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may 2011 doc id 13123 rev 4 1/29 29 ts2007 3 w filter-free class d audio power amplifer with 6-12 db fixed gain select features operating range from v cc = 2.4 v to 5.5 v standby mode active low output power: 1.4 w at 5 v or 0.45 w at 3.0 v into 8 with 1% thd+n max. output power: 2.3 w at 5 v or 0.75 w at 3.0 v into 4 with 1% thd+n max. fixed gain select: 6 db or 12 db low current consumption efficiency: 88% typ. signal-to-noise ratio: 94 db typ. psrr: 63 db typ at 217 hz with 6 db gain pwm base frequency: 280 khz low pop & click noise thermal shutdown protection dfn8 3 x 3 mm package applications cellular phones pdas notebook pcs description the ts2007 is a class d power audio amplifier. able to drive up to 1.4 w into an 8 load at 5 v, it achieves outstanding efficiency compared to typical class ab audio power amplifiers. this device allows switching between two different gains: 6 or 12db via a logic signal on the gs pin. a pop & click reduction circuitry provides low on/off switching noise while allowing the device to start within 5 ms. a standby function (active low) allows lowering the current consumption down to 10 na typ. the ts2007 is available in dfn8 3 x 3 mm lead- free packages. ts2007iqt - dfn8 ts2007iqt - dfn8 1 2 3 4 8 7 6 5 1 2 3 4 8 7 6 5 www.st.com
contents ts2007 2/29 doc id 13123 rev 4 contents 1 absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3 2 typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 electrical characteristic tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.1 differential configuration principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2 gain settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.3 common-mode feedback loop limitations . . . . . . . . . . . . . . . . . . . . . . . . 22 4.4 low frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.5 decoupling of the circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.6 wake-up time (t wu ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.7 shutdown time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.8 consumption in shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.9 single-ended input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.10 output filter considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
ts2007 absolute maximum rati ngs and operating conditions doc id 13123 rev 4 3/29 1 absolute maximum ratings and operating conditions table 1. absolute maximum ratings symbol parameter value unit v cc supply voltage (1) 1. all voltage values are measur ed with respect to the ground pin. 6v v i input voltage (2) 2. the magnitude of the input signal must never exceed v cc + 0.3 v / gnd - 0.3 v. gnd to v cc v t oper operating free air temperature range -40 to + 85 c t stg storage temperature -65 to +150 c t j maximum junction temperature 150 c r thja thermal resistance junction to ambient (3) 3. the device is protected in case of over te mperature by a thermal shutdown active @ 150 c. 200 c/w pd power dissipation internally limited (4) 4. exceeding the power derating curves during a long period will caus e abnormal operation. esd hbm: human body model 2 kv esd mm: machine model 200 v latch-up latch-up immunity class a lead temperature (soldering, 10 sec) 260 c r l minimum load resistor 3.2 table 2. operating conditions symbol parameter value unit v cc supply voltage 2.4 to 5.5 v v i input voltage range gnd to v cc v v ic input common mode voltage (1) 1. i v oo i 35 mv max with both differential gains. gnd+0.15 v to v cc -0.7 v v v stby standby voltage input (2) device on device off 2. without any signal on v stby , the device is in standby (internal 300 k pull down resistor). 1.4 v stby v cc gnd v stby 0.4 (3) 3. minimum current consumption is obtained when v stby = gnd. v gs gain select input: gain =12db gain = 6db gnd v gs 0.4 1.4 v gs v cc v r l load resistor 4 r thja thermal resistance junction to ambient (4) 4. when mounted on 4-layer pcb. 40 c/w
typical application ts2007 4/29 doc id 13123 rev 4 2 typical application figure 1. typical application schematics table 3. external component descriptions components functional description c s supply capacitor that provides power supply filtering. c in input coupling capacitors (optio nal) that block the dc vo ltage at the amplifier input terminal. the capacitors also form a high pass filter with z in (f cl = 1 / (2 x pi x z in x c in )). vcc cin cin in- speaker cs 1uf ts2007 input capacitors are optional in+ vcc vcc gain select + - standby control 3 4 2 1 5 8 6 7 pwm h bridge oscillator in- in+ gs vcc out+ out- standby gnd differential input vcc cin cin in- cs 1uf ts2007 input capacitors are optional in+ vcc vcc gain select + - standby control 3 4 2 1 5 8 6 7 pwm h bridge oscillator in- in+ gs vcc out+ out- standby gnd differential input 15 h 2 f 2 f 15 h 30 h 1 f 1 f 30 h load 4 lc output filter 8 lc output filter
