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TA1275BFNG 2005-03-14 1 toshiba bipolar linear integrated circuit silicon monolithic TA1275BFNG secam demodulator processor the TA1275BFNG is a secam demodulation ic, used in combination with the tb1309 series to achieve a multicolor system. this ic requires very few external parts. features combines with the tb1309 series, which is a video processor, timing controller, and pwm pulse processor for analog lcds built-in bell filter built-in fm demodulator with pll circuit for color demodulation and secam identification dc voltage offset for demodulated signal adjuster input terminals for external r-y / b-y signals pin connection ssop24-p-300-0.65a weight: 0.09 g (typ.) scp in vcc 5v (pulse) 4.43cw-in gate width h/h+v id sw secam id i/o y out bell mon dl mode sw r-y out r-y black cont b-y out b-y black cont n.c. 13 14 15 16 17 18 19 20 21 22 23 24 id filter ext. r-y in vcc 5v (y/c) ext. b-y in gnd f0-adj. filter c in s-low pass sw bell f0-adj. filter y in bell cont n.c. n.c. 12 11 10 9 8 7 6 5 4 3 2 1
TA1275BFNG 2005-03-14 2 block diagram some functional blo cks, circuits or constants may be omitted or simplified in the block diagram for explanatory purposes. 7 14 scp in vcc 5v (pulse) 4.43cw-in gate width h/h+v id sw secam id i/o y out bell mon dl mode sw r-y out r-y black cont b-y out b-y black cont id filter n.c. ext. r-y in vcc 5v (y/c) ext. b-y in gnd f0-adj. filter c in/ s-low pass sw bell f0-adj. filter y in bell cont p/n/s b-y sw p/n/s r-y sw r-y low- pass b-y low- pass r-y de-emp r-y permu b-y de-emp b-y permu r. black cont b. black cont demo low pass s- ident phase- det 4.43m vco f0-adj -det flip/fl op clamp 5.5m- trap 250ns y-dl sys-i/o limit bell- mon f0- shift -dac bell- filter bell- adj- det bell dac logic sw color amp 4.43m- cw gate- width/s w gp/h/v sepa ident amp pulse ref- bias 1/2 trap acc cont low pass sw n.c. n.c. + 16 11 9 10 12 15 2 3 18 21 17 8 23 13 6 19 24 5 22 4 1 20 1v (p-p) p/n 3v b/w 2v 3.95v 1.6v 2.7v
TA1275BFNG 2005-03-14 3 maximum ratings (ta = 25c) characteristic symbol rating unit supply voltage v ccmax 8 v input pin voltage vin gnd - 0.3 ~ vcc + 0.3 v power consumption p d (note) 780 mw power consumption reduction ratio 1 / qja 6.3 mw / c operating temperature t opr ? 30~85 c storage temperature t stg ? 55~150 c note: when using the device at above ta = 25c, decrease the power dissipation by 9.1 mw for each increase of 1c. the absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be exceeded during operation, even for an instant. if any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered, in which case the reliability and lifetim e of the device can no longer be guaranteed. moreover, operations with exceeded ratings may cause breakdown, damage and/or degradation in other equipment. applications using the device should be designed so that no maximum rating will ever be exceeded under any operating conditions. before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in these documents. operating conditions characteristic description min typ. max unit supply voltage pin 2, 15 4.75 5.0 5.25 D y input signal level white: 100%, including sync. 0.9 1.0 1.1 v (p-p) color difference input level burst level 270 300 330 mv (p-p) g level 3.25 4.0 5.0 h level 1.95 2.1 2.6 scp input level v level 1.1 1.25 1.4 v 4.43 mhz cw input level pin 4 200 D D mv (p-p) electrical characteristics (yc v cc / pulse v cc = 5 v, ta = 25c, unless otherwise specified) current consumption pin name symbol test circuit min typ. max unit v cc (y / c) i cc1 D 32.0 38.5 48.1 v cc (pulse) i cc2 D 5.6 6.7 8.4 ma
