Philips Semiconductors Class AB stereo headphone driver Product specification TDA1308 FEATURES Wide temperature range No switch ON/OFF clicks Excellent power supply ripple rejection Low power consumption Short-circuit resistant e High performance GENERAL DESCRIPTION The TDA1308 is an integrated class AB stereo headphone driver contained in an SO8 or a DIP8 plastic package. The device is fabricated in a 1 mm CMOS process and has been primarily developed for portable digital audio applications. high signal-to-noise ratio high slew rate low distortion e Large output voltage swing. QUICK REFERENCE DATA Vpp = 5 V; Vss = OV; Tamb = 25 C; fi = 1 kHz; Ry = 32 Q; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. | TYP, | MAX. | UNIT Vop supply voltage single 3.0 5.0 7.0 Vv dual 15 2.5 3.5 Vv Vss negative supply voltage -15 |-25 |-35 |V Ipp supply current no load - 3 5 mA Prot total power dissipation no load - 15 25 mW Po maximum output power THD < 0.1%; note 1 - 60 - mw (THD + NYS total harmonic distortion plus | note 1 noise-to-signal ratio _ 0.03 1006 1% - -70 65 dB Ry = 5 kQ ~ -101 |- dB S/N signal-to-noise ratio 100 110 - dB Ocs channel separation - 70 - dB Ri = 5 kQ - 105 - dB PSRR power supply ripple rejection | f, = 100 HZ; Viippie(e-p) = 100 mV | - 90 - dB Tamb operating ambient 40 - +85 0} temperature Note 1. Vpop = 5 V; Voip-p) = 3.5 V (at 0 dB). ORDERING INFORMATION PACKAGE TYPE NUMBER NAME DESCRIPTION VERSION TDA1308 DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1 TDA1308T S08 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 August 1994 1268Philips Semiconductors Product specification Class AB stereo headphone driver TDA1308 BLOCK DIAGRAM TDA1308 outa -! 81 Vop INA(neg) - 2 INA(pos) 3 71 outs <1S INB(neg) Vgg +4 + 5 INB(pos) MKA779 Fig.1 Block diagram. PINNING SYMBOL | PIN DESCRIPTION 0 OUTA 1 JoutputA outa C4 8] Yo INA(neg) 2 {inverting input A D INA(pos) | 3 | non-inverting input A INA(neq) [2_| TDA1308 |? ] OUTB Vgs 4 | negative supply INA(pos) [3 rey INB(neg) INB(pos) 5 | non-inverting input B INB(neg) | 6 | inverting input B Ves [4 5_] INB(pos) OUTB 7 | output B Vop 8 | positive supply MKA7BO Fig.2 Pin configuration. August 1994 1269Philips Semiconductors Product specification Class AB stereo headphone driver TDA1308 Cm h Fig.3 Equivalent schematic diagram. Yop > Vss INA/B(pos) [> INA/B(neg) E> OUTA/B <3 August 1994 1270Philips Semiconductors Product specification Class AB stereo headphone driver TDA1308 LIMITING VALUES In accordance with the Absolute Maximum Rating System (JEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT Voo supply voltage 0 8.0 Vv tscio} output short-circuit duration Tamb = 25 C; Prop = 1 W 20 - s Tstg storage temperature -65 +150 C Tamb operating ambient temperature -40 +85 C Vesd electrostatic discharge note 1 ~2000 +2000 Vv note 2 -200 +200 Vv Notes 1. Human body model: C = 100 pF; R = 1500 Q; 3 pulses positive plus 3 pulses negative. 