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mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 1/14 www.mosanalog.com mono 1.9w / stereo 300mw power amplifier low voltage operation, shutdown function features ? operation range: 2.4v ~ 6.5v ? shutdown current 18ua at 5v ? output power, thd+n=1% btl, r l =3 ? , 2.1w at 5v btl, r l =4 ? , 1.9w at 5v, 0.83w at 3.3v, 500mw at 2.7v btl, r l =8 ? , 1.2w at 5v, 0.54w at 3.3v, 350mw at 2.7v se, r l =8 ? , 300mw at 5v, 125mw at 3.3v, 85mw at 2.7v se, r l =32 ? , 90mw at 5v, 43mw at 3.3v, 25mw at 2.7v ? headphone sense ? unity-gain stable, pop noise free ? space-saving msop10 (enhan ce thermal pad), tssop14 applications ? desktop computer?s sound card ? portable audio devices ?pda ? handheld games ? communication headsets ? cross-reference: ssm2250, lm4853, lm4858 description the ms6853 is a low distortion power amplifier that can drive a set of 1.9w of continuous average power into a mono 4 ? bridged-tied load (btl) or 2 * 90mw into stereo 32 ? single ended (se) loads headphone. it can automatically switch between mono btl and stereo se modes utilizing a headphone sense pin. the btl configuration eliminates the need for external coupling capacitors on the output in most applications. the unity gain stable ms6853?s gain is set by external gain-setting resistors. the ms6853 has good feature for portable equipment, thes e features include the low voltage operation, micropower consumption shutdown mode, enhance thermal pad and small package msop10, tssop14, make the ms6853 ideally suited for use in portable digital audio equipments. block diagram shutdown a2 - + l-in gnd v dd bypass r-in btl out+ r-out l-out / btl out- hp-in v dd mono / stereo mode switching circuitry a3 - + a1 - + v dd click/pop reduction bias
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 2/14 www.mosanalog.com pin configuration symbol msop10 pin tssop14 pin description l-in 1 2 left channel input shutdown 2 3 shutdown places the entire device in shutdown mode when held high. ttl compatible input. hp-in 3 4 headphone input detection. a logical low sets btl mode, a logical high sets se mode. gnd 4 5 ground r-in 5 6 right channel input r-out 6 9 right channel output by pass 7 10 bypass is the cap to the voltage divider for internal mid-supply bias. this terminal should be connected to a 0.1- f to 10- f capacitor c bp . btl out+ 8 11 bridged-tied load positive output vdd 9 12 supply voltage l-out/btl out- 10 13 left channel output or bridged-tied load negative output nc - 1,7,8,14 no connected msop10 l-out / btl out- 6 7 8 9 10 2 3 4 1 l-in shutdown hp-in gnd 5 r-in v dd btl out + bypass r-out thermal pad ms6853 tssop14 l-out / btl out- 10 11 12 13 14 2 3 4 1 l-in shutdown hp-in gnd 5 r-in v dd btl out + bypass r-out 9 6 8 7 nc nc nc nc ms6853 ordering information package part number packag ing marking transport media 10-pin msop (lead free) ms6853mgtr 6853g 3.5k units tape and reel 10-pin msop (lead free) ms6853mgu 6853g 80 units tube 14pin tssop (lead free) MS6853TGTR ms6853g 2.5units tape and reel 14pin tssop (lead free) ms6853tgu ms6853g 98units tube rohs compliance
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 3/14 www.mosanalog.com absolute maximum ratings symbol parameter rating unit v dd supply voltage 6.5 v v esd electrostatic handling -3000 to 3000 v t stg storage temperature range -65 to 150 t a operating ambient temperature range -40 to 85 t j maximum junction temperature 150 t s soldering temperature, 10 seconds 260 r thja thermal resistance from junction to ambient in free air msop10 (enhance thermal pad) tssop14 50 150 /w operating ratings symbol parameter min typ max unit v dd supply voltage 2.4 5 6.5 v 5v electrical characteristics ta = 25c, v dd =5v, f=1khz, bw<30khz, unless otherwise specified. symbol parameter conditions min typ max unit btl mode, v in =0v, i o =0a - 2.4 - ma i q quiescent current se mode, v in =0v, i o =0a - 2.4 - ma i sd shutdown current sd mode, v sd =v dd 18 ua v sdh shutdown input voltage high 2.0 - - v v sdl shutdown input voltage low - - 0.8 v v hpinh hp-in input voltage high - 0.75v dd - v v hpinl hp-in input voltage low hysteresis voltage - 0.65v dd - v cs channel separation se mode, r l =32 100 110 - db btl mode , r l =8 c bp =1uf, f=100hz - 73 - db psrr power supply rejection ratio se mode , r l =32 c bp =10uf, f=100hz - 64 - db - -73 -68 db thd+n total harmonic distortion plus noise se mode, r l =32 , 60mw - 0.022 0.04 % s/n signal-to-noise ratio se mode, a-weighting 90 95 - db btl mode, r l = 3 thd+n = 1% - 2.1 - w btl mode, r l = 4 thd+n = 1% - 1.9 - w btl mode, r l = 8 thd+n = 1% - 1.2 - w se mode, r l =8 thd+n = 1% - 300m - w po output power se mode, r l = 32 thd+n = 1% - 90m - w
