shaoxing silicore technology co.,ltd www . silicore. com . cn chmc 1/7 dual power amplifier TDA2822 general description outline drawing the tda 2822 is a monolithic integrated circuit in 8 lead m i n i dip pack ag e. it is int e nde d for use as dual au dio power am plifier i n portab l e c a ssette tape play ers and radios. fea t ures dual low-voltage power am plifier supply voltage down to 1.8v l o w c r o s s o v e r d i s t o r t i o n d i p 8 low quiescent current bridge or stereo configuration b l o c k d i a g r a m sop8 pinning bi as ci rcui t + _ + _ 8 7 6 5 1 23 4 nf1 in 1 in 2 nf2 out1 v cc out2 gnd 1 2 3 4 5 6 7 8 output( 1 ) vc c output( 2 ) ground in pu t-(1) in pu t+(1) in pu t+(2) in pu t-(2) 2822 tiger electronic co.,ltd
shaoxing silicore technology co.,ltd www. silicore. com. cn chmc 2/7 maximum ratings characteristics symbol value unit supply voltage vcc 15 v output peak current ipk 1 a total power dissipation(at tamb=50 c) p d 1 w total power dissipation(at tcase=50 c) p d 1.4 w operating ambient temperature range ta -20~70 c storage temperature range tstg -40~150 c electrical characteristics 1. stereo test circuit( unless otherwise specified vcc=6v,tamb=25 c) characteristic symbol test condition min. typ. max. unit supply voltage vcc 1.8 15 v 2.7 v quiescent output voltage vo vcc=3v 1.2 v quiescent drain current id 6 9 ma input bias current i ba 100 na d=10% f=1khz vcc=3v r l =4 |? vcc=3v r l =32|? 110 20 mw output power (each channel) po d=10% f=1khz vcc=9v r l =8 |? vcc=6v r l =4|? vcc=4.5v r l =4|? 0.4 1 0.65 0.32 w distortion thd po=0.5w r l =8|? f=1khz vcc=9v 0.3 % closed loop voltage gain avf f=1khz 40 db channel balance ? avf ? 1 db input resistance ri f=1khz 100 k |? rs=10k|? b=cure a 2 | v total input noise v ni rs=10k|? b=22hz to22khz 3 supply voltage rejection svr f=100hz c1=c2=100 | f 24 30 db channel separation csr f=1khz 50 db
shaoxing silicore technology co.,ltd www. silicore. com. cn chmc 3/7 2.bridge test circuit (unless otherwise specified vcc=6v,tamb=25 c) characteristic sym -bol test condition min. typ. max. unit supply voltage vcc 1.8 15 v quiescent drain current id r l = 6 9 ma output offset voltage (between the outputs) vo s r l =8 |? ? 50 mv input bias current ib 100 na d=10% f=1khz vcc=9v r l =16|? vcc=6v r l =8 |? vcc=4.5v r l =8 |? vcc=4.5v r l =4 |? 2 1.35 0.7 1 w output power po vcc=3v r l =4 |? vcc=2v r l =4 |? 200 350 80 mw distortion thd po=0.5w r l =8 |? f=1khz 0.2 % closed loop voltage gain avf f=1khz 40 db input resistance ri f=1khz 100 k |? rs=10k|? curve a 2.5 total input noise v ni rs=10k|? b=22hz to 22khz 3 | v supply voltage rejection svr f=100hz 40 db power bandwidth (-3db) b r l =8 |? po=1w 120 khz
shaoxing silicore technology co.,ltd www . silicore. com . cn chmc 4/7 test circuit 1.stereo test circuit c1 100u f c4 47 0uf r1 10 k r3 4. 7 r c6 0. 1uf l in (l ) 8 7 1 + _ c2 10 0uf c5 470 uf r2 10 k r4 4. 7 r c7 0. 1 u f l in (r ) 5 6 3 + _ c3 1 0uf +v c c 2 4 2.bridge test circuit + - + - r1 10k c1 10 uf r2 4. 7 c4 0. 1uf rl c2 10 nf r3 4. 7 c5 0. 1 u f c3 10u f 1 3 2 4 5 7 6 8 in +v c c
shaoxing silicore technology co.,ltd www . silicore. com . cn chmc 5/7 applica t ion circuit 1. t y pical application in portable players 100uf 1 00uf 10k 4. 7 0. 1uf in (l ) 8 7 1 + _ 10 0uf 100uf 10 k 4. 7 0. 1uf in (r ) 5 6 3 + _ +3v 2 4 32/ 1 6 he a d p h o n e 2. application cir c uit for portable radio r eceivers 3 3uf 22k 1. 0uf 27 0 15 k 5k 680n f 1k 0. 22u f 0. 47uf 47 nf 680 led 47 1 00uf 47k 47 k 0. 1u f 47 k 0. 1 u f 3 . 9 k 1 5nf 3. 9 k 15 nf 1 00uf 220 uf 0. 1u f 4. 7 _ + 7 8 1 4 220 uf 0. 1u f 47k 100u f 220uf 0. 1uf 4. 7 _ + 6 5 3 4 4 TDA2822 2 +v c c = 6 v 19k mo n i t o r in vc o st o p t e a 1 330 13 13 15 14 6 4 5 12 16 8 11 10 7 9 2
shaoxing silicore technology co.,ltd www . silicore. com . cn chmc 6/7 3. portable radio cassette players tda7211 fm tuner tda 7220 am/ f m radio tea 1330 stereo decoder tda 2320 a pre amplifier switch TDA2822 audio amplifier 32/16 4. portable ster eo radios t d a 7211 fm tuner t d a 7220 am / f m t e a 1330 stereo decoder tda 2822 audi o pow e r a m p l if ie r radi o 5. low cost application for portables (using only one 100 f output capacitor) 10 0u f 10 k 4. 7 0. 1 u f in (l ) 8 7 1 + _ 100 uf 10 uf 10 k 4. 7 0. 1 u f in (r ) 5 6 3 + _ +3 v 2 4 32 / 1 6 1 00u f
shaoxing silicore technology co.,ltd www . silicore. com . cn chmc 7/7 characteristics cur ves
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