2. Machine model: C = 200 pF: L=0.5 mH: R= 0; 3 pulses positive plus 3 pulses negative. THERMAL CHARACTERISTICS SYMBOL PARAMETER VALUE UNIT Rih pa thermal resistance from junction to ambient in free air DIP8 109 KW S08 210 KAW QUALITY SPECIFICATION In accordance with UZW-BO/FQ-0601. The numbers of the quality specification can be found in the Quality Reference Handbook". The handbook can be ordered using the code 9398 510 63011. August 1994 1271Philips Semiconductors Product specification Class AB stereo headphone driver TDA1308 CHARACTERISTICS Vpp = 5 V; Vg = 0 V; Tamb = 25 C; f| = 1 KHz; R, = 32 Q; unless otherwise specified. SYMBOL PARAMETER CONDITIONS | min. | TYP. | MAX. | UNIT Supplies Vop suprly voltage single 3.0 5.0 7.0 Vv dual 1.5 2.5 3.5 Vv Vss negative supply voltage -1.5 -2.5 ~3.5 Vv Ipp supply current no load - 3 5 mA Prot fotal power dissipation no load - 15 25 mw DC characteristics Vitos} input offset voltage - 10 - mV Ibias input bias current - 10 - pA Vom common mode voltage 0 - 3.5 Vv Gy oper-loop voltage gain RL =5kQ - 70 - dB lo maximum output current (THD + NYS < 0.1% ~ 60 - mA Ro output resistance - 0.25 ~ 2 Vo output voltage swing note 1 0.75 ~ 4.25 Vv RL = 16 Q; note 1 1.5 - 3.5 Vv R_ = 5 kQ; note 1 0.1 - 4.9 Vv PSRR power supply rejection ratio | f= 100 Hz; - 90 - dB Viipptetp-p) = 100 mV Os channel separation - 70 ~ dB Ri =5kQ ~ 105 - dB CL load capacitance - - 200 pF AC characteristics (THD + NVS | total harmonic distortion plus | note 2 - -70 -65 dB noise-to-signal ratio _ 0.03 0.06 % note 2; Rp =5 kQ - ~101 - dB - 0.0009 - % S/N signal-to-noise ratio 100 110 - dB fe unity gain frequency open-loop; RL = 5 kQ - 5.5 - MHz Po maximum output power (THD + N}/S < 0.1% - 60 - mw C; input capacitance - 3 - pF SR slew rate unity gain inverting - 5 - Vius B power bandwidth unity gain inverting - 20 - kHz Notes 1. Values are proportional to Vpp: (THD + N)/S < 0.1%. 2. Vpp = 5.0 V; Vojo-p) = 3.5 V (at 0 dB). August 1994 1272Philips Semiconductors Product specification Class AB stereo headphone driver TDA1308 TEST AND APPLICATION INFORMATION Yoo 100 uF VOUTA RL VINA +L c6 yp y TDA1308 100 pF VINB 100 uF Vouts RL MIKA TE2 Fig.4 Measurement circuit for inverting application. Ypp . Al c2 Le | 10 yF 7100 nF ' fe a l l RI 3, 100 uF R5 [ Rt 3.9 Nl 10 ka BK 1 5 8 2 ~ 1 8 V 3, St, tpais4sa 7 ant TDA1308 = ce a 33 ko 5 > 100 LF DATA 6 ds 6 - 4 7 4 a tL cs 1 uF I a 35.9 kN on 8 c4 Vt uKaTas 100 uF IE 1 oF 10 ka Fig.5 Example of application with TDA1545A (stereo continuous calibration DAC). August 1994 1273Philips Semiconductors Product specification Class AB stereo headphone driver TDA1308 MKA 786, Gy (48) ~80 -100 nee OZ RL= 169 RL= 320 -120 RL =5 ko 1072 1077 10% f (Hz) Fig.6 Operi-loop gain as a function of input Fig.7 Crosstalk as a function of input frequency. frequency. MKATES Po (mw) t00F- 4 4 tor 5 4 5 Voo (v) Fig.8 Output power as a function of supply voltage. August 1994Philips Semiconductors Product specification Class AB stereo headphone driver TDA1308 WMATA? RL = 16 0: Po = 50 mW Ry = 32.9; Po = 50 mw (THD + N)/S (dB) -60 RL = 5 kN: Vofpp) = 3.5 V =100 - >>> NNMN 1072 to-3 10-4 fj (Hz} Fig.9 Total harmonic distortion plus noise-to-signal ratio as a function of input frequency. (THD + N)/S (dB) -50 -70 Yow-p) () Fig.10 Total harmonic distortion plus noise-to-signal ratio as a function of output voltage level. August 1994 1275