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 4/14 www.mosanalog.com 3.3v electrical characteristics ta = 25c, v dd =3.3v, f=1khz, bw<30khz, unless otherwise specified. symbol parameter conditions min typ max unit btl mode, v in =0v, i o =0a - 2.1 - ma i q quiescent current se mode, v in =0v, i o =0a - 2.1 - ma i sd shutdown current sd mode, v sd =v dd - 12 - ua cs channel separation se mode, r l =32 100 110 - db btl mode , r l =8 c bp =1uf, f=100hz - 73 - db psrr power supply rejection ratio se mode , r l =32 c bp =10uf, f=100hz - 67 - db - -70 -65 db thd+n total harmonic distortion plus noise se mode, r l =32 , 25mw 0.032 0.056 % s/n signal-to-noise ratio se mode, a-weighting 89 94 - db btl mode, r l = 4 thd+n = 1% - 0.83 - w btl mode, r l = 8 thd+n = 1% - 0.54 - w se mode, r l =8 thd+n = 1% - 125m - w po output power se mode, r l = 32 thd+n = 1% - 43m - w 2.7v electrical characteristics ta = 25c, v dd =2.7v, f=1khz, bw<30khz, unless otherwise specified. symbol parameter conditions min typ max unit btl mode, v in =0v, i o =0a - 2 - ma i q quiescent current se mode, v in =0v, i o =0a - 2 - ma i sd shutdown current sd mode, v sd =v dd - 7.5 - ua cs channel separation se mode, r l =32 100 110 - db btl mode , r l =8 c bp =1uf, f=100hz - 73 - db psrr power supply rejection ratio se mode , r l =32 c bp =10uf, f=100hz - 67 - db - -69 -64 db thd+n total harmonic distortion plus noise se mode, r l =32 , 15mw 0.036 0.063 % s/n signal-to-noise ratio se mode, a-weighting 87 92 - db btl mode, r l = 4 thd+n = 1% - 0.51 - w btl mode; r l = 8 thd+n = 1% - 0.35 - w se mode; r l = 8 thd+n = 1% - 85m - w po output power se mode; r l = 32 thd+n = 1% - 25m - w
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 5/14 www.mosanalog.com 2.4v electrical characteristics ta = 25c, v dd =2.4v, f=1khz, bw<30khz, unless otherwise specified. symbol parameter conditions min typ max unit - -68 -63 db thd+n total harmonic distortion plus noise se mode, r l =32 , 15mw 0.0398 0.07 % s/n signal-to-noise ratio se mode, a-weighting 86 90 - db btl mode, r l = 4 thd+n = 1% 0.37 - w btl mode; r l = 8 thd+n = 1% - 0.27 - w se mode; r l = 8 thd+n = 1% - 67m - w po output power se mode; r l = 32 thd+n = 1% - 21m - w
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 6/14 www.mosanalog.com typical performance characteristics ta = 25c, bw<30khz, unless otherwise specified. thd+n (%) frequency (hz) thd+n (%) frequency (hz) thd+n (%) frequency (hz) thd+n vs. frequency thd+n vs. frequency thd+n vs. frequency v dd =3.3v btl mode r l =4 ? v dd =5v btl mode r l =4 ? v dd =2.7v btl mode r l =4 ? po=1.9w po=0.8w po=0.5w thd+n (%) frequency (hz) thd+n (%) frequency (hz) thd+n (%) frequency (hz) v dd =3.3v btl mode r l =8 ? v dd =5v btl mode r l =8 ? v dd =2.7v btl mode r l =8 ? po=0.5w po=1.2w po=0.34w po=0.3w po=1w po=0.25w thd+n vs. frequency thd+n vs. frequency thd+n vs. frequency thd+n (%) frequency (hz) thd+n (%) frequency (hz) thd+n (%) frequency (hz) v dd =3.3v se mode r l =32 ? v dd =5v se mode r l =32 ? v dd =2.7v se mode r l =32 ? po=25mw po=90mw po=25mw po=60mw po=15mw po=35mw thd+n vs. frequency thd+n vs. frequency thd+n vs. frequency
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 7/14 www.mosanalog.com thd+n (%) output power (w) thd+n (%) output power (w) thd+n (%) output power (w) thd+n vs. output power thd+n vs. output power thd+n vs. output power f=20khz f=20khz f=20khz f=1khz f=1khz f=1khz v dd =2.7v btl mode r l =4 ? v dd =5v btl mode r l =4 ? v dd =3.3v btl mode r l =4 ? f=20hz f=20hz f=20hz thd+n (%) output power (w) thd+n (%) output power (w) thd+n (%) output power (w) thd+n vs. output power thd+n vs. output power thd+n vs. output power f=20khz f=20khz f=20khz f=1khz f=1khz f=1khz f=20hz f=20hz f=20hz v dd =5v btl mode r l =8 ? v dd =3.3v btl mode r l =8 ? v dd =2.7v btl mode r l =8 ? thd+n (%) output power (w) thd+n (%) output power (w) thd+n (%) output power (w) thd+n vs. output power thd+n vs. output power thd+n vs. output power f=20khz f=20khz f=20khz f=1khz f=1khz f=1khz f=20hz f=20hz f=20hz v dd =5v se mode r l =32 ? v dd =3.3v se mode r l =32 ? v dd =2.7v se mode r l =32 ?
