress (10) data to (08). 2) measure the picture period voltages of pins 43 and 42 and the picture period amplitude of pin 41. (bb r , bb g , bb b )
TA1276AN 2002-03-29 55 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 14 acl characteristics a a a a a a b b a 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53. 2) measure the picture period amplitude of pin 43 (v acl1 ). 3) measure the picture period amplitude of pin 43 when ? 0.5v dc is applied to pin 45 from an external power supply. (v acl2 ) 4) measure the picture period amplitude of pin 43 when ? 1v dc is applied to pin 45 from an external power supply. (v acl3 ) 5) acl1 = ? 20 ? og (v acl2 / v acl1 ) acl2 = ? 20 ? og (v acl3 / v acl1 ) t 15 abl point 1) measure the dc voltage of pin 45. (vabl1) 2) set the subaddress (16) data to (1c). 3) applying external voltage to pin 45, lower the pin voltage from 6.5v. measure the voltage of pin 45 when the voltage of pin 43 starts to change. (vabl2) 4) change the data of subaddress (16) to (3c), (5c), (7c), (9c), (bc), (dc), and (fc), and repeat step 3) for each of these data.(vabl3, vabl4, vabl5, vabl6, vabl7, vabl8, vabl9) 5) abl p1 = vabl2 ? vabl1, abl p5 = vabl6 ? vabl1 abl p2 = vabl3 ? vabl1, abl p6 = vabl7 ? vabl1 abl p3 = vabl4 ? vabl1, abl p7 = vabl8 ? vabl1 abl p4 = vabl5 ? vabl1, abl p8 = vabl9 ? vabl1
TA1276AN 2002-03-29 56 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 16 abl gain a a a a a a b b c 1) apply 6.5v from an external power supply to pin 45. 2) set the subaddress (16) data to (00). set the brightness to the maximum. 3) measure the voltage of pin 43. (vabl10) 4) apply 4.5v from an external power supply to pin 45. 5) change the data of subaddress (16) to (00), (04), (08), (0c), (10), (14), (18), and (1c), and repeat step 3) for each of these data.(vabl11, vabl12, vabl13, vabl14, vabl15, vabl16, vabl17, vabl18) 6) abl g1 = vabl11 ? vabl10, abl g5 = vabl15 ? vabl10 abl g2 = vabl12 ? vabl10, abl g6 = vabl16 ? vabl10 abl g3 = vabl13 ? vabl10, abl g7 = vabl17 ? vabl10 abl g4 = vabl14 ? vabl10, abl g8 = vabl18 ? vabl10 t 17 rgb output mode 1) adjust the brightness so that the picture period voltage of pin 43 is set to 2.5v. 2) set the subaddress (16) data to (01). 3) measure the picture period voltages of pins 43, 42, and 41. (v43 r , v42 r , v41 r ) 4) change the subaddress (16) data to (02) and repeat step 3). (v43 g , v42 g , v41 g ) 5) change the subaddress (16) data to (03) and repeat step 3). (v43 b , v42 b , v41 b )
TA1276AN 2002-03-29 57 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 18 acb insertion pulse phase and amplitude a a a a a a b b a or c 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53 and adjust the drive adjustment data so that the picture period amplitudes of pins 41 and 42 are equal to that of pin 43. 2) set sw 53 to c. 3) measure the voltages of pins 29, 30, and 55. from an external power supply, apply the measured voltages to these pins. 4) set subaddress (15) data to (d 2 ). 5) from pins 43, 42, and 41, calculate the phase of the acb insertion pulse in accordance with fig.1 below. (note) after the completion of v.blk, the video period following the falling edge of the fbp input is regarded as 1h and the periods at each completion of h.blk are counted as 2h, 3h, 4h. 6) measure the acb insertion pulse amplitude (the level from the picture period amplitude at no input) of pins 43, 42, and 41.
