TDA7497S 8W+8W+15W TRIPLE AMPLIFIER ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 8+8W (RL = 8Ω) + 15W ( RL = 4Ω) OUTPUT POWER @THD = 10%, Vcc = 25V INDEPENDENT MUTE FOR CENTER CHANNEL AND MAIN CHANNELS NO TURN-ON TURN-OFF POP NOISE NO BOUCHEROT CELL SINGLE SUPPLY RANGING UP TO 35V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING MULTIWATT 15 PACKAGE MULTIPOWER BI50II TECHNOLOGY Multiwatt15 ORDERING NUMBER: TDA7497S DESCRIPTION The TDA7497S is a triple 8+8+15W class AB power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. Features of the TDA7497S include mute functions, independently controller for main and center channels. BLOCK DIAGRAM +VS VS_C PW_GND C1 2 13 11 1 INR 470nF S_GND 14 + 30K 8 VS C8 1000µF C12 1µF OP AMP 60K C2 5 INL 470nF 30K C3 6 INC 470nF C4 470µF + SVR 7 10 12 - 10K R1 MUTE1 C7 1µF +5V S_GND +5V S2 MUTE1 (L/R) OUTL C6 1000µF OP AMP 3 + 30K S1 MUTE2 (CENTER) 10K R2 MUTE2 MUTE PROTECTIONS 4 C10 0.1µF OUTR - 9 PW_GND_C C9 1000µF C11 0.1µF - OUTC C5 1000µF OP AMP 15 PW_GND D98AU961B April 2003 1/7 TDA7497S ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS DC Supply Voltage 35 V Ptot Total Power Dissipation (Tamb = 70°C) 20 W Tamb Ambient Operating Temperature (1) 0 to 70 °C Tstg, Tj Storage and Junction Temperature -40 to 150 °C (1) Operation between -20 to 85 °C guaranteed by correlation with 0 to 70°C. PIN CONNECTION (Top view) 15 PW_GND 14 OUTR 13 VS 12 OUTL 11 PW_GND 10 MUTE1 (L/R) 9 MUTE2 (CENTER) 8 S_GND 7 SVR 6 INC 5 INL 4 PW_GND_C 3 OUTC 2 VS_C 1 INR D98AU962A THERMAL DATA Symbol Parameter Rth j-case Thermal Resistance Junction-case Rth j-amb Thermal Resistance Junction-ambient 2/7 Value Unit Typ.=1.3 max = 1.9 °C/W max = 35 °C/W TDA7497S ELECTRICAL CHARACTERISTCS (Refer to the test circuit VS = 25V; Rg = 50Ω, Tamb = 25°C) Symbol Parameter VS Supply Voltage Range Iq Total Quiescent Current VO Quiescent Output Voltage PO_L/R Test Condition Min. Typ. Max. Unit 30 V 60 100 mA 11.5 12.5 13.5 V 11 Output Power Left / RightChannels THD = 10%; RL = 8Ω; THD = 1%; RL = 8Ω; 6 5 8 6 W W PO_C Output Power Center Channel THD = 10%; RL = 4Ω THD = 1%; RL = 4Ω 12 10 15 12 W W THD Total Harmonic Distortion PO = 1W; f = 1KHz; Output Peak Current (internally limited) 2.0 A Output Peak Current Central Channel (internally limited) 2.5 A Ipeak L/R Ipeak C GV ∆GV Closed Loop Gain 0.4 28.5 L/R Voltage GainMatching -1 BW 30.5 dB 1 dB 0.6 eN Total Output Noise SR Slew Rate Ri Input Resistance SVR 29.5 Supply Voltage Rejection f = 20Hz to 22KHz f = 1kHz CSVR = 470µF; VRIP = 1Vrms 60 % MHz 150 µV 5 8 V/µs 22.5 30 KΩ 50 60 dB TM Thermal Muting 150 °C Ts Thermal Shut-down 160 °C MUTE & INPUT SELECTION FUNCTIONS VMUTE1 Mute 1 ON threshold (L/R) 3.5 V Mute 1 OFF threshold (L/R) VMUTE2 1.5 Mute 2 ON Threshold (center) 3.5 V Mute 2 OFF Threshold (center) AMUTE 1.5 Mute Attenuation ImuteBIAS Mute bias current Mute1/Mute2 50 V 65 V dB Mute 1 5 µA Play 0.2 2 µA 3/7 TDA7497S Figure 1. PC Boar and Component Layout 4/7 TDA7497S Figure 2. Output Power vs Supply Voltage Figure 4. THD+N vs Output Power T.H.D. (%) W 10 10 TDA7497 Rl = 80hm f = 1KHz 8 5 2 THD=10% 6 1 TDA7497 Vcc=26Vdc Rl = 8ohm f = 1KHz 0.5 4 THD=1% 0.2 2 0.1 0 +10 0.05 +12 +14 +16 +18 Vdc +20 +22 +24 +25 0.02 Pout vs Vcc : RL=8ohm, F=1KHz (filter 22Hz-22KHz), THD= 1%, 10%, channels L/R/C 0.01 Figure 3. Frequency Response 60m 100m 200m 500m 1 2 5 10 Figure 5. Pdiss vs Output Power Pdiss. (W)helv Amp. (dB) 16 +5l 15 +4 +3 14 TDA7497 Vcc=25 Vdc Rl = 8ohm 0dB = 1W +2 +1 13 +0 TDA7497 Vcc = 26V Right/Left/Center= 8 ohm X axis is 3X Pout 12 -1 -2 11 -3 10 -4 -5 20 50 100 200 500 1k 2k Frequency ( Hz ) 5k 10k 20k 50k 100k 9 0 5 10 15 20 25 30 Pout. (W) 5/7 TDA7497S 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 E 0.49 0.039 0.55 0.019 0.022 F 0.66 0.75 0.026 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 0.030 0.772 H2 20.2 0.795 L 21.9 22.2 22.5 0.862 0.874 0.886 L1 21.7 22.1 22.5 0.854 0.870 0.886 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 0.104 0.713 0.114 M 4.25 4.55 4.85 0.167 0.179 0.191 M1 4.63 5.08 5.53 0.182 0.200 0.218 S 1.9 2.6 0.075 0.102 S1 1.9 2.6 0.075 0.102 Dia1 3.65 3.85 0.144 0.152 6/7 OUTLINE AND MECHANICAL DATA Multiwatt15 V TDA7497S 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. 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. The ST logo is a registered trademark of STMicroelectronics 2003 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 7/7