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 8/14 www.mosanalog.com psrr (db) frequency (hz) psrr (db) frequency (hz) psrr (db) frequency (hz) psrr vs. frequency psrr vs. frequency psrr vs. frequency c bp =10uf c bp =10uf c bp =10uf c bp =1uf c bp =1uf c bp =1uf v dd =2.7v se mode r l =32 ? v dd =5v se mode r l =32 ? v dd =3.3v se mode r l =32 ? psrr (db) frequency (hz) psrr (db) frequency (hz) psrr (db) frequency (hz) psrr vs. frequency psrr vs. frequency psrr vs. frequency c bp =1uf c bp =1uf c bp =1uf c bp =10uf c bp =10uf c bp =10uf v dd =2.7v btl mode r l =8 ? v dd =5v btl mode r l =8 ? v dd =3.3v btl mode r l =8 ? quiescent current (ma) supply voltage (v) channel separation (db) frequency (hz) output mode hp-in voltage (v) quiescent current vs. supply voltage channel separation vs. frequency output mode vs. hp-in voltage v in =0v no load v dd =5v po=90mw v dd =3.3v po=40mw v dd =2.7v po=25mw se mode r l =32 ?
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 9/14 www.mosanalog.com application information basic application example l-in ms6853 shutdown vdd r-in btl out+ hp-in gnd bypass r-out 20k l-out/btl out- 1uf 1uf 20k v dd 20k r l 8 100uf 1k 1uf 100uf 1k 1uf headphone jack 20k 100k v dd v inr v inl r f r f r in r in 100k v dd dc gain = - r f / r in = -1 fig.1 a audio amplifier application circuit. (connected to r-out) l-in ms6853 shutdown vdd r-in btl out+ hp-in gnd bypass r-out 20k l-out/btl out- 1uf 1uf 20k v dd 20k r l 8 100uf 1k 1uf 100uf 1k 1uf headphone jack 20k 100k 100k v dd v dd v inr v inl r f r f r in r in 100k v dd 100k 0.1uf dc gain = - r f / r in = -1 fig.2 a audio amplifier application circuit. (connected to l-out)
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 10/14 www.mosanalog.com se mode and btl mode operation as shown in block diagram and fig.1, in the se mode, the ms6853 operates as a high current output dual op amp. amplifier a1 and a3 are independent amplifiers with an externally configured gain of a v = - r f /r in. amplifier a2 is shut down to a high output impedance state. in btl mode, a3 is shutdown to a high impedance state. the audio signal from the r-in pin is directed to the inverting input of a1. as a result, the l-in and r-in audio signals, v inl and v inr , are summed together at the input of a1. a2 is then activated with a closed-loop gain of a v = -1 fixed by two internal resistors. the outputs of a1 and a2 are then used to drive the mono bridged-tied load. hp-in operation th e ability of the ms6853 is easily switched between mono btl and stereo se modes. the mode is switched by headphone control pin, hp-in. a logic-high activates the se mode when a set of headphone plugged into the system, on the other hand, a logical-low to hp-in activates the btl mode when no headphones. hp-in pin is a hysteresis control input, the hysteresis range is from 0.65vdd to 0.75vdd. in the case of 5v vdd for ms6853 (the hysteresis voltage for hp-in is from 3.25v to 3.75v) and 3v vdd for the controlling device, such as mcu, a simple level shift circu it is needed, as shown below. 100k pmos mcu v dd =3v 5v ms6853 v dd =5v hp-in thermal pad considerations the t hermal pad must be connected to ground. the package with thermal pad of the ms6853 requires special attention on thermal design. the thermal pad on the bottom of the ms 6853 should be soldered down to a copper pad on the circuit board. heat can be conducted away from the thermal pad through the copper plane to ambient. if the copper plane is not on the top surface of the circu it board, 9 vias of 13 mil or smaller in diameter should be used to thermally couple the thermal pad to the bottom plane. for good thermal conduction, the vias must be plated through and solder filled.