TA1276AN 2002-03-29 58 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 19 rgb characteristics a a a a a a b b a 1) input a ramp waveform to pin 53 and adjust the input amplitude so that the picture period amplitude of pin 43 is 2.3v p-p . 2) adjust the drive adjustment data so that the picture period amplitudes of pins 41 and 42 are equal to that of pin 43. 3) set the subaddress (14) data to (10). 4) from pins 43, 42, and 41, calculate the rgb start point and its gradient (decibel conversion) in relation to the off point in accordance with fig.1.
TA1276AN 2002-03-29 59 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 20 analog rgb gain a or b a or b a or b a a a b b a 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53 and adjust the drive adjustment data so that the picture period amplitudes of pins 41 and 42 are equal to that of pin 43. 2) apply 5v from an external power supply to pin 32. 3) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 35. 4) measure the picture period amplitude of pin 43. (v43 r ) 5) as in steps 2) and 3) above, input to pin 34 and measure pin 42, then input to pin 33 and measure pin 41. (v42 g , v41 b ) 6) g txr = v43 r / 0.2 g txg = v42 g / 0.2 g txb = v41 b / 0.2 t 21 analog rgb white peak slice level a a a 1) repeat step 1) of t 20 . 2) apply 5v from an external power supply to pin 32. 3) set the rgb contrast data to the maximum (7f). 4) connect an external power supply to pin 35, increase the voltage gradually from 3.0v, and measure the picture period amplitude voltage when pin 43 is clipped. 5) as in steps 3) and 4) above, input to pin 34 and measure pin 42, then input to pin 33 and measure pin 41. t 22 analog rgb black peak limiter level 1) repeat step 1) of t 20 . 2) apply 5v from an external power supply to pin 32. 3) set the rgb contrast data to the maximum (7f). 4) connect an external power supply to pin 35, decrease the voltage gradually from 4.5v, and measure the voltage when pin 43 is clipped. 5) as in steps 3) and 4) above, input to pin 34 and measure pin 42, then input to pin 33 and measure pin 41.
TA1276AN 2002-03-29 60 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 23 rgb contrast adjustment characteristics a or b a or b a or b a a a b b a 1) repeat step 1) of t 20 . 2) apply 5v from an external power supply to pin 32. 3) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 35. 4) measure the picture period amplitude of pin 43 when the rgb contrast data change to the maximum (7f), the center (40), and the minimum (00). (vutxr max , vutxr cnt , vutxr min ) 5) calculate the maximum and minimum amplitude ratios using decibel conversion. (drg+, drg ? ) 6) as in steps 3), 4) and 5) above, input to pin 34 and measure pin 42, then input to pin 33 and measure pin 41. t 24 analog rgb brightness adjustment characteristics a or b a or b a or b 1) repeat step 1) of t 20 . 2) input signal 2 to pins 33, 34, and 35. 3) apply 5v from an external power supply to pin 32. 4) adjust the signal 2 amplitude a so that the picture period amplitude of pin 43 is 0.5v p-p . 5) measure the picture period voltage of pins 43, 42, and 41 when the rgb brightness change to the maximum (7f), the center (40), and the minimum (00). (vbrtx max , vbrtx cnt , vbrtx min ) t 25 analog rgb brightness sensitivity 1) using the results obtained from t24, calculate the rgb brightness sensitivity for pins 43, 42, and 41. 2) gbrtx = (vbrtx max ? vbrtx min ) / 128
TA1276AN 2002-03-29 61 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 26 text acl characteristics a a b a a a b b a 1) repeat step 1) of t 20 . 2) apply 5v from an external power supply to pin 32. 3) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 35. 4) measure the picture period amplitude of pin 43. (v txacl1 ) 5) measure the picture period amplitude of pin 43 when ? 0.5v dc is applied to pin 45 from an external source. (v txacl2 ) 6) measure the picture period amplitude of pin 43 when ? 1v dc is applied to pin 45 from an external source. (v txacl3 ) 7) txacl1 = ? 20 ? og (v txacl2 / v txacl1 ) txacl2 = ? 20 ? og (v txacl3 / v txacl1 ) 8) set the subaddress (10) data to (01) and repeat the calculations in steps 5) and 6). (txacl3, txacl4) t 27 analog osd gain a a or b a or b a or b 1) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 53 and adjust the drive adjustment data so that the picture period amplitudes of pins 41 and 42 are equal to that of pin 43. 2) apply 5v from an external power supply to pin 36. 3) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 39. 4) measure the picture period amplitude of pin 43. (v43 r ) 5) as in steps 3) and 4) above, input to pin 38 and measure pin 42, then input to pin 37 and measure pin 41. (v42 g , v41 b ) 6) gosd r = v43 r / 0.2 gosd g = v42 g / 0.2 gosd b = v41 b / 0.2
