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bh7659s / bh7659fs multimedia ics input selector for high resolution displays bh7659s / bh7659fs the bh7659s / bh7659fs are input signal switching ics developed for high resolution displays that have three fc = 250mhz wide-band video switching circuits for rgb video signal switching and four cmos analog switching circuits for switching between h d and v d signals as well as i 2 c bus signals (sda and scl). z z z z applications high-resolution displays and high-definition tvs z z z z features 1) operates with a 5v power supply voltage. 2) built-in, wide-band switching circuit for rgb switching (fc = 250mhz). 3) sda and scl as well as h d and v d signal switching is possible. 4) built-in power save function. z z z z absolute maximum ratings (ta = 25 c) parameter symbol limits unit operating temperature storage temperature topr tstg 1300 ? 1 (sdip32) 800 ? 2 (ssop ? a32) c c ? 1 reduced by 13mw for each increase in ta of 1?c over 25?c. ? 2 reduced by 8.0mw for each increase in ta of 1?c over 25 ?c. ?25 ~ + 75 ?55 ~ + 125 power dissipation pd power supply voltage v cc 8.0 v mw z z z z recommended operating conditions (ta = 25 c) parameter symbol unit max. typ. min. operating power supply voltage v cc 4.5 5.0 5.5 v not designed for radiation resistance.
bh7659s / bh7659fs multimedia ics z z z z block diagram r a b a b a a a a b b b b g b power save rina rgnd gina ggnd bina bgnd rinb psh ginb v dd binb n.c. ctl vdina vdinb vd out rv cc r out gv cc g out bv cc b out hd out hdina hdinb sclio sclioa n.c. scliob sdaioa sdaiob sdaio ctl a b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
bh7659s / bh7659fs multimedia ics z z z z input / output equivalent circuits v cc v cc 2k 500 3.7v 10k 2k v cc 50k 3.25v pin no. pin description (pin name) reference potential input / output circuit function 1 3 5 7 9 11 switches between the two rgb signaling systems. input b is selected by setting the ctl pin to high and input a to low. power save activates by setting the psh pin to high. psh power save off 1.5v power save on 3.5v ctl input a 3.5v input b 1.5v red signal input a (rina) green signal input a (gina) blue signal input a (bina) red signal input b (rinb) green signal input b (ginb) blue signal input b (binb) 27 29 31 blue signal output (bout) green signal output (gout) red signal output (rout) 3.5v when selected 0v when not selected8 1.85v 8 9 power save input (psh) control input (ctl) 0v
bh7659s / bh7659fs multimedia ics v dd out in pin no. pin description (pin name) reference potential input / output circuit function 14 15 16 17 18 19 20 22 24 25 26 27 2 4 6 10 28 30 32 switches between the two vd, hd, sda, and scl signaling systems. input b is selected by setting the ctl pin to high and input a to low. bi-directional i / o is possible with cmos analog switch red video sw block gnd green video sw block gnd blue video sw block and cmos sw block gnd cmos sw block v dd blue video sw block v cc green video sw block v cc red video sw block v cc vd signal input a (vdina) vd signal input b (vdinb) vd signal output (vdout) sda signal i / o (sdaio) sda signal i / o b (sdaiob) sda signal i / o a (sdaioa) scl signal i / o b (scliob) scl signal i / o a (sclioa) scl signal i / o (sclio) hd signal input b (hdinb) hd signal input a (hdina) hd signal output (hdout) red ground (rgnd) green ground (ggnd) blue ground (bgnd) cmos power supply voltage (v dd ) blue power supply voltage (bv cc ) green power supply voltage (gv cc ) red power supply voltage (rv cc ) 0v 0v 0v 5v 5v 5v 5v 0v
