unisonic technologies co., ltd pa7522 linear integrated circuit www.unisonic.com.tw 1 of 8 copyright ? 2009 unisonic technologies co., ltd qw-r107-059.a dual 3-w btl audio power amplifier ? description the utc pa7522 is an audio power amplifier ic for the stereo system. in the btl (bal anced transformer less) method, fewer external parts and easier design for applications are required. ? features * 3-w output (8 ? ) with supply voltage of 8v * on-chip standby function * on-chip volume function lead-free: pa7522l halogen-free: pa7522g ? ordering information ordering number normal lead free plating halogen free package packing pa7522- h12-a-t pa7522l- h12-a-t pa7522g- h12-a-t hsip-12a tube pa7522- h14-b-t pa7522l- h14-b-t pa7522g- h14-b-t hsip-14b tube
pa7522 linear integrated circuit unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r107-059.a ? pin description pin no. hsip-12a hsip-14b pin name description - 1 nc no connect 1 2 v cc supply voltage 2 3 ch.1+ output ch.1+ output 3 4 gnd ground (output ch.1) 4 5 ch.1- output ch.1 - output 5 6 standby standby (standby stat e if this pin is open) 6 7 ch.1 input ch.1 input 7 8 gnd ground (input) 8 9 ch.2 input ch.2 input 9 10 volume volume (max. volume if this pin is open.) 10 11 ch.2- output ch.2 - output 11 12 gnd ground (output ch.2) 12 13 ch.2+ output ch.2 + output - 14 nc no connect
pa7522 linear integrated circuit unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r107-059.a ? block diagram hsip-12a hsip-14b + - + - vcc ch.1+ output gnd (ch.1 output) ch.1- output standby ch.1 input gnd ch.2 input volume ch.2- output gnd (ch.2 output) ch.2+ output 1 2 3 4 5 6 7 8 9 10 11 12 - - + + + - + - vcc ch.1+ output gnd (ch.1 output) ch.1- output standby ch.1 input gnd ch.2 input volume ch.2- output gnd (ch.2 output) ch.2+ output 2 3 4 5 6 7 8 9 10 11 12 13 - - + + 14 1
pa7522 linear integrated circuit unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r107-059.a ? absolute maximum ratings (ta = 25 c ) parameter symbol ratings unit supply voltage (at no signal) v cc 14 v supply current i cc 2.0 a power dissipation(ta = 70 c) p d 1.92 w operating temperature t opr 0 ~ +70 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 an d functional device operat ion is not implied. ? recommended operating ratings parameter symbol ratings unit supply voltage v cc 3.5 ~ 13.5 v ? electrical characteristics (v cc =8.0v, r l =8 ? , f=1khz, ta=25 c2 c, unless otherwise specified.) parameter symbol test conditions min typ max unit quiescent circuit current i d v in =0mv, vo1.=0v 45 100 ma standby current i stn-by v in =0mv, vo1.=0v 1 10 a output noise voltage (note) v no r g =10k , vo1.=0v 0.10 0.4 mv(rms) output offset voltage v off r g =10k , vo1.=0v -250 0 250 mv total harmonic distortion thd p out =0.5w, vo1.=1.25v 0.10 0.5 % maximum output power p out1 thd=10%, vo1.=1.25v 2.4 3.0 w ripple rejection (note) rr r g =10k , vo1.=0v v r =1v(rms), f r =120hz 30 50 db voltage gain g v p out =0.5w, vo1.=1.25v 31 33 35 db volume attenuation rate* att p out =0.5w, vo1.=0v 70 85 db channel balance 1 cb1 p out =0.5w, vo1.=1.25v -1 0 1 db channel balance 2 cb2 p out =0.5w, vo1.=0.6v -3 0 3 db intermediate voltage gain g vm p out =0.5w, vo1.=0.6v 20.5 23.5 26.5 db channel crosstalk c t p out =0.5w, vo1.=1.25v 40 55 db note: in measuring, the filter for the r ange of 15 hz ~ 30 khz (12 db/oct) is used.