TA1276AN 2002-03-29 62 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 28 analog osd white peak slice level a a a a a a b b a 1) repeat step 1) of t 27 . 2) apply 5v from an external power supply to pin 36. 3) apply external voltage to pin 39, increase the voltage gradually from 0.0v, and measure the picture period amplitude voltage when pin 43 is clipped. (v osd1r ) 4) as in step 3) above, input to pin 38 and measure pin 42. input to pin 37 and measure pin 41. 5) set the subaddress (10) data to (04) and repeat the measurements in steps 3) and 4). (v osd2r , v osd2g , v osd2b ) t 29 analog osd black peak limiter level 1) repeat step 1) of t 27 . 2) apply 5v from an external power supply to pin 36. 3) apply external voltage to pin 39, decrease the voltage gradually from 4.5v, and measure the voltage when pin 43 is clipped. 4) as in step 3) above, input to pin 38 and measure pin 42. input to pin 37 and measure pin 41. t 30 analog osd output dc voltage 1) repeat step 1) of t 27 . 2) apply 5v from an external power supply to pin 36. 3) measure the picture period voltages of pins 43, 42, and 41. (v osddcr , v osddcg , v osddcb )
TA1276AN 2002-03-29 63 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions t 31 osd acl characteristics a a a a a b b b a 1) repeat step 1) of t 27 . set the subaddress (10) data to (02). 2) apply 5v from an external power supply to pin 36. 3) input signal 1 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 39. 4) measure the picture period amplitude of pin 43. (v osdacl1 ) 5) measure the picture period amplitude of pin 43 when ? 0.5v dc is applied to pin 45 from an external source. (v osdacl2 ) 6) measure the picture period amplitude of pin 43 when ? 1v dc is applied to pin 45 from an external source. (v osdacl3 ) 7) osdacl1 = ? 20 ? og (v osdacl2 / v osdacl1 ) osdacl2 = ? 20 ? og (v osdacl3 / v osdacl1 ) 8) change the subaddress (10) data to (00) and repeat the measurements in steps 1) to 7).(osdacl3, osdacl4)
TA1276AN 2002-03-29 64 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions color difference block color difference block common test conditions sw 13 : a, sw 15 : c, sw 18 : on, sw 20 : on, sw 23 : on, sw 24 : on, sw 25 : on a 1 color difference contrast adjustment characteristics a a a a a a a or b a or b c 1) change the g and b drive data to the value resulting from the adjustment in step 1) of t 20 . 2) set the brightness to maximum, set the subaddress (0f) data to (30), and set the subaddress (10) data to (20). 3) input signal 3 (f 0 = 100khz, picture period amplitude = 0.23v p-p ) to pin 51. 4) measure the picture period amplitude of pin 43 when the unicolor data change to the maximum (7f), the center (40), and the minimum (00). (vucy max , vucy cnt , vucy min ) 5) calculate the unicolor maximum and minimum amplitude ratios using decibel conversion. ( ? vucy) 6) repeat steps 3), 4), and 5) above, inputting the picture period amplitude 0.2vp-p to pin 52 and measuring pin 41. a 2 color adjustment characteristics 1) measure the voltage of pin 51. set the brightness to maximum, set the subaddress (0f) data to (30), and set the subaddress (10) data to (20). 2) input signal 3 (f 0 = 100khz, picture period amplitude = 0.115v p-p ) to pin 51. 3) measure the picture period amplitude of pin 43 when the color data are changed to the maximum (7f), the center (40), and the minimum (01). (vccy max , vccy cnt , vccy min ) 4) calculate the color maximum and minimum amplitude ratios for the center using decibel conversion. ( ? vccy+, ? vccy ? ) 5) repeat steps 2) to 4) above, inputting the picture period amplitude 0.1vp-p to pin 52 and measuring pin 41.
