Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsLinear ICsLinear IC - Audio amplifier 2-channel (stereo) Class AB Multiwatt 15

1/11

TDA7496

September 2003

■ 5+5W OUTPUT POWER

= 8Ω @THD = 10% V

= 22V

■ ST-BY AND MUTE FUNCTIONS

■ LOW TURN-ON TURN-OFF POP NOISE

■ LINEAR VOLUME CONTROL DC COUPLED

WITH POWER OP. AMP.

■ NO BOUCHEROT CELL

■ NO ST_BY RC INPUT NETWORK

■ SINGLE SUPPLY RANGING UP TO 35V

■ SHORT CIRCUIT PROTECTION

■ THERMAL OVERLOAD PROTECTION

■ INTERNALLY FIXED GAIN

■ SOFT CLIPPING

■ VARIABLE OUTPUT AFTER VOLUME

CONTROL CIRCUIT

■ MULTIWATT 15 PACKAGE

DESCRIPTION

The TDA7496 is a stereo 5+5W class AB power am-

plifier assembled i the @ Multiwatt 15 package, spe-

cially designed for high quality sound, TV

applications.

Features of the TDA7496 include linear volume con-

trol Stand-by and Mute functions.

The TDA7496 is pin to pin compatible with

TDA7496S, TDA7496SA, TDA7495, TDA7495SA,

TDA7494S, TDA7494SA.

Multiwatt 15

ORDERING NUMBER: TDA7496

5W+5W AMPLIFIER WITH DC VOLUME CONTROL

BLOCK DIAGRAM

VOLUME

OP AMP

MUTE/STBY

PROTECTIONS

470nF

INR

30K

VOLUME

OP AMP

-30K

1000µF

1µF

10K

470nF

INL

S_GND

300K

100nF

VOLUME

VAROUT_L

OUTR

STBY

MUTE

OUTL

PW_GND

470µF

SVR 7

D96AU440D

VAROUT_R

PW_GND

+5V

S1 ST-BY

+5V

S2 MUTE

+5V

S_GND

60K

MULTIPOWER BI50II TECHNOLOGY

Summary of content (11 pages)

PAGE 1
TDA7496 5W+5W AMPLIFIER WITH DC VOLUME CONTROL ■ 5+5W OUTPUT POWER RL = 8Ω @THD = 10% VCC = 22V MULTIPOWER BI50II TECHNOLOGY ■ ST-BY AND MUTE FUNCTIONS ■ LOW TURN-ON TURN-OFF POP NOISE ■ LINEAR VOLUME CONTROL DC COUPLED WITH POWER OP. AMP.
PAGE 2
TDA7496 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit 35 V 8 Vpp 15 W VS DC Supply Voltage VIN Maximum Input Voltage Ptot Total Power Dissipation (Tamb = 80°C) Tamb Ambient Operating Temperature (1) 0 to 70 °C Tstg,TJ Storage and Junction Temperature -40 to 150 °C 7 V Value Unit Typ. = 4; Max. = 4.6 °C/W 35 °C/W V3 Volume Control DC Voltage PIN CONNECTION (top view) 15 PW_GND 14 OUTR 13 VS 12 OUTL 11 PW_GND 10 MUTE 9 STBY 8 S_GND 7 SVR 6 N.C.
PAGE 3
TDA7496 ELECTRICAL CHARACTERISTCS (continued) (Refer to the test circuit Vs = 22V; RL = 8Ω, Rg = 50Ω, Tamb = 25°C) Symbol Ipeak Parameter Output Peak Current Test Condition (internally limited) Min. Typ. 1.0 1.3 VIN Input Signal GV Closed Loop Gain VOl Ctrl >4.5V 28.5 GVLine Monitor Out Gain VOl Ctrl >4.5V; Zload >30KΩ -1.5 AMin VOL Attenuation at Minimum Volume VOl Ctrl <0.5V SR Slew Rate Ri Input Resistance RVar Out Vrms 30 31.5 dB 0 1.
PAGE 4
TDA7496 APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of figure 1. Different values can be used, the following table can help the designer.
PAGE 5
TDA7496 MUTE STAND-BY TRUTH TABLE MUTE St-BY OPERATING CONDITION H H STAND-BY L H STAND-BY H L MUTE L L PLAY Turn ON/OFF Sequences (for optimizing the POP performances) Figure 1. USING ONLY THE MUTE FUNCTION VS (V) ST-BY pin#9 (V) 5 VSVR pin#7(V) 2.5V MUTE pin#10 (V) 5 INPUT (mV) VOUT (V) OFF STBY MUTE PLAY MUTE STBY OFF IQ (mA) D97AU684 USING ONLY THE MUTE FUNCTION To semplify the application, the stand-by pin can be connected directly to Ground.
PAGE 6
TDA7496 Figure 2. P.C.B. and Component layoutPCB and Component Layout Figure 3.
PAGE 7
TDA7496 Figure 4. Quiescent Current vs. Supply Voltage Iq (mA) D03AU1494 30 Vi=0 Figure 7. Output DC Offset vs. Supply Voltage Vodc-Vsvr (V) 280 D03AU1496 Vi=0 260 28 240 26 220 24 200 180 22 160 20 140 18 120 100 16 10 12 14 16 18 20 22 24 26 Supply Voltage (V) 28 30 Figure 5. Output Dc Offset vs. Supply Voltage Vodc (V) 16 15 14 13 12 11 10 9 8 7 6 5 4 10 32 D03AU1495 14 16 18 20 22 24 Supply Voltage (V) 26 28 30 32 Figure 8.
PAGE 8
TDA7496 Figure 10. Distortion vs Output Power Figure 13. Mute Attenuation vs Vpin 10 Distortion (%) D03AU1500 Mute Attenuation (dB) D03AU1503 0 -20 F=15KHz 1 Rl=8Ω 0dB @ Pout=1W -40 Vs=12V Rl=4Ω 0.1 -60 -80 F=1KHz 0.01 -100 -120 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Output Power (W) Figure 11. Closed Loop Gain vs. Frequency Closed loop Gain (dB) 30 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2 Vpin # 10 (V) PINS DESCRIPTION D03AU1501 Figure 14.
PAGE 9
TDA7496 Figure 17. PIN ST-BY Figure 20. PINS: VAROUT-L VAROUT-R VS VS 10µA STBY 200 VAROUT-L 65K D97AU594 D97AU590 Figure 18. PIN: MUTE Figure 21. PIN: VOLUME VS MUTE 200 VS 10K 10µA 50µA D97AU592 VOL Figure 19. PINS: OUT R, OUT L D97AU591 VS Figure 22.
PAGE 10
TDA7496 mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 5 0.197 B 2.65 0.104 C 1.6 D 0.063 1 0.039 E 0.49 0.55 0.019 0.022 F 0.66 0.75 0.026 0.030 G 1.02 1.27 1.52 0.040 0.050 0.060 G1 17.53 17.78 18.03 0.690 0.700 0.710 H1 19.6 0.862 0.874 0.886 0.870 0.886 0.772 H2 L 20.2 0.795 21.9 22.2 22.5 L1 21.7 22.1 22.5 0.854 L2 17.65 18.1 0.695 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.
PAGE 11
TDA7496 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. Specifications mentioned in this publication are subject to change without notice.