utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 1 qw-r107-028,a low frequency power amplifier description the utc ta8229 is an audio power ic with built-in two channels developed for portable radio cassette tape recorder with power on/off switch. because of the parts reduction and sip (single inline package), space merit is remarkable. thermal shut down protection circuit is buit in. features * high power : p out (1) = 2.5w (typ.) (v cc = 9v, r l = 4 ? , f = 1khz, thd = 10%) : p out (2) = 4.6w (typ.) (v cc = 12v, r l = 4 ? , f = 1khz, thd = 10%) * low popping noise at power on * small quiescent current : i ccq = 21ma (typ.) (v cc = 15v, v in = 0) * soft clip * built-in thermal shut down protection circuit * best for supply voltage 9v, 12v * operation supply voltage range : v cc (opr) = 6 ~ 15v (ta = 25 ) hsip-15 hsip-14 pin description pin no. hsip-14 hsip-15 pin name 1 nc 1 2 b.s. 2 2 3 out 2 3 4 vcc 1 4 5 out 1 5 6 b.s.1 6 7 power-gnd 7 8 vcc 2 8 9 ripple 9 10 nf1 10 11 in 1 11 12 in 2 12 13 nf 2 13 14 pre-gnd 1 14 15 pre-gnd 2
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 2 qw-r107-028,a block diagram hsip-15 + - 14 15 7 4 8 1 v cc2 b.s.1 in1 nf1 45 ? 30k ? out1 ch-1 10 5 ripple in2 nf2 45 ? 13 pre-gnd1. 9 11 + - 12 bias circuit thermal shut down protection circuit ch-2 out2 30k ? pre-gnd2. pin : nc 2 6 b.s.2 3 power-gnd v cc1 absolute maximum ratings (ta = 25 ) parameter symbol ratings unit supply voltage v cc 20 v output current (peak/ch) i o (peak) 2.5 a power dissipation p d (note) 15.0 w operating temperature t opr -20 ~ 75 storage temperature t stg -55 ~ 150 note: derated above ta = 25 in the proportion of 120mw/ .
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 3 qw-r107-028,a electrical characteristics (v cc =9v , r l =4 ? , r g =600 ? , f=1khz, t a =25 , r f =120 ? , unless otherwise specified.) parameter symbol test conditions min typ max unit quiescent current i ccq v in = 0 21 45 ma p out (1) thd = 10% 2.0 2.5 output power p out (2) thd = 10%, v cc = 12v 4.6 w total harmonic distortion thd p out = 0.4w/ch 0.2 1.0 % g v (1) r f = 120 ? , v out = 0.775v rms (0dbm) 43 45 47 voltage gain g v (2) r f = 0, v out = 0.775v rms (0dbm) 56.5 db input resistance r in 30 k ? output noise voltage v no r g = 10k ? , bw = 20hz ~ 20khz 0.3 1.0 mv rms ripple rejection ratio r.r. r g = 600 ? , f ripple = 100khz -52 db cross talk c.t. r g = 600 ? , amp1 2 v out = 0.775v rms (0dbm) -50 db input offset voltage v 11 , v 12 30 60 mv stand-by current i off sw1 off 1 a application information and application method 1. adjustment of voltage gain the voltage gain g v is obtained as follows by r1, r2 and r f in fig.1. r f + r1 + r2 g v = 20 log r f + r1 when r f = 0 ? , g v = 56.5db (typ.) when r f = 120 ? , g v = 45db (typ.) by increasing r f , reduction of g v is possible. however, since the feedback increase is liable to produce oscillation, it is recommended to use this at 40db or over. + - 45 ? 30k ? amp + - c nf r f 47 f r1 output r2 input 11/12 3/5 fig.1 10/13 2. thermal shut-down circuit the thermal shut-down circuit is built in for the purpose of preventing the destruction of ic due to the abnormal temperature rise when the heat radiation is insufficient. the operation temperature is set at radiation fin temperature 175 (typ.). at this temperature or over the bias is interrupted to prevent the destruction of ic.