TA1276AN 2002-03-29 65 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions a 3 color difference half tone characteristics a a a a a a a or b a or b c 1) set the subaddress (10) data to (20). 2) input signal 3 (f 0 = 100khz, picture period amplitude = 0.2v p-p ) to pin 51. 3) measure the picture period amplitude of the waveform output from pin 43. (vhta ry ) 4) apply 1.5v from an external power supply to pin 47. 5) measure the picture period amplitude of the waveform output from pin 43. (vhtb ry ) 6) ght ry = vhtb ry / vhta ry 7) repeat steps 1) to 5) above with pin 42. ght gy = vhtb gy / vhta gy 8) repeat steps 1) to 5) above, inputting signal to pin 52 and measuring pin 41. ght by = vhtb by / vhta by
TA1276AN 2002-03-29 66 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions a 4 color characteristics a a a a a a b b c 1) set the subaddress (10) data to (20). 2) input signal 2 to pin 51. 3) when the subaddress (07) data are: (80) ? off (82) ? 1on (84) ? 2on (86) ? 3on measure the changes in the amplitude level of the pin 43 output signal at an increase the amplitude a of signal 2 and plot the characteristics. 4) calculate the on gradient ? , using v , which represents the point at which the characteristics become effective, and the gradient of the linear section with off as (1). a 5 color limiter characteristics a 1) measure the voltage of pin 51. 2) set the subaddress (10) data to (20). 3) input signal 2 (picture period amplitude = 0.4v p-p ) to pin 52. 4) measure the picture period amplitude of the pin 43 output signal when the subaddress (07) data are (80) and (81). (clt0, clt1)
TA1276AN 2002-03-29 67 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions a 6 high-brightness color gain a a a a a a b a c 1) set subaddress (10) data to (20). 2) input signal 2 (picture period amplitude = 0.2v p-p ) to pin 52. 3) adjust the color control so that the picture period amplitude output from pin 41 is 1.2v p-p . 4) measure the picture period amplitude of the pin 41 output signal when the subaddress (06) data are (ff). (v 41 ) 5) hbc1 = (1.2 ? v 41 ) / 1.2 a 7 flesh color characteristics a 1) input iq demodulated flesh-bar signals (15-step rainbow signals in the range ? 30 to +240) to pin 52 (q signal) and pin 51 (i signal) as 0.2v p-p . set the brightness to maximum. 2) set subaddress (10) data to (00). 3) measure the signals output from pins 41 and 43 and switch to subaddress (10) data to (06). measure the output signals and calculate the variation characteristics of the color vector phase. 4) draw the vector variation characteristics curve showing the on state from the off state and calculate the gradient in the vicinity of the i axis as fa33. subaddress (08) data (80) off data (81) on
TA1276AN 2002-03-29 68 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 sw 51 sw 52 sw 53 test conditions a8 color detail emphasis a a a a a a a b a 1) connect sg to y-in and input a 4mhz frequency sine wave at 20mv p-p . 2) set the subaddress (02) data to (01). 3) set the subaddress (10) data to (20). 4) set the subaddress (11) data to (02). 5) read the 4mhz amplitude output to pin 43. (v cde0 ) 6) input signal 2 (picture period amplitude = 0.3v p-p ) to pin 51. 7) set the subaddress (02) data to (81). 8) read the 4mhz amplitude output to pin 43. (v cde1 ) (mv p-p ) 9) set the subaddress (0a) data to (81) and read the amplitude of frequency fp output to pin 43. (v cde2 ) (mv p-p ) 10) gcd0 = 20 ? og (|v cde1 ? v cde0 | / 20) gcd1 = 20 ? og (|v cde2 ? v cde0 | / 20)
