unisonic technologies co., 3541 cmos ic www.unisonic.com.tw 1 of 6 copyright ? 2009 unisonic technologies co., qw-r502-035.b class ab stereo headphone driver with mute ? description the utc 3541 is a class ab stereo headphone driver with mute feature. ? features * built-in mute function * no switch on/off pops * short-circuit protection * low power consumption * large output voltage swing * high signal-to-noise ratio dip-8 sop-8 lead-free: 3541l halogen-free:3541g ordering information ordering number normal lead free plating halogen free package packing 3541-d08-t 3541L-D08-T 3541g-d08-t dip-8 tube 3541-s08-r 3541l-s08-r 3541g -s08-r sop-8 tape reel
3541 cmos ic unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r502-035.b ? block diagram + a + b 0db 0db ? pin description pin no. pin name i/o description 1 out 1 o output pin for channel a 2 mute i mute control input, high for normal operation 3 in 1 i input pin for channel a 4 v ss power ground 5 in 2 i input pin for channel b 6 bias i right channel bias input pin 7 out 2 o output pin for channel b 8 v dd power supply input
3541 cmos ic unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r502-035.b ? absolute maximum ratings parameter symbol ratings unit supply voltage v dd 7 v output short-circuit duration (ta=25c, p d =1w) t sc(o) 20 s junction temperature t j 150 c operating temperature t opr -40 ~ +85 c storage temperature t stg -65 ~ +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. ? thermal characteristics parameter symbol ratings unit dip-8 108 junction to ambient (note) sop-8 ja 210 c/w dip-8 45 junction to case sop-8 jc 40 c/w note: ja is measured with the component mounted on a high effe ctive thermal conductivity test board in free air. ? electrical characteristics (v in =0dbv, v cc =5v, ta=25c, f=1khz, r l =32 ? , unless otherwise specified.) parameter symbol test conditions min typ max unit supply voltage v dd 3.0 5.0 6.0 v mute terminal voltage v tm 0.3 0.7 1.6 v quiescent current i q v in = 0v rms 3.5 5 ma mute current i mute 200 a voltage gain g vcl v in =1v rms , f =1khz, r l =32 ? -2 0 2 db differential channel voltage gain g vcl -0.5 0 0.5 db channel separation cs f =1 khz -90 -92.5 db mute attenuation att v in = 1v rms , f =1 khz, mute=l 65 70 db ripple rejection rr f rr =100hz, v rr = -20dbv 50 60 db output noise voltage v no bw = 20~20khz, v in =0v rms -93 -85 dbv total harmonic distortion thd bw<120 khz 0.03 0.1 % rated output power 1 p o1 r l =32 ? 50 55 mw rated output power 2 p o2 thd+n = 0.1%, bw < 120 khz r l =16 ? 105 110 mw
3541 cmos ic unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r502-035.b ? test and application circuit 1 f + a + b 100 f 220 f out1 mute in1 v ss mute 0db bias utc 3541 in2 bias v dd v inb v ina v dd 2 1 3 4 7 8 6 5 0db v mute h : speaker action l : mute on 10 f 100k ? 1 f 220 f out2 1 f
3541 cmos ic unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r502-035.b ? typical characteristics 0 468 8 7 6 4 2 5 3 1 0 2 048 5 4 3 2 1 0 26 10 +4 10 1k 10k -8 +8 -4 100k +0 -12 frequency, f(hz) -10 00.81.21.6 -60 10 -40 0.4 2 -20 -80 mute control voltage, v tm (v) 100 0 -30 -50 -70 -10 -6 +6 +2 -2 v dd = 5v v in = 0 dbv 120 k channel separation, cs (db) -20 10 1k 10k -100 +0 100k -120 frequency, f (hz) 100 -80 -40 -60 mute attenuation, att (db) -20 10 1k 10k -90 +0 100k -100 frequency, f (hz) 100 -80 -40 -60 -10 -30 -50 -70 quiescent current, iq(ma) quiescent current vs. supply voltage r l =32 ? mute: off mute: on r l =32 ? bias dc voltage, v bias (v) supply voltage, v dd (v) supply voltage, v dd (v) bias dc voltage vs. supply voltage v dd =5v v in =0dbv f=1khz r l =32 ? output voltage, v out (dbv) output voltage vs. mu te control voltage voltage gain ,g vc (db) v dd =5v r l =32 ? channel separation vs. frequency v dd =5v v in =0dbv r l =32 ? mute attenuation vs. frequency voltage gain vs. frequency
3541 cmos ic unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r502-035.b ? typical characteristics(cont.) ripple rejection, rr(db) 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.
|
