TDA7495

TDA7495 11W+11W AMPLIFIER WITH DC VOLUME CONTROL ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 11+11W OUTPUT POWER RL = 8Ω @THD = 10% VCC = 28V MULTIPOWER BI50II TECHNOLOGY 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 MULTIWATT15V ORDERING NUMBER: TDA7495 specially designed for high quality sound, TV applications. DESCRIPTION Features of the TDA7495 include linear volume control, Stand-by and mute functions. The TDA7495 is a stereo 11+11W class AB power amplifier assembled in the Multiwatt 15 package, BLOCK AND APPLICATION DIAGRAM VAROUT_R PW_GND 11 470nF 13 15 VOLUME 1 INR VS 2 1000µF 14 + 30K PW_GND - OUTR OP AMP S1 ST-BY S_GND 9 8 +5V STBY MUTE/STBY PROTECTIONS 60K VOLUME 470nF 12 + 30K - 1µF +5V OUTL 7 470µF 3 VOLUME 100nF November 2003 MUTE 1000µF OP AMP SVR 10 S_GND S2 MUTE 5 INL 10K 4 VAROUT_L 300K +5V D96AU440D 1/12 TDA7495 ABSOLUTE MAXIMUM RATINGS Symbol Parameter VS DC Supply Voltage VIN Maximum Input Voltage Ptot Total Power Dissipation (Tamb = 70°C) Value Unit 35 V 8 Vpp 20 W Tamb Ambient Operating Temperature (1) -20 to 85 °C Tstg, Tj Storage and Junction Temperature -40 to 150 °C 7 V Value Unit V3 Volume CTRL DC voltage (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 MUTE 9 STBY 8 S_GND 7 SVR 6 N.C. 5 INL 4 VAROUT_L 3 VOLUME 2 VAROUT_R 1 INR D96AU441B THERMAL DATA Symbol Parameter Rth j-case Thermal Resistance Junction-case Rth j-amb Thermal Resistance Junction-ambient 2/12 Typ. = 2 max Max. = 2.8 35 °C/W °C/W TDA7495 ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 20V; RL = 8Ω, Rg = 50Ω, Tamb = 25°C). Symbol Parameter VS Supply Voltage Range Iq Total Quiescent Current DCVOS Output DC Offset Referred to SVR Potenial VO Quiescent Output Voltage PO Output Power Test Condition Min. Typ. Max. 35 V 70 100 mA 650 mV 11 No Input Signal -650 Unit 10 V THD = 10%; RL = 8Ω; VS = 28V 9.5 11 W THD = 1%; RL = 8Ω; VS = 28V 7.5 8 W THD = 10%; RL = 4Ω; VCC = 20V 7 8 W THD = 1%; RL = 4Ω; VCC = 20V 5 6 W THD = 10%; RL = 8Ω; VCC = 18V 3.5 3.8 W THD = 1%; RL = 8Ω; VCC = 18V 2.6 2.9 THD Total Harmonic Distortion GV = 30dB; PO = 1W; f = 1KHz; Ipeak Output Peak Current (internally limited) 1.7 W 0.4 % 2.8 Vrms 2.4 A Vin Input Signal GV Closed Loop Gain Vol Ctrl > 4.5V 28.5 30 31.5 dB GvLine Monitor Out Gain Vol Ctrl > 4.5V; Zload > 30KΩ -1.5 0 1.5 dB AMin VOL Attenuation at Minimum Volume Vol Ctrl < 0.5V 80 BW eN dB 0.6 Total Output Noise SR Slew Rate Ri Input Resistance RVar Out Variable Output Resistance Rload Var Variable Output Load MHz f = 20Hz to 22KHz Play, max volume 500 800 µV f = 20Hz to 22KHz Play, max attenuation 100 250 µV f = 20Hz to 22KHz Mute 60 150 µV 5 8 V/µs 22.5 30 KΩ 30 100 2 Ω KΩ Out SVR Supply Voltage Rejection f = 1kHz; max volume CSVR = 470µF; VRIP = 1Vrms 35 39 dB f = 1kHz; max attenuation CSVR = 470µF; VRIP = 1Vrms 55 65 dB TM Thermal Muting 150 °C Ts Thermal Shut-down 160 °C MUTE STAND-BY & INPUT SELECTION FUNCTIONS VST-BY Stand-by threshold 2.3 2.5 2.7 2.3 2.5 2.7 V 0.6 1 mA VMUTE Mute Threshold IqST-BY Quiescent Current @ Stand-by AMUTE Mute Attenuation IstbyBIAS Stand-by bias current ImuteBIAS Mute bias current 50 Stand by on VST-BY = 5V VMUTE = 5V Play or Mute -20 V 65 dB 80 µA µA -5 Mute 1 5 µA Play 0.2 2 µA 3/12 TDA7495 Figure 1a. Application Circuit. +VS C1 1000µF C9 0.1µF VS VAROUT_R PW_GND 2 11 15 VOLUME 1 INR C2 470nF 13 14 + 30K PW_GND C8 1000µF PW_GND OUTR OP AMP S1 STBY S_GND 9 8 MUTE/STBY PROTECTIONS C7 1µF VOLUME 5 INL C3 470nF 12 + 30K - PW_GND 7 C4 470µF 3 VOLUME C5 100nF 4 VAROUT_L R1 300K TP1 Figure 1b. P.C.B. and Component Layout. 