TA1276AN 2002-03-29 69 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 16 sw 17 sw 18 sw 20 sw 23 sw 25 test conditions def block def block common test conditions sw 13 : a, sw 33 : a, sw 34 : a, sw 35 : a, sw 37 : a, sw 38 : a, sw 39 : a, sw 48 : on, sw 49 : on, sw 51 : b, sw 52 : b, sw 56 : on, bus data = power on reset d 1 horizontal oscillation control sensitivity d b on off a on calculate the pin 23 (h.out) frequency variation rate when the voltage on pin 20 is varied by 0.05v with a horizontal oscillation frequency of 15.734khz. d 2 horizontal sync phase c on measure the phase difference s ph1 of the pin 23 (h.out) waveform in relation to the pin 17 (hd.out) waveform when a 50hz composite video signal is applied to tp15. measure the phase difference s ph2 of the pin 20 waveform in relation to the center of the input signal?s horizontal sync signal also, apply a 60hz composite video signal to pin 15 and measure s ph3 .
TA1276AN 2002-03-29 70 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 16 sw 17 sw 18 sw 20 sw 23 sw 25 test conditions d 3 range of curve correction d c on on a on vary the voltage by 1.5v to 3.5v, apply a 50hz composite video signal to pin tp15, and measure the phase variation of the pin 23 (h.out) waveform. d 4 horizontal screen phase adjustment range under the same conditions as those for d 3 , measure phase variation of the pin 23 (h.out) waveform when subaddress (0b) data d 7 to d 3 are varied by (00000) to (11111).
TA1276AN 2002-03-29 71 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 16 sw 17 sw 18 sw 20 sw 23 sw 25 sw 35 test conditions d 5 clamp pulse start phase pulse width of clamp pulse d c on on a on open apply a 50hz composite video signal to tp15, then measure the phase difference cp s and the pulse width cp w of the pin 35 (r in) waveform in relation to the pin 17 (hd.out) waveform. d 6 gate pulse start phase pulse width of gate pulse D apply a 50hz composite video signal to tp15, then measure the phase difference cp s and the pulse width cp w of the pin 2 (scp) waveform in relation to the pin 17 (hd.out) waveform.
TA1276AN 2002-03-29 72 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 16 sw 17 sw 18 sw 20 sw 23 sw 25 test conditions d 7 horizontal blanking pulse start phase pulse width of horizontal blanking pulse d c on on a on under the same conditions as those for d 6 , measure the phase difference hp s and hp w50 of the horizontal blanking pulse. also measure hp w60 at 60hz. d 8 hd output start phase hd output pulse width hd output amplitude apply a 50hz composite video signal to tp15, then measure the phase difference hp s and the pulse width hp w / v hd of the pin 17 (hd out) waveform in relation to the pin 20 (afc1 filter) waveform.
