TDA7269

TDA7269 ® 10 + 10W STEREO AMPLIFIER WITH MUTE & ST-BY WIDE SUPPLY VOLTAGE RANGE UP TO ±20V SPLIT SUPPLY HIGH OUTPUT POWER 10 + 10W @ THD =10%, RL = 8Ω, VS = +14V NO POP AT TURN-ON/OFF MUTE (POP FREE) STAND-BY FEATURE (LOW Iq) THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION TO GND ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t le o s b O Multiwatt11 ORDERING NUMBER: TDA7269 DESCRIPTION The TDA7269 is class AB dual Audio power amplifier assembled in the Multiwatt package, specially designed for high quality sound application as Hi-Fi music centers and stereo TV sets. Figure 1: Typical Application Circuit +VS 15K 1000μF 1μF MUTE/ ST-BY IN (L) 3 5 7 + 15K +5V 4 OUT (L) 8 IN- (L) - 1μF 18K GND 18K 9 4.7Ω RL (L) 100nF 560Ω μP 10 IN- (R) 560Ω 18K 1μF IN (R) 11 - 2 + 1 6 -VS OUT (R) 4.7Ω RL (R) 100nF 1000μF D94AU085 July 1998 1/7 TDA7269 ABSOLUTE MAXIMUM RATINGS Symbol Parameter VS DC Supply Voltage IO Output Peak Current (internally limited) Ptot Power Dissipation T case = 70°C Top Operating Temperature Tstg, Tj Value Storage and Junction Temperature Unit ±22 V 3 A 40 W 0 to 70 °C -40 to +150 °C PIN CONNECTION (Top view) ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t le o s b O 11 IN+(1) 10 IN-(1) 9 GND 8 IN-(2) 7 IN+(2) 6 -VS 5 MUTE 4 OUTPUT(2) 3 +VS 2 OUTPUT(1) 1 -VS TAB CONNECTED TO PIN 6 D95AU316 THERMAL DATA Symbol Description Thermal Resistance Junction-case Rth j-case Max Value Unit 2.8 °C/W SINGLE SUPPLY APPLICATION +VS D1 5.1V R1 10K C1 1μF R3 15K C5 1000μF MUTE/ST-BY PLAY 5V 0 MUTE R2 15K C2 100μF IN (L) Q1 BSX33 3 5 7 + 4 OUT (L) 8 IN- (L) - C3 1μF 9 C4 1μF IN (R) 11 C6 0.1μF C9 470μF R4 30K R5 1K + 2 IN- (R) R8 4.7Ω C7 0.1μF OUT (L) C10 470μF - 10 1 6 GND OUT (R) R6 30K R7 1K R9 4.7Ω C8 0.1μF D96AU444 2/7 OUT (R) TDA7269 ELECTRICAL CHARACTERISTICS (Refer to the test circuit, VS = + 14V; RL = 8Ω; RS = 50Ω; GV = 30dB; f = 1KHz; Tamb = 25°C, unless otherwise specified.) Symbol Parameter VS Supply Range Iq Total Quiescent Current VOS Non Inverting Input Bias Current PO Output Power Total Harmonic Distortion Min. Typ. Max. Unit +20 V 100 mA +25 mV +5 60 Input Offset Voltage Ib THD Test Condition –25 500 nA 10 10 W W THD = 1% R L = 8Ω ; VS + 12.5V; RL = 4Ω 7.5 7.5 R L = 8Ω ; PO = 1W; f = 1KHz 0.03 (s) THD = 10% R L = 8Ω ; VS + 12.5V; RL = 4Ω R L = 8Ω ; PO = 0.1 to 5W; f = 100Hz to 15KHz 8 7.5 u d o ct 0.7 W W % % ) s ( t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t le o s b O R L = 4Ω ; PO = 1W; f = 1KHz R L = 4Ω ; VS + 10V; PO = 0.1 to 5W; f = 100Hz to 15KHz CT Cross Talk SR Slew Rate GOL Open Loop Voltage Gain eN Ri SVR Tj Total Input Noise f = 1KHz f = 10KHz 50 6.5 A Curve f = 20Hz to 22KHz Input Resistance Supply Voltage Rejection (each channel) Pr Vr = 0.5V Thermal Shut-down Junction Temperature % 1 % 70 60 dB dB 10 V/μs 80 dB 3 4 15 fr = 100Hz 0.02 8 μV μV 20 KΩ 60 dB 145 °C MUTE FUNCTION [ref: +VS] (*) VTMUTE AM Mute / Play Threshold -7 -6 Mute Attenuation 60 70 -3.5 -2.5 -5 V dB STAND-BY FUNCTION [ref: +V S] (Only for Split Supply) VTST-BY Stand-by / Mute Threshold AST-BY Stand-by