unisonic technologies co., ltd PA6204 preliminary cmos ic www.unisonic.com.tw 1 of 6 copyright ? 2012 unisonic technologies co., ltd qw-r502-854.a 1.7- w mono fully differential audio power amplifier ? description the utc PA6204 is a mono fully-differential audio amplifier, capable of delivering 1.7w of c ontinuous average power to an 8- ? btl load with less than 10% distortion from a 5v power supply. the utc PA6204 is ideal for pda/smart phone applications due to features such as -80-db suppl y voltage rejection from 20hz to 2khz, improved rf rectific ation immunity, small 20mm 2 total pcb area, and a fast startup with mini mal pop. the device operates from 2.5v to 5.5v, drawing only 4m a of quiescent supply current. the utc PA6204 is suitable for diverse applications, such as pdas, wireless or cellular handsets, portable devices. ? features * 1.7w into 8 ? from a 5-v supply at thd=10% (typ.) * 2.5v-5.5v operation * low supply current: 4ma typ at 5v * ultra low current shutdown mode * only three external components - improved psrr (-80db) for direct battery operation - fully differential design reduces rf rectification - -63db cmrr eliminates two input coupling capacitors * fast startup with minimal pop sop-8 msop-8 ? ordering information ordering number package packing lead free halogen free PA6204l-sm1-r PA6204g-sm1-r msop-8 tape reel PA6204l-s08-r PA6204g-s08-r sop-8 tape reel PA6204l-s08-t PA6204g-s08-t sop-8 tube note: xx: output voltage, refer to marki ng information.
PA6204 preliminary cmos ic unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r502-854.a ? pin configuration ? pin description pin no. pin name description 1 shutdown shutdown terminal (active low logic) 2 bypass mid-supply voltage, adding a bypass capacitor improves psrr 3 in+ positive di fferential input 4 in- negative differential input 5 v o+ positive btl output 6 v dd power supply 7 gnd high-current ground 8 v o ? negative btl output ? block diagram shutdown c (bypass) (note 1) 40k ? 40k ? + - note 1. c (bypass) is optional. v dd v o+ v o- gnd in+ in- 100k ? bias circuitry
PA6204 preliminary cmos ic unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r502-854.a ? absolute maximum rating (over operating free-air temperature range unless otherwise noted ) parameter symbol ratings unit supply voltage v dd -0.3~6 v input voltage v i -0.3~v dd +0.3 v power dissipation(t a =25 c) p d 0.5 w junction temperature t j -40~150 c operating free-air temperature t a -40~85 c storage temperature t stg -65~150 c note: 1. 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. 2. derating factor based on high-k board layout. ? recommended operating conditions package symbol min typ max unit supply voltage v dd 2.5 5.5 v high-level input voltage shutdown v ih 1.55 v low-level input voltage shutdown v il 0.5 v operating free-air temperature t a -40 85 c ? electrical characteristics (t a =25c, unless otherwise specified) parameter symbol test conditions min typ max unit output offset voltage (measured differentially) v os v i =0v differential, gain=1v/v, v dd =5.5v -9 0.3 9 mv power supply rejection radio psrr v dd =2.5v~5.5v -85 -60 db common mode input range v ic v dd =2.5v~5.5v 0.5 v dd -0.8 v common mode rejection ratio cmrr v dd =5.5v, v ic =0.5v~4.7v -63 -40 db v dd =2.5v, v ic =0.5v~1.7v -63 -40 low-output swing r l =8 ? , gain=1v/v v in+ =0v, v in- =v dd v dd =5.5v 0.45 v v dd =3.6v 0.37 v dd =2.5v 0.26 0.4 high-output swing r l =8 ? , gain=1v/v v in+ =v dd , v in- =0v v dd =5.5v 4.95 v v dd =3.6v 3.18 v dd =2.5v 2 2.13 high-level input current, shutdown |i ih | v dd =5.5v, v i =5.8v 58 100 a low-level input current, shutdown |i il | v dd =5.5v, v i =-0.3v 3 100 a quiescent current i q v dd =2.5v~5.5v, no load 4 6 ma supply current i (sd) v (shutdown) 0.5v, v dd =2.5v~5.5v, r l =8 ? 0.01 1 a gain r l =8 ? i r 38k ? i r 40k ? i r 42k ? v/v resistance from shutdown to gnd 100 k ?
PA6204 preliminary cmos ic unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r502-854.a ? operating characteristics (t a =25c, gain=1v/v, unless otherwise specified) parameter symbol test conditions min typ max unit output power p o thd+n=1%, f=1khz, r l =8 ? v dd =5v 1.36 w v dd =3.6v 0.72 v dd =2.5v 0.33 thd+n=10%, f=1khz, r l =8 ? v dd =5v 1.7 w v dd =3.6v 0.85 v dd =2.5v 0.4 total harmonic distortion plus noise thd+n v dd =5v, p o =1w, r l =8 ? , f=1khz 0.02 % v dd =3.6v, p o =0.5w, r l =8 ? , f=1khz 0.02 v dd =2.5v, p o =200mw, r l =8 ? , f=1khz 0.03 supply ripple rejection ratio k svr v dd =3.6v, inputs ac-grounded with c i =2f, v ( ripple ) =200mv pp f=217hz -80 db f=20hz~20khz -70 signal-to-noise radio snr v dd =5v, p o =1w, r l =8 ? 105 db output voltage noise v n v dd =3.6v, f=20hz~20khz, inputs ac-grounded with c i =2f no weighting 15 v rms a weighting 12 common mode rejection radio cmrr v dd =3.6v, v ic =1v pp f=217hz -65 db feedback resistance r f 38 40 44 k ? start-up time from shutdown v dd =3.6v, c bypass =0.1f 27 ms
PA6204 preliminary cmos ic unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r502-854.a ? typical application circuit table 1. typical component values component value unit ri 40 k ? c ( bypass ) (note 1) 0.22 f c s 1 f c i 0.22 f note: 1. c ( bypass ) is optional shutdown c (bypass) (note 1) note 1. c (bypass) is optional. r i r i 4 40k 100k in- in+ 3 2 1 v dd v o+ v o- gnd bias circuitry 40k + - 6 5 8 7 c s to battery in from dac - + figure 1. typical differential input application schematic shutdown c (bypass) (note 1) note 1. c (bypass) is optional. r i r i 4 40k 100k in- in+ 3 2 1 v dd v o+ v o- gnd bias circuitry 40k + - 6 5 8 7 c s to battery c i c i - + figure 2. differential input application schematic optimized with input capacitors
PA6204 preliminary cmos ic unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r502-854.a ? typical application circuit(cont.) shutdown c (bypass) (note 1) note 1. c (bypass) is optional. r i r i 4 40k 100k in- in+ 3 2 1 v dd v o+ v o- gnd bias circuitry 40k + - 6 5 8 7 c s to battery c i c i in figure 3. single-ended input application schematic 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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