|
If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
Datasheet File OCR Text: |
TDA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL 2W+2W OUTPUT POWER RL = 8 @THD = 10% VCC = 14V 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 15V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING VARIABLE OUTPUT AFTER VOLUME CONTROL CIRCUIT POWERDIP (14+3+3) PACKAGE DESCRIPTION The TDA7496L is a stereo 2W+2W class AB power amplifier assembled in the @ Powerdip BLOCK DIAGRAM VAROUT_R GND 7 1,2,3,13, 18,19,20 9 470nF 30K VOLUME + OP AMP S1 ST-BY 11 MUTE/STBY PROTECTIONS VOLUME INL 470nF 4 30K + OP AMP SVR 470F VOLUME 10 6 5 VAROUT_L +5V D97AU596A Powerdip (14+3+3) ORDERING NUMBER: TDA7496L 14+3+3 package, specially designed for high quality sound, TV and Monitor applications. Features of the TDA7496L include linear volume control, Stand-by and mute functions. VS 15,16 INR 14 1000F OUTR STBY 10K +5V S_GND 60K 12 MUTE 1F S2 MUTE +5V 17 OUTL 1000F 100nF 300K April 1998 1/10 TDA7496L ABSOLUTE MAXIMUM RATINGS Symbol VS VIN Ptot Tamb Tstg, Tj V6 DC Supply Voltage Maximum Input Voltage Total Power Dissipation (Tcase = 60C) Ambient Operating Temperature Storage and Junction Temperature Volume CTRL DC voltage Parameter Value 26 8 6 0 to 70 -40 to 150 7 Unit V Vpp W C C V PIN CONNECTION GND GND GND INL VAROUT_L VOLUME VAROUT_R N.C. INR SVR 1 2 3 4 5 6 7 8 9 10 D97AU597A Rth with "on board" Square Heatsink vs. copper area. 20 19 18 17 16 15 14 13 12 11 GND GND GND OUTL VS VS OUTR GND MUTE STBY 30 0 4 8 12 Area(cm2) 40 50 PC BOARD Rthj-a (C/W) D97AU675 COPPER AREA 35 THICKNESS 60 THERMAL DATA Symbol Rth j-pins Rth j-amb (*) Parameter Thermal Resistance Junction-pins Thermal Resistance Junction-ambient max. max. Value 15 50 Unit C/W C/W (*) Mounted on PCB with no heatsink ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 14V; RL = 8, Rg = 50, Tamb = 25C). Symbol VS Iq DCVOS VO PO THD Ipeak Vin GV GvLine AMin VOL BW 2/10 Parameter Supply Voltage Range Total Quiescent Current Output DC Offset Referred to SVR Potenial Quiescent Output Voltage Output Power Total Harmonic Distortion Output Peak Current Input Signal Closed Loop Gain Monitor Out Gain Attenuation at Minimum Volume Test Condition Min. 10 Typ. 25 200 7 2 1.3 0.4 0.7 28.5 -1.5 80 0.9 30 0 0.6 2.8 31.5 1.5 Max. 18 50 Unit V mA mV V W W % A Vrms dB dB dB MHz No Input Signal THD = 10%; RL = 8; THD = 1%; RL = 8; GV = 30dB; PO = 1W; f = 1KHz; (internally limited) Vol Ctrl > 4.5V Vol Ctrl > 4.5V; Zload > 30K Vol Ctrl < 0.5V 1.6 TDA7496L ELECTRICAL CHARACTERISTICS (continued) Symbol eN Parameter Total Output Noise Test Condition f = 20Hz to 22KHz Play, max volume f = 20Hz to 22KHz Play, max attenuation f = 20Hz to 22KHz Mute Min. Typ. 500 100 60 5 22.5 2 35 55 8 30 30 39 65 150 160 3.5 1.5 3.5 0.6 65 80 -5 1 0.2 1.5 1 Max. 800 250 150 Unit V V V V/s K K dB dB C C V V V V mA dB A A A A A SR Ri RVar Out Rload Var Out SVR Slew Rate Input Resistance Variable Output Resistance Variable Output Load Supply Voltage Rejection 100 f = 1kHz; max volume CSVR = 470F; VRIP = 1Vrms f = 1kHz; max attenuation CSVR = 470F; VRIP =1Vrms TM Ts VST ON VST OFF VM ON VM OFF IqST-BY AMUTE IstbyBIAS Thermal Muting Thermal Shut-down Stand-by ON Threshold Stand-by OFF Threshold Mute ON Threshold Mute OFF Threshold Quiescent Current @ Stand-by Mute Attenuation Stand-by bias current MUTE STAND-BY & INPUT SELECTION FUNCTIONS 50 Stand by on VST-BY = 5V VMUTE = 5V Play or Mute Mute Play -20 ImuteBIAS Mute bias current 5 2 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 R1 R2 P1 C1 C2 C3 C4 C5 C6 C7 C8 C9 SUGGESTION VALUE 300K 10K 50K 1000F 470nF 470nF 470F 100nF 1000F 1F 1000F 100nF PURPOSE Volume control circuit Mute time constant Volume control circuit Supply voltage bypass Input DC decoupling Input DC decoupling Ripple rejection Volume control time costant Output DC decoupling Mute time costant Output DC decoupling Supply voltage bypass LARGER THAN SUGGESTION