TA1275BFNG 2005-03-14 4 terminal voltage pin no. pin name symbol test circuit min typ. max unit 4 4.43 mhz cw-in v 4 D 2.50 2.75 3.00 5 id sw v 5 D 2.30 2.50 2.70 6 secam id i / o (killer off) v 6 D 0.00 0.20 0.60 7 y out v 7 D 2.35 2.55 2.75 8 mode sw v 8 D 1.80 2.00 2.20 9 r-y out v 9 D 2.10 2.40 2.70 10 r-y black control v 10 D 2.30 2.50 2.70 11 b-y out v 11 D 2.10 2.40 2.70 12 b-y black control v 12 D 2.30 2.50 2.70 13 s-id filter (killer off) v 13 D 4.25 4.55 4.85 14 ext. r-y in v 14 D 2.40 2.60 2.80 16 ext. b-y in v 16 D 2.40 2.60 2.80 19 f0-adj. filter v 19 D 2.55 3.00 3.45 20 c in v 20 D 3.50 3.70 3.90 22 bell adj. filter v 22 D 2.20 2.50 2.80 23 y in v 23 D 2.30 2.50 2.70 24 bell control v 24 D 4.80 5.00 5.20 v note: the pins numbered 1, 4, 9, 10, 12, 13, 14, 19, 20 and 24 of this product are sensitive to electrostatic discharge. when handling the product, protect the environment to avoid electrostatic discharge.
TA1275BFNG 2005-03-14 5 terminal interface the equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes. pin no. pin name function interface circuit input/output signal 1 scp in the pin for inputting the sand castle pulse (scp) 1 18 2 D 2 vcc 5 v (pulse) v cc pin for logic block D D 3 n.c. (no connection) connect to gnd. D D 4 4.43cw-in gate width the pin for inputting 4.43 mhz of carrier wave for the selfadjustment circuit. input a 500 mv p-p sine wave through a coupling capacitor. the switch for changing the gate pulse width is overlaid on this pin. +200 ns : to v cc thru 33 k ? 0ns : open ? 200 ns : to gnd thru 33 k ? 4 18 15 D
TA1275BFNG 2005-03-14 6 pin no. pin name function interface circuit input/output signal 5 h/h+v id sw the switch pin for selecting the id detection mode. h+v : connected to v cc auto search (h, v, h+v) : opened h : connected to gnd 5 18 2 D 6 secam id i / o the interface pin to the main processor (i.e., tb1309). this input/output interface pin sinks two values of current corresponding to the id level of the secam input signal. strong secam : 420 a secam : 180 a this pin turns the internal/external switch by the input dc voltage. internal : gnd~2.5 v external : 2.5 v~v cc 6 18 15 50 D
TA1275BFNG 2005-03-14 7 pin no. pin name function interface circuit input/output signal 7 y out bell mon the output pin for the y signal. the standard output level is 1.0 v p-p . the 5.5 mhz trap filter and delay line on the y signal processing is controlled by the switch on pin 8. the output signal of the bell filter can be monitored on this pin by switching pin 20 for testing. 7 15 18 D 8 dl mode sw the pin for controlling the y processing mode. to v cc : 5.5 mhz trap open : 5.5 mhz trap + dl to gnd : dl 8 18 15 D
TA1275BFNG 2005-03-14 8 pin no. pin name function interface circuit input/output signal 9 r-y out the output pin for demodulated r-y signal. standard output level is 0.7 v p-p with a standard color bar signal. r-y processor has an lpf to eliminate the carrier components. 9 18 15 D 10 r-y black control the pin for controlling the black offset level. adjusting range is within 30 mv. (this pin should be opened in the case of use with the tb1309as the tb1309 has an iic bus control for secam black alignment.) 10 18 15 D
