unisonic technologies co., ltd TDA7297 linear integrated circuit www.unisonic.com.tw 1 of 8 copyright ? 2013 unisonic technologies co., ltd qw-r105-044.d 10+10 w dual bridge amplifier ? description the utc TDA7297 is a dual bridge amplifier, it uses utc advanced technology to provide customers with wide supply voltage, stand-by function, mute function, thermal overload protection and short circuit protection, etc. the utc TDA7297 is suitable for tv and portable radio applications, etc. ? features * st-by and mute functions * otp and short circuit protections * work with a minimum external components * wide supply voltage range (6.5v~18v) hzip-15d ? ordering information ordering number package packing lead free halogen free TDA7297l-j15-d-t TDA7297g-j15-d-t hzip-15d tube note: xx: output voltage, refer to marki ng information. TDA7297l-j15-d-t (1)packing type (2)package type (3)lead free (1) t: tube (2) j15-d: hzip-15d (3) l: lead free, g: halogen free
TDA7297 linear integrated circuit unisonic technologies co., ltd 2 of 8 www.unisonic.com.tw qw-r105-044.d ? pin configuration ? pin description pin no. pin name description 1 out1+ non-inverting output of channel 1 2 out1- inverting output of channel 1 3 v cc supply voltage 4 in1 input of channel 1 5 n.c. not connected 6 mute mute function terminal 7 stand-by stand-by function terminal 8 pw-gnd power ground 9 s-gnd signal ground 10 n.c. not connected 11 n.c. not connected 12 in2 input of channel 2 13 v cc supply voltage 14 out2- inverting output of channel 2 15 out2+ non-inverting output of channel 2
TDA7297 linear integrated circuit unisonic technologies co., ltd 3 of 8 www.unisonic.com.tw qw-r105-044.d ? block diagram
TDA7297 linear integrated circuit unisonic technologies co., ltd 4 of 8 www.unisonic.com.tw qw-r105-044.d ? absolute maximum rating parameter symbol ratings unit supply voltage v s 20 v output peak current (i nternally limited) i o 2 a total power dissipation (t c =70c) p tot 30 w operating temperature t opr 0~70 c junction temperature t j 150 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 and functional device oper ation is not implied. ? thermal data description symbol ratings unit junction to ambient ja 48 c/w junction to case jc 1.8 c/w ? electrical characteristics (v cc =13v, r l =8 ? , f=1khz, t a =25c, unless otherwise specified) parameter symbol test conditions min typ max unit supply range v cc 6.5 18 v total quiescent current i q r l = 50 65 ma output offset voltage v os 120 mv output power p o thd=10% 8.3 10 w total harmonic distortion thd p o =1w 0.1 0.3 % p o =0.1w~2w, f=100hz~15khz 1 % supply voltage rejection svr f=100hz v r =0.5v 40 56 db crosstalk ct 46 60 db mute attenuation a mute 60 80 db thermal threshold t w 150 c closed loop voltage gain g v 31 32 33 db voltage gain matching ? g v 0.5 db input resistance r i 25 30 k ? mute threshold vt mute v o =-30db 2.3 2.9 4.1 v st-by threshold vt st-by 0.8 1.3 1.8 v st-by current v6=gnd i st-by 100 a total output noise voltage e n a curve 150 v f=20hz~20khz 220 500 v
TDA7297 linear integrated circuit unisonic technologies co., ltd 5 of 8 www.unisonic.com.tw qw-r105-044.d ? application suggestion stand-by and mute functions a. microprocessor application fig. 1 microprocessor application
TDA7297 linear integrated circuit unisonic technologies co., ltd 6 of 8 www.unisonic.com.tw qw-r105-044.d ? application suggestion(cost.) fig. 2 microprocessor driving signals
TDA7297 linear integrated circuit unisonic technologies co., ltd 7 of 8 www.unisonic.com.tw qw-r105-044.d ? application suggestion(cost.) b. low cost application 470f 100nf fig. 3 stand-alone low-cost application
TDA7297 linear integrated circuit unisonic technologies co., ltd 8 of 8 www.unisonic.com.tw qw-r105-044.d ? typical characteristics frequency respone level (dbr) frequency, f (hz) 0 1k 100k output power vs. supply voltage supply voltage, v cc (v) 0 power dissipation, p d (w) 0 2 4 6 8 10 12 14 16 18 20 6 7 8 9 10 11 12 13 14 15 quiscent current vs. supply voltage quiscent current, i q (ma) supply voltage, v cc (v) 0 4 12 20 28 36 44 78 19 9 -5 -4 -3 -2 -1 0 1 2 3 4 5 100 10k v cc =13v r l =8 pout=1w 16 17 18 19 r l =8 f = 1khz d=10% d=1% 10 40 32 24 16 8 10 11 13 12 14 15 16 17 18 20 6 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.
|
