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unisonic technologies co., ltd s486 cmos ic www.unisonic.com.tw 1 of 12 copyright ? 2011 unisonic technologies co., ltd qw-r502-074,c dual 100mw audio power amplifier with standby mode ? description the utc s486 is a dual power amplifier capable of delivering typically 100mw per channel of continuous average power to an 8 ? load with 0.1% thd+n using a 5v power supply. the utc s486 features an externally controlled, low-power consumption stand by mode. the utc s486 exhibit a low quiescent current of typically 1.8ma, allowing usage in portable applications. the unity-gain stable utc s486 can be configured by external gain-setting resistors. ? features * operating voltage range v cc =2v ~ 5.5v * output power: - 102mw @5v into 16 ? with 0.1% thd+n max (1khz) * stand by mode available * low current consumption: 2.5ma max * click and pop reduction circuitry * unity-gain stable * short circuit protected ? ordering information ordering number lead free halogen free package packing s486l-s08-r S486G-S08-R sop-8 tape reel s486l-s08-r (1)packing type (2)package type (3)lead plating (1) r: tape reel (2) s08: sop-8 (3) g: halogen free, l: lead free
s486 cmos ic unisonic technologies co., ltd 2 of 12 www.unisonic.com.tw qw-r502-074,c ? pin configuration gnd bypass v in (1) out (1) 4 3 2 1 8 7 6 5 v cc out (2) v in (2) shutdown
s486 cmos ic unisonic technologies co., ltd 3 of 12 www.unisonic.com.tw qw-r502-074,c ? absolute maximum rating (ta=25 ) parameter symbol ratings unit supply voltage (note 2) v cc 6 v input voltage v in -0.3v ~ v cc +0.3v v output short circuit to v cc or gnd continuous(note 3) power dissipation (t j =150 ) p d 0.71 w junction temperature t j +150 operating temperature t opr -40 ~ +85 storage temperature t stg -65 ~ +150 notes: 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. 2. all voltage values are measur ed with respect to the ground pin. 3. attention must be paid to continuous power dissipation (v dd x 300ma). exposure of the i c to a short circuit for an extended time period is dramatic ally reducing product life expectancy. ? thermal data parameter symbol ratings unit junction to ambient ja 175 /w ? recommended operating conditions parameter symbol ratings unit supply voltage v cc 2 ~ 5.5 v active 1.5 v stb v cc v standby voltage input standby v stb gnd v stb 0.4(note) v load resistor r l 16 ? r l = 16 ~ 100 ? 400 pf load capacitor r l > 100 ? c l 100 pf junction to ambient ja 150 /w note: the minimum current consumption (i stb ) is guaranteed at gnd for t he whole temperature range.
s486 cmos ic unisonic technologies co., ltd 4 of 12 www.unisonic.com.tw qw-r502-074,c ? electrical characteristics (ta = 25 , gnd = 0v, unless otherwise specified) for v cc = +5v parameter symbol test conditions min typ max unit v ol : r l = 32 ? 0.45 0.5 v oh : r l = 32 ? 4.45 4.52 v ol : r l = 16 ? 0.6 0.7 output swing v out v oh : r l = 16 ? 4.2 4.35 v input offset voltage v i(off) v icm = v cc /2 1 mv supply current i cc no input signal, no load 1.8 2.5 ma stand by current i stb no input signal, v stb =gnd, r l =32 ? 10 1000 na input bias current i i(bias) v icm = v cc /2 90 200 na max output current i out thd+n 1%, r l =16 ? connected between out and v cc /2 106 115 ma r l = 16 ? 102 thd+n = 0.1% max, f= 1khz r l = 32 ? 64 r l = 16 ? 95 108 output power p out thd+n = 1% max, f= 1khz r l = 32 ? 60 65 mw r l = 32 ? , p out = 60mw, 20hz f 20khz 0.3 total harmonic distortion + noise (gv=-1) thd+n r l = 16 ? , p out = 90mw, 20hz f 20khz 0.3 % power supply rejection ratio psrr inputs grounded(g v =-1)(note), r l R 16 ? , c b =1mf, f = 1khz, v ripple = 200mv pp 53 58 db signal-to-noise ratio snr (a weighted, g v =-1)(note), r l = 32 ? , thd +n < 0.4%, 20hz f 20khz 80 103 db r l = 16 ? 80 channel separation, g v =-1, f = 1khz r l = 32 ? 83 r l = 16 ? 72 crosstalk ct channel separation, g v =-1, f = 20hz ~ 20khz r l = 32 ? 79 db input capacitance c in 1 pf gain bandwidth product gb w r l = 32 ? 1.1 mhz slew rate sr unity gain inverting(r l = 16 ? ) 0.4 v/s note: guaranteed by design and evaluation.