TA1275BFNG 2005-03-14 9 pin no. pin name function interface circuit input/output signal 11 b-y out the output pin for demodulated b-y signal. the standard output level is 0.56 v p-p . the b-y processor has an lpf to eliminate the carrier components. 11 18 15 D 12 b-y black control the pin for controlling the black offset level. the adjusting range is within 30 mv. (this pin should be opened in the case of use with the tb1309 as the tb1309 has an iic bus control for secam black alignment.) 12 18 15 D
TA1275BFNG 2005-03-14 10 pin no. pin name function interface circuit input/output signal 13 id filter the pin for connecting the secam ident filter capacitor. too large a capacitor causes a time delay obtaining color signal on a picture. yet a weak rf signal performancegrows worse if the capacitor is too small. 13 18 15 D 14 ext. r-y in the input pin for external r-y signal. the gain of the internal amplifier is 0 db. 14 18 15 D 15 vcc 5 v (y/c) the v cc pin for the y/c processing block. D D
TA1275BFNG 2005-03-14 11 pin no. pin name function interface circuit input/output signal 16 ext. b-y in the input pin for the external b-y signal. the gain of the internal amplifier is 0 db. 18 15 16 D 17 n.c. (no connection) connect to gnd. D D 18 gnd the gnd pin. D D 19 f 0 -adj. filter the pin for connecting a capacitor for the automatic adjustment circuit. too large a capacitor causes a time delay obtaining a color signal on the picture. yet picture noise and flickeringoccur if the capacitor is too small. 18 15 19 D
TA1275BFNG 2005-03-14 12 pin no. pin name function interface circuit input/output 20 c in s-low pass sw the chroma signal input pin. apply composite signal through 0.01 f of coupling capacitor. the standard input signal level is 1 v p-p . the bell monitor switch for testing is overlaid on this pin. when this pin is connected to gnd through 27 k ? , the bell filter output is observed on pin 7 (y-out). 18 15 20 D 21 n.c. (no connection) connect to gnd. D D 22 bell f 0 -adj. filter the pin for connecting the filter capacitor for the bell filter f 0 , 4.286 mhz. too large a capacitor causes a time delay on the bell filter f 0 adjustment. yet too small a capacitor causes the picture to be noisy. 18 15 22 D
TA1275BFNG 2005-03-14 13 pin no. pin name function interface circuit input/output signal 23 y in the y signal input pin. apply the composite signal into this pin through a coupling capacitor. the standard input level is 1.0 v p-p . 18 15 23 D 24 bell control the pin for selecting the bell filter f 0 f 0 +70 khz : open ( v cc ) f 0 +35 khz : 20 k ? to gnd ( 1.7 v) f 0 : to gnd ( 0 v) 18 2 24 D
TA1275BFNG 2005-03-14 14 ac characteristics (unless otherwise specified, v cc = 5 v (pins 2 & 15), ta = 25c) rating no. item symbol test circuit test condition min typ. max unit 1 bell/filter f 0 f 0b-c D (note 2) ? 23 0 30 khz 2 bell/filter f 0 variable range f 0b-h f 0b-l D (note 3) +40 +10 +70 +35 +100 +60 khz khz 3 bell/filter q q bel D (note 6) 14 16 18 D 4 color difference output amplitude v bs v rs D (note 7) 0.39 0.5 0.56 0.7 0.73 0.99 v (p-p) v (p-p) 5 color difference relative amplitude r / b-s D (note 8) 1.24 1.35 1.52 D 6 linearity linb linr D (note 12) 93 93 100 100 107 107 % % 7 rising time t rr t rb D (note 13) D D 1.3 1.3 2.0 2.0 s s 8 demodulation hold range h rl h bh D (note 14) D 4.75 3.5 5.2 3.9 D mhz mhz 9 demodulation capture range c rl c bh D (note 15) D 4.75 3.5 5.2 3.9 D mhz mhz 10 killer operation input level e sk e sc D (note 16) 0.15 0.40 0.30 0.65 0.60 1.20 mv (p-p) mv (p-p) 11 black level offset e rr e rb D (note 18) ? 30 ? 