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device operating temperature range package semiconductor technical data low power audio amplifier ordering information mc34119p MC34119D t a = 20 to +70 c plastic dip so8 pin connections order this document by mc34119/d d suffix plastic package case 751 (so8) p suffix plastic package case 626 8 1 8 1 (top view) 1 2 3 4 8 7 6 5 cd fc2 fc1 v in v o2 gnd v cc v o1 MC34119Dtb tssop dtb suffix plastic package case 948j (tssop) 8 1 1 motorola analog ic device data
the mc34119 is a low power audio amplifier intergrated circuit intended (primarily) for telephone applications, such as in speakerphones. it provides differential speaker outputs to maximize output swing at low supply voltages (2.0 v minimum). coupling capacitors to the speaker are not required. open loop gain is 80 db, and the closed loop gain is set with two external resistors. a chip disable pin permits powering down and/or muting the input signal. the mc34119 is available in standard 8pin dip, soic package, and tssop package. ? wide operating supply voltage range (2.0 v to 16 v), allows telephone line powered applications ? low quiescent supply current (2.7 ma typ) for battery powered applications ? chip disable input to power down the ic ? low powerdown quiescent current (65 m a typ) ? drives a wide range of speaker loads (8.0 w and up) ? output power exceeds 250 mw with 32 w speaker ? low total harmonic distortion (0.5% typ) ? gain adjustable from <0 db to >46 db for voice band ? requires few external components maximum ratings rating value unit supply voltage 1.0 to +18 vdc maximum output current at v o1 , v o2 250 ma maximum voltage @ v in , fc1, fc2, cd applied output voltage to v o1 , v o2 when disabled 1.0, v cc + 1.0 1.0, v cc + 1.0 vdc junction temperature 55, +140 c note: esd data available upon request. block diagram and simplified application * = optional differential gian = 2 x r f r i + #1 + #2 mc34119 bias circuit speaker chip disable audio input gnd rf 75 k 6v cc c i 0.1 r i 3.0 k v in 4 fc1 3 c1 1.0 m f c2* 5.0 m f fc2 2 50 k 125 k 50 k 4.0 k 4.0 k 7 5 v o1 8 v o2 1 cd this device contains 45 active transistors. ? motorola, inc. 1996 rev 1
mc34119 2 motorola analog ic device data recommended operating conditions characteristics symbol min max unit supply voltage v cc +2.0 +16 vdc voltage @ cd (pin 1) v cd 0 v cc vdc load impedance r l 8.0 w peak load current i l 200 ma differential gain (5.0 khz bandwidth) avd 0 46 db ambient temperature t a 20 +70 c electrical characteristics (t a = 25 c, unless otherwise noted.) characteristics symbol min typ max unit amplifiers (ac characteristics) ac input resistance (@ v in ) r i >30 m w open loop gain (amplifier #1, f < 100 hz) a vol1 80 db closed loop gain (amplifier #2, v cc = 6.0 v, f = 1.0 khz, r l = 32 w ) a v2 0.35 0 +0.35 db gain bandwidth product gbw 1.5 mhz output power; mw v cc = 3.0 v, r l = 16 w , thd 10% p out3 55 v cc = 6.0 v, r l = 32 w, thd 10% p out6 250 v cc = 12 v, r l = 100 w, thd 10% p out12 400 total harmonic distortion (f = 1.0 khz) thd % (v cc = 6.0 v, r l = 32 w , p out = 125 mw) 0.5 1.0 (v cc 3.0 v, r l = 8.0 w , p out = 20 mw) 0.5 (v cc 12 v, r l = 32 w , p out = 200 mw) 0.6 power supply rejection (v cc = 6.0 v, d v cc = 3.0 v) psrr db (c1 = , c2 = 0.01 m f) 50 (c1 = 0.1 m f, c2 = 0, f = 1.0 khz) 12 (c1 = 1.0 m f, c2 = 5.0 m f, f = 1.0 khz) 52 differential muting (v cc = 6.0 v, 1.0 khz f 20 khz, cd = 2.0 v) gmt >70 db amplifiers (dc characteristics) output dc level @ v o1 , v o2 , v cc = 3.0 v, r l = 16 (r f = 75 k) v o(3) 1.0 1.15 1.25 vdc v cc = 6.0 v v o(6) 2.65 v cc = 12 v v o(12) 5.65 output level vdc high (i out = 75 ma, 2.0 v v cc 16 v) v oh v cc 1.0 low (i out = 75 ma, 2.0 v v cc 16 v) v ol 0.16 output dc offset voltage (v o1 v o2 ) d v o mv (v cc = 6.0 v, r f = 75 k w , r l = 32 w ) 30 0 +30 input bias current @ v in (v cc = 6.0 v) i ib 100 200 na equivalent resistance k w @ fc1 (v cc = 6.0 v) r fc1 100 150 220 @ fc2 (v cc = 6.0 v) r fc2 18 25 40 chip disable (pin 1) input voltage vdc low v il 0.8 high v ih 2.0 input resistance (v cc = v cd = 16 v) r cd 50 90 175 k w power supply power supply current (v cc = 3.0 v, r l = , cd = 0.8 v) i cc3 2.7 4.0 ma (v cc = 16 v, r l = , cd = 0.8 v) i cc16 3.3 5.0 ma (v cc = 3.0 v, r l = , cd = 2.0 v) i ccd 65 100 m a note: currents into a pin are positive, currents out of a pin are negative.
mc34119 3 motorola analog ic device data pin function description symbol pin description cd 1 chip disable digital input. a logic a0o (<0.8 v) sets normal operation. a logic a1o ( 2.0 v) sets the power down mode. input impedance is nominally 90 k w . fc2 2 a capacitor at this pin increases power supply rejection, and affects turnon time. this pin can be left open if the capacitor at fc1 is sufficient. fc1 3 analog ground for the amplifiers. a 1.0 m f capacitor at this pin (with a 5.0 m f capacitor at pin 2) provides (typically) 52 db of power supply rejection. turnon time of the circuit is affected by the capacitor on this pin. this pin can be used as an alternate input. v in 4 amplifier input. the input capacitor and resistor set low frequency rolloff and input impedance. the feedback resistor is connected to this pin and v o1 . v o1 5 amplifier output #1. the dc level is (v cc 0.7 v)/2. v cc 6 dc supply voltage (+2.0 v to +16 v) is applied to this pin. gnd 7 ground pin for the entire circuit. v o2 8 amplifier output #2. this signal is equal in amplitude, but 180 outofphase with that at v o1 . the dc level is (v cc 0.7 v)/2. typical temperature performance (20 c < t a < +70 c) function typical change units input bias current (@ v in ) 40 pa/ c total harmonic distortion +0.003 %/ c (v cc = 6.0 v, r l = 32 w . p out = 125 mw, f = 1.0 khz) power supply current m a/ c (v cc = 3.0 v, r l = , cd = 0 v) 2.5 (v cc = 3.0 v, r l = , cd = 2.0 v) 0.03
mc34119 4 motorola analog ic device data design guidelines general the mc34119 is a low power audio amplifier capable of low voltage operation (v cc = 2.0 v minimum) such as that encountered in linepowered speakerphones. the circuit provides a differential output (v o1 v o2 ) to the speaker to maximize the available voltage swing at low voltages. the differential gain is set by two external resistors. pins fc1 and fc2 allow controlling the amount of power supply and noise rejection, as well as providing alternate inputs to the amplifiers. the cd pin permits powering down the ic for muting purposes and to conserve power. amplifiers referring to the block diagram, the internal configuration consists of two identical operational amplifiers. amplifier #1 has an open loop gain of 80 db (at f 100 hz), and the closed loop gain is set by external resistor r f and r i . the amplifier is unity gain stable, and has a unity gain frequency of approximately 1.5 mhz. in order to adequately cover the telephone voice band (300 hz to 3400 hz), a maximum closed loop gain of 46 is recommended. amplifier #2 is internally set to a gain of 1.0 (0 db). the outputs of both amplifiers