s486 cmos ic unisonic technologies co., ltd 5 of 12 www.unisonic.com.tw qw-r502-074,c ? electrical characteristics(cont.) (ta = 25 , gnd = 0v, unless otherwise specified) for v cc = +3.3v parameter symbol test conditions min typ max unit v ol : r l = 32 ? 0.3 0.38 v oh : r l = 32 ? 2.85 3 v ol : r l = 16 ? 0.45 0.52 output swing v out v oh : r l = 16 ? 2.68 2.85 v input offset voltage v i(off) v icm = v cc /2 1 mv supply current i cc no input signal, no load 1.8 2.5 ma stand by current i stb no input signal, v stb =gnd, r l =32 ? 10 1000 na input bias current i i(bias) v icm = v cc /2 90 200 na max output current i out thd +n 1%, r l = 16 ? connected between out and v cc /2 64 75 ma r l = 16 ? 38 thd+n = 0.1% max, f= 1khz r l = 32 ? 26 r l = 16 ? 36 42 output power p out thd+n = 1% max, f= 1khz r l = 32 ? 23 28 mw r l = 32 ? , p out = 60mw, 20hz f 20khz 0.3 total harmonic distortion + noise (gv=-1) thd+n r l = 16 ? , p out = 90mw, 20hz f 20khz 0.3 % power supply rejection ratio psrr inputs grounded (g v =-1)(note 2), r l R 16 ? , c b =1mf, f = 1khz, v ripple = 200mv pp 53 58 db signal-to-noise ratio snr (a weighted, g v =-1)(note 2), r l = 32 ? , thd +n < 0.4%, 20hz f 20khz 80 98 db r l = 16 ? 77 channel separation, g v =-1, f = 1khz r l = 32 ? 80 r l = 16 ? 69 crosstalk ct channel separation, g v =-1, f = 20hz ~ 20khz r l = 32 ? 76 db input capacitance c in 1 pf gain bandwidth product gbw r l = 32 ? 1.1 mhz slew rate sr unity gain inverting( r l = 16 ? ) 0.4 v/s note 1. all electrical values are guarante ed with correlation measurements at 2v and 5v. 2. guaranteed by design and evaluation.
s486 cmos ic unisonic technologies co., ltd 6 of 12 www.unisonic.com.tw qw-r502-074,c ? electrical characteristics(cont.) (ta = 25 , gnd = 0v, unless otherwise specified) for v cc = +2.5v parameter symbol test conditions min typ max unit v ol : r l = 32 ? 0.25 0.32 v oh : r l = 32 ? 2.14 2.25 v ol : r l = 16 ? 0.35 0.45 output swing v out v oh : r l = 16 ? 1.97 2.15 v input offset voltage v i(off) v icm = v cc /2 1 mv supply current i cc no input signal, no load 1.7 2.5 ma stand by current i stb no input signal, v stb =gnd, r l =32 ? 10 1000 na input bias current i i(bias) v icm = v cc /2 90 200 na max output current i out thd +n 1%, r l = 16 ? connected between out and v cc /2 45 56 ma r l = 16 ? 21 thd+n = 0.1% max, f= 1khz r l = 32 ? 13 r l = 16 ? 17.5 22 output power p out thd+n = 1% max, f= 1khz r l = 32 ? 12.5 14 mw r l = 32 ? ,p out = 60mw, 20hz f 20khz 0.3 total harmonic distortion + noise (gv=-1) thd+n r l = 16 ? , p out = 90mw, 20hz f 20khz 0.3 % power supply rejection ratio psrr inputs grounded(g v =-1)(note 2), r l R 16 ? , c b =1mf, f = 1khz, v ripple = 200mv pp 53 58 db signal-to-noise ratio snr (a weighted, a v =-1)(note 2), r l = 32 ? , thd +n < 0.4%, 20hz f 20khz 80 95 db r l = 16 ? 77 channel separation, g v =-1, f = 1khz r l = 32 ? 80 r l = 16 ? 69 crosstalk ct channel separation, g v =-1, f = 20hz ~ 20khz r l = 32 ? 76 db input capacitance c in 1 pf gain bandwidth product gbp r l = 32 ? 1.1 mhz slew rate sr unity gain inverting (r l = 16 ? ) 0.4 v/s note 1. all electrical values are guarante ed with correlation measurements at 2v and 5v. 2. guaranteed by design and evaluation.
s486 cmos ic unisonic technologies co., ltd 7 of 12 www.unisonic.com.tw qw-r502-074,c ? electrical characterist(cont.) (ta = 25 , gnd = 0v, unless otherwise specified) for v cc = +2v parameter symbol test conditions min typ max unit v ol : r l = 32 ? 0.24 0.29 v oh : r l = 32 ? 1.67 1.73 v ol : r l = 16 ? 0.33 0.41 output swing v out v oh : r l = 16 ? 1.53 1.63 v input offset voltage v i(off) v icm = v cc /2 1 mv supply current i cc no input signal, no load 1.7 2.5 ma stand by current i stb no input signal, v stb =gnd, r l =32 ? 10 1000 na input bias current i i(bias) v icm = v cc /2 90 200 na max output current i out thd +n 1%, r l =16 ? connected between out and v cc /2 33 41 ma r l = 16 ? 12 thd+n = 0.1% max, f= 1khz r l = 32 ? 8 r l = 16 ? 9.5 13 output power p out thd+n = 1% max, f= 1khz r l = 32 ? 7 9 mw r l = 32 ? , p out = 60mw, 20hz f 20khz 0.3 total harmonic distortion + noise (gv=-1) thd+n r l = 16 ? , p out = 90mw, 20hz f 20khz 0.3 % power supply rejection ratio psrr inputs grounded (g v =-1)(note) ,r l R 16 ? , c b =1mf, f = 1khz, v ripple = 200mv pp 52 57 db signal-to-noise ratio snr (a weighted, g v =-1)(note), r l = 32 ? , thd +n < 0.4%, 20hz f 20khz 80 93 db r l = 16 ? 77 channel separation, g v =-1, f = 1khz r l = 32 ? 80 r l = 16 ? 69 crosstalk ct channel separation, g v =-1, f = 20hz ~ 20khz r l = 32 ? 76 db input capacitance c in 1 pf gain bandwidth product gbp r l = 32 ? 1.1 mhz slew rate sr unity gain inverting (r l = 16 ? ) 0.4 v/s note: guaranteed by design and evaluation.