30 0 0 +30 +30 mv mv 12 id voltage v 6color v 6b / w D (note 19) 0.12 4.8 0.2 4.9 0.6 5.0 v v 13 id current i 6strongse i 6se i 6b / w D (note 20) 310 133 D 420 180 0 530 225 10 a a a 14 system sw threshold level v 6p / n v 6s D (note 21) 2.3 2.3 2.5 2.5 2.7 2.7 v v 15 color difference output dc level v 9p / n v 11p / n v 9s v 11s D (note 22) 2.3 2.3 2.1 2.1 2.6 2.6 2.4 2.4 2.9 2.9 2.7 2.7 v v v v 16 r-y / b-y color black level control characteristics ? e rr+ ? e rr ? ? e rb+ ? e rb ? D (note 23) 22 ? 30 22 ? 30 26 ? 26 26 ? 26 30 ? 22 30 ? 22 mv mv mv mv 17 ext. color difference gain g extr g extb D (note 24) 0.8 0.8 1.0 1.0 1.2 1.2 D D 18 gate pulse width variable range w gpgnd w gp w gpvcc D (note 26) 1.7 1.9 2.1 1.8 2.0 2.2 1.9 2.1 2.3 s s s 19 y dl characteristics (at 3 mhz) t ydl D (note 27) 180 250 360 D 20 y trap characteristics f 0y5.5 g at f 0 D (note 28) 4.5 D 5.5 -35 6.5 -20 mhz db 21 y input dynamic range dr ys dr ybw D (note 29) 0.9 1.1 1.0 1.25 1.1 1.4 v (p-p) v (p-p) 22 y gain gys gybw D (note 30) 0.7 0.8 0.9 1.0 1.1 1.2 D D
TA1275BFNG 2005-03-14 15 test conditions ( unless otherwise specified, v cc = 5 v (pins 2 & 15), ta = 25c) note item test condition 1 bell / filter f 0 (1) : input a 20 mv p-p sine wave whose frequency is sweep into pin 20. (2) : connect pin 20 to gnd through 27 k ? . (3) : keep pin 24 gnd. (4) : measure the frequency at which the pin 7 output is the greatest, that is, "f 0bel ". (5) : calculate : "f 0b-c " = f 0bel ? 4,286 khz. 2 bell / filter f 0 variable range (1) : input a 20 mv p-p sine wave whose frequency is sweep into pin 20. (2) : connect pin 20 to gnd through 27 k ? . (3) : measure the frequency at which the pin 7 output is the greatest when v cc is 5.5 v / 4.5 v, that is, f 0bel5.5 / f 0bel4.5 . (4) : calculate : "f 0b-h " = f 0belh ? 4,286 khz. "f 0b-l " = f 0bell ? 4,286 khz. 3 bell / filter q (1) : input a 20 mv p-p sine wave whose frequency is sweep into pin 20. (2) : connect pin 20 to gnd through 27 k ? . (3) : pin 24 is gnd. (4) : observe the frequency response of the pin 7 output. (5) : calculate : "q bel " = (max ? 3db band width) / f 0bel . 4 color difference output amplitude (1) : input a 75% color bar (200 mv p-p at r id) into pin 20. (2) : measure the r-y output amplitude at pin 9, that is, "v rs ". (3) : measure the b-y output amplitude at pin 11, that is, "v bs ". 5 color difference relative amplitude calculate : "r / b-s" = v rs / v bs . 6 linearity (1) : input a 75% color bar (200 mv p-p at r id) into pin 20. (2) : measure the amplitude between black and cyan / red, that is, v cyan / v red . (3) : measure the amplitude between black and yellow / blue, that is, v yellow / v blue . (4) : calculate : "linr" = v cyan / v red "linb" = v yellow / v blue 7 rising time (1) : input a 75% color bar (200 mv p-p at r id) into pin 20. (2) : measure the rising time (from 10% to 90%) between green and magenta at pin 9 / pin 11, that is, "t rr " / "t rb ". 8 demodulation hold range 9 demodulation capture range (1) : input a 200 mv p-p , 2 mhz sine wave into pin 20. (2) : increasing the input frequency, measure the frequencies at which demodulated output appears at pin 9, that is, "c rl ", and at which demodulated output disappears at pin 11, that is, "h bh ". (3) : input a 200 mv p-p , 7 mhz sine wave into pin 20. (4) : decreasing the input frequency, measure the frequencies at which demodulated output appears at pin 11, that is, "c bh ", and at which demodulated output disappears at pin 9, that is, "h rl ".
