mitsumi no-adjustment sync separator + sync detector mm1067 no-adjustment sync separator + sync detector monolithic ic mm1067 outline this ic is a no-adjustment sync separator + sync detector designed for use in vcr, tv and other video equipment. features 1. sync separator with afc (ceramic resonator means no adjustment required) 2. composite and sync output pins 3. sync detection circuit (used for blue-back switching or tuner automatic channel selection, etc.) 4. power supply voltage v cc =5v 5. ceramic resonator can be selected for use in either pal or ntsc package sop-16a (mm1067xf) dip-16a (MM1067XD) applications 1. tv 2. vcr 3. other video equipment block diagram
pin no. pin name internal equivalent circuit diagram pin no. pin name internal equivalent circuit diagram mitsumi no-adjustment sync separator + sync detector mm1067 pin description 1 video in 3 h.sync 2 nc 4 v.int 5 v.sync 6 c.sync 7 cr 8 gain 9 sync.det 12 osc - out 10 nc 11 gnd 13 osc - in1 14 osc - in2 15 lpf 16 v cc
mitsumi no-adjustment sync separator + sync detector mm1067 absolute maximum ratings (ta=25c) electrical characteristics (except where noted otherwise, ta=25c, v cc =5.0v, x=csb503f2, r=390 [ohm], c=3300pf, sw1=off) item symbol ratings units storage temperature t stg - 40~+125 c operating temperature t opr - 20~+75 c power supply voltage v cc max 7 v allowable loss p d 450 * 1mw item symbol measurement measurement conditions min. typ. max. units circuit operating power supply voltage v cc v cc 4.7 5.0 5.3 v consumption current id id 9.0 13.0 ma free-running frequency ntsc f o 1 tp1 15.534 15.734 15.934 khz horizontal sync signal f cap 1 tp1 v in : signal 1 * 1 * 2 300 500 hz acquisition range ntsc free-running frequency pal f o 2 tp1 x = csb500f40, r = 200ohm 15.425 15.625 15.825 khz c = 4700pf horizontal sync signal f cap 2 tp1 x = csb500f40, r = 200ohm , 300 500 hz acquisition range pal c = 4700pf, v in : signal 1 * 1 * 3 h. sync pulse width t w 1 tp1 v in : signal 1, 15.734khz * 4 3.9 4.2 4.5 us h. sync delay time td1 tp1 v in : signal 1, 15.734khz * 4 0.7 1.2 1.7 us h. sync output voltage l v l 1 tp1 v in : signal 1, 15.734khz * 4 0.2 0.4 v h. sync output voltage h v h 1 tp1 v in : signal 1, 15.734khz * 4 4.8 5.0 v lpf pin dc level v lpf tp7 sw1 : on 0.9 1.4 1.9 v sync separation level v sepa v in v in : staircase wave 1v p - p * 520 50 80mv c. sync pulse width t w 2 tp4 v in : staircase wave 1v p - p * 6 4.0 4.5 5.0 us c. sync delay tim td2 tp4 v in : staircase wave 1v p - p * 6 0.3 0.6 0.9 us c. sync output voltage l v l 2 tp4 v in : staircase wave 1v p - p * 6 0.2 0.4 v c. sync output voltage h v h 2 tp4 v in : staircase wave 1v p - p * 6 4.8 5.0 v v. sync pulse width t w 3 tp3 v in : staircase wave 1v p - p * 7 150 190 230 us v. sync delay time td3 tp3 v in : staircase wave 1v p - p * 7 8.0 10.0 12.0 us v. sync output voltage l v l 3 tp3 v in : staircase wave 1v p - p * 7 0.2 0.4 v v. sync output voltage h v h 3 tp3 v in : staircase wave 1v p - p * 7 4.8 5.0 v v. sync switching voltage l v thl 3 tp2 tp2 : dc voltage, 5v low * 8 1.5 1.8 2.1 v v. sync switching voltage h v thh 3 tp2 tp2 : dc voltage, 0v high * 8 2.3 2.6 2.9 v sync discrimination output voltage l v l 4 tp6 v in : staircase wave 1v p - p 0.2 0.4 v sync discrimination output voltage h v h 4 tp6 v in : no input signal 4.8 5.0 v sync discrimination switching voltage l v thl 4 tp5 tp5 : dc voltage 5 low * 9 2.0 2.3 2.6 v sync discrimination switching voltage h v thh 4 tp5 tp5 : dc voltage, 0v high * 9 2.7 3.0 3.3 v notes : * 1 signal 1 : rectangular waveform signal with 0.3v amplitude and pulse width 4.7s * 2 measuring horizontal sync signal pull-in range for ntsc with tp1 waveform not synchronized to signal 1, adjust signal 1 frequency toward 15.734khz. the measurement value is the smaller of the synchronized frequency and the difference from 15.734. * 3 measuring horizontal sync signal pull-in range for pal with tp1 waveform not synchronized to signal 1, adjust signal 1 frequency toward 15.625khz. the measurement value is the smaller of the synchronized frequency and the difference from 15.625. signal 1 waveform 4.7us * package : dip-16a
mitsumi no-adjustment sync separator + sync detector mm1067 * 4 h. sync measurement * 5 measuring sync separation level gradually lower staircase wave signal sync tip level, and measure sync tip level when pin 6 waveform starts to change. * 6 c. sync measurement * 7 v. sync measurement * 8 v. sync switching voltage measurement gradually change the dc voltage impressed on tp2, and measure tp2 voltage when tp3 output switches. * 9 sync discrimination switching voltage measurement gradually change the dc voltage impressed on tp5, and measure tp5 voltage when tp6 output switches. signal 1 tp1 waveform t w 1 t d 1 v h 1 v l 1 input video signal (horizontal sync signal portion) tp4 waveform t w 2 t d 2 v h 2 v l 2 input video signal (vertical sync signal portion) tp3 waveform t w 3 t d 3 v h 3 v l 3
mitsumi no-adjustment sync separator + sync detector mm1067 measuring circuit note : * 1 ntsc pal x csb503f2 csb500f40 r 390 220 c 3300pf 4700pf application circuits there is a momentary phase lag in the h. sync output vertical feedback interval. when using this ic for osd timing, characters at the top of the screen may bend due to ic deviation. if this happens, change the resistance between pins 13 and 14 as shown, and the bending will improve by several h from the top edge of the screen. application circuit 1
mitsumi no-adjustment sync separator + sync detector mm1067 note 1: 1. * 1 ntsc pal x csb503f2 csb500f40 r1 1.5k 1.8k r2 390 c1 220pf c2 3300pf note 2 : 1. * 2 input signal sync tip must be less than 1v for application circuit 1 pin 1 external circuit. 2. the above 1. does not apply for application circuit 2 pin 1 external circuit. pin 1 is clamped at approximately 2.5v. application circuit 2 2. resistors r1 and r2 should have precision of 1%. 3. capacitors c1 and c2 should have precision of 5% and temperature characteristic of ch class.
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