Attenuation Iq ST-BY Quiescent Current @ Stand-by -1.5 V 6 mA 110 3 dB (*) In mute condition the current drawn from Pin 5 must be ≤650μA. 3/7 TDA7269 - when Vpin5 is between +VS - 2.5V and +VS - 6V the final stage current generators are switched on and the amplifier is in mute mode - when Vpin5 is lower than +VS - 6V the amplifier is play mode. MUTE STAND-BY FUNCTION The pin 5 (MUTE/STAND-BY) controls the amplifier status by two different thresholds, referred to +VS. - When Vpin5 higher than = +VS - 2.5V the amplifier is in Stand-by mode and the final stage generators are off Figure 2 +VS (V) ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t le o s b O 20 t -VS -20 VIN (mV) Vpin5 (V) VS VS-2.5 VS-6 VS-10 Iq (mA) 0 VOUT (V) OFF PLAY STDBY PLAY OFF STDBY STDBY MUTE 4/7 D94AU086 MUTE MUTE MUTE TDA7269 Figure 3: Test and Application Circuit (Stereo Configuration) +VS R2 C3 MUTE/ ST-BY R1 SW1 IN (L) 7 C5 3 5 + 4 OUT (L) - C1 DZ C4 +VS R7 R5 RL (L) ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t le o s b O 8 R4 IN- (L) C8 R3 GND 9 R6 SW2 10 R9 IN- (R) R8 C2 IN (R) 11 - 2 OUT (R) + 1 R10 6 -VS C7 RL (R) C9 C6 D94AU087 APPLICATIONS SUGGESTION (Demo Board Schematic) The recommended values of the external compo- nents are those shown are the demo board schematic different values can be used: the following table can help the designer. LARGER THAN RECOMMENDED VALUE SMALLER THAN RECOMMENDED VALUE COMPONENTS RECOMMENDED VALUE R1 10KΩ Mute Circuit Increase of Dz Biasing Current R2 15KΩ Mute Circuit Vpin # 5 Shifted Downward Vpin # 5 Shifted Upward R3 18KΩ Mute Circuit Vpin # 5 Shifted Upward Vpin # 5 Shifted Downward R4 15KΩ Mute Circuit Vpin # 5 Shifted Upward Vpin # 5 Shifted Downward R5, R8 18KΩ 560Ω Closed Loop Gain Setting (*) Increase of Gain R6, R9 R7, R10 4.7Ω Frequency Stability Danger of Oscillations C1, C2 1μF Input DC Decoupling C3 1μF St-By/Mute Time Constant C4, C6 1000μF Supply Voltage Bypass Danger of Oscillations C5, C7 0.1μF Supply Voltage Bypass Danger of Oscillations C8, C9 0.1μF Frequency Stability Dz 5.1V Mute Circuit PURPOSE Decrease of Gain Danger of Oscillations Higher Low Frequency Cutoff Larger On/Off Time Smaller On/Off Time (*) Closed loop gain has to be => 25dB 5/7 TDA7269 MULTIWATT11 PACKAGE MECHANICAL DATA DIM. mm MIN. TYP. inch MAX. MIN. TYP. MAX. A 5 B 2.65 0.104 C 1.6 0.063 D 0.197 1 0.039 E 0.49 0.55 0.019 0.022 F 0.88 0.95 0.035 0.037 G 1.57 1.7 1.83 0.062 0.067 0.072 G1 16.87 17 17.13 0.664 0.669 0.674 H1 19.6 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t le o s b O 0.772 H2 6/7 20.2 0.795 L 21.5 22.3 0.846 0.878 L1 21.4 22.2 0.843 0.874 L2 17.4 18.1 0.685 L3 17.25 17.5 17.75 0.679 0.689 0.699 L4 10.3 10.7 10.9 0.406 0.421 0.429 L7 2.65 2.9 0.104 M 4.1 4.3 4.5 0.161 0.169 0.177 M1 4.88 5.08 5.3 0.192 0.200 0.209 0.713 0.114 S 1.9 2.6 0.075 S1 1.9 2.6 0.075 0.102 0.102 Dia1 3.65 3.85 0.144 0.152 TDA7269 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t le o s b O Information furnished is believed to be accurate and reliable. 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