UTC17821 linear?integrated?circuit youwang??electronics??co.ltd 2008.02.17?v1.1 1 dual?5w?btl?audio?power amplifier?circuit features vcc=11v,output=5w(8
) built-in?standby?function built-in?dc?volume?circuits applications tvs,?audio?equipment,?personal?computers,?active speakers sip12h-2.54 block?diagram 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 v c c c h 1 o u t p u t g n d ( c h 2 o u t p u t ) c h 1 o u t p u t s t a n d b y c h 1 i n p u t g n d c h 2 i n p u t v o l u m e c h 2 o u t p u t c h 2 o u t p u t g n d ( c h 1 o u t p u t ) free datasheet http:///
UTC17821 linear?integrated?circuit youwang??electronics??co.ltd 2008.02.17?v1.1 2 pin?description pin?no. function pin?no. function 1 vcc 7 gnd(input) 2 ch1?output(+) 8 ch2?input 3 gnd(output?ch1) 9 dc?volume 4 ch1?output(-) 10 ch2?output(-) 5 standby 11 gnd(output?ch2) 6 ch1?input 12 ch2?output(+) absolute?maximum?ratings characteristic symbol value unit supply?voltage(note2) v cc 14 v supply?current icc 2.0 a operating?temperature?(note1) t a -25?to+70 c storage??temperature(note1) tstg -55?to+150 c power?dissipation(ta=70c) p d 1920 mw note1:ta=25cexcept?storage?temperature?and?operating?ambient?temperature. note2:?at?no-signal. operating?supply?voltage?range characteristic symbol value unit operating?supply?voltage?range vcc 3.5?to13.5 v
UTC17821 linear?integrated?circuit youwang??electronics??co.ltd 2008.02.17?v1.1 3 electrical?characteristics (ta=25 c2 c,vcc=5.0v,rl=8
,freq=1khz) characteristic symbol test?condition min typ. max unit quiescent?current icq vin=0mv,vol.=0v - 45 100 ma standby?current istb vin=0mv,vol.=0v - 1 10 ua output?noise?voltage vno rg=10k
,vol.=0v - 0.10 0.4? mvrms voltage?gain gv po=0.25w,vol.=1.25v 32 34 36 db total?harmonic?distortion thd po=0.25w,vol.=1.25v - 0.1 0.5 % maximum?power?output?1 po1 thd=10%,vol.=1.25v 2.4 3.0 - w maximum?power?output?2 po2 vcc=11v thd=10%,vol.=1.25v 4.0 5.0 - w ripple?rejection?ratio rr rg=10k
,vol.=0v vr=0.5vrms,fr=120hz 30 50 - db output?offset?voltage voff rg=10k
,vol.=0v -250 0 250 mv maximum?attenuation att po=0.25w,vol.=0v 70 90 - db input?impedance zi vin= 0.3vdc 24 30 36 n
channel?balance1 cb1 po=0.25w,vol.=1.25v -1 0 1 db channel?balance?2 cb2 po=0.25w,vol.=0.6v -3 0 3 db center?voltage?gain gvm po=0.25w,vol.=0.6v 21 24 27 db channel?crosstalk ct po=0.25w,vol.=1.25v 44 55 - db note1:?for?this?measurement,?use?the?filter
UTC17821 linear?integrated?circuit youwang??electronics??co.ltd 2008.02.17?v1.1 4 application?circuit
UTC17821 linear?integrated?circuit youwang??electronics??co.ltd 2008.02.17?v1.1 5 package?outline sip-12h-2.54 unit:?mm 0.5 0.2 8.5 0.3 12.5 0.3 15.0 0.3 3.2 0.2 28.0 0.2 0.83typ 2.54 0.5 0.1 5.5 0.3 29.6 0.3 30.2max 1 12 0.4 +0.1 -0.05 4.0 0.2
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