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sgm 4812 132mw differential input, stereo audio power amplifie r march 2017 C r e v. a. 4 sg micro corp www.sg - micro.com general desription the SGM4812 is a stereo audio power amplifier with differential inputs. operating on a single 5v power supply, it delivers 132mw of continuous rms power per channel into a 16 loads with typically 0.1% thd+n. amplifier gain is externally configured by means of two resistors per input channel and does not require external compensation. the SGM4812 is designed to maximize audio performance in portable communication device applications such as mobile phone. the portable application requires audio power amplifier has minimum of exter nal components and can operate from a si ngle 2.7v to 5.5v power supply. the SGM4812 features an externally controlled, active - high, micro - power consumption shutdown mode. additionally, the SGM4812 features an internal thermal shutdown and short circuit pro tection mechanism. the SGM4812 is available in green msop - 10 package. it operates over an ambient temperature range of - 40 to +85 . features dual channel, differential inputs 132mw into 16? load from 5v power supply at thd+n = 0.1% (typical, per channel) 82mw into 32? load from 5v power supply at thd+n = 0.1% (typical, per channel) 2.7v to 5.5v operation thermal shutdown and short circuit protection internal pop reduction circuitry internal mid - rail generation low shutdown current: 0.36a (typ) at 5v shutdown pin is compatible with 1.8v logic - 40 to +85 operating temperature range available in green msop - 10 package applications portable electronic systems notebook computers mobile phones pdas gps
132mw differential input, sgm 4812 stereo audio power amplifie r 2 march 201 sg micro corp www.sg - micro.com package/ordering information model package description specified temperature range ordering number package marking packing option SGM4812 msop -10 -40 to +85 SGM4812 yms10/tr SGM4812 yms10 xxxxx tape and reel, 4 000 note: xxxxx = date code and vendor code. green (rohs & hsf): sg micro corp defines "green" to mean pb - free (rohs compatible) and free of halogen substances. if you have additional comments or questions, please contact your sgmicro representative directly. absolute maximum ratings supply voltage ................................................................... 6v input voltag e range ............................... - 0.3v to (v + ) + 0.3 v junction temperature ................................................. + 150 storage temperature range ......................... -65 to +150 lead temperature ( s oldering, 10s) ............................ + 260 esd susceptibility hbm ............................................................................. 4000v mm ................................................................................. 400v recommended operating conditions supply voltage range ........................................ 2.7 v to 5.5 v operating temperature range ....................... -40 to + 8 5 overstress caution stresses beyond those listed may cause permanent damage to the device. functional operation of the device at these or any other conditions beyond those indicated in the operational section of the specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. esd sensitivity caution this integrated circuit can be damaged by esd if you dont pay attention to esd protection. sgmicro recommends that all integrated circuits be handl ed with appropriate precautions. failure to observe proper handling and installation procedures can cause damage. esd damage can range from subtle performance degradation to complete device failure. precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. disclaimer sg micro corp reserves the right to make any change in circuit design, specification or other related things if necessary without noti ce at any time. pin configuration (top view) sgm 4812 1 2 3 10 9 8 in 1 - vo 1 v + vo 2 in 2 - 4 7 in 2 + 5 6 gnd shdn in 1 + bypass msop -1