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 11/14 www.mosanalog.com external dimensions tssop14 d e1 e c l a a2 a1 b e mso p10 (thermal pad) a a1 b c l d h e a2 thermal pad e w1 w2 dimension in mm dimension in inches symbol min nom max min nom max a 0.81 0.92 1.12 0.032 0.036 0.044 a1 0.05 - 0.15 0.002 - 0.006 a2 0.76 0.86 0. 97 0.030 0.034 0.038 b 0.15 0.20 0.30 0.006 0.008 0.012 c 0.13 0.15 0.23 0.005 0.006 0.009 d 2.90 3.00 3.10 0.114 0.118 0.122 h 4.70 4.90 5.10 0.185 0.193 0.201 e 2.90 3.00 3.10 0.114 0.118 0.122 e 0.50 basic 0.02 basic l 0.40 0.53 0.66 0.016 0.021 0.026 0 o - 6 o 0 o - 6 o w1 1.27 - 1.52 0.050 - 0.060 w2 1.02 - 1.27 0.040 - 0.050 dimension in mm dimension in inches symbol min nom max min nom max a - - 1.20 - - 0.047 a1 0.05 - 0.15 0.002 - 0.006 a2 0.80 1.00 1. 05 0.031 0.039 0.041 b 0.19 - 0.30 0.007 - 0.012 c 0.09 - 0.20 0.0035 - 0.008 d 4.90 5.00 5.10 0.193 0.197 0.201 e - 6.40 - - 0.026 - e1 4.3 4.4 4. 5 0.170 0.173 0.177 e 0.650 basic 0.026 basic l 0.45 0.60 0.75 0.0177 0.024 0.0295 0 o - 8 o 0 o - 8 o
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 12/14 www.mosanalog.com tape and reel (unit : mm) msop10 3.0 3.6 12.0 6.9 8.0 5.5 1.75 5.4 2.0 4.0 1.5+0.1/-0.0 dia 0.5 radius typical 1.5 min 0.30 0.3r max 1.7 2.0 0.05 0.05 0.05 0.3
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 13/14 www.mosanalog.com demo board 1 mso p10 (thermal pad) 2 3 4 5 tssop 14
mosa ms6853 mono 1.9w / stereo 300mw power amplifier rev 6 14/14 www.mosanalog.com function description label 1: supply input supply voltage range is 2.7v to 6.5v, the right of jump is positive, the left of jump is negative. label 2: signal input connected to audio signals. label 3: speaker output connected to speaker with 8ohm or 4 ohm label 4: headphone jack used 3.5mm diameter of headphone with 32ohm label 5: shutdown control system is active mode when jump is close, system enters shutdown mode when jump is open. se mode and btl mode operation the headphone controls operational mode. system enters se mode when headphone jack is empty. when a set of headphone plugged into the jack, the system switched to btl mode. circuit l_ in 1 sd 2 hp_in 3 gnd 4 r_in 5 r_o 6 bp 7 b_o+ 8 vdd 9 l_ o/b_ o 10 u1 ms6853 r5 100k r3 20k r1 20k r2 20k r6 100k r4 20k r7 1k + c3 1uf + c1 1uf + c2 1uf + c5 100uf + c6 100uf + c4 1uf 1 2 jp1 vdd j1 headphone ls1 speaker r8 1k 1 2 jp2 shutdown c7 0.1uf 1 2 jp3 lin 1 2 jp4 rin 1 2 3 jp5 output

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