4/12 S2 MUTE OUTL C6 1000µF OP AMP SVR S_GND R2 10K 10 VOL P1 50K LOG +5V +5V D96AU493D +5V TDA7495 APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of figure 1a. Different values can be used, the following table can help the designer. COMPONENT SUGGESTION VALUE R1 300K Volume control circuit Larger volume regulation R2 10K Mute time constant Larger mute on/off time P1 50K Volume control circuit C1 1000µF Supply voltage bypass Danger of oscillation C2 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff C3 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff PURPOSE LARGER THAN SUGGESTION time SMALLER THAN SUGGESTION Smaller volume regulation time Smaller mute on/off time C4 470µF Ripple rejection Better SVR Worse SVR C5 100nF Volume control time costant Larger volume regulation time Smaller volume regulation time C6 1000µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff C7 1µF Mute time costant Larger mute on/off time Smaller mute on/off time C8 1000µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff C9 100nF Supply voltage bypass Danger of oscillation TYPICAL CHARACTERISTICS: Refer to the application circuit of fig.1A Tamb = 25°C; VS = 20V; RL = 8Ω; F = 1KHz; RS = 50Ω; unless otherwise specified. Figure 2. Output Power vs Supply Voltage POUT (W) 16 D97AU559 Figure 3. Distortion vs Output Power D97AU560 d (%) 14 VS=28V RL=8Ω RL=8Ω 12 1 d=10% 10 f=15KHz 8 6 f=1KHz 0.1 d=1% 4 2 0 0.01 11 15 19 23 27 31 VS(V) 0 2 4 6 8 POUT(W) 5/12 TDA7495 Figure 4. Output Power vs Supply Voltage POUT (W) D97AU561 Figure 7. Supply Voltage vs Frequency D97AU564 SVR (dB) VRIP=1VRMS 14 -20 12 RL=4Ω 10 -40 MAX VOLUME 8 d=10% -60 6 d=1% MAX ATTENUATION 4 -80 2 -100 0 10 12 14 16 18 20 22 Figure 5. Distortion vs Output Power D97AU562 d (%) 20 24 VS(V) 100 1K Figure 8. Stand-by Attenuation vs Vpin #9 ATT (dB) D97AU565 0dB=1W 0 VS=20V RL=4Ω f(Hz) -20 1 f=15KHz -40 f=1KHz -60 0.1 -80 -100 0.01 0 2 4 6 POUT(W) Figure 6. gain vs Volume Control (pin #3) Gain (dB) 30 D97AU563 -120 0 1 2 10 POUT=1W 0 4 Vpin#9(V) Figure 9. Mute Attenuation vs V pin #10 ATT (dB) D97AU566 0dB=1W 0 20 3 -20 -10 -40 -20 -30 -40 -60 -50 -60 -80 -70 -80 -100 0.0 6/12 1.0 2.0 3.0 4.0 Vpin#3(V) 0 1 2 3 4 Vpin#10(V) TDA7495 Figure 10. Power dissipation vs Output Power PDISS (W) D97AU567 RL=2 x 8Ω f=1KHz 10 Figure 11. Power Dissipation vs Output Power PDISS (W) 16 D97AU568 RL=2 x 4Ω f=1KHz VS=26V VS=28V 8 12 VS=24V 6 VS=20V 8 VS=18V 4 VS=14V 2 4 0 0 0.1 1 10 POUT(W) 0.1 1 10 POUT(W) 7/12 TDA7495 MUTE STAND-BY TRUTH TABLE MUTE ST-BY OPERATING CONDITION H H STANDBY L H STANDBY H L MUTE L L PLAY Turn ON/OFF Sequences (for optimizing the POP performances) A) USING MUTE AND STAND-BY FUNCTIONS VS (V) 28 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) D96AU531A B) USING ONLY THE MUTE FUNCTION To semplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transitions we recommend to respect the following conditions: – At the turn-on the transition mute to play must be made when the SVR pin is higher than 2.5V – At the turn-off the TDA7495 must be brought to mute from the play condition when the SVR pin is higher than 2.5V. 8/12 TDA7495 Figure 16. PINS: VAROUT-L, VAROUT-R Figure 12. PINS: INL, INR VS VS 500µA 6K VAROUT-L INn 30K D97AU590 D97AU589 SVR Figure 13. PIN: VOLUME Figure 17. PIN: MUTE VS VS 10µA MUTE 200 10K VOL 50µA D97AU592 D97AU591 Figure 18. PINS: OUT R, OUT L Figure 14. PINS: PW-GND, S-GND VS VS OUT GND D97AU593 D97AU588 Figure 15. PIN: STBY VS 10µA STBY 200 65K D97AU594 9/12 TDA7495 Figure 19. PIN: SVR VS VS VS OUT L + - 20K 6K 1K 20K 6K 1K 30K SVR 30K + 100µA D97AU585A 10/12 OUT R TDA7495 DIM. mm MIN. TYP. inch MAX. MIN. TYP. A5 MAX. 0.197 B 2.65 C 0.104 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 L OUTLINE AND MECHANICAL DATA 20.2 0.795 21.9 22.2 22.5 0.862 0.874 0.886 L1 21.7 22.1 22.5 0.854 0.87 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 4.73 5.08 5.43 0.186 0.200 0.214 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 Multiwatt15 (Vertical) 0016036 J 11/12 TDA7495 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. All other names are the property of their respective owners © 2003 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 12/12