bh7659s / bh7659fs multimedia ics z z z z electrical characteristics (unless otherwise noted, v cc =5.0v, ta = 25 c) parameter symbol min. typ. max. unit conditions circuit current circuit current during power save voltage gain interchannel relative gain interblock relative gain output dynamic range on-resistance interchannel on-resistance difference interchannel crosstalk transmission delay time high level voltage low level voltage i cc i psv g v v om r on ct t d v h v l 15 7 1.0 0.5 0.5 2.6 3.5 25 14 0.5 0 0 200 20 70 20 ? overall device ? ? r, g, and b video switches ? ? cmos analog switch ? ? control block ? 35 22 0 0.5 0.5 400 40 55 1.5 ma ma db db db v p-p ? ? db ns v v ps = h f = 10mhz f = 10mhz f = 10mhz f = 1khz v in = 2.5v v in = 2.5v f = 150khz rl = 10 ? , cl = 50pf ? g vc ? g vb ? r on z z z z guaranteed design parameters (unless otherwise noted, v cc =5.0v, ta = 25 c) parameter symbol min. typ. max. unit conditions frequency characteristics 1 frequency characteristics 2 interchannel crosstalk 1 interchannel crosstalk 2 interblock crosstalk 1 interblock crosstalk 2 interchannel relative frequency characteristics interblock relative frequency characteristics f 1 f 2 3.0 6.0 0 3 ? r, g, and b video switches ? + 1.0 1.0 db db f = 50mhz f = 250mhz ct c1 ct c2 ct b1 ct b2 50 30 50 30 35 15 35 15 db db db db f = 50mhz f = 250mhz f = 50mhz f = 250mhz ? f c ? f b 0.5 0.5 0 0 0.5 0.5 db db f = 50mhz f = 50mhz
bh7659s / bh7659fs multimedia ics z z z z measurement circuit 1 + v c2 sw23 c1 + v c2 c1 + v c2 c2 1 sw1 2 c1 c1 = 0.01 f c2 = 47 f c3 = 50pf r1 = 75 ? r2 = 10k ? v1 = 1.5v v2 = 3.5v c1 + c2 1 sw3 2 c1 + c2 1 r1 osc1 sw5 2 c1 + c2 1 sw7 sw8 2 c1 v1 v2 1 2 + c2 1 sw9 2 c1 + c1 + c2 c2 n. c. 1 sw11 2 c1 + a v cc am sw13 sw16 fig.1 v2 v1 1 2 c1 c2 2.5v 1 2 3 sw14 r1 v3 + osc 2 c1 c2 2.5v 1 2 3 1 2 3 sw15 r1 v3 + c3 r2 osc 2 v v 1 2 3 r c3 v v sw23 1 2 3 r c3 v v 2.5v 1 2 3 sw24 r1 v3 c2 + osc 2 2.5v 1 2 3 sw22 n. c. r1 v3 c2 + osc 2 2.5v 1 2 3 sw20 r1 v3 c2 c1 + osc 2 2.5v 1 2 3 sw25 r1 v3 c2 c1 + osc 2 sw17 1 2 3 r c3 v v 2.5v 1 2 3 sw18 r1 v3 c2 c1 + osc 2 2.5v 1 2 3 sw19 r1 v3 c2 c1 + osc 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
bh7659s / bh7659fs multimedia ics z z z z measurement circuit 2 v ro + c2 c1 + v c2 c1 + v c2 c2 r1 c1 ro c1 = 0.01 f c2 = 47 f r1 = 50 ? ro = 130 ? c1 + osc n. c. n. c. ro c2 r1 c1 + osc c2 r1 c1 + osc c2 r1 c1 + osc c2 r1 c1 + c2 c1 + osc c2 r1 c1 + osc a v cc v cc am 1 in: b ctl in: a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 fig.2
bh7659s / bh7659fs multimedia ics z z z z measurement conditions measurement circuit 1 parameter switch conditions others circuit current circuit during power save 8 1 2 (1) (2) 1 1 notes measurement circuit 2 parameter input pin: (osc) switch conditions ctl notes voltage gain (g v ) output dynamic range (v om ) frequency characteristics 1 (f 1 ) frequency characteristics 2 (f 2 ) interchannel crosstalk 1 (ct c1 ) interchannel crosstalk 2 (ct c2 ) interblock crosstalk 1 (ct b1 ) interblock crosstalk 2 (ct b2 ) interchannel relative gain: ? g vc interblock relative gain: ? g vb interchannel relative frequency characteristics: ? f c interblock relative frequency characteristics: ? f b rina rinb gina ginb bina binb rina b rinb a gina b ginb a bina b binb a g rina b rina r gina b gina r bina g bina 1 7 3 9 5 11 in: a in: b in: a in: b in: a in: b in: b in: a in: b in: a in: b in: a in: a in: a in: a in: a in: a in: a (3) (8) (11) (12) (13) (14) (4) (5) (9) (10) (6) (7)
bh7659s / bh7659fs multimedia ics measurement circuit 1 parameter switch conditions notes on-resistance (r on ) interchannel crosstalk (ct) transmission delay time (t d ) interchannel on-resistance difference ( ? r on ) vdina vdinb sdina sdinb scina scinb hdina hdinb vdina b vdinb a sdina b sdinb a scina b scinb a hdina b hdinb a vdina vdinb sdina sdinb scina scinb hdina hdinb 13 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 14 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 15 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 1 16 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 17 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 18 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 19 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 20 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 22 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 23 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 24 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 