are capable of sourcing and sinking a peak current of 200 ma. the outputs can typically swing to within 0.4 v above ground, and to within 1.3 v below v cc , at the maximum current. see figures 18 and 19 for v oh and v ol curves. the output dc offset voltage (v o1 v o2 ) is primarily a function of the feedback resistor (r f ), and secondarily due to the amplifiers' input offset voltages. the input offset voltage of the two amplifiers will generally be similar for a particular ic, and therefore nearly cancel each other at the outputs. amplifier #1's bias current, however, flows out of v in (pin 4) and through r f , forcing v o1 to shift negative by an amount equal to [r f i ib ]. v o2 is shifted positive an equal amount. the output offset voltage, specified in the electrical characteristics, is measured with the feedback resistor shown in the typical application circuit, and therefore takes into account the bias current as well as internal offset voltages of the amplifiers. the bias current is constant with respect to v cc . fc1 and fc2 power supply rejection is provided by the capacitors (c1 and c2 in the typical application circuit) at fc1 and fc2. c2 is somewhat dominant at low frequencies, while c1 is dominant at high frequencies, as shown in the graphs of figures 4 to 7. the required values of c1 and c2 depend on the conditions of each application. a line powered speakerphone, for example, will require more filtering than a circuit powered by a well regulated power supply. the amount of rejection is a function of the capacitors, and the equivalent impedance looking into fc1 and fc2 (listed in the electrical characteristics as r fc1 and r fc2 ). in addition to providing filtering, c1 and c2 also affect the turnon time of the circuit at powerup, since the two capacitors must charge up through the internal 50 k and 125 k w resistors. the graph of figure 1 indicates the turnon time upon application of v cc of +6.0 v. the turnon time is 60% longer for v cc = 3.0 v, and 20% less for v cc = 9.0 v. turnoff time is <10 m s upon removal of v cc . t, turnon time (ms) c2, capacitance ( m f) figure 1. turnon time versus c1, c2 at poweron 360 300 240 180 120 60 0 0 2.0 4.0 6.0 8.0 10 c1 = 5.0 m f c1 = 1.0 m f v cc switching from 0 v to 6.0 v chip disable the chip disable (pin 1) can be used to power down the ic to conserve power, or for muting, or both. when at a logic a0o (0 v to 0.8 v), the mc34119 is enabled for normal operation. when pin 1 is at a logic a1o (2.0 v to v cc v), the ic is disabled. if pin 1 is open, that is equivalent to a logic a0,o although good design practice dictates that an input should never be left open. input impedance at pin 1 is a nominal 90 k w . the power supply current (when disabled) is shown in figure 15. muting, defined as the change in differential gain from normal operation to muted operation, is in excess of 70 db. the turnoff time of the audio output, from the application of the cd signal, is <2.0 m s, and turn ontime is 12 ms15 ms. both times are independent of c1, c2, and v cc . when the mc34119 is disabled, the voltages at fc1 and fc2 do not change as they are powered from v cc . the outputs, v o1 and v o2 , change to a high impedance condition, removing the signal from the speaker. if signals from other sources are to be applied to the outputs (while disabled), they must be within the range of v cc and ground. power dissipation figures 8 to 10 indicate the device dissipation (within the ic) for various combinations of v cc , r l , and