ts2007 typical application doc id 13123 rev 4 5/29 table 4. pin descriptions pin number pin name pin description 1 stby standby pin ( active low ) 2 gs gain select input 3 in+ positive differential input 4 in- negative differential input 5 out- negative differential output 6 vcc power supply 7 gnd ground 8 out+ positive differential output
electrical characteristics ts2007 6/29 doc id 13123 rev 4 3 electrical characteristics 3.1 electrical characteristic tables table 5. v cc = +5 v, gnd = 0 v, v ic =2.5 v, t amb = 25 c (unless otherwise specified) symbol parameter min. typ. max. unit i cc supply current no input signal, no load 2.3 3.3 ma i cc-stby standby current (1) no input signal, v stby = gnd 10 1000 na v oo output offset voltage floating inputs, r l = 8 25 mv p o output power thd = 1% max, f = 1 khz, r l = 4 thd = 1% max, f = 1 khz, r l = 8 thd = 10% max, f = 1 khz, r l = 4 thd = 10% max, f = 1 khz, r l = 8 2.3 1.4 2.8 1.7 w thd + n total harmonic distortion + noise p o = 1w rms , g = 6 db, f =1 khz, r l = 8 0.4 % efficiency efficiency p o = 2.1 w rms , r l = 4 (with lc output filter) p o = 1.3 w rms , r l = 8 (with lc output filter) 84 90 % psrr power supply rejection ratio with inputs grounded, c in =1f (2) f = 217 hz, r l = 8 , gain=6 db , v ripple = 200 mv pp f = 217 hz, r l = 8 , gain=12 db , v ripple = 200 mv pp 63 60 db cmrr common mode rejection ratio 20 hz < f < 20 khz 60 db gain gain value g s =0 v g s = v cc 11.5 5.5 12 6 12.5 6.5 db z in single input impedance (3) 68 75 82 k f pwm pulse width modulator base frequency 190 280 370 khz snr signal-to-noise ratio (a-weighting) po=1.5 w, r l =4 (with lc output filter) 94 db t wu wake-up time 5 10 ms
ts2007 electrical characteristics doc id 13123 rev 4 7/29 t stby standby time 5 ms v n output voltage noise f = 20 hz to 20 khz, r l =4 unweighted (filterless, g=6 db) a-weighted (filterless, g=6 db) unweighted (with lc output filter, g=6 db) a-weighted (with lc ou tput filter, g=6 db) unweighted (filterless, g=12 db) a-weighted (filterless, g=12 db) unweighted (with lc out put filter, g=12 db) a-weighted (with lc output filter, g=12 db) 74 50 69 49 94 65 86 64 v rms 1. standby mode is active when v stby is tied to gnd. 2. dynamic measurements - 20*log(rms(v out )/rms(v ripple )). v ripple is the superimposed sinus signal to v cc @ f = 217hz. 3. independent of gain configuration (6 or 12 db) and between in+ or in- and gnd. table 5. v cc = +5 v, gnd = 0 v, v ic =2.5 v, t amb = 25 c (unless otherwise specified) (continued) symbol parameter min. typ. max. unit
electrical characteristics ts2007 8/29 doc id 13123 rev 4 table 6. v cc = +4.2 v, gnd = 0 v, v ic =2.1 v, t amb = 25 c (unless otherwise specified) (1) symbol parameter min. typ. max. unit i cc supply current no input signal, no load 2.1 3 ma i cc-stby standby current (2) no input signal, v stby = gnd 10 1000 na v oo output offset voltage floating inputs, r l = 8 25 mv p o output power thd = 1% max, f = 1 khz, r l = 4 thd = 1% max, f = 1 khz, r l = 8 thd = 10% max, f = 1 khz, r l = 4 thd = 10% max, f = 1 khz, r l = 8 1.6 0.95 1.95 1.1 w thd + n total harmonic distortion + noise p o = 800 mw rms , g = 6 db, f =1 khz, r l = 8 0.45 % efficiency efficiency p o = 1.5 w rms , r l = 4 (with lc output filter) p o = 0.95 w rms , r l = 8 (with lc output filter) 85 90 % psrr power supply rejection ratio with inputs grounded, c in = 1 f (3) f = 217 hz, r l = 8 , gain = 6 db , v ripple = 200 mv pp f = 217 hz, r l = 8 , gain = 12 db , v ripple = 200 mv pp 63 60 db cmrr common mode rejection ratio 20 hz < f < 20 khz 60 db gain gain value g s = 0 v g s = v cc 11.5 5.5 12 6 12.5 6.5 db z in single input impedance (4) 68 75 82 k f pwm pulse width modulator base frequency 190 280 370 khz snr signal-to-noise ratio (a-weighting) po=1.2 w, r l =4 (with lc output filter) 93 db t wu wake-up time 5 10 ms t stby standby time 5 ms v n output voltage noise f = 20 hz to 20 khz, r l =4 unweighted (filterless, g=6 db) a-weighted (filterless, g=6 db) unweighted (with lc output filter, g=6 db) a-weighted (with lc out put filter, g=6 db) unweighted (filterless, g=12 db) a-weighted (filterless, g=12 db) unweighted (with lc output filter, g=12 db) a-weighted (with lc out put filter, g=12 db) 72 50 68 49 93 65 85 64 v rms 1. all electrical values ar e guaranteed with correlation measurements at 2.4 v and 5 v. 2. standby mode is active when v stby is tied to gnd. 3. dynamic measurements - 20*log(rms(v out )/rms(v ripple )). v ripple is the superimposed sinus signal to v cc @ f = 217 hz. 4. independent of gain configuration (6 or 12 db) and between in+ or in- and gnd.