132mw differential input, sgm 4812 stereo audio power amplifie r 3 march 201 sg micro corp www.sg - micro.com electrical characteristics (t a = +25 , unless otherwise specified.) parameter symbol conditions min typ max units supply voltage v + 2.7 5.5 v shutdown current i sd v in = 0v, v shdn = v + v + = 5v 0.36 2 a v + = 3.3v 0.13 2 v + = 2.7v 0.07 output offset voltage v os v in = 0v - 15 2 15 mv quiescent power supply current i q v in = 0v, i o = 0a v + = 5v 1.86 2.6 ma v + = 3.3v 1.58 2.5 v + = 2.7v 1.50 shutdown voltage input high v sdih 1.8 v shutdown voltage input low v sdil 0.4 power supply rejection ratio psrr v + = 3.2v to 3.4v 74 db v + = 4.9v to 5.1v 70 output power (per channel) p o f = 1khz, thd+n = 0.1% v + = 5v r l = 16 132 mw r l = 32 82 v + = 3.3v r l = 16 46 r l = 32 34 v + = 3.0v r l = 16 34 r l = 32 27 v + = 2.7v r l = 16 22 r l = 32 21 total harmonic distortion + noise thd+n p o = 60mw, v + = 5v, r l = 32, f = 20hz to 20khz 0.07 % power supply rejection ratio psrr f = 217hz, r l = 32, input grounded with 10, (c bypass = 0.47f) v + = 5v - 55 db v + = 3.3v - 55 v + = 3.0v - 55 v + = 2.7v - 55 f = 1khz, r l = 32, input grounded with 10, (c bypass = 0.47f) v + = 5v - 71 v + = 3.3v - 71 v + = 3.0v - 71 v + = 2.7v - 71 wake - up time t wu v + = 5v, c bypass = 0.47f 1.8 s signal - to - noise ratio snr v + = 5v, r l = 32, p o = 60mw, bw < 80khz - 96 db crosstalk x talk v + = 5v, r l = 32, p o = 60mw, f = 1khz - 75 db
132mw differential input, sgm 4812 stereo audio power amplifie r 4 march 201 sg micro corp www.sg - micro.com typical performance characteristics small signal step response time (2s/div) output voltage (50mv/div) time (2s/div) output voltage (50mv/div) 0.001 0.01 0.1 1 0.01 0.1 1 10 100 frequency (khz) thd+n (%) , p 0 = 25mw thd+n vs. frequency 0.001 0.01 0.1 1 0.01 0.1 1 10 100 frequency (khz) thd+n (%) , p 0 = 60mw 0.001 0.01 0.1 1 0.01 0.1 1 10 100 frequency (khz) thd+n (%) , p 0 = 25mw thd+n vs. frequency 0.001 0.01 0.1 1 0.01 0.1 1 10 100 frequency (khz) thd+n (%) , p 0 = 80mw
132mw differential input, sgm 4812 stereo audio power amplifie r 5 march 201 sg micro corp www.sg - micro.com typical performance cha racteristics (continued) small signal frequency response -9 -6 -3 0 3 0.01 0.1 1 10 frequency (mhz) normalized gain (db) v + = 3v, r l = 16 , v in = -10dbm small signal frequency response -9 -6 -3 0 3 0.01 0.1 1 10 frequency (mhz) normalized gain (db) v + = 5v, r l = 16 , v in = -10dbm small signal frequency response -9 -6 -3 0 3 0.01 0.1 1 10 frequency (mhz) normalized gain (db) v + = 3v, r l = 32 , v in = -10dbm small signal frequency response -9 -6 -3 0 3 0.01 0.1 1 10 frequency (mhz) normalized gain (db) v + = 5v, r l = 32 , v in = -10dbm thd+n vs. output pow er per channel 0.001 0.01 0.1 1 10 0.001 0.01 0.1 output pow er (w) thd+n (%) v + = 3v, r l = 16 , f = 1khz, bw < 80khz thd+n vs. output pow er per channel 0.001 0.01 0.1 1 10 0.01 0.1 1 output pow er (w) thd+n (%) v + = 5v, r l = 16 , f = 1khz, bw < 80khz
132mw differential input, sgm 4812 stereo audio power amplifie r 6 march 201 sg micro corp www.sg - micro.com typical performance characteristics (continued) thd+n vs. output pow er per channel 0.001 0.01 0.1 1 10 0.01 0.1 output pow er (w) thd+n (%) v + = 3v, r l = 32 , f = 1khz, bw < 80khz thd+n vs. output pow er per channel 0.001 0.01 0.1 1 10 0.01 0.1 1 output pow er (w) thd+n (%) , f = 1khz, bw < 80khz per channel 0 0.01 0.02 0.03 0.04 0.05 0 0.02 0.04 0.06 0.08 0.1 = 16 f = 1khz thd+n < 1% per channel 0 0.02 0.04 0.06 0.08 0.1 0 0.03 0.06 0.09 0.12 0.15 0.18 = 16 f = 1khz thd+n < 1% per channel 0 0.005 0.01 0.015 0.02 0 0.01 0.02 0.03 0.04 = 32 f = 1khz thd+n < 1% per channel 0.01 0.02 0.03 0.04 0.05 0.06 0 0.02 0.04 0.06 0.08 0.1 = 32 f = 1khz thd+n < 1%