TA1275BFNG 2005-03-14 16 note item test condition 10 killer on/off level (1) : input a 75% color bar (200 mv p-p at r id) into pin 20. (2) : decreasing the input amplitude, measure the amplitude at which demodulated outputs disappear at pin 9 and pin 11, that is, "e sk ". (3) : increasing the input amplitude from 0 mv p-p , measure the amplitude at which demodulated outputs appear at pin 9 and pin 11, that is, "e sc ". 11 black level offset (1) : input a 200 mv p-p non-modulated chrome signal into pin 20. (2) : pin 10 and pin 12 are opened. (3) : measure the difference between picture period and blanking period at pin 9 / pin 11, that is, "e rr " / "e rb ". 12 id voltage (1) : connect the external power supply to pin 13, as shown in the figure. (2) : apply 4.0 v to pin 13, and measure the pin 6 voltage, that is, ?v 6color ?. (3) : apply 2.0 v to pin 13, and measure the pin 6 voltage, that is, ?v 6b / w ?. 13 id current (1) : connect the external power supply to pin 13, as shown in the figure. (2) : apply 5.0 v to pin 13, and measure the pin 6 current, that is, ?i 6strongse ?. (3) : apply 4.0 v to pin 13, and measure the pin 6 current, that is, ?i 6se ?. (4) : apply 2.0 v to pin 13, and measure the pin 6 current, that is, ?i 6b / w ?. 14 system sw threshold level (1) : input a 200 mv p-p , 15 khz sine wave into pin 14 and pin 16. (2) : no input on pin 20. (3) : increasing the pin 6 voltage from 0 v, measure the voltage at which the 15 khz sine wave appears at pin 9 and pin 11, that is, "v 6pin ". (4) : decreasing the pin 6 voltage from 4 v, measure the voltage at which the 15 khz sine wave disappears at pin 9 and pin 11, that is, "v 6s ". 15 color difference output dc level (1) : no input on pin 20. (2) : measure the dc voltage on pin 9 / pin 11 when pin 6 is 4 v, that is, "v 9pin " / "v 11pin ". (3) : measure the dc voltage on pin 9 / pin 11 when pin 6 is 0 v, that is, "v 9s " / "v 11s ". 16 r-y b-y black level control characteristics (1) : input a 75% color bar (200 mv p-p at r id) into pin 20. (2) : measure the difference between the picture period and the blanking period at pin 9 when pin 10 is 5 v / 0 v, that is, e rr+ / e rr ? . (3) : measure the difference between the picture period and the blanking period at pin 11 when pin 12 is 5 v / 0 v, that is, e rb+ / e rb ? . (4) : calculate : " ? e rr+ " = e rr+ ? e rr " ? e rr ? " = e rr ? ? e rr " ? e rb+ " = e rb+ ? e rb " ? e rb ? " = e rb ? ? e rb 6 v - + voltmeter ammeter 4 6 56 ta1275 bfng a - + tb1309fg 15k ? 0.01f
TA1275BFNG 2005-03-14 17 note item test condition 17 ext. color difference gain (1) : input a 200 mv p-p , 15 khz sine wave into pin 14 and pin 16. (2) : supply 4 v to pin 6. (3) : measure the respective output amplitudes at pin 9 and pin 11: v extr and v extb . (4) : calculate : "g extr " = v extr / 200 mv "g extb " = v extb / 200 mv 18 gate pulse width variable range (1) : input a 75% color bar (200 mv p-p at r id) into pin 20. (2) : connecting pin 13 to gnd via 1 k ? , observe the gate pulse at pin 13. (3) : measure the respective gate pulse widths for when pin 4 is opened and for when it is connected to v cc / gnd: "w gp ", "w gpvcc " and "w gpgnd ". 