ts2007 electrical characteristics doc id 13123 rev 4 9/29 table 7. v cc = +3.6 v, gnd = 0 v, v ic =1.8 v, t amb = 25 c (unless otherwise specified) (1) symbol parameter min. typ. max. unit i cc supply current no input signal, no load 22.8ma i cc-stby standby current (2) no input signal, v stby = gnd 10 1000 na v oo output offset voltage floating inputs, r l = 8 25 mv p o output power thd+n = 1% max, f = 1 khz, r l = 4 thd+n = 1% max, f = 1 khz, r l = 8 thd = 10% max, f = 1 khz, r l = 4 thd = 10% max, f = 1 khz, r l = 8 1.1 0.65 1.4 0.85 w thd + n total harmonic distortion + noise p o = 500 mw rms , g = 6 db, f = 1 khz, r l = 8 0.3 % efficiency efficiency p o = 1.1 w rms , r l = 4 (with lc output filter) p o = 0.65 w rms , r l = 8 (with lc output filter) 84 90 % psrr power supply rejection ratio with inputs grounded, c in =1 f (3) f = 217 hz, r l = 8 , gain = 6 db , v ripple = 200 mv pp f = 217 hz, r l = 8 , gain = 12 db , v ripple = 200 mv pp 63 60 db cmrr common mode rejection ratio 20 hz < f < 20 khz 60 db gain gain value g s = 0 v g s = v cc 11.5 5.5 12 6 12.5 6.5 db z in single input impedance (4) 68 75 82 k f pwm pulse width modulator base frequency 190 280 370 khz snr signal-to-noise ratio (a-weighting) po = 0.9 w, r l = 4 (with lc output filter) 92 db t wu wake-up time 5 10 ms t stby standby time 5 ms v n output voltage noise f = 20 hz to 20 khz, r l =4 unweighted (filterless, g=6 db) a-weighted (filterless, g=6 db) unweighted (with lc output filter, g=6 db) a-weighted (with lc ou tput filter, g=6 db) unweighted (filterless, g=12 db) a-weighted (filterless, g=12 db) unweighted (with lc out put filter, g=12 db) a-weighted (with lc output filter, g=12 db) 72 50 68 49 93 65 85 64 v rms 1. all electrical values ar e guaranteed with correlation measurements at 2.4 v and 5 v. 2. standby mode is active when v stby is tied to gnd. 3. dynamic measurements - 20*log(rms(v out )/rms(v ripple )). v ripple is the superimposed sinus signal to v cc @ f = 217 hz. 4. independent of gain configuration (6 or 12 db) and between in+ or in- and gnd.
electrical characteristics ts2007 10/29 doc id 13123 rev 4 table 8. v cc = +3.0 v, gnd = 0 v, v ic =1.5 v, t amb = 25 c (unless otherwise specified) (1) symbol parameter min. typ. max. unit i cc supply current no input signal, no load 1.9 2.7 ma i cc-stby standby current (2) no input signal, v stby = gnd 10 1000 na v oo output offset voltage floating inputs, r l = 8 25 mv p o output power thd+n = 1% max, f = 1 khz, r l = 4 thd+n = 1% max, f = 1 khz, r l = 8 thd = 10% max, f = 1 khz, r l = 4 thd = 10% max, f = 1 khz, r l = 8 0.75 0.45 1 0.6 w thd + n total harmonic distortion + noise p o = 400 mw rms , g = 6 db, f = 1 khz, r l = 8 0.5 % efficiency efficiency p o = 0.75 w rms , r l = 4 (with lc output filter) p o = 0.45 w rms , r l = 8 (with lc output filter) 83 90 % psrr power supply rejection ratio with inputs grounded, c in = 1 f (3) f = 217 hz, r l = 8 , gain=6 db , v ripple = 200 mv pp f = 217 hz, r l = 8 , gain=12 db , v ripple = 200 mv pp 63 60 db cmrr common mode rejection ratio 20 hz < f < 20 khz 60 db gain gain value g s = 0 v g s = v cc 11.5 5.5 12 6 12.5 6.5 db z in single input impedance (4) 68 75 82 k f pwm pulse width modulator base frequency 190 280 370 khz snr signal-to-noise ratio (a-weighting) po = 0.6 w, r l = 4 (with lc output filter) 90 db t wu wake-up time 5 10 ms t stby standby time 5 ms v n output voltage noise f = 20 hz to 20 khz, r l =4 unweighted (filterless, g=6 db) a-weighted (filterless, g=6 db) unweighted (with lc output filter, g=6 db) a-weighted (with lc out put filter, g=6 db) unweighted (filterless, g=12 db) a-weighted (filterless, g=12 db) unweighted (with lc output filter, g=12 db) a-weighted (with lc out put filter, g=12 db) 71 50 67 49 92 65 85 64 v rms 1. all electrical values ar e guaranteed with correlation measurements at 2.4 v and 5 v. 2. standby mode is active when v stby is tied to gnd. 3. dynamic measurements - 20*log(rms(v out )/rms(v ripple )). v ripple is the superimposed sinus signal to v cc @ f = 217 hz. 4. independent of gain configuration (6 or 12 db) and between in+ or in- and gnd.