132mw differential input, sgm 4812 stereo audio power amplifie r 7 march 201 sg micro corp www.sg - micro.com typical performance character istics (continued) output pow er vs. supply voltage 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 2 3 4 5 6 supply voltage (v) output power (w) thd+n 0.1% thd+n 1% thd+n 10% rl = 32 f = 1khz bw < 80khz output pow er vs. supply voltage 0 0.05 0.1 0.15 0.2 0.25 2 3 4 5 6 supply voltage (v) output power (w) thd+n 0.1% thd+n 1% thd+n 10% rl = 16 f = 1khz bw < 80khz wake-up time vs. bypass capacitance 0 0.5 1 1.5 2 2.5 3 0 0.2 0.4 0.6 0.8 1 1.2 bypass capacitance (f) wake-up time (s) v + = 5v r l = 16 c o = 220f
132mw differential input, sgm 4812 stereo audio power amplifie r 8 march 201 sg micro corp www.sg - micro.com typical application bias control _ + + _ in1- in1+ bypass in2+ in2- shdn vo1 vo2 r i 20k c i 0.39 f v + /2 v + c o 220f _ _ + + right in (differential) left in (differential) c bypass 0.47f gnd c i 0.39 f c i 0.39f c i 0.39f r i 20k r i 20k r i 20k r f 20k r f 20k r f 20k r f 20k c o 220f c s 1f 10k to external power supply or control i/o note: 1. a 10k resistor must be serially connected to shdn pin. revision history note: page numbers for previous revisions may differ from page numbers in the current version. march 2017 ? rev.a.3 to rev.a.4 changed packing option ................................ ................................ ................................ ................................ ................................ ..................... 2 november 2012 ? rev.a.2 to rev.a.3 add ed note for typical application c ircuit ................................ ................................ ................................ ................................ ............................ 8 may 2012 ? rev.a.1 to rev.a.2 added tape a nd reel information ................................ ................................ ................................ ................................ ................................ 10- 11 august 2010 ? rev.a to rev.a.1 updat ed electrical characteristics ................................ ................................ ................................ ................................ ................................ ....... 3 changes from original (june 20 08 ) to rev.a changed from product preview to production data ................................ ................................ ................................ ................................ ............. all
package informatio n tx00015.000 sg micro corp www.sg - micro.com package outline dimensions msop - 10 symbol dimensions in millimeters dimensions in inches min max min max a 0.8 2 0 1. 1 00 0.03 2 0.04 3 a1 0.0 2 0 0. 15 0 0.00 1 0.00 6 a2 0.7 5 0 0.9 5 0 0.030 0.03 7 b 0.180 0.280 0.007 0.011 c 0.090 0.230 0.004 0.009 d 2.900 3.100 0.114 0.122 e 2.900 3.100 0.114 0.122 e1 4.7 5 0 5. 050 0.18 7 0. 199 e 0.50 0 bsc 0.020 bsc l 0.4 0 0 0. 800 0.016 0.0 31 0 6 0 6 b e1 e e d a1 l c a a2 recommended land pattern (unit: mm)
package informatio n tx 1 0 000.0 00 sg micro corp www.sg - micro.com tape and reel information note: the picture is only for reference. please make the object as the standard. key parameter list of tape and reel package type reel diameter reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p0 (mm) p1 (mm) p2 (mm) w (mm) pin1 quadrant dd0001 msop -10 13 12.4 5.2 0 3.3 0 1.2 0 4.0 8.0 2.0 12.0 q1 reel width (w1) reel diameter reel dimensions tape dimensions direction of feed p2 p0 w p1 a0 k0 b0 q1 q2 q4 q3 q3 q4 q2 q1 q3 q4 q2 q1
package informatio n tx 2 0 000 .000 sg micro corp www.sg - micro.com carton box dimensions note: the picture is only for reference. please make the object as the standard. key parameter list of carton box reel type length (mm) width (mm) height (mm) pizza/carton dd0002 13 386 280 370 5

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