19 y dl characteristics (1) : connect pin 13 to v cc via 10 k ? . (2) : connect pin 8 to gnd. (3) : measure the delay time between pin 23 input and pin 7 output, that is, "t ydl ". 20 y trap characteristics (1) : input a sweep signal with sync. (1 v p-p ). (2) : connect pin 13 to v cc via 10 k ? . (3) : connect pin 8 to v cc . (4) : observing the frequency response at pin 7, measure the frequency at which the attenuation is maximum, that is, "f 0y5.5 "; and measure the attenuation at f 0y5.5 against that at 1 mhz, that is, "g y5.5 ". 21 y input dynamic range (1) : connect pin 13 to v cc via 10 k ? . (2) : increasing the amplitude of the y signal input into pin 23, measure the amplitude at which the output signal from pin 7 begins to be distorted, that is, "dr ys ". (3) : open pin 13. (4) : repeat (2), that is, "dr ybw ". 22 y gain (1) : input a y signal (picture period amplitude: 0.7 v p-p ) into pin 23. (2) : connect pin 13 to v cc via 10 k ? . (3) : measure the gain between pin 23 input and pin 7 output, that is, "g ys ". (4) : open pin 13. (5) : repeat (3), that is, "g ybw ".
TA1275BFNG 2005-03-14 18 test circuit 24 23 22 21 20 18 17 16 15 14 13 scp in vcc 5v (pulse) 4.43cw-in gate width h/h+v id sw system i/o sw y out bell mon dl mode sw r-y out r-y black cont b-y out b-y black cont id filter n.c. p/n r-y in vcc 5v(y/c) p/n b-y in gnd f0 filter c in s-low pass sw bell f0 filter y in bell cont TA1275BFNG (ssop24) n.c. n.c. 1 2 3 4 5 6 7 8 9 10 11 12 r10:50k c14:0.33 f + c15a:33 c15:0.01 r14:75 c20:0.01 r20:27k + c23a:1 + c22:1 + c2a:33 c2:0.01 r24:20k r4:33k c4:0.01 f r6:15k p8 sw8 p10 r12:50k p12 p13 p14 c15:0.33 f r16:75 p15 p19 c19:1 f + p20 p22 vcc(5v) p23 sw4 sw5 p24 p6 p5 p4 p1 + p4a p5a p8a c25:100 c26:0.01 r23:75 r13:1k r13a:10k sw10 sw12 sw6a cw in scp in y out r-y out b-y out r-y in b-y in y in sw20 sw13 ba sw24 ba ba ba ba jumper c in jumper r20a:75 19 c13:0.033 f
TA1275BFNG 2005-03-14 19 application circuit the application circuits shown in this document are examples provided for reference purposes only. thorough evaluation is required in the mass production design phase. by furnishing these examples of application circuits, toshiba does not grant the use of any industrial property rights. 24 23 22 21 20 18 17 16 15 14 13 scp in vcc 5v (pulse) 4.43cw-in gate width h/h+v id sw system i/o sw y out bell mon dl mode sw r-y out r-y black cont b-y out b-y black cont id filter n.c. p/n r-y in vcc 5v(y/c) p/n b-y in gnd f0 filter c in s-low pass sw bell f0 filter y in bell cont TA1275BFNG (ssop24) n.c. n.c. 1 2 3 4 5 6 7 8 9 10 11 12 + 33 f 0.01 f 0.01 f + 1 f + 1 f + 33 f 0.01 f 0.01 f 1 f + vcc(5v) + 100 f 0.01 f cw / system i/o in scp in y out r-y out b-y out 19 0.033 f
TA1275BFNG 2005-03-14 20 outline drawing ssop24-p-300-0.65a unit: mm weight: 0.09 g (typ.)
TA1275BFNG 2005-03-14 21

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