load power. the maximum power which can safely be dissipated within the mc34119 is found from the following equation: p d = (140 c t a )/ q ja where t a is the ambient temperature; and q ja is the package thermal resistance (100 c/w for the standard dip package, and 180 c/w for the surface mount package.) the power dissipated within the mc34119, in a given application, is found from the following equation: p d = (v cc x i cc ) + (i rms x v cc ) (r l x i rms 2 ) where i cc is obtained from figure 15; and i rms is the rms current at the load; and r l is the load resistance. figures 8 to 10, along with figures 11 to 13 (distortion curves), and a peak working load current of 200 ma, define the operating range for the mc34119. the operating range is further defined in terms of allowable load power in figure 14 for loads of 8.0 w , 16 w and 32 w . the left (ascending) portion
mc34119 5 motorola analog ic device data of each of the three curves is defined by the power level at which 10% distortion occurs. the center flat portion of each curve is defined by the maximum output current capability of the mc34119. the right (descending) portion of each curve is defined by the maximum internal power dissipation of the ic at 25 c. at higher ambient temperatures, the maximum load power must be reduced according to the above equations. operating the device beyond the current and junction temperature limits will degrade long term reliability. layout considerations normally a snubber is not needed at the output of the mc34119, unlike many other audio amplifiers. however, the pc board layout, stray capacitances, and the manner in which the speaker wires are configured, may dictate otherwise. generally, the speaker wires should be twisted tightly, and not more than a few inches in length. figure 2. amplifier #1 open loop gain and phase figure 3. differential gain versus frequency vol , excess phase (degrees) 0 36 72 108 144 180 differential gain (db) f 100 80 60 40 20 0 36 32 24 16 8 0 f, frequency (hz) 100 1.0 k 10 k 100 k 1.0 m f, frequency (hz) 100 1.0 k 10 k 20 k + #1 #2 0.1 r i r f input v o1 v o2 v o phase gain r f = 150 k, r i = 6.0 k r f = 75 k, r i = 3.0 k a (db)
mc34119 6 motorola analog ic device data figure 4. power supply rejection versus frequency (c2 = 10 m f) figure 5. power supply rejection versus frequency (c2 = 5.0 m f) figure 6. power supply rejection versus frequency (c2 = 1.0 m f) figure 7. power supply rejection versus frequency (c2 = 0) psrr, power supply rejection (db) psrr, power supply rejection (db) psrr, power supply rejection (db) psrr, power supply rejection (db) figure 8. device dissipation, 8.0 w load figure 9. device dissipation, 16 w load device dissipation (mw) device dissipation (mw) 60 50 40 30 20 10 0 60 50 40 20 10 0 60 50 40 30 20 10 0 60 50 40 30 20 10 0 1000 800 600 400 200 0 1200 1000 800 600 400 200 0 f, frequency (hz) 200 1.0 k 10 k 20 k f, frequency (hz) 200 1.0 k 10 k 20 k f, frequency (hz) 200 1.0 k 10 k 20 k f, frequency (hz) 200 1.0 k 10 k 20 k load power (mw) 0 30 60 90 120 150 load power (mw) 0 100 200 300 400 c1 1.0 m f c1 = 0.1 m f c1 = 0 c1 1.0 m f c1 = 0.1 m f c1 = 0 c1 = 5.0 m f c1 = 1.0 m f c1 = 0.1 m f c1 = 0 v cc = 12 v v cc = 6.0 v v cc = 3.0 v v cc = 16 v v cc = 12 v v cc = 6.0 v v cc = 3.0 v c1 = 5.0 m f c1 = 1.0 m f c1 = 0.1 m f 30