ts2007 electrical characteristics doc id 13123 rev 4 11/29 table 9. v cc = +2.4 v, gnd = 0 v, v ic =1.2 v, t amb = 25 c (unless otherwise specified) symbol parameter min. typ. max. unit i cc supply current no input signal, no load 1.7 2.4 ma i cc-stby standby current (1) no input signal, v stby = gnd 10 1000 na v oo output offset voltage floating inputs, r l = 8 25 mv p o output power thd+n = 1% max, f = 1 khz, r l = 4 thd+n = 1% max, f = 1 khz, r l = 8 thd = 10% max, f = 1 khz, r l = 4 thd = 10% max, f = 1 khz, r l = 8 0.48 0.3 0.6 0.36 w thd + n total harmonic distortion + noise p o = 200 mw rms , g = 6 db, f = 1 khz, r l = 8 0.1 % efficiency efficiency p o = 0.38 w rms , r l = 4 (with lc output filter) p o = 0.25 w rms , r l = 8 (with lc output filter) 82 90 % psrr power supply rejection ratio with inputs grounded, c in = 1 f (2) f = 217 hz, r l = 8 , gain=6 db , v ripple = 200 mv pp f = 217 hz, r l = 8 , gain=12 db , v ripple = 200 mv pp 63 60 db cmrr common mode rejection ratio 20 hz < f < 20 khz 60 db gain gain value g s = 0 v g s = v cc 11.5 5.5 12 6 12.5 6.5 db z in single input impedance (3) 68 75 82 k f pwm pulse width modulator base frequency 190 280 370 khz snr signal-to-noise ratio (a-weighting) po=0.4 w, r l =4 (with lc output filter) 88 db t wu wake-up time 5 10 ms t stby standby time 5 ms v n output voltage noise f = 20 hz to 20 khz, r l = 4 unweighted (filterless, g=6 db) a-weighted (filterless, g=6 db) unweighted (with lc output filter, g=6 db) a-weighted (with lc ou tput filter, g=6 db) unweighted (filterless, g=12 db) a-weighted (filterless, g=12 db) unweighted (with lc output filter, g=12 db) a-weighted (with lc ou tput filter, g=12 db) 70 50 66 49 91 65 84 64 v rms 1. standby mode is active when v stby is tied to gnd. 2. dynamic measurements - 20*log(rms(v out )/rms(v ripple )). v ripple is the superimposed sinus signal to v cc @ f = 217 hz. 3. independent of gain configuration (6 or 12 db) and between in+ or in- and gnd.
electrical characteristics ts2007 12/29 doc id 13123 rev 4 3.2 electrical characteristic curves the graphs shown in this section use the following abbreviations: r l + 15 h or 30 h = pure resistor + very low series resistance inductor filter = lc output filter (1 f+30 h for 4 and 0.5 f+60 h for 8 ) all measurements are done with c s1 =1 f and c s2 =100 nf (see figure 2 , except for the psrr where c s1 is removed (see figure 3 ). figure 2. test diagram for measurements figure 3. test diagram for psrr measurements vcc cin cin cs1 ts2007 cs2 100nf in+ in- 15 h or 30 h ? or lc filter out+ out- 1 f 4 or 8 rl 5th order 50khz low-pass filter audio measurement bandwith < 30khz gnd gnd gnd vcc cin cin ts2007 cs2 100nf in+ in- 15 h or 30 h ? or lc filter out+ out- 4 or 8 rl 5th order 50khz low-pass filter rms selective measurement bandwith =1% of fmeas gnd gnd gnd 1 f 1 f gnd 5th order 50khz low-pass filter reference 20hz to 20khz vripple vcc
ts2007 electrical characteristics doc id 13123 rev 4 13/29 table 10. index of graphics description figure current consumption vs. power supply voltage figure 4 current consumption vs. standby voltage figure 5 efficiency vs. output power figure 6 - figure 9 output power vs. power supply voltage figure 10 , figure 11 psrr vs. common mode input voltage figure 12 psrr vs. frequency figure 13 - figure 17 cmrr vs. common mode input voltage figure 18 cmrr vs. frequency figure 19 - figure 23 gain vs. frequency figure 24 , figure 25 thd+n vs. output power figure 26 - figure 33 thd+n vs. frequency figure 34 - figure 45 power derating curves figure 46 startup and shutdown time figure 47 - figure 49
electrical characteristics ts2007 14/29 doc id 13123 rev 4 figure 4. current consumption vs. power supply voltage figure 5. current consumption vs. standby voltage 2345 0.0 0.5 1.0 1.5 2.0 2.5 3.0 t amb =25c no loads current consumption (ma) power supply voltage (v) 012345 0.0 0.5 1.0 1.5 2.0 2.5 v cc =3.6v v cc =5v no load t amb =25c v cc =2.4v current consumption (ma) standby voltage (v) figure 6. efficiency vs. output power f igure 7. efficiency vs. output power 0.00.10.20.30.40.50.60.70.8 0 20 40 60 80 100 0 40 80 120 160 200 vcc=3v rl=4 + 15 h f=1khz thd+n 1% power dissipation efficiency efficiency (%) output power (w) power dissipation (mw) 0.0 0.5 1.0 1.5 2.0 2.5 0 20 40 60 80 100 0 100 200 300 400 500 vcc=5v rl=4 + 15 h f=1khz thd+n 1% power dissipation efficiency efficiency (%) output power (w) power dissipation (mw) figure 8. efficiency vs. output power f igure 9. efficiency vs. output power 0.0 0.1 0.2 0.3 0.4 0.5 0 20 40 60 80 100 0 10 20 30 40 50 vcc=3v rl=8 + 15 h f=1khz thd+n 1% power dissipation efficiency efficiency (%) output power (w) power dissipation (mw) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 20 40 60 80 100 0 25 50 75 100 125 vcc=5v rl=8 + 15 h f=1khz thd+n 1% power dissipation efficiency efficiency (%) output power (w) power dissipation (mw)