pa7522 linear integrated circuit unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r107-059.a ? terminal equivalent circuits at v cc =8v pin no. hsip-12a hsip-14b pin name voltage 1 2 v cc 8v 2 3 ch.1 + output pin 3.6v (at no signal) 3 4 gnd 0v 4 5 ch.1 - output pin 3.9v (at no signal) 5 6 standby pin 0v or 5v (standby off at supply 5v. standby at 0.4v less or open. ) 6 7 ch.1 input pin 1.4v (input circuit bias voltage is output) 7 8 gnd 0v 8 9 ch.2 input pin 1.4v (input circuit bias voltage is output) 9 10 volume pin supply to 0v ~ 1.25v 10 11 ch.2-output pin 3.9v (at no signal) 11 12 gnd 0v 12 13 ch.2+ output pin 3.6v (at no signal) ? usage notes * please avoid the short-circuits to v cc , ground, or load short-circuit. * please connect the cooling fin with the gnd potential. * the thermal shutdown circuit operates at about t j =150 c. however, the thermal shutdown circuit is reset automatically if the temperature drops. * please carefully design the heat radiation es pecially when you take out high power at high v cc . * please connect only the ground of signal with the si gnal gnd of the amplifie r in the previous stage.
pa7522 linear integrated circuit unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r107-059.a ? application circuit example + - + - 1 2 3 4 5 6 7 8 9 10 11 12 - - + + 470 f v cc 8 ? out 1 10 f ++ 68k ? 270k ? 10k ? standby v in1 1.0 f + 1.0 f + 10k ? v in2 volume 8 out 2
pa7522 linear integrated circuit unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r107-059.a ? typical characteristics 70 60 50 40 30 20 10 0 0 246 10 81214 0.0 1.0 2.0 3.0 4.0 5.0 7.0 6.0 9.0 8.0 10.0 standby current, i stb (a) quiescent circuit current, i cq (ma) supply voltage, v cc (v) i cq , i stb vs. v cc i cq vs. v stb 0.10 quiescent circuit current, i cq (ma) standby voltage, v stb (v) 0123 5 4 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 v cc =8v, v stb =0v v ol =0v, r l =8 , r g =10k i cq i stb v cc =8v, v stb =5v v ol =0v, r l =8 , r g =10k 25 26 27 28 29 30 31 32 33 34 35 46 10 81214 supply voltage, v cc (v) voltage gain, g v (db) g v vs. v cc 10 1 10 100 100 1000 in-put voltage, v in (mv[rms]) voltage gain, g v (db) g v vs. v in v cc =8v, v stb =0v, v ol =0v f=1khz, r l =8 , r g =10k g v(ch1) g v(ch2) vcc=8v, v stb =0v, v ol =0v f=1khz, r l =8 , r g =10k 25 26 27 28 29 30 31 32 33 34 35 voltage gain, g v (db) 0.01 0.1 1 10 100 frequency, f (hz) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 output power, p o (w) g v , p o vs. f p o vs. v in 10 1 0.1 output power, p o (w) 0.01 10 100 1000 in-put voltage, v in (mv[rms]) g v(ch1) g v(ch2) p o(ch1) p o(ch1) v cc =8v, v stb =0v, v ol =0v f=1khz, r l =8 , r g =10k v cc =8v, v stb =0v, v ol =0v f=1khz, r l =8 , r g =10k
pa7522 linear integrated circuit unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r107-059.a ? typical characteristics(cont.) 0246 10 81214 supply voltage, v cc (v) output power, p o (w) 0 1 2 3 4 5 6 7 8 p o vs. v cc vcc=8v, v stb =0v, v ol =0v, r l =8\16 , r g =10k f=1khz, thd=10% r l =8 r l =16 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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