mc34119 7 motorola analog ic device data figure 10. device dissipation, 32 w load figure 11. distortion versus power (f = 1.0 khz, avd = 34 db) figure 12. distortion versus power (f = 3.0 khz, avd = 34 db) figure 13. distortion versus power (f = 1, 3.0 khz, avd = 12 db) figure 14. maximum allowable load power figure 15. power supply current device dissipation (mw) thd, total harmonic distortion (%) thd, total harmonic distortion (%) thd, total harmonic distortion (%) load power (mw) i , power supply current (ma) cc 1200 1000 800 600 400 200 0 10 8.0 6.0 4.0 2.0 0 10 8.0 6.0 4.0 2.0 0 10 8.0 4.0 2.0 0 500 400 300 200 100 0 4.0 3.0 2.0 1.0 0 load power (mw) 0 100 200 300 400 500 p out , output power (mw) 0 100 200 300 400 500 p out , output power (mw) 0 100 200 300 400 500 p out , output power (mw) 0 100 200 300 400 500 v cc , supply voltage (v) 0 2.0 4.0 6.0 8.0 10 12 14 16 v cc , supply voltage (v) 0 2.0 4.0 6.0 8.0 10 12 14 16 v cc = 16 v v cc = 12 v v cc = 6.0 v v cc = 3.0 v v cc = 16 v, r l = 32 w v cc = 6.0 v, r l = 16 w v cc = 12 v, r l = 32 w v cc = 3.0 v, r l = 8.0 w v cc = 6.0 v, r l = 32 w v cc = 16 v, r l = 32 w limit v cc = 6.0 v, r l = 16 w v cc = 3.0 v, r l = 16 w v cc = 3.0 v, r l = 8.0 w v cc = 12 v, r l = 32 w v cc = 3.0 v, r l = 16 w v cc = 16 v, r l = 32 w limit v cc = 6.0 v, r l = 16 w limit v cc = 12 v, r l = 32 w v cc = 3.0 v, r l = 8.0 w r l = 32 w r l = 16 w r l = 8.0 w t a = 25 cderate at higher temperatures r l = cd = 0 cd = v cc v cc = 3.0 v, r l = 16 w v cc = 6.0 v, r l = 32 w 6.0 v cc = 6.0 v, r l = 32 w
mc34119 8 motorola analog ic device data figure 16. small signal response figure 17. large signal response figure 18. v cc v oh @ v o1 , v o2 versus load current figure 19. v ol @ v o1 , v o2 versus load current figure 20. input characteristics @ cd (pin 1) figure 21. audio amplifier with high input impedance 20 m s/div 20 m s/div cc v oh v (v) v ol input 80 mv/div output 1.0 v/div output 20 mv/div input 1.0 mv/div 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 200 160 120 80 40 0 i load , load current (ma) 0 40 80 120 160 200 i load , load current (ma) 0 40 80 120 160 200 v cd , chip disable voltage (v) 0 4.0 8.0 12 16 2.0 v cc 16 v t a = 25 c t a = 25 c vcc 6.0 v v cc = 3.0 v v cc = 2.0 v valid for v cd v cc differential gain = 34 db frequency response: see figure 3 input impedance 125 k w psrr 50 db + + #1 #2 bias circuit mc34119 75 k 6v cc 4 3 2 0.1 3.0 k 0.1 input 5.0 m f 50 k 125 k 50 k 4.0 k 4.0 k 7 gnd 5 8 1 speaker disable , output low level (v) , ( m a) i cd
mc34119 9 motorola analog ic device data figure 22. audio amplifier with bass suppression figure 23. frequency response of figure 22 figure 24. audio amplifier with bandpass figure 25. frequency response of figure 24 75 k avd, differential gain (db) avd, differential gain (db) + + #1 #2 bias circuit mc34119 6v cc 4 3 2 5.1 k 0.1 input 5.0 m f 50 k 125 k 50 k 4.0 k 4.0 k 7 gnd 5 8 1 speaker disable 0.05 0.05 5.1 k + + #1 #2 bias circuit mc34119 6v cc 4 3 2 5.1 k 0.1 input 5.0 m f 50 k 125 k 50 k 4.0 k 4.0 k 7 gnd 5 8 1 speaker disable 0.05 0.05 5.1 k 1000 pf 100 k 100 k 1000 pf 36 32 24 16 8.0 0 36 32 24 16 8.0 0 f, frequency (hz) 100 1.0 k 10 k 20 k f, frequency (hz) 100 1.0 k 10 k 20 k + + #1 #2 bias circuit mc34119 6v cc (+1.0 v to +8.0 v) 4 3 2 50 k 125 k 50 k 4.0 k 4.0 k 7 v ee (1.0 v to 8.0 v) 5 8 cd speaker r f 75 k v o1 v o2 audio input c i 0.1 r i 3.0 k v in fc1 fc2 1 4700 v cc v ee 10 k 20 k 20 k chip disable note: if v cc and v ee are not symmetrical about ground then fc1 must be connected through a capacitor to ground as shown on the front page. figure 26. split supply operation