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 4 qw-r107-028,a 3. input stage the input circuit of this ic is as shown in fig.2. pnp t r : q1 is provided in the input circuit so as to make its usage possible without the input coupling capacitor. however, at pin 11 and 12 , max 60 mv offset voltage is produced. application after checking volume slide noise is recommended. for cutting the volume slide noise, insert the input capacitor: c in in series to interrupt the dc component. 3/ 5 input 30k ? 30k ? output to driver 45 ? to bias nf r f fig. 2 + - 47 f q3 q2 q1 gnd c in + - 11/12 14/15 10/13 4. oscillation preventive measures for oscillation preventive capacitor c6 and c7 between the output terminal and gnd, it is recommended to use polyester film capacitor having good characte ristics for temperature and for high frequency. since the characteristics of the capacitor is liable to be influenced by the temperature, use this capacitor after the temperature test to check the oscillation allowance. in addition, as the position of the electrolytic capacitor has a remarkable influence on the oscillation, connect c10 to v cc at the nearest possible position from power gnd. at using this application with the voltage gin reduced, oscillation is liable to be produced. apply the capacitor after checking enough for its capacity, type and mounting position. (*) as the oscillation allowance varies according to the printed pattern layout, the standard printed board of toshiba is recommended to be referred to design it. 5. power on/off switch there is power on/off switch at pin. however, output power is changed by pin supply voltage when pin supply voltage is not same pin supply voltage, after referring to attached date, select pin supply voltage. 6. input voltage when the excessive signal is input, turning-up is produced in the clip waveform. the turning-up point is v in = 300mv rms (typ.): v cc = 9v, r l = 4 ? , f = 1khz: enough care must be taken for this phenomenon.
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 5 qw-r107-028,a test circuit + - 14 15 7 4 8 1 sw1 v cc2 b.s.1 c11 (*2) 100 f in1 nf1 45 ? 30k ? out1 + - + - 1000 f c10 v cc1 100 f c4 c8 c6 ch-1 + - + - 1000 f 0.15 f 10 5 + - c1 120 ? in-1 r f1 47 f ripple + - c3 47 f (*1)c in in2 nf2 45 ? + - c2 47 f 120 ? pre-gnd1. 9 + - (*1)c in 11 + - in-2 + - 12 bias circuit thermal shut down protection circuit ch-2 out2 30k ? pre-gnd2. pin : nc 2 c9 + - 1000 f 0.15 f c7 r l r l out-1 out-2 6 100 f c5 + - b.s.2 3 power-gnd 13 (*1) this ic can be used without coupling capacitor (c in ). if volume slide noise occurred by input offset voltage is undesirable, it needs to use the capacitor (c in ). (*2) the condenser between the pin and the gnd (c11) is for reducing pop noise when the power on/off switch (sw1) is set to on/off.
