unisonic technologies co., ltd mc34119 linear integrated circuit www.unisonic.com.tw 1 of 8 copyright ? 2012 unisonic technologies co., ltd qw-r107-038,h low power audio amplifier ? description the utc mc34119 is a low power audio amplifier ic intended for the telephone applications, such as in speakerphones. it provides differential speaker outputs to maxi mize output swing at low supply voltages. coupling capacitor to t he speaker is not required. open loop gain is 80db, and the closed loop gain is set with two external resistors. the mute pin permits powering down and/or muting the input signal. ? features * wide operating supply voltage: v cc =2v~16v * low quiescent supply current (i cc =2.7ma, typ) * medium power output over 250mw at v cc =6v, r l =32 ? , thd 10% * load impedance range (8 ? ~100 ? ) * low total harmonic distortion (0.5% typ) * mute function (i cc =65 a, typ) * minimum number of external parts required ? ordering information ordering number package packing lead free halogen free mc34119l-d08-t mc34119g-d08-t dip-8 tube mc34119l-s08-r mc34119g-s08-r sop-8 tape reel mc34119l-s08-t mc34119g-s08-t sop-8 tube mc34119l-p08-r MC34119G-P08-R tssop-8 tape reel mc34119l-p08-t mc34119g-p08-t tssop-8 tube
mc34119 linear integrated circuit unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r107-038,h ? pin configuration ? pin description pin no. pin name description 1 mute this pin can be used to power down the ic to converse power, or for muting, or both. when at a logic ?low? (less than 0.8v), the ic is enabled for normal operation. when at a logic ?high? (2v to v cc ), the ic is disabled. if mute is open, that is equivalent to a logic ?low?. 2 ripple rejection a capacitor at this pin increase power supply rejection, and affects turn-on time. this pin can be left open if the capacitor at pin 3 is sufficient. 3 input(+) analog ground for the amplifiers. a 1 f capacitor at this pin (with a 5 f capacitor at pin 2) provides 52db( typ) of power s upply rejection. turn-on time of the circuit is affected by the capacitor on this pin. this pin can be used as an alternative input. 4 input(-) amplifier input. the input capacitor and re sistor set low frequency roll-off and input impedance. the feedback resistor is c onnected between this pin and output 1. 5 output 1 amplifier output 1. the dc level is about (v cc ~0.7v)/2. 6 v cc dc supply voltage is applied to this pin (v cc =2~16v). 7 gnd ground pin. 8 output 2 amplifier output 2. this signal is equal in am plitude, but 180out of phas e with that output 1, the dc level is about (vcc~0.7v)/2.
mc34119 linear integrated circuit unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r107-038,h ? block diagram out2 out1 amp 1 bias 4 mute in - in + v cc rr 3 6 2 7 gnd 1 8 5
mc34119 linear integrated circuit unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r107-038,h ? absolute maximum ratings (t a =25 c ) parameter symbol ratings unit supply voltage v cc -1~+18 v output current i out 250 ma maximum input, ripple rejection, mute pin voltage v in -1~+1 v applied output voltage (output pin when disabled) v out -1~+1 v junction temperature t j +125 c operating temperature t opr -20 ~ +85 c storage temperature t stg -40 ~ +150 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? recommended operation conditions (t a =25 c) parameter symbol ratings unit supply voltage v cc 2~16 v load impedance z l 8~100 ? peak load current i l ( peak ) 200 ma differential gain (5khz bandwidth) g v 0~46 db voltage at mute v i ( mute ) 0~v cc v ambient temperature ta -20~+70 c ? electrical characteristics (v cc =6v, t a =25 c, unless otherwise specified) parameter symbol test conditions min typ max unit dc parameter operating current i cc v cc =3v, mute=0.8v 2.7 4 ma v cc =16v, mute=0.8v 3.3 5 ma v cc =3v, mute=2v 