s486 cmos ic unisonic technologies co., ltd 8 of 12 www.unisonic.com.tw qw-r502-074,c ? typical application circuit bias v cc c s 1f 1f z l =32 z l =32 1k utc s486=stdby c out2 220f 1 1k v cc 8 4 gnd 20k r feed 2 20k r feed 1 2 5 3 6 20k r in1 c b c in1 330nf right in left in c in2 330nf r in2 20k stdby 220f stdby ctrl stdby level threshold=0.9v c out1 7 components information components functional description r in1, 2 inverting input resistor which sets the closed loop gain in conjunction with r feed . this resistor also forms a high pass filter with c in (fc = 1 / (2 x x r in x c in ) . c in1, 2 input coupling capacitor which blocks the dc voltage at the amplifier?s input terminal. r feed1, 2 feedback resistor which sets the closed loop gain in conjunction with r in . a v = closed loop gain= -r feed /r in . c s supply bypass capacitor which provides power supply filtering. c b bypass capacitor which provides half supply filtering. c out1, 2 output coupling capacitor which blocks t he dc voltage at the load input terminal. this capacitor also forms a high pass filter with r l (fc = 1 / (2 x x r l x c out )).
s486 cmos ic unisonic technologies co., ltd 9 of 12 www.unisonic.com.tw qw-r502-074,c ? typical characteristics thd + n (%) thd + n (%) thd + n (%) thd + n (%) thd + n (%) thd + n (%)
s486 cmos ic unisonic technologies co., ltd 10 of 12 www.unisonic.com.tw qw-r502-074,c ? typical characteristics(cont.) gain -40 -20 0 20 40 60 80 gain (db) -20 0 20 40 60 80 100 120 140 160 180 0.1 1 10 100 1000 10000 frequency (khz) phase (deg) phase open loop gain and phase vs frequency v cc =5v r l =16 ? ta=25 -40 -20 0 20 40 60 80 gain (db) -20 0 20 40 60 80 100 120 140 160 180 0.1 1 10 100 1000 10000 frequency (khz) phase (deg) phase gain open loop gain and phase vs frequency v cc =5v r l =32 ? ta=25 -40 -20 0 20 40 60 80 gain (db) -20 0 20 40 60 80 100 120 140 160 180 0.1 1 10 100 1000 10000 frequency (khz) phase (deg) v cc =5v r l =600 ? ta=25 gain phase open loop gain and phase vs frequency output power vs power supply voltage r l = 16 ? f = 1khz b w < 125khz ta = 25 200 175 150 125 100 75 50 25 0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 v cc (v) output power (mw) thd+n=10% thd+n=0.1% thd+n=1% output power vs power supply voltage r l = 32 ? f = 1khz b w < 125khz ta = 25 100 75 50 25 0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 v cc (v) output power (mw) thd+n=10% thd+n=0.1% thd+n=1% power dissipation vs output power 80 40 0 0 20 40 60 80 100 output power (mw) power dissipation (mw) 20 60 r l =32 ? r l =16 ? v cc =5v f=1khz thd+n<1%
s486 cmos ic unisonic technologies co., ltd 11 of 12 www.unisonic.com.tw qw-r502-074,c ? typical characteristics(cont.) 0 5 10 power dissipation (mw) 10 0 2 6 12 output power (mw) power dissipation vs output power r l =16 ? v cc =2v f=1khz thd+n<1% 15 4 8 r l =32 ? power derating vs ambiant temperature power dissipation (w) ambiant temperature ( ) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 025 100 50 75 125 150 current consumption vs power supply voltage ta=25 ta=-40 ta=85 no load 0.0 0.5 1.0 1.5 2.0 0 12345 current consumption (ma) v cc (v) current consumption vs standby voltage 0.0 0.5 1.0 1.5 2.0 012345 current consumption (ma) standby voltage (v) v cc = 5v no load ta=25 ta=-40 ta=85 output voltage swing vs power supply voltage ta=25 r l =16 ? r l =32 ? v oh & v ol (v) v cc (v) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0
s486 cmos ic unisonic technologies co., ltd 12 of 12 www.unisonic.com.tw qw-r502-074,c utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.

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