ts2007 electrical characteristics doc id 13123 rev 4 15/29 figure 10. output power vs. power supply voltage figure 11. output power vs. power supply voltage 23456 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 thd+n=10% rl = 4 + 15 h f = 1khz bw < 30khz tamb = 25 c thd+n=1% output power (w) power supply voltage (v) 23456 0.0 0.4 0.8 1.2 1.6 2.0 thd+n=10% rl = 8 + 15 h f = 1khz bw < 30khz tamb = 25 c thd+n=1% output power (w) power supply voltage (v) figure 12. psrr vs. common mode input voltage figure 13. psrr vs. frequency 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -80 -70 -60 -50 -40 -30 -20 -10 0 vcc=3v vcc=2.4v vcc=3.6, 4.2, 5v vripple = 200mvpp, f = 217hz, g = 6db rl 4 + 15 h, tamb = 25 c psrr(db) common mode input voltage (v) 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 gain=12db 20k 20 gain=6db inputs grounded, vripple = 200mvpp, v cc =5v, r l =4 +15 h, c in =1 f, t amb =25c psrr (db) frequency (hz) figure 14. psrr vs. frequency figure 15. psrr vs. frequency 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 20k 20 vcc=2.4, 3, 3.6, 4.2, 5v inputs grounded, vripple = 200mvpp a v =6db, r l =4 +15 h, c in =1 f, t amb =25c psrr (db) frequency (hz) 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 20k 20 vcc=2.4, 3, 3.6, 4.2, 5v inputs grounded, vripple = 200mvpp a v =6db, r l =4 +30 h, c in =1 f, t amb =25c psrr (db) frequency (hz)
electrical characteristics ts2007 16/29 doc id 13123 rev 4 figure 16. psrr vs. frequency figure 17. psrr vs. frequency 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 20k 20 vcc=2.4, 3, 3.6, 4.2, 5v inputs grounded, vripple = 200mvpp a v =6db, r l =8 +15 h, c in =1 f, t amb =25c psrr (db) frequency (hz) 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 20k 20 vcc=2.4, 3, 3.6, 4.2, 5v inputs grounded, vripple = 200mvpp a v =6db, r l =8 +30 h, c in =1 f, t amb =25c psrr (db) frequency (hz) figure 18. cmrr vs. common mode input voltage figure 19. cmrr vs. frequency 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -80 -70 -60 -50 -40 -30 -20 -10 0 vcc=3v vcc=2.4v vcc=3.6, 4.2, 5v vicm=200mvpp, f = 217hz, g=6db rl 4 + 15 h, t amb =25c psrr(db) common mode input voltage (v) 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 gain=12db gain=6db 20k 20 vicm=200mvpp, v cc =5v r l =4 +15 h, c in =1 f, t amb =25c cmrr (db) frequency (hz) figure 20. cmrr vs. frequency figure 21. cmrr vs. frequency 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 vcc=2.4, 3, 3.6, 4.2, 5v 20k 20 vicm=200mvpp, g=6db r l = 4 +15 h, c in =1 f, t amb =25c cmrr (db) frequency (hz) 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 vcc=2.4, 3, 3.6, 4.2, 5v 20k 20 vicm=200mvpp, g=6db r l = 4 +30 h, c in =1 f, t amb =25c cmrr (db) frequency (hz)
ts2007 electrical characteristics doc id 13123 rev 4 17/29 figure 22. cmrr vs. frequency figure 23. cmrr vs. frequency 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 vcc=2.4, 3, 3.6, 4.2, 5v 20k 20 vicm=200mvpp, g=6db r l = 8 +15 h, c in =1 f, t amb =25c cmrr (db) frequency (hz) 100 1k 10k -80 -70 -60 -50 -40 -30 -20 -10 0 vcc=2.4, 3, 3.6, 4.2, 5v 20k 20 vicm=200mvpp, g=6db r l = 8 +30 h, c in =1 f, t amb =25c cmrr (db) frequency (hz) figure 24. gain vs. frequency figure 25. gain vs. frequency 100 1k 10k 0 2 4 6 8 rl=4 +30 h rl=4 +15 h rl=8 +30 h rl=8 +15 h no load gain = 6db vin = 500 mvpp t amb = 25 c psrr (db) frequency (hz) 20 20k 100 1k 10k 6 8 10 12 14 rl=4 +30 h rl=4 +15 h rl=8 +30 h rl=8 +15 h no load gain = 12db vin = 500 mvpp t amb = 25 c psrr (db) frequency (hz) 20 20k figure 26. thd+n vs. output power figure 27. thd+n vs. output power 1e-3 0.01 0.1 1 0.1 1 10 3 vcc=3.6v vcc=5v vcc=2.4v rl = 4 + 15 h f = 1khz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w) 1e-3 0.01 0.1 1 0.1 1 10 3 vcc=3.6v vcc=5v vcc=2.4v rl = 4 + 30 h f = 1khz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w)
