NTE7129 integrated circuit if signal processing (super pll ? ii vif + sif) circuit for tvs & vcrs description: the NTE7129 is an intercarrier ? type vif + sif integrated circuit in a 24 ? lead dip type package that supports excellent sound and image quality. the pin assignment of the NTE7129 is identical to that of the nte7130, allowing the nte7130 to be used for split systems while the NTE7129 is used for intercarrier systems. in addition, the NTE7129 suppresses nyaquist buzz interference by using a pll (phase ? lock loop) detection system with a buzz canceller in order to provide the best sound quality possible. features: excellent buzz and buzz ? beat characteristics due to pll built ? in apc time constant switch duplicate time constant system suited for high ? speed agc excellent dg and dp characteristics rf agc adjustment is simple functions: vif block vif amplifier vco apc filter b/w nc aft if agc pll detector equalizer amplifier lock detection rf agc apc detector buzz canceller sif block limiter amplifier fm quadrature detector mute audio mute (pin2) is ? 15 switch (pin13) av mute (pin4)
absolute maximum ratings: (t a = +25 c unless otherwise specified) maximum supply voltage, v cc max 13.8v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . allowable power dissipation (t a +50 c), p d max 1200mw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circuit voltage, v 3 , v 13 v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circuit voltage, v 14 v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circuit current, i 1 ? 1ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circuit current, i 17 ? 10ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circuit current, i 21 ? 3ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . circuit current, i 10 3ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operating temperature range (note 2), t opr ? 20 to +70 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg ? 55 to +150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . note 1. the current that flows into the ic is positive (no signal); the current that flows out of the ic is negative. note 2. t opr = ? 20 to +75 c at v cc = 9v. recommended operating conditions: (t a = +25 c unless otherwise specified) parameter symbol test conditions min typ max unit recommended supply voltage v cc 9 or 12 v operating supply voltage range v cc op 8.2 ? 13.2 v note 3. always turn on the protective resistance when drawing a line directly out from the ic at usage. (pin2, pin11, pin12, etc.) note 4. a c apacitor with favorable humidity characteristics should be used for pin13. (ex. os capacitor) note 5. pin8 (n.c.) should always be open. electrical characteristics: (t a = +25 c, v cc = 12v unless otherwise specified) parameter symbol test conditions min typ max unit vif block circuit current i 9 v 13 = 5v, s1 = on 42 48 57 ma v cc = 9v 36 41 49 ma no ? signal video output voltage v 21 v 13 = 5v, s1 = on 6.6 7.0 7.4 v v cc = 9v 5.0 5.4 5.8 v maximum rf agc voltage v 10h v 13 = 7v, s1 = off 10.6 11.0 11.4 v v cc = 9v 7.6 8.0 8.4 v minimum rf agc voltage v 10l v 13 = 7v, s1 = on ? 0 0.5 v v cc = 9v ? 0 0.5 v no ? signal aft voltage v 14 v 13 = 5v, s1 = on 3.0 5.9 8.0 v v cc = 9v 2.6 4.5 6.0 v input sensitivity v i s1 = off 33 39 45 db/ v v cc = 9v 37 43 49 db/ v agc range gr s1 = on 60 66 ? db maximum allowable input v i max s1 = on 100 105 ? db/ v video output amplitude v o (video) s1 = on 1.95 2.25 2.55 v p ? p v cc = 9v 1.5 1.75 2.0 v p ? p output s/n s/n s1 = on 49 55 ? db
electrical characteristics (cont?d): (t a = +25 c, v cc = 12v unless otherwise specified) parameter symbol test conditions min typ max unit vif block (cont?d) sync signal tip voltage v 21 (tip) v i = 10mv, s1 = on 4.15 4.45 4.75 v v cc = 9v 3.25 3.55 3.85 v 920khz beat level i 920 p = 0, c = ? 4db, s = ? 14db, s1 = on 37 43 ? db frequency characteristics f c p = 0, s = ? 14db 6 8 ? mhz differential gain dg v i = 10mv, 87.5% mod, f 58 75mhz ? 3 6 % differential phase dp f p = 58.75mhz ? 2 5 deg maximum aft voltage v 14h 11.0 11.5 12.0 v v cc = 9v 8.0 8.5 9.0 v minimum aft voltage v 14l 0 0.4 1.0 v v cc = 9v ? 0.3 1.0 v white noise threshold voltage v wth 8.9 9.3 9.7 v v cc = 9v 6.8 7.2 7.6 v white noise clamp voltage v wcl 5.3 5.7 6.1 v v cc = 9v 4.0 4.4 4.8 v black noise threshold voltage v bth s1 = on 3.4 3.7 4.0 v v cc = 9v 2.5 2.8 3.1 v black noise clamp voltage v bcl s1 = on 5.3 5.7 6.1 v v cc = 9v 3.7 4.1 4.5 v aft detection sensitivity s f 50 70 100 mv/khz v cc = 9v 30 43 60 mv/khz vif input resistance r i (vif) f = 58.75mhz 0.8 1.3 1.75 k ? vif input capacitance c i (vif) f = 58.75mhz ? 3.0 6.0 pf apc pull ? in range f pu ? 2 s1 = on 0.6 1.6 ? mhz f pl ? 2 ? ? 1.6 ? 0.8 mhz vco maximum variable range ? f u v 18 = 3v, s1 = on 0.6 1.6 ? mhz ? f l ? ? 1.6 ? 0.8 mhz vco control sensitivity v 18 = 5v to 2.6v 1.5 3.1 6.2 khz/mv sif output signal voltage v o (sif) p/s = 20db 120 170 240 mv rms v cc = 9v 90 130 180 mv rms sif block (v 13 = 5v) sif limiting sensitivity v i (lim) ? 33 39 db/ v fm detection output voltage v o 400 600 790 mv rms v cc = 9v 400 600 790 mv rms amr amr 40 49 ? db total harmonic distortion thd ? 0.5 1.0 % sif s/n s/n (sif) 60 78 ? db
electrical characteristics (cont?d): (t a = +25 c, v cc = 12v unless otherwise specified) parameter symbol test conditions min typ max unit mute defeat aft defeat start voltage vd 11 0.5 2.3 ? v v cc = 9v 0.5 1.6 ? v av mute v 4th 0.5 1.9 ? v v cc = 9v 0.5 1.1 ? v fm mute v 2th 0.5 2.0 ? v v cc = 9v 0.5 1.9 ? v aft defeat voltage vd 14 5.4 6.0 6.6 v v cc = 9v 3.9 4.5 5.1 v .326 (8.28) pin connection diagram if agc 1 aft coil composite video output eq amp gnd vco tank vco tank apc filter eq amp in gnd sif input rf agc vr 1 2 3 4 fm detector output fm discriminator if agc 2 5 vif input 6 vif input 7 gnd 8 n.c. 24 23 22 21 20 19 18 17 9 16 10 rf agc output 11 aft coil 15 14 12 13 gnd video output aft output v cc 112 24 13 .862 (21.9) max .259 (6.57) .770 (19.5) .070 (1.78) .165 (4.2) .115 (2.9)
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