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TDA2822M dual low-voltage power amplifier march 1995 pin connection (top view) minidip ordering number : TDA2822M . supply voltage down to 1.8v . low crossover distorsion . low quiescent current . bridge or stereo configuration description the TDA2822M is a monolithic integrated circuit in 8 lead minidip package. it is intended for use as dual audio power amplifier in portable cassette players and radios. 1/11
schematic diagram absolute maximum ratings symbol parameter value unit v s supply voltage 15 v i o peak output current 1 a p tot total power dissipation at t amb = 50 c at t case = 50 c 1 1.4 w w t stg , t j storage and junction temperature C 40, + 150 c thermal data symbol parameter value unit r th j-amb thermal resistance junction-ambient max. 100 c/w r th j-case thermal resistance junction-pin (4) max. 70 c/w TDA2822M 2/11
electrical characteristics (v s = 6v, t amb = 25 o c, unless otherwise specified) symbol parameter test conditions min. typ. max. unit stereo (test circuit of figure 1) v s supply voltage 1.8 15 v v o quiescent output voltage v s = 3v 2.7 1.2 v v i d quiescent drain current 6 9 ma i b input bias current 100 na p o output power (each channel) (f = 1khz, d = 10%) r l = 32 w v s = 9v v s = 6v v s = 4.5v v s = 3v v s = 2v r l = 16 w v s = 6v r l = 8 w v s = 9v v s = 6v r l = 4 w v s = 6v v s = 4.5v v s = 3v 90 15 170 300 450 300 120 60 20 5 220 1000 380 650 320 110 mw d distortion (f = 1khz) r l = 32 w p o = 40mw r l = 16 w p o = 75mw r l = 8 w p o = 150mw 0.2 0.2 0.2 % % % g v closed loop voltage gain f = 1khz 36 39 41 db d g v channel balance 1db r i input resistance f = 1khz 100 k w e n total input noise r s = 10k w b = curve a b = 22hz to 22khz 2 2.5 m v m v svr supply voltage rejection f = 100hz, c1 = c2 = 100 m f2430 db c s channel separation f = 1khz 50 db bridge (test circuit of figure 2) v s supply voltage 1.8 15 v i d quiescent drain current r l = 69ma v os output offset voltage (between the outputs) r l = 8 w 50 mv i b input bias current 100 na p o output power (f = 1khz, d = 10%) r l = 32 w v s = 9v v s = 6v v s = 4.5v v s = 3v v s = 2v r l = 16 w v s = 9v v s = 6v v s = 3v r l = 8 w v s = 6v v s = 4.5v v s = 3v r l = 4 w v s = 4.5v v s = 3v v s = 2v 320 50 900 200 1000 400 200 65 8 2000 800 120 1350 700 220 1000 350 80 mw d distortion p o = 0.5w, r l = 8 w , f = 1khz 0.2 % g v closed loop voltage gain f = 1khz 39 db r i input resistance f = 1khz 100 k w e n total input noise r s = 10k w b = curve a b = 22hz to 22khz 2.5 3 m v m v svr supply voltage rejection f = 100hz 40 db b power bandwidth (C3db) r l = 8 w , p o = 1w 120 khz TDA2822M 3/11
figure 1 : test circuit (stereo) figure 2 : test circuit (bridge) figure 3 : p.c. board and components layout of the circuit of figure 1 figure 4 : p.c. board and components layout of the circuit of figure 2 TDA2822M 4/11
figure 5 : quiescent current versus supply voltage figure 6 : supply voltage rejection versus frequency figure 8 : distorsion versus output power (stereo) figure 7 : output power versus supply voltage (thd = 10%, f = 1khz stereo) figure 9 : distorsion versus output power (stereo) figure 10 : output power versus supply voltage (bridge) TDA2822M 5/11
figure 11 : distorsion versus output power (bridge) figure 12 : total power dissipation versus output power (bridge) figure 14 : total power dissipation versus output power (bridge) figure 13 : total power dissipation versus output power (bridge) figure 15 : total power dissipation versus output power (bridge) TDA2822M 6/11
figure 16 : typical application in portable players figure 17 : application in portable radio receivers TDA2822M 7/11
figure 18 : portable radio cassette players figure 20 : low cost application in portable players (using only one 100 m f output capacitor) figure 19 : portable stereo radios type supply voltage tda 7220 tda 7211a tea 1330 tda 7282 tda 2822m 1.5 v to 6 v 1.2 v to 6 v 3 v to 15 v 1.5 v to 6 v 1.8 v to 15 v type supply voltage tda 7220 tda 7211a tea 1330 tda 2822m 1.5 v to 6 v 1.2 v to 6 v 3 v to 15 v 1.8 v to 15 v TDA2822M 8/11
figure 21 : 3v stereo cassette player with motot speed control TDA2822M 9/11
minidip package mechanical data dim. mm inch min. typ. max. min. typ. max. a 3.32 0.131 a1 0.51 0.020 b 1.15 1.65 0.045 0.065 b 0.356 0.55 0.014 0.022 b1 0.204 0.304 0.008 0.012 d 10.92 0.430 e 7.95 9.75 0.313 0.384 e 2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 f 6.6 0.260 i 5.08 0.200 l 3.18 3.81 0.125 0.150 z 1.52 0.060 TDA2822M 10/11
information furnished is believed to be accurate and rel iable. however, sgs-thomson microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectroni cs. specifications mentioned in this publication are subject to change wi thout notice. this publication supersedes and replaces all information previously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in lif e support devices or systems without express written approval of sgs-thomson microelectronics. ? 1994 sgs-thomson microelectronics - all rights reserved sgs-thomson microelectronics group of companies australia - brazil - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco - the netherlands - sing a- pore - spain - sweden - switzerland - taiwan - thaliand - united kingdom - u.s.a. TDA2822M 11/11

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