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 6 qw-r107-028,a typical application circuits 0 4 12 20 20 0 quiescent current, i ccq (ma) supply voltage, v cc ( v ) 8 16 i ccq , v 3 , v 5 - v cc r l =4 ? v in = 0 ta = 25 i ccq v3, v5 40 60 80 2 4 6 8 10 12 output voltage, v 3 , v 5 (v) 30 100 3k 30k 20 0 voltage gain, c v (db) frequency, f ( hz ) 300 10k g v - f 40 60 80 v cc =9v r l =4 ? r nf =120 ? ta = 25 100k 1k 10 30 50 70 0.04 0.1 1 4 2 0.4 total harmonic distortion, thd (%) output power, pout ( w ) 0.2 2 thd - pout 20 0.4 1 4 10 40 v cc =9v r l =4 ? r nf =120 ? ta = 25 f = 10khz 100hz 1khz 0.2 0.1 0.04 0.04 0.1 1 4 2 0.4 total harmonic distortion, thd (%) output power, pout ( w ) 0.2 2 thd - pout 20 0.4 1 4 10 40 v cc =12v r l =4 ? r nf =120 ? ta = 25 f = 10khz 100hz 1khz 0.2 0.1 0.04
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 7 qw-r107-028,a 0.04 0.1 1 4 2 0.4 total harmonic distortion, thd (%) output power, pout ( w ) 0.2 2 thd - pout 20 0.4 1 4 10 40 v cc =15v r l =4 ? r nf =120 ? ta = 25 f = 10khz 100hz 1khz 0.2 0.1 0.04 0.04 0.1 1 4 2 0.4 total harmonic distortion, thd (%) output power, pout ( w ) 0.2 2 thd - pout 20 0.4 1 4 10 40 f=1khz r l =4 ? r nf =120 ? ta = 25 v cc = 6v 12v 9v 0.2 0.1 0.04 15v 30 100 3k 30k -60 -80 ripple rejection ration, r.r. (db) signal source resistance, rg ( ) 300 10k r.r. - rg -40 -20 100k 1k -70 -50 -30 -10 30 100 3k 30k -60 -80 ripple rejection ratio, r.r. (db) frequency, f ( hz ) 300 10k r.r. - f -40 -20 v cc =9v r l =4 ? r nf =120 ? r g = 600 ? v ripple = 0.775v rms (0dbm) ta = 25 100k 1k -70 -50 -30 -10 v cc =9v r l =4 ? r nf =120 ? f = 1khz v ripple = 0.775v rms (0dbm) ta = 25 30 100 3k 30k -60 -80 cross talk, c.t. (db) frequency, f ( hz ) 300 10k c.t. - f -40 -20 v cc =9v r l =4 ? r nf =120 ? rg = 600 ? v ripple = 0.775vrms (0dbm) ta = 25 100k 1k -70 -50 -30 -10 30 100 3k 30k -60 -80 cross talk, c.t. (db) 300 10k c.t. - rg -40 -20 100k 1k -70 -50 -30 -10 0 v cc =9v r l =4 ? f = 1khz r nf =120 ? ta = 25 signal source resistance , r g (
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 8 qw-r107-028,a 0 4 812 2 0 quiescent current, i ccq2 (ma) supply voltage, v cc2 ( v ) 6 10 i ccq2 , v 2 , v 10 - v cc2 6 8 12 output voltage v 2 , v 10 (v) 30 100 3k 30k 0.4 0 output noise voltage, vno (mvrms) 300 10k vno - rg 0.8 1.2 v cc =9v r l =4 ? r nf =120 ? bw = 20~20khz ta = 25 100k 1k 0.2 0.5 1.0 1.4 signal source resistance , r g ( ) 1.6 v cc1 = 12v v in = 0 ta = 25 v 2 , v 10 14 2 4 i ccq 10 -40 0 40 80 0.1 0 total harmonic distortion, thd (%) ambient temperature, ta () 20 60 thd - ta 0.3 0.4 0.01 0.03 1 3 0.5 0.1 total harmonic distortion, thd (%) 0.1 thd - pout 5 10 0.3 0.3 1 3 10 output power, pout (w) 30 100 -20 0.2 0.5 v cc2 = 5v 6 7 8 9 v cc1 = 9v r l = 4 ? f = 1khz r nf =120 ? ta = 25 v cc =9v r l =4 ? pout = 0.4w f = 1khz 0 2 46 1 0 power dissipation, p d (w) output power, pout (w) 3 5 p d - pout 3 4 7 1 2 5 v cc =9v r l =4 ? pout = 0.4w f = 1khz -40 0 40 80 10 0 quiescent current, i ccq (ma) ambient temperature, ta ( ) 20 60 i ccq , v 3 , v 5 - ta 30 40 -20 20 50 v cc =9v r l =4 ? vin = 0 v 3 , v 5 i ccq 4 2 8 10 6 output voltage, v 3 , v 5 (v) v cc =12v 9
utc ta8229 linear integrated circuit utc unisonic technologies co., ltd. 9 qw-r107-028,a 0 50 150 10 0 allowable power dissipation, p d (w) ambient temperature, ta ( ) 75 100 p d - ta 20 25 infinite heat sink 15.0w 5.0 /w no heat sink 2.27w 55 /w 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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