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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%,R L =8?,V S =+14V NO POP AT TURN-ON/OFF MUTE (POP FREE)

STAND-BY FEATURE (LOW I q )

THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION TO GND DESCRIPTION

The TDA7269is class AB dual Audio power am-plifier assembled in the Multiwatt package,spe-cially designed for high quality sound application as Hi-Fi music centers and stereo TV sets.July 1998?

Multiwatt11

ORDERING NUMBER:TDA7269

+5V

18K

15K

IN (L)

1μF

15K 1μF

MUTE/ ST-BY GND

IN (R)

1μF

4.7?4.7?100nF 100nF

OUT (L)

OUT (R)

1000μF

+V S

611

++--D94AU085

RL (L)

RL (R)

-V S

μP

560?18K IN-(L)

IN-(R)

560?18K

Figure 1:Typical Application Circuit

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ABSOLUTE MAXIMUM RATINGS

Symbol Parameter

Value Unit V S DC Supply Voltage

±22V I O Output Peak Current (internally limited)3A P tot Power Dissipation T case =70°C 40W T op Operating Temperature

0to 70°C T stg ,T j

Storage and Junction Temperature

-40to +150

°C

234567910118IN+(1)IN-(1)GND IN-(2)IN+(2)-V S MUTE OUTPUT(2)+V S

OUTPUT(1)-V S

TAB CONNECTED TO PIN 6D95AU316

PIN CONNECTION (Top view)

THERMAL DATA

Symbol Description

Value Unit R th j-case

Thermal Resistance Junction-case

Max

2.8

°C/W

PLAY 5V

R2 15K

IN (L)

C31μF

R1 10K C1 1μF

MUTE/ST-BY

IN (R)

C41μF

R8 4.7?R7 1K

C7 0.1μF OUT (L)

OUT (R)

C5 1000μF

+V S

611

++--

D96AU444

OUT (L)

OUT (R)

GND

R4 30K IN-(L)

IN-(R)

R5 1K

R6 30K R9 4.7?C9470μF C10470μF C8 0.1μF R3 15K

0 MUTE

Q1 BSX33C6 0.1μF

D15.1V

C2 100μF

SINGLE SUPPLY APPLICATION

TDA7269

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ELECTRICAL CHARACTERISTICS(Refer to the test circuit,V S=+14V;R L=8?;R S=50?;

G V=30dB;f=1KHz;T amb=25°C,unless otherwise specified.)

Symbol Parameter Test Condition Min.Typ.Max.Unit V S Supply Range+5+20V

I q Total Quiescent Current60100mA

V OS Input Offset Voltage–25+25mV

I b Non Inverting Input Bias Current500nA

P O Output Power THD=10%

R L=8? ;

V S+12.5V;R L=4?

7.5

THD=1%

R L=8? ;

V S+12.5V;R L=4? 7.5

7.5

THD Total Harmonic Distortion R L=8? ;P O=1W;f=1KHz0.03%

R L=8? ;

P O=0.1to5W;

f=100Hz to15KHz

0.7%

R L=4?;P O=1W;f=1KHz0.02%

R L=4? ;V S+10V;

P O=0.1to5W;

f=100Hz to15KHz

C T Cross Talk f=1KHz

f=10KHz5070

SR Slew Rate 6.510V/μs G OL Open Loop Voltage Gain80dB

e N Total Input Noise A Curve

f=20Hz to22KHz 3

μV

R i Input Resistance1520K?SVR Supply Voltage Rejection

(each channel)

fr=100Hz Vr=0.5V60dB

T j Thermal Shut-down

Junction Temperature

145°C MUTE FUNCTION[ref:+V S](*)

VT MUTE Mute/Play Threshold-7-6-5V

A M Mute Attenuation6070d

B STAND-BY FUNCTION[ref:+V S](Only for Split Supply)

VT ST-BY Stand-by/Mute Threshold-3.5-2.5-1.5V

A ST-BY Stand-by Attenuation110dB

I q ST-BY Quiescent Current@Stand-by36mA (*)In mute condition the current drawn from Pin5must be≤650μA.

TDA7269

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MUTE STAND-BY FUNCTION

The pin 5(MUTE/STAND-BY)controls the ampli-fier status by two different thresholds,referred to +V S .

-When V pin5higher than =+V S -2.5V the amplifier is in Stand-by mode and the final stage generators are off -when V pin5is between +V S -2.5V and +V S -6V the final stage current generators are switched on and the amplifier is in mute mode

-when V pin5is lower than +V S -6V the am-plifier is play mode.

OFF STDBY

MUTE

MUTE MUTE MUTE

PLAY STDBY PLAY OFF STDBY

+V S (V)-20-V S V IN (mV)

Vpin5 (V)V S V S -2.5V S-6V S -10

I q (mA)

VOUT (V)

D94AU086

Figure 2

TDA7269

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APPLICATIONS SUGGESTION (Demo Board Schematic)

The recommended values of the external compo-nents are those shown are the demo board sche-matic different values can be used:the following table can help the designer.

IN (L)

R2C3

MUTE/ ST-BY GND IN (R)C2

R7R10C8

OUT (L)

OUT (R)

+V S

611

++--D94AU087

RL (L)

RL (R)

+V S

-V S

R5IN-(L)

IN-(R)

SW1

R1DZ

R4SW2

Figure 3:Test and Application Circuit (Stereo Configuration)

COMPONENTS

RECOMMENDED

VALUE

PURPOSE LARGER THAN

RECOMMENDED VALUE SMALLER THAN RECOMMENDED VALUE

R110K ?Mute Circuit Increase of Dz Biasing Current

R215K ?Mute Circuit V pin #5Shifted Downward V pin #5Shifted Upward R318K ?Mute Circuit V pin #5Shifted Upward V pin #5Shifted Downward R415K ?Mute Circuit V pin #5Shifted Upward V pin #5Shifted Downward R5,R818K ?Closed Loop Gain Setting (*)

Increase of Gain R6,R9560?Decrease of Gain R7,R10 4.7?Frequency Stability Danger of Oscillations

Danger of Oscillations C1,C21μF Input DC Decoupling Higher Low Frequency Cutoff

C31μF St-By/Mute Time Constant Larger On/Off Time

Smaller On/Off Time C4,C61000μF Supply Voltage Bypass Danger of Oscillations C5,C70.1μF Supply Voltage Bypass

Danger of Oscillations C8,C90.1μF Frequency Stability Dz

5.1V

Mute Circuit

(*)Closed loop gain has to be =>25dB

TDA7269

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MULTIWATT11PACKAGE MECHANICAL DATA

DIM.

mm inch

MIN.TYP.MAX.MIN.TYP.MAX.

A50.197

B 2.650.104

C 1.60.063

D10.039

E0.490.550.0190.022 F0.880.950.0350.037

G 1.57 1.7 1.830.0620.0670.072

G116.871717.130.6640.6690.674 H119.60.772

H220.20.795 L21.522.30.8460.878 L121.422.20.8430.874 L217.418.10.6850.713 L317.2517.517.750.6790.6890.699 L410.310.710.90.4060.4210.429 L7 2.65 2.90.1040.114 M 4.1 4.3 4.50.1610.1690.177 M1 4.88 5.08 5.30.1920.2000.209 S 1.9 2.60.0750.102 S1 1.9 2.60.0750.102 Dia1 3.65 3.850.1440.152 TDA7269

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TDA7269

Information furnished is believed to be accurate and reliable.However,STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use.No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics.Specification mentioned in this publication are subject to change without notice.This publication supersedes and replaces all information previously supplied.STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.

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