uni soni c technologi es co., ltd TDA7052A linear integrated circuit www.unisonic.com.tw 1 of 5 copyright ? 2017 unisonic technologies co., ltd qw-r107-075.b 1 w bt l m on o au di o am pli fi er wi t h dc v olu m e con t rol ? descri pt i on the utc TDA7052A is mono btl output amplifier with dc volume control. it is designed for use in tv and monitors, additionally it is suitable for portable recorders and radios. in the ic, a missing current limi ter (mcl) is built-in. this function is activated when the difference of current between the out+ and out- exceed 100ma (typical 300ma). this level of 100ma suit for headphone applications (single-ended). ? feat u res * low power consumption * dc volume control * mute mode * no switch-on and off clicks * short-circuit proof * good overall stability * low hf radiation * few external components * thermal protection * esd protected on all pins * missing current limiter (mcl) dip-8 sop-8 ? orderi n g i n form at i on ordering number lead free halogen free package packing TDA7052Al-d08-t TDA7052Ag-d08-t dip-8 tube TDA7052Al-s08-t TDA7052Ag-s08-t sop-8 tube TDA7052Al-s08-r TDA7052Ag- s08-r sop-8 tape reel ? m ark i n g
TDA7052A linear integrated circuit u n i son i c t ech n ologi es co., lt d 2 of 5 www.unisonic.com.tw qw-r107-075.b ? pi n con fi gu rat i on ? pi n descri pt i on pin no. pin name description 1 v p power supply 2 in+ signal input terminal 3 gnd1 signal ground 4 vc dc volume control terminal 5 out+ non-inverted output terminal 6 gnd2 power ground 7 nc not connected 8 out- inverted output terminal ? block di agram i + i i - i + + - v ref stabilizer 4 2 7 1 5 8 6 3 n.c. signal input dc volume control signal ground power ground inverted output non-inverted output v p thermal protection/mcl
TDA7052A linear integrated circuit u n i son i c t ech n ologi es co., lt d 3 of 5 www.unisonic.com.tw qw-r107-075.b ? absolu t e m ax i m u m rat i n g parameter symbol ratings unit supply voltage range v p 18 v input voltage pin 2 v 2 8 v input voltage pin 4 v 4 8 v repetitive peak output current i orm 1.25 a non-repetitive peak output current i osm 1.5 a short-circuit time t sc 1 hr dip-8 1.25 w total power dissipation (t a 25%) sop-8 p d 0.8 w operating ambient te mperature range t a -40 ~ +85 c junction temperature t j +150 c storage temperature range t stg -55 ~ +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. ? elect ri cal ch aract eri st i cs v p =6v, t amb =25c, f=1khz; r l =8 ? , unless otherwise speci ? ed. parameter symbol test conditions min typ max unit power supply voltage range v p 4.5 18 v total quiescent current i p v p =6v, r l = , note 1 7 12 ma dc volume control gain control range 75 80 db control current i 4 v 4 =0.4v 70 80 a characteristics in mute position output voltage in mute position v o v 4 0.3v, v i =600mv 30 v characteristics in minimum gain, v 4 =0.5v voltage gain g v -44 db noise output voltage (rms value) v no(rms) note 2 20 30 v characteristics in maximum gain, v 4 =1.4v output power p o thd=10% 1.0 1.1 w total harmonic distortion thd p o =0.5w 0.3 1 % voltage gain g v 34.5 35.5 36.5 db input signal handling v i v 4 =0.8v, thd<1% 0.5 0.65 v noise output voltage (rms value) v no(rms) f=500khz, note 3 210 v bandwidth b ? 1db 0.02~300 khz supply voltage ripple rejection svrr note 4 38 46 db dc output offset voltage |v off | 0 150 mv input impedance (pin 2) z i 15 20 25 k ? notes: 1. with a load connected to the outputs the quiescent current will increase, the maximum value of this increase being equal to the dc out put offset voltage dividend by r l . 2. the noise output voltage (rms value) is measured with r s =5k ? unweighted. 3. the noise output voltage (rms va lue) at f=500khz is measured with r s =0 ? and bandwidth=5khz. 4. the ripple rejection is measured with r s =0 ? and f=100hz~10khz. the ripple voltage of 200mv, (rms value) is applied to the positive supply rail.
TDA7052A linear integrated circuit u n i son i c t ech n ologi es co., lt d 4 of 5 www.unisonic.com.tw qw-r107-075.b ? t y pi cal appli cat i on ci rcu i t i + i i - i + + - v ref stabilizer thermal protection/mcl 4 2 7 1 58 6 3 n.c. + - note 1 100nf 220 f + v p =6v r l =8 ground dc volume control 5k r s signal input 0.47 f note 1. this capacitor can be omitted if the 220 f electrolytic capacitor is connected close to pin 1. 4 1m 1 f + volume control application with potent iometer as volume con trol; maximum gain=30db + inverted output non-inverted output power ground signal ground v p
TDA7052A linear integrated circuit u n i son i c t ech n ologi es co., lt d 5 of 5 www.unisonic.com.tw qw-r107-075.b ? t y pi cal ch aract eri st i cs utc assumes no responsibility for equipment failures that result from u sing products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition rang es, 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 s ystems where malfunction of these products can be reasonably expected to result in personal injury. r eproduction in whole or in part is prohibited without the prior written consent of the copyright owner. t he information presented in this document does not form part of any quotation or contract, is believe d to be accurate and reliable and may be changed without notice.
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