youda integra ted circuit YD8602 low power audio amplifier YD8602 description the YD8602 is the audio power amplifier available for low voltage. it supplies differential outputs for maximizing output swing at low voltages. features *wide operating supply voltage: vcc=2~6v; *low quiescent supply current (icc=2.7ma, typ.); *medium output power po=250mw at vcc=6v, r l =32 , thd=10%; *load impedance range (8 to 100 ); *low distortion; *mute function (icc=65 a, typ.); *minimum number of external parts required. block diagram 2 7 50k 4k 4k 50k 125k + _ + _ 13 4 5 6 8 bias wuxi youda electronics co., ltd add: no.5 xijin road, national hi-tech i ndustrial development zone, wuxi jiangsu china tel: 86-510-85205117 86-510-85205106 fax: 86-510-85205110 website: www.e-youda.com shenzhen office tel 86-755-83740369 fax 86-755-83741418 ver 5.0 1 of 5 2006-07-30 4 .com u datasheet
youda integra ted circuit YD8602 absolute maximum ratings (tamb=25 ) parameter symbol value unit supply voltage vcc 8 v output current io 250 ma maximum input voltage vi -1.0~vcc+1.0 v junction temperature tj -55 +150 recommended operation conditions (tamb=25 ) parameter symbol min typ max unit supply voltage vcc 2.0 4.2 6 v load impedance r l 8 32 100 peak load current iop 100 200 ma differential gain(5khz bandwidth) gv 0 30 46 db voltage at mute vi(mute) 0 vcc v ambient temperature tamb -20 +70 electrical characteristics (tamb=25 , vcc=6v, unless otherwise specified) parameter symbol test conditions min typ max unit vcc=3.0v, mute=0.8v 2.7 4.0 ma vcc=16.0, mute=0.8v 3.3 5.0 ma operating current iccq vcc=3.0v, mute=2.0v 65 100 a vcc=3.0v, r l =16 , rf=75k 1.0 1.15 1.25 output dc voltage vo vcc=6.0v, r l =16 , rf=75k 2.65 v output offset voltage vo vcc=6.0v, rf=75k , r l =32 -30 0 +30 mv output high level v oh 2.0v vcc 6v, io=-75ma vcc -1.0 v output low level v ol 2.0v vcc 6v, lout=75ma 0.16 v input bias current i ib -100 -200 na ri pin2 100 150 220 k equivalent resistance r f pin8 18 25 40 k wuxi youda electronics co., ltd 2 of 5 website: www.e-youda.com 4 .com u datasheet
youda integra ted circuit YD8602 parameter symbol test conditions min typ max unit open loop gain of amp 1 gvo 80 db open loop gain of amp 2 gv f=1.0khz, r l =32 -0.35 0 0.35 db vcc=3.0v, r l =6 , thd 10% 55 output power po vcc=6.0v, r l =32 , hd 10% 250 mw vcc=6.0v, r l =32 , po=125mw 0.5 1.0 total harmonic distortion thd vcc 3.0v, r l =8 , po=20mw 0.5 % gain bandwidth bw 1.5 mhz power supply rejection rr vcc=6.0v, vcc=3.0v, fr=100hz 50 db muting g mut mute=2.0v, v cd =2.0v , 1.0khz f 20khz, 70 db wuxi youda electronics co., ltd 3 of 5 website: www.e-youda.com 4 .com u datasheet
youda integra ted circuit YD8602 application circuit 125k 50k 4k 4k bias 1 2 3.0k + 10 + 10 + 4.7 5 2 1 4 3 6 7 8 75k speaker audio in ci ri vin+ vin- fc gnd cd cd vo+ vo- vcc rf 50k vcc 0.1 + 100 wuxi youda electronics co., ltd 4 of 5 website: www.e-youda.com 4 .com u datasheet
youda integra ted circuit YD8602 wuxi youda electronics co., ltd 5 of 5 website: www.e-youda.com 4 .com u datasheet
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