65 100 a output voltage v out r l =16 ? , r1=75k ? , v cc =3v 1 1.15 1.25 v r l =16 ? , r1=75k ? , v cc =6v 2.65 v r l =16 ? , r1=75k ? , v cc =12v 5.65 v output offset voltage v o ( off ) v cc =6v, r f =75k ? ,r l =32 ? -30 0 30 mv output high level v oh 2v < v cc < 16v, i out =-75ma vcc-1 v output low level v ol 2v < v cc < 16v, i out =75ma 0.16 v input bias current i i ( bias ) -100 -200 na equivalent resistance r eq pin 3 100 150 220 k ? pin 2 18 25 40 k ? ac parameter open loop gain of amp. 1 g v 1 80 db open loop gain of amp. 2 g v 2 f=1khz, r l =32 ? -0.35 0 0.35 db output power p out v cc =3v, r l =16 ? , thd<10% 55 mw v cc =6v, r l =32 ? , thd<10% 250 mw v cc =12v, r l =100 ? , thd<10% 400 mw total harmonic distortion (f=1khz) thd v cc =6v, r l =32 ? , p out =125mw 0.5 1 % v cc 3v, r l =8 ? , p out =20mw 0.5 % v cc 12v, r l =32 ? , p out =200mw 0.6 % gain bandwidth product gb w 1.5 mhz power supply rejection (v cc =6v, v cc =3v) rr c1= , c2=0.01 f 50 db c1=0.1 f, c2=0, f=1khz 12 db c1=1 f, c2=5 f, f=1khz 52 db muting g v ( mute ) mute=2v, 1khz < f < 20khz 70 db
mc34119 linear integrated circuit unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r107-038,h ? typical circuit utc mc34119 1 2 6 3 4 5 8 7 75k ? 0.05 f 5.1k 5.1k vcc mute speaker utc mc34119 1 2 6 3 4 5 8 7 100k ? 0.05 f 5.1k 5.1k vcc mute speaker 0.05 f 0.05 f 5.0 f 0.1 f audio input 100k ? 0.001 f 0.01 f 5.0 f utc mc34119 1 2 6 4 3 5 8 7 75k ? vcc speaker vee -1.0v~-8.0v 10k ? 3k ? 0.1 f 4.7k ? 20k ? 20k ? vcc mute audio input audio input 0.1 f
mc34119 linear integrated circuit unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r107-038,h ? typical characteristics 0 0 200 device dissipation (mw) 100 300 400 load power (mw) device dissipation, 16 load 1000 1200 400 800 600 v cc = 6.0v v cc = 12v v cc = 16v v cc = 3.0v 200 0 0 200 400 600 800 1000 device dissipation (mw) 200 400 500 load power (mw) device dissipation, 32 load 0 0 2.0 thd, total harmonic distortion (%) 100 400 500 output power, p out (mw) distortion versus power (f = 1.0khz, avd = 34db) 8.0 10 4.0 6.0 100 300 v cc = 6.0v v cc = 3.0v v cc = 12v 200 v cc = 16v 1200 300 v cc = 12v,16v r l = 32 v cc = 6.0v r l = 32 v cc = 6.0v r l = 16 v cc = 3.0v r l = 32 v cc = 3.0v r l = 16 0 0 2.0 4.0 6.0 8.0 200 400 500 distortion versus power (f = 3.0khz, avd = 34db) 100 300 10 output power, p out (mw) thd, total harmonic distortion (%) v cc = 3.0v r l = 16 v cc = 3.0v r l = 16 v cc =12v,16v r l = 16 ,32 v cc =12v, 16v r l = 16 v cc = 6.0v r l = 16 v cc =6v r l = 16 ,32 100 0 8 differential gain (db) 1.0k 10k frequency, f (hz) differential gain versus frequency 32 40 16 24 20k r f = 150k , r i = 6.0k r f = 75k , r i = 3.0k - + #1 #2 input 0.1 r i r f v o1 v o2 v o 0 0 2.0 total harmonic distortion, thd (%) 100 400 500 output power, p out (mw) distortion versus power (f = 1, 3.0khz, avd = 12db) 8.0 10 4.0 6.0 200 300 v cc = 12v,16v r l = 16 ,32 v cc = 3.0v r l = 16 v cc = 3.0v r l = 32 v cc = 6.0v r l = 16 ,32
mc34119 linear integrated circuit unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r107-038,h ? typical characteristics(cont.) i cc , power supply current (ma) output 20mv/div input 1.0mv/div output 1.0v/div input 80mv/div v cc ?v oh (v) 0 0 0.4 output low level, v ol (v) 40 160 200 load current, i load (ma) v ol @ v o1 , v o2 versus load current 1.0 1.4 0.6 80 120 v cc = 3v v cc >6v 0.2 0.8 1.2 t a = 25c 0 0.8 40 80 120 8.0 16 input characteristics @ cd (pin 1) 4.0 200 chip disable voltage, v cd (v) i cd ( a) 12 valid for v cd v cc 160
mc34119 linear integrated circuit unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r107-038,h utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior writt en consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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