Larger volume regulation time Larger mute on/off time SMALLER THAN SUGGESTION Smaller volume regulation time Smaller mute on/off time Danger of oscillation Lower low frequency cutoff Lower low frequency cutoff Better SVR Larger volume regulation time Lower low frequency cutoff Larger mute on/off time Lower low frequency cutoff Higher low frequency cutoff Higher low frequency cutoff Worse SVR Smaller volume regulation time Higher low frequency cutoff Smaller mute on/off time Higher low frequency cutoff Danger of oscillation 3/10 TDA7496L Figure 1A. Application Circuit. +VS C1 1000F VAROUT_R PW_GND 1,2,3,13, 18,19,20 9 C2 470nF 30K 7 VOLUME + OP AMP S1 STBY 11 MUTE/STBY PROTECTIONS VOLUME INL C3 470nF 4 30K + OP AMP SVR C4 470F VOLUME 10 6 5 VAROUT_L VOL P1 50K LOG +5V D97AU598A C9 0.1F VS 15,16 INR 14 C8 1000F PW_GND OUTR +5V 12 60K 17 C7 1F R2 10K S_GND +5V S2 MUTE OUTL C6 1000F PW_GND C5 100nF R1 300K TP1 Figure 1B. PCB and Component Layout of the Fig. 1A (1.25:1 scale) 4/10 TDA7496L MUTE STAND-BY TRUTH TABLE MUTE H L H L ST-BY H H L L OPERATING CONDITION STANDBY STANDBY MUTE PLAY Turn ON/OFF Sequences (for optimizing the POP performances) A) USING MUTE AND STAND-BY FUNCTIONS VS (V) ST-BY pin#11 (V) 5 VSVR pin#10(V) 2.5V MUTE pin#12 (V) 5 INPUT (mV) VOUT (V) OFF STBY MUTE PLAY MUTE STBY OFF IQ (mA) D97AU683 B) USING ONLY THE MUTE FUNCTION To simplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transitions is recommend to respect the following conditions. - At the turn-on, the transition mute - play must be made when the SVR pin is higher than 2.5V - At the turn-off, the TDA7496L must be brought to mute from the play condition when the SVR pin is higher than 2.5V. 5/10 TDA7496L Quiescent current vs. Supply Voltage Output DC Voltage vs. Supply Voltage 34 32 30 28 26 24 22 20 18 Iq (mA) 10 9.5 9 Vodc (V) Vi=0 8.5 8 7.5 7 6.5 6 5.5 5 4.5 4 Vi=0 16 10 11 12 13 14 15 16 17 18 10 11 12 13 14 15 16 17 18 Supply Voltage (V) Supply Voltage (V) Output DC Offset vs. Supply Voltage Output Power vs. Supply Voltage 300 280 260 240 220 200 180 160 140 120 Vodc-Vsvr (V) 4 3.5 Ouput Power (W) THD=10 % Vi=0 3 2.5 2 1.5 Rl=8 Ohm F= 1 KHz THD=1 % 1 0.5 0 11 12 13 14 15 16 17 18 100 10 10 11 12 13 14 15 16 17 18 Supply Voltage (V) Supply Voltage (V) Distortion vs. Output Power Closed Loop gain vs. Frequency 10 Distortion (%) 32 31 30 29 28 27 26 25 Closed Loop Gain (dB) Vs=12V Rl=8 Ohm 1 F=15 KHz 0.1 24 23 22 21 0.6 0.8 1 1.2 1.4 1.6 1.8 2 20 0.02 0.2 2 Rl=8 Ohm Pout=0.5W Cin=470nF Cout =1000uF Csvr=470 uF F=1 KHz 0.01 0 0.2 0.4 20 Output Power (W) Frequency (KHz) 6/10 TDA7496L St-By Attenuation vs. Vpin 11 Mute Attenuation vs. Vpin 12 20 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 Stand-by Attenuation (dB) Rl=8 Ohm 0 dB @ Pout=1W 20 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 2 2.5 3 3.5 4 4.5 5 Mute Attenuation (dB) Rl=8 Ohm 0 dB @ Pout=1W 0 0.5 1 1.5 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 4.4 4.8 5.2 Vpin # 11 (V) Vpin # 12 (V) PIN DESCRIPTION PIN: SVR VS VS VS + 30K OUT L 20K SVR 20K 6K 1K 6K 1K 30K OUT R - 100A + D97AU585A 7/10 TDA7496L PINS: INL, INR VS PINS: VAROUT-L, VAROUT-R VS 6K INn 30K D97AU590 500A VAROUT-L D97AU589 SVR PIN: VOLUME PIN: MUTE VS 10A VOL VS MUTE 200 10K 50A D97AU592 D97AU591 PINS: PW-GND, S-GND PINS: OUT R, OUT L VS VS OUT GND D97AU593 D97AU588 PIN: STBY VS 10A STBY 200 65K D97AU594 8/10 TDA7496L POWERDIP20 PACKAGE MECHANICAL DATA DIM. MIN. a1 B b b1 D E e e3 F I L Z 3.30 1.27 8.80 2.54 22.86 7.10 5.10 0.130 0.050 0.38 0.51 0.85 0.50 0.50 24.80 0.346 0.100 0.900 0.280 0.201 0.015 1.40 mm TYP. MAX. MIN. 0.020 0.033 0.020 0.020 0.976 0.055 inch TYP. MAX. 9/10 TDA7496L Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1998 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 10/10 |
Price & Availability of TDA7496L |
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
[Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |