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unisonic technologies co., ltd PA3017 cmos ic www.unisonic.com.tw 1 of 10 copyright ? 2008 unisonic technologies co., ltd qw-r502-184.a 2w stereo audio amplifier ? description as a stereo audio speaker which is operating on a single 5v supply, the utc PA3017 is capable of delivering 2w of output power per channel into 3 ? loads with less than 1% thd+n. way of two terminals (gain0 and gain1) can configured and control the amplifier gain. it also provide gain settings of 6 db, 10 db, 15.6 db, and 21.6 db (inverting). other features include internal gain control which requires few external components, an active-low shutdown mode input and thermal shutdown protection. ? features * 2w output power into 3 ? load from 5v supply each channel * gain control internally * differential input fully * depop circuitry * shutdown protection thermally *pb-free plating product number: PA3017l ? ordering information ordering number normal lead free plating package packing PA3017-n20-r PA3017l-n20-r htssop-20 tape reel PA3017-n20-t PA3017l-n20-t htssop-20 tube
PA3017 cmos ic unisonic technologies co., ltd 2 of 10 www.unisonic.com.tw qw-r502-184.a ? pin configuration ? pin description pin no. pin name i/o description 1,11 13,20 gnd ground 2 gain0 i bit 0 of gain control 3 gain1 i bit 1 of gain control 4 l out + o positive output for left channel 5 l in - i negative differential input for left channel 6,15 pv dd i supply voltage 7 r in + i positive differential input for right channel 8 l out - o negative output for left channel 9 l in + i positive differential input for left channel 10 bypass tap to voltage divider for internal mid supply bias generator 12 nc nothing connection 14 r out - o negative output for right channel 16 v dd supply voltage 17 r in - i negative differential input for right channel 18 r out + o positive output for right channel 19 shutdown i in shutdown mode when held low
PA3017 cmos ic unisonic technologies co., ltd 3 of 10 www.unisonic.com.tw qw-r502-184.a ? absolute maximum ratings parameter symbol ratings unit supply voltage v cc 6 v input voltage v in -0.3~v dd ~+0.3 v junction temperature t j +150
operating temperature t opr -40~+85
storage temperature t stg -65~+150
note absolute maximum ratings are those values beyo nd which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol min typ max unit thermal resistance ja 87.9
/w ? electrical characteristics (t a = 25
) parameter symbol test conditions min typ max unit dc electrical characteristics supply voltage v dd 4.5 5 5.5 v high-level input voltage v ih shutdown, gain0, gain1 2 v low-level input voltage v il shutdown, gain0, gain1 0.8 v dc differential output voltage v out(diff) v dd = 5v, gain = 2 5 25 mv supply current in mute mode i dd shutdown =2v 10.7 ma supply current, shutdown mode i dd(sd) shutdown =0.8v 80 300 a high-level input current |i ih | v dd = 5.5v, v in = v dd 1 a low-level input current |i il | v dd =5.5v, v in = 0v 1 a ac electrical characteristics (v dd = 5.0v, r l = 8 ? , g=-2v/v) output power p out thd =1%, btl, r l = 4 ? , g=-2v/v 1.9 w total harmonic distortion plus noise thd+n p out = 1w, btl, r l = 8 ? , f=20hz to 5khz 0.05 @1khz % max output power bandwidth b om thd = 5% 15 khz power supply ripple rejection psrr v dd = 4.5 v ~ 5.5 v 77 db signal-to-noise ratio snr p out = 500mw, btl, g=-2v/v 100 db output noise voltage v n c b =0.47f, f=20 hz ~20 khz 20.3 v (rms) supply ripple rejection ratio ksvr f =1khz, c b =0.47f -75 db note output power is measured at the output terminals of the ic at 1khz
PA3017 cmos ic unisonic technologies co., ltd 4 of 10 www.unisonic.com.tw qw-r502-184.a ? typical application circuit gain control power management 17 r in - right line input signal c rin+ 0.47f 7r in + 2gain0 3gain1 5l in - left line input signal 9l in + c lin+ 0.47f 8 l out - 4 l out + gnd shutdown 19 bypass 10 v dd 16 pv dd 6, 15 r out - 14 r out + 18 1, 11, 13, 20 to system control c sr 0.1f v dd c sr 0.1f c byp 0.47f
PA3017 cmos ic unisonic technologies co., ltd 5 of 10 www.unisonic.com.tw qw-r502-184.a ? typical application circuit
PA3017 cmos ic unisonic technologies co., ltd 6 of 10 www.unisonic.com.tw qw-r502-184.a ? application information shutdown mode operating shutdown pin input the amplifier?s output low mute(the current of this device will be reduced to 160a ) high btl others don?t care c i (input capacitor) the value of c i is important to consider as it directly affect s the bass performance of the application circuit. when c i is required to allow the amplifier to bias the input signal to the proper dc level for optimum operation, it?s value can be calculate by this equation: ci=1/(2 r i f c ) r i :input impedance f c :high-pass filter?s frequency the low leakage tantalum or ceramic capacitors are sug gested to be used as the input coupling capacitors, because of the small leakage current of the input ca-pacitors will cause the dc offset voltage at the input to the amplifier that reduces the operation headroo m, especially at the high gai n applications. it is important to let the positive side connecting to the higher dc level of the appl ication when using the polarized capacitors. gain setting (vs gain0, gain1 and r i ) gain setting is determined by gain0 and gain1. the gains lis ted in the next table are re alized by changing the taps on the input resistors inside the amplifier wh ich will cause the internal input impedance(r i ) to be dependent on the gain setting as we can see listed in the next table. a v (db) gain0 gain1 r i (k ? ) 6 0 0 90 10 0 1 70 15.6 1 0 45 21.6 1 1 25
PA3017 cmos ic unisonic technologies co., ltd 7 of 10 www.unisonic.com.tw qw-r502-184.a ? typical characteristics total harmonic distortion plus+noise, thd+n (%) total harmonic distortion plus+noise, thd+n (%) total harmonic distortion plus+noise, thd+n (%) total harmonic distortion plus+noise, thd+n (%) 10m total harmonic distortion plus noise vs output power total harmonic distortion plus+noise, thd+n (%) output power, p out (w) 10 20m 50m100m200m500m 1 2 3 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 f=10khz r l =3ohm a v =21.6db f=1khz f=20khz f=20hz 10m total harmonic distortion plus noise vs output power total harmonic distortion plus+noise, thd+n (%) output power, p out (w) 10 20m 50m100m200m500m 1 2 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 r l =4ohm a v =6db f=10khz f=20khz f=1khz f=20hz 3
PA3017 cmos ic unisonic technologies co., ltd 8 of 10 www.unisonic.com.tw qw-r502-184.a ? typical characteristics(cont.) 10m total harmonic distortion plus noise vs output power total harmonic distortion plus+noise, thd+n (%) output power, p out (w) 10 20m 50m100m200m500m 1 2 3 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 f=10khz r l =4ohm a v =15.6db f=1khz f=20khz f=20hz 10m total harmonic distortion plus noise vs output power total harmonic distortion plus+noise, thd+n (%) output power, p out (w) 10 20m 50m100m200m500m 1 2 3 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 f=10khz r l =4ohm a v =21.6db f=1khz f=20khz f=20hz total harmonic distortion plus+noise, thd+n (%) total harmonic distortion plus+noise, thd+n (%) 10m total harmonic distortion plus+noise, thd+n (%) output power, p out (w) 10 20m 50m100m 200m 500m 1 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 r l =8ohm a v =21.6db f=20hz f=1khz 2 f=20khz total harmonic distortion plus noise vs output power f=10khz 20 output noise voltage , vn (uv) bandwidth, bw (hz) 100u 50 100200 500 2k 10k 50u 20u 10u 5u 2u 1u 20k output noise voltage vs bandwidth a v =21.6db a v =6db a v =15.6db v dd =5v r l =4ohm 1k 5k
PA3017 cmos ic unisonic technologies co., ltd 9 of 10 www.unisonic.com.tw qw-r502-184.a ? typical characteristics(cont.) crosstalk (db) shutdown attenuation (db) 20 signal-to-noise ratio, snr (db) frequency, f (hz) +120 50 100200 500 2k 10k +80 +50 +40 20k signal-to-noise ratio vs freqency 1k 5k +60 +70 +90 +100 +110 a v =6db a v =21.6db a v =15.6db p o =1w r l =8ohm 20 gain (db) frequency, f (hz) +30 50100 500 1k 2k 10k +10 -5 -10 50k closed loop response 5k +0 +5 +15 +20 +25 +180 +120 +60 +0 -60 -120 -180 200k r l =8ohm a v =6db phase gain 20 gain (db) frequency, f (hz) +30 50100 500 1k 2k 10k +10 -5 -10 50k closed loop response 5k +0 +5 +15 +20 +25 +180 +120 +60 +0 -60 -120 -180 200k r l =8ohm a v =15.6db phase gain 20 gain (db) frequency, f (hz) +30 50100 500 1k 2k 10k +10 -5 -10 50k closed loop response 5k +0 +5 +15 +20 +25 +180 +120 +60 +0 -60 -120 -180 200k r l =8ohm a v =21.6db phase gain
PA3017 cmos ic unisonic technologies co., ltd 10 of 10 www.unisonic.com.tw qw-r502-184.a ? typical characteristics(cont.) output power , p o (w) power dissipation , p d (w) 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 written 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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