25 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 26 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 others 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 (15) (17) (18) (16) notes: (1) circuit current : icc ; measurement of the circuit current. (2) circuit current during power save : i psv ; measurement of the circuit current during power save. (3) voltage gain : g v v in = 1.0v p-p , f = 10mhz sine wave input from the osc g v = 20log (v out / v in ) [ db ] (4) interchannel relative gain : ? g vc ? g vc = g v ra ? g v rb, g v ga ? g v gb, g v ba ? g v bb [ db ] (5) interblock relative gain : ? g vb ? g vb r= g v ra ? g v ga, g v ra ? g v gb, g v ra ? g v ba, g v ra ? g v bb [ db ] ? g vb g = g v ga ? g v ra, g v ga ? g v rb, g v ga ? g v ba, g v ga ? g v bb [ db ] ? g vb b = g v ba ? g v ra, g v ba ? g v rb, g v ba ? g v ga, g v ba ? g v bb [ db ] (6) output dynamic range : v om connect a distortion meter to the output. after adding a f = 1khz sine wave input from the osc, adjust the input level so that the output distortion is 1.0%. the output voltage at that time is v om [v p-p ]. (7) frequency characteristics 1 : f1 apply to the input pin a v in = 1.0v p-p , f = 10mhz and 50mhz sine wave input from the osc. f1 = g v (50mhz) ? g v (10mhz) [ db ]
bh7659s / bh7659fs multimedia ics (8) frequency characteristics 2 : f2 apply to the input pin a v in = 1.0v p-p , f = 10mhz and 250mhz sine wave input from the osc. f2 = g v (250mhz) ? g v (10mhz) [ db ] (9) interchannel relative frequency characteristics : ? fc ? fc = f1 (ina) ? f1 (inb) [ db ] (10) interblock relative frequency characteristics : ? fb ? fb = f1 (rina) ? f1 (gina), f1 (gina) ? f1 (bina), f1 (bina) ? f1 (rina) [ db ] = f1 (rinb) ? f1 (ginb), f1 (ginb) ? f1 (binb), f1 (binb) ? f1 (rinb) [ db ] (11) interchannel crosstalk 1 : ct c1 apply to the input pin a v in = 1.0v p-p , f = 50mhz sine wave input from the osc. ct c1 = 20log (v out / v in ) [ db ] (12) interchannel crosstalk 2 : ct c2 apply to the input pin a v in = 1.0v p-p , f = 250mhz sine wave input from the osc. ct c2 = 20log (v out / v in ) [ db ] (13) interblock crosstalk 1 : ctb b1 apply to the input pin a v in = 1.0v p-p , f = 50mhz sine wave input from the osc. ct b1 = 20log (v out / v in ) [ db ] (14) interblock crosstalk 2 : ct b2 apply to the input pin a v in = 1.0v p-p , f = 250mhz sine wave input from the osc. ct b2 = 20log (v out / v in ) [ db ] (15) on-resistance : r on ? r on = (v out / v in ? 1 ) 10 4 [ ? ] (16) interchannel on-resistance difference : ? r on ? r on = r on (ina) ? r on (inb) (17) interchannel crosstalk : ct apply to the input pin a v in = 1.0v p-p , f = 150mhz sine wave input from the osc2. ct = 20log (v out / v in ) [ db ] (18) transmission delay time : t d apply to the input pin the rectangular wave of p1 from the osc2. 100ns t d 20ns v cc 0v output input: p1 f = 150khz 50% 50%
bh7659s / bh7659fs multimedia ics z z z z application example scl io v cc + c2 c1 ro ro ro r3 r3 r3 r3 r3 r3 r3 r3 r3 sda io v cc r out g out b out hd out + c2 c1 v cc + c2 c1 r g a a b b a b b a b a aa b b b + c2 r1 r4 5. 1 input a r g b vd sda sca hd input b r g b vd sda sca hd r2 c1 v cc + c2 r1 r2 c1 v cc + c2 r1 r2 c1 v cc + c2 c3 r1 r2 r4 ps:h c1 v cc c2 c2 r1 r2 c1 v cc c2 r1 r2 r4 r3 r3 r3 vd out c3 ctl in a: h in b: l n. c. n. c. c1 c1 v cc v cc r4 5. 1 r4 5. 1 r4 5. 1 r4 5. 1 r4 5. 1 r4 5. 1 r4 5. 1 power save ctl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 + + note: the ro value differs depending on the load capacitance. set so that the frequency characteristics are flat. r1 = 75 ? c1 = 0.01 f r2 = 47 ? c1 = 47 f r3 = 100 ? c1 = 0.1 f r4 = 1.2k ? fig.3
bh7659s / bh7659fs multimedia ics z z z z external dimensions (units : mm) sdip32 ssop ? a32 bh7659s bh7659fs 4.7 0.3 0.51min. 8.4 0.3 3.2 0.2 32 116 17 0.5 0.1 0.3 0.1 28.0 0.3 0 ~ 15 10.16 1.778 0.15 0.15 0.1 0.3min. 7.8 0.3 5.4 0.2 1.8 0.1 0.11 1 32 0.36 0.1 16 17 13.6 0.2 0.8

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