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TDA7496
5W+5W AMPLIFIER WITH DC VOLUME CONTROL
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5+5W OUTPUT POWER RL = 8 @THD = 10% VCC = 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
MULTIPOWER BI50II TECHNOLOGY
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s s s s s s s s
Multiwatt 15 ORDERING NUMBER: TDA7496
plifier assembled i the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. Features of the TDA7496 include linear volume control Stand-by and Mute functions. The TDA7496 is pin to pin compatible with TDA7496S, TDA7496SA, TDA7495, TDA7495SA, TDA7494S, TDA7494SA.
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DESCRIPTION The TDA7496 is a stereo 5+5W class AB power amBLOCK DIAGRAM
VAROUT_R PW_GND 2 11 1 470nF 30K VOLUME + OP AMP VS 13
15
PW_GND
INR
14
1000F OUTR S1 ST-BY
S_GND
8 MUTE/STBY PROTECTIONS VOLUME 60K
9
STBY 10K
+5V S_GND
10
MUTE
1F S2 MUTE
+5V
INL 470nF
5 30K
+ OP AMP
12
OUTL 1000F
SVR 470F
7 3 VOLUME 4 VAROUT_L +5V
100nF
300K
D96AU440D
September 2003
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TDA7496
ABSOLUTE MAXIMUM RATINGS
Symbol VS VIN Ptot Tamb Tstg,TJ V3 DC Supply Voltage Maximum Input Voltage Total Power Dissipation (Tamb = 80C) Ambient Operating Temperature (1) Storage and Junction Temperature Volume Control DC Voltage Parameter Value 35 8 15 0 to 70 -40 to 150 7 Unit V Vpp W C C V
PIN CONNECTION (top view)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 PW_GND OUTR VS OUTL PW_GND MUTE STBY S_GND SVR N.C. INL VAROUT_L VOLUME VAROUT_R INR
D96AU441B
THERMAL DATA
Symbol Rth j-case Rth j-amb Parameter Thermal Resistance junction-case Thermal Resistance junction-ambient Max. Value Typ. = 4; Max. = 4.6 35 Unit C/W C/W
ELECTRICAL CHARACTERISTCS (Refer to the test circuit Vs = 22V; RL = 8, Rg = 50, Tamb = 25C)
Symbol Parameter Supply Voltage Range Total Quiescent Current Output DC Offset Referred to SVR No Input Signal Potential Quiescent Output Voltage Output Power THD = 10%; RL = 8; THD = 1%; RL = 8; THD = 10%; RL = 4; VS = 12V THD = 1%; RL = 4; VS = 12V 5 Test Condition Min. 10 25