TA1276AN 2002-03-29 73 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 16 sw 17 sw 18 sw 20 sw 23 sw 25 test conditions d 9 vertical blanking pulse start phase (1) vertical blanking pulse end phase (1) d c on on a on apply a 50hz composite video signal to tp15, then measure the phase difference vp 50s1 and the pulse width vp 50s2 of the pin 2 (scp) waveform in relation to the pin 17 (sync input) waveform. d 10 vertical blanking pulse start phase (2) vertical blanking pulse end phase (2) apply the same conditions as those for d 9 except change the input signal to a 60hz composite video signal and measure the phase difference vp 60s and pulse width vp 60w . vertical pull-in range (1) input a 50hz composite video signal to pin tp15, vary the vertical frequency of this signal in 0.5h-steps, and measure the vertical pull-in range. vertical pull-in range (2) set d 5 to d 3 of subaddress (17) to (001), vary the vertical frequency of a 60hz composite video signal input to pin tp15 in 0.5h-steps, and measure the vertical pull-in range. vertical pull-in range (3) input a 50hz composite video signal to pin tp15, vary the vertical frequency of this signal in 0.5h-steps, and measure the number of hs when d 2 of the 1st byte changes from 0 to 1 in bus read mode.also check that d 1 of the 1st byte is 0 when 1v = 312.5h, when d 1 is 1 in bus read mode, and 1v<311.5 or 1v>313.5h. d 11 vertical pull-in range (4) input a 60hz composite video signal to pin tp15, vary the vertical frequency of this signal in 0.5h-steps, and measure the number of hs when d 2 of the 1st byte changes from 1 to 0 in bus read mode when. also check that d 1 of the 1st byte is 0 when 1v = 262.5h, d 1 is 1 in bus read mode, and 1v<261.5 or 1v>263.5h.
TA1276AN 2002-03-29 74 test conditions (unless otherwise stated, v cc1 = 5v, v cc2 / v cc3 / def v cc = 9v, ta = 253c) switching mode note parameter sw 16 sw 17 sw 18 sw 20 sw 23 sw 25 sw 33 sw 34 sw 35 sw 37 sw 38 sw 39 #32 #36 #47 test conditions d 12 rgb output vertical blanking pulse start phase (1) rgb output vertical blanking pulse end phase (1) d c on on a on a gro-un d apply a 50hz composite video signal to tp15, then measure the phase difference vr 50s1 and the pulse width vr 50s2 of the pin 43 (r.out) waveform in relation to the pin 15 (sync input) waveform. similarly, measure pins 42 and 41. d 13 rgb output vertical blanking pulse start phase (2) rgb output vertical blanking pulse end phase (2) apply the same conditions as those for d 12 except change the input signal to a 60hz composite video signal and measure the phase difference vp 60s1 and pulse width vp 60s2 .
TA1276AN 2002-03-29 75 chroma test signals text / color difference test signals 1) input signal c-1 1) video signal 2) input signal c-2 2) input signal 1 3) input signal c-3 3) input signal 2 4) input signal c-4 4) input signal 3
TA1276AN 2002-03-29 76 vertical output pulse width / vertical output pulse phase variation / vertical output pulse phase range
TA1276AN 2002-03-29 77 rgb vertical blanking pulse start phase / end phase
TA1276AN 2002-03-29 78 test circuit
TA1276AN 2002-03-29 79 application circuit 1-normal scan (3.58ntsc)
TA1276AN 2002-03-29 80 application circuit 2-normal scan (4.43pal / 4.43ntsc / 3.58ntsc)
TA1276AN 2002-03-29 81 application circuit 3-normal scan (4.43pal / 4.43ntsc / 3.58ntsc / secam)
TA1276AN 2002-03-29 82 application circuit 4-normal scan (3.58ntsc / m-pal / n-pal)
TA1276AN 2002-03-29 83 application circuit 5-double scan (3.58ntsc)
TA1276AN 2002-03-29 84 akb application circuit
TA1276AN 2002-03-29 85 package dimensions weight: 5.55g (typ.)
TA1276AN 2002-03-29 86 toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the buyer, when utilizing toshiba products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within specified operating ranges as set forth in the most recent toshiba products specifications. also, please keep in mind the precautions and conditions set forth in the ?handling guide for semiconductor devices,? or ?toshiba semiconductor reliability handbook? etc.. the toshiba products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. unintended usage of toshiba products listed in this document shall be made at the customer?s own risk. the products described in this document are subject to the foreign exchange and foreign trade laws. the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba corporation for any infringements of intellectual property or other rights of the third parties which may result from its use. no license is granted by implication or otherwise under any intellectual property or other rights of toshiba corporation or others. the information contained herein is subject to change without notice. 000707eb a restrictions on product use

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