electrical characteristics ts2007 18/29 doc id 13123 rev 4 figure 28. thd+n vs. output power figure 29. thd+n vs. output power 1e-3 0.01 0.1 1 0.1 1 10 2 vcc=5v vcc=2.4v vcc=3.6v rl = 8 + 15 h f = 1khz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w) 1e-3 0.01 0.1 1 0.1 1 10 2 vcc=5v vcc=2.4v vcc=3.6v rl = 8 + 30 h f = 1khz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w) figure 30. thd+n vs. output power figure 31. thd+n vs. output power 1e-3 0.01 0.1 1 0.01 0.1 1 10 3 vcc=3.6v vcc=5v vcc=2.4v rl = 4 + 15 h f = 100hz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w) 1e-3 0.01 0.1 1 0.01 0.1 1 10 3 vcc=3.6v vcc=5v vcc=2.4v rl = 4 + 30 h f = 100hz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w) figure 32. thd+n vs. output power figure 33. thd+n vs. output power 1e-3 0.01 0.1 1 0.01 0.1 1 10 2 vcc=5v vcc=2.4v vcc=3.6v rl = 8 + 15 h f = 100hz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w) 1e-3 0.01 0.1 1 0.01 0.1 1 10 2 vcc=5v vcc=2.4v vcc=3.6v rl = 8 + 30 h f = 100hz g = 6db bw < 30khz tamb = 25 c thd + n (%) output power (w)
ts2007 electrical characteristics doc id 13123 rev 4 19/29 figure 34. thd+n vs. frequency figure 35. thd+n vs. frequency 100 1000 10000 0.01 0.1 1 10 po=0.2w po=0.4w rl=4 + 15 h g=6db bw < 30khz vcc=2.4v tamb = 25 c 20k 20 thd + n (%) frequency (hz) 100 1000 10000 0.01 0.1 1 10 po=0.2w po=0.4w rl=4 + 30 h g=6db bw < 30khz vcc=2.4v tamb = 25 c 20k 20 thd + n (%) frequency (hz) figure 36. thd+n vs. frequency figure 37. thd+n vs. frequency 100 1000 10000 0.01 0.1 1 10 po=0.1w po=0.2w rl=8 + 15 h g=6db bw < 30khz vcc=2.4v tamb = 25 c 20k 20 thd + n (%) frequency (hz) 100 1000 10000 0.01 0.1 1 10 po=0.1w po=0.2w rl=8 + 30 h g=6db bw < 30khz vcc=2.4v tamb = 25 c 20k 20 thd + n (%) frequency (hz) figure 38. thd+n vs. frequency figure 39. thd+n vs. frequency 100 1000 10000 0.01 0.1 1 10 po=0.45w po=0.9w rl=4 + 15 h g=6db bw < 30khz vcc=3.6v tamb = 25 c 20k 20 thd + n (%) frequency (hz) 100 1000 10000 0.01 0.1 1 10 po=0.45w po=0.9w rl=4 + 30 h g=6db bw < 30khz vcc=3.6v tamb = 25 c 20k 20 thd + n (%) frequency (hz)
electrical characteristics ts2007 20/29 doc id 13123 rev 4 figure 40. thd+n vs. frequency figure 41. thd+n vs. frequency 100 1000 10000 0.01 0.1 1 10 po=0.25w po=0.5w rl=8 + 15 h g=6db bw < 30khz vcc=3.6v tamb = 25 c 20k 20 thd + n (%) frequency (hz) 100 1000 10000 0.01 0.1 1 10 po=0.25w po=0.5w rl=8 + 30 h g=6db bw < 30khz vcc=3.6v tamb = 25 c 20k 20 thd + n (%) frequency (hz) figure 42. thd+n vs. frequency figure 43. thd+n vs. frequency 100 1000 10000 0.01 0.1 1 10 po=0.75w po=1.5w rl=4 + 15 h g=6db bw < 30khz vcc=5v tamb = 25 c 20k 20 thd + n (%) frequency (hz) 100 1000 10000 0.01 0.1 1 10 po=0.75w po=1.5w rl=4 + 30 h g=6db bw < 30khz vcc=5v tamb = 25 c 20k 20 thd + n (%) frequency (hz) figure 44. thd+n vs. frequency figure 45. thd+n vs. frequency 100 1000 10000 0.01 0.1 1 10 po=0.45w po=0.9w rl=8 + 15 h g=6db bw < 30khz vcc=5v tamb = 25 c 20k 20 thd + n (%) frequency (hz) 100 1000 10000 0.01 0.1 1 10 po=0.45w po=0.9w rl=8 + 30 h g=6db bw < 30khz vcc=5v tamb = 25 c 20k 20 thd + n (%) frequency (hz)
ts2007 electrical characteristics doc id 13123 rev 4 21/29 figure 46. power derating curves figure 47. startup and shutdown phase v cc =5 v, g=6 db, c in =1 f, inputs grounded 0 25 50 75 100 125 150 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 no heat sink mounted on a 4-layer pcb dfn8 package power dissipation (w) ambiant temperature ( c) figure 48. startup and shutdown phase v cc =5 v, g=6 db, c in =1 f, v in =1 v pp , f=10 khz figure 49. startup and shutdown phase v cc =5 v, g=12 db, c in =1 f, v in =1 v pp , f=10 khz
application information ts2007 22/29 doc id 13123 rev 4 4 application information 4.1 differential configuration principle the ts2007 is a monolithic fully-differentia l input/output class d power amplifier. the ts2007 also includes a common-mode feedback loop that controls the output bias value to average it at v cc /2 for any dc common-mode input voltage. this allows the device to always have a maximum output voltage swing, and by consequence, maximize the output power. moreover, as the load is connected differentially compared to a single-ended topology, the output is four times higher for the same power supply voltage. the advantages of a full-differential amplifier are: high psrr (power supply rejection ratio) high common-mode noise rejection virtually zero pop without additional circuitry, giving a faster startup time compared to conventional single-ended input amplifiers easier interfacing