mc34119 10 motorola analog ic device data p suffix plastic package case 62605 issue k d suffix plastic package case 75105 (so8) issue p outline dimensions notes: 1. dimension l to center of lead when formed parallel. 2. package contour optional (round or square corners). 3. dimensioning and tolerancing per ansi y14.5m, 1982. 14 5 8 f note 2 a b t seating plane h j g d k n c l m m a m 0.13 (0.005) b m t dim min max min max inches millimeters a 9.40 10.16 0.370 0.400 b 6.10 6.60 0.240 0.260 c 3.94 4.45 0.155 0.175 d 0.38 0.51 0.015 0.020 f 1.02 1.78 0.040 0.070 g 2.54 bsc 0.100 bsc h 0.76 1.27 0.030 0.050 j 0.20 0.30 0.008 0.012 k 2.92 3.43 0.115 0.135 l 7.62 bsc 0.300 bsc m 10 10 n 0.76 1.01 0.030 0.040 seating plane 1 4 5 8 c k 4x p a 0.25 (0.010) m tb ss 0.25 (0.010) m b m 8x d r m j x 45 f a b t dim min max millimeters a 4.80 5.00 b 3.80 4.00 c 1.35 1.75 d 0.35 0.49 f 0.40 1.25 g 1.27 bsc j 0.18 0.25 k 0.10 0.25 m 0 7 p 5.80 6.20 r 0.25 0.50 g notes: 1. dimensions a and b are datums and t is a datum surface. 2. dimensioning and tolerancing per ansi y14.5m, 1982. 3. dimensions are in millimeter. 4. dimension a and b do not include mold protrusion. 5. maximum mold protrusion 0.15 per side. 6. dimension d does not include mold protrusion. allowable dambar protrusion shall be 0.127 total in excess of the d dimension at maximum material condition.
mc34119 11 motorola analog ic device data dtb suffix plastic package case 948j01 (tssop) issue o outline dimensions ??? ??? ??? dim min max min max inches millimeters a 2.90 3.10 0.114 0.122 b 4.30 4.50 0.169 0.177 c 1.20 0.047 d 0.05 0.15 0.002 0.006 f 0.50 0.75 0.020 0.030 g 0.65 bsc 0.026 bsc h 0.50 0.60 0.020 0.024 j 0.09 0.20 0.004 0.008 j1 0.09 0.16 0.004 0.006 k 0.19 0.30 0.007 0.012 k1 0.19 0.25 0.007 0.010 l 6.40 bsc 0.252 bsc m 0 8 0 8 notes: 1 dimensioning and tolerancing per ansi y14.5m, 1982. 2 controlling dimension: millimeter. 3 dimension a does not include mold flash. protrusions or gate burrs. mold flash or gate burrs shall not exceed 0.15 (0.006) per side. 4 dimension b does not include interlead flash or protrusion. interlead flash or protrusion shall not exceed 0.25 (0.010) per side. 5 dimension k does not include dambar protrusion. allowable dambar protrusion shall be 0.08 (0.003) total in excess of the k dimension at maximum material condition. 6 terminal numbers are shown for reference only. 7 dimension a and b are to be determined at datum plane w. section nn seating plane ident. pin 1 1 4 8 5 see detail e j j1 b c d a k k1 h g detail e f m l 2x l/2 u s u 0.15 (0.006) t s u 0.15 (0.006) t s u m 0.10 (0.004) v s t 0.10 (0.004) t v w 0.25 (0.010) 8x ref k n n
mc34119 12 motorola analog ic device data motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. atypicalo parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the motorola product could create a situation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the part. motorola and are registered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. how to reach us: usa / europe / locations not listed : motorola literature distribution; japan : nippon motorola ltd.; tatsumispdjldc, 6f seibubutsuryucenter, p.o. box 20912; phoenix, arizona 85036. 18004412447 or 6023035454 3142 tatsumi kotoku, tokyo 135, japan. 038135218315 mfax : rmfax0@email.sps.mot.com touchtone 6 022446609 asia / pacific : motorola semiconductors h.k. ltd.; 8b tai ping industrial park, internet : http://designnet.com 51 ting kok r oad, tai po, n.t., hong kong. 85226629298 mc34119/d ?

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