with differential output audio dac no input coupling capacitors required thanks to common-mode feedback loop 4.2 gain settings in the flat region of the frequency-response curve (no input coupling capacitor or internal feedback loop + load effect), the differential gain can be set to either 6 or 12 db depending on the logic level of the gs pin: note: between the gs pin and v cc there is an internal 300 k resistor. when the pin is floating the gain is 6 db. 4.3 common-mode feedba ck loop limitations as explained previously, the common-mode fe edback loop allows the output dc bias voltage to be averaged at v cc /2 for any dc common-mode bias input voltage. due to the v ic limitation of the input stage (see table 2: operating conditions on page 3 ), the common-mode feedback loop can fulfill its role only within the defined range. 4.4 low frequency response if a low frequency bandwidth lim itation is required , it is possible to use input coupling capacitors. in the low frequency region, the input coupling capacitor c in starts to have an effect. c in forms, with the input impedance z in , a first order high-pass filter with a -3 db cutoff frequency (see ta b l e 5 to ta b l e 9 ). gs gain (db) gain (v/v) 16 db2 0 12 db 4
ts2007 application information doc id 13123 rev 4 23/29 so, for a desired cutoff frequency f cl we can calculate c in : with f cl in hz, z in in and c in in f. the input impedance z in is for the whole power supply voltage range, typically 75 k . there is also a tolerance around the typical value (see ta b l e 5 to ta bl e 9 ). with regard to the tolerance, you can also calculate tolerance of f cl : 4.5 decoupling of the circuit a power supply capacitor, referred to as c s, is needed to correctly bypass the ts2007. the ts2007 has a typical switching frequency of 280 khz and output fall and rise time of about 5 ns. due to these very fast transients, careful decoupling is mandatory. a 1 f ceramic capacitor is enough, but it must be located very close to the ts2007 in order to avoid any extra parasitic inductance created by a long track wire. parasitic loop inductance, in relation with di/dt, introduces ov ervoltage that decreases the global efficiency of the device and may cause, if this parasitic inductance is too high, a ts2007 breakdown. in addition, even if a ceramic capacitor has an adequate high frequency esr value, its current capability is also important. a 0603 si ze is a good compromise, particularly when a 4 load is used. another important parameter is the rated voltage of the capacitor. a 1f/6.3v capacitor used at 5 v, loses about 50% of its value. with a power supply voltage of 5 v, the decoupling value, instead of 1 f, could be reduced to 0.5 f. as c s has particular influence on the thd+n in the medium to high frequency region, this capacitor variation becomes decisive. in addition, less decoupling means higher overshoots which can be problematic if they reach the power supply amr value (6 v). 4.6 wake-up time (t wu ) when the standby is released to set the device on, there is a wait of 5 ms typically. the ts2007 has an internal digital delay that mutes the outputs and releases them after this time in order to avoid any pop noise. note: the gain increases smoothly (see figure 49 ) from the mute to the gain selected by the gs pin ( section 4.2 ). f cl 1 2 z in c in ?? ? ------------------------------------ = c in 1 2 z in f cl ?? ? ------------------------------------- - = f clmax 1.103 f cl ? = f clmin 0.915 f cl ? =
application information ts2007 24/29 doc id 13123 rev 4 4.7 shutdown time when the standby command is set, the time required to put the two output stages into high impedance and to put the internal circuitry in shutdown mode, is typically 5 ms. this time is used to decrease the gain and avoid any pop noise during shutdown. note: the gain decreases smoothly until the outputs are muted (see figure 49 ). 4.8 consumption in shutdown mode between the shutdown pin and gnd there is an internal 300 k resistor. this resistor forces the ts2007 to be in shutdown when the shutdown input is left floating. however, this resistor also introduces add itional shutdown power consumption if the shutdown pin voltage is not 0 v. referring to table 2: operating conditions on page 3 , with a 0.4 v shutdown voltage pin for example, you must add 0.4v/300k = 1.3 a in typical (0.4v/273 k = 1.46 a in maximum) to the shutdown current specified in ta b l e 5 to ta bl e 9 . 4.9 single-ended input configuration it is possible to use the ts2007 in a single-ended input configuration. however, input coupling capacitors are needed in this configuration. the following schematic diagram shows a typical single-ended input application. figure 50. typical application for single-ended input configuration vcc cin cin input speaker cs 1uf ts2007 gain select + - standby control 3 4 2 1 5 8 6 7 pwm h bridge oscillator in- in+ gs vcc out+ out- standby gnd gain select control standby control
ts2007 application information doc id 13123 rev 4 25/29 4.10 output filter considerations the ts2007 is designed to operate without an output filter. however, due to very sharp transients on the ts2007 output, emi radi ated emissions may cause some standard compliance issues. these emi standard compliance issues can appear if the distance between the ts2007 outputs and loudspeaker terminal are long (typically more than 50 mm, or 100 mm in both directions, to the speaker terminals). as the pcb layout and internal equipment device are different for each configuration, it is difficult to provide a one-size-fits-all solution. however, to decrease the prob ability of emi issues, there are several simple rules to follow: reduce, as much as possible, the distance between the ts2007 output pins and the speaker terminals. use a ground plane for ?shielding? sensitive wires. place, as close as possible to the ts2007 and in-series with each output, a ferrite bead with a rated current of minimum 2.5 a and impedance greater than 50 at frequencies above 30 mhz. if, after testing, these ferrite beads are not necessary, replace them by a short-circuit. allow extra footprint to place, if necessary, a capacitor to short perturbations to ground (see figure 51 ). figure 51. ferrite chip bead placement in the case where the distance between the ts2007 output and the speaker terminals is too long, it is possible to have low frequency emi issues due to the fact that the typical operating frequency is 280 khz. in this configuration, it is necessary to use the output filter represented in figure 1 on page 4 as close as possible to the ts2007. to speaker about 100pf gnd ferrite chip bead from ts2007 output
package information ts2007 26/29 doc id 13123 rev 4 5 package information in order to meet environmental requirements, stmicroelectronics offers these devices in ecopack ? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an stmicroelectronics trademark. ecopack specifications are available at: www.st.com . figure 52. pinout (top view) figure 53. marking (top view) figure 54. recommended footprint for the ts2007 dfn8 package 1 2 3 4 8 7 6 5 1 2 3 4 8 7 6 5 logo: st part number: k007 three digit date code: yww the dot is for marking pin 1 1.8 mm 0.8 mm 0.35 mm 0.65 mm 1.4 mm 2.2 mm
ts2007 package information doc id 13123 rev 4 27/29 figure 55. dfn8 package mechanical data note: the dfn8 package has an exposed pad e2 x d2. for enhanced thermal performance, the exposed pad must be soldered to a copper area on the pcb, acting as a heatsink. this copper area can be electrically connected to pin 7 or left floating. ref dimensions millimeters mils min typ max min typ max a 0.50 0.60 0.65 19.6 23.6 25.6 a1 0.02 0.05 0.8 1.9 a3 0.22 8.6 b 0.25 0.30 0.35 9.8 11.8 13.8 d 2.85 3.00 3.15 112.2 118.1 124 d2 1.60 1.70 1.80 63 66.9 70.8 e 2.85 3.00 3.15 112.2 118.1 124 e2 1.10 1.20 1.30 43.3 47.2 51.2 e 0.65 25.5 l (1) 1. the dimension of l is not compliant with jedec mo-248 which recommends 0.40 mm +/-0.10 mm. 0.50 0.55 0.60 19.6 21.6 23.6 ddd 0.08 3.1 s eating plane c a 3 a1 a ddd c d e e e2 d2 b 12 3 4 8 7 65
ordering information ts2007 28/29 doc id 13123 rev 4 6 ordering information 7 revision history table 11. order code part number temperature range package marking ts2007iqt -40 c, +85 c dfn8 k07 date revision changes 11-jan-2007 1 initial release (preliminary data). 11-may-2007 2 first complete datasheet. this release of the datasheet includes electrical characteristics curv es and application information. 24-may-2007 3 corrected error in table 4: pin descriptions : descriptions of pin 5 and pin 8 were inverted. 02-may-2011 4 added minimum r l to table 1: absolute maximum ratings
ts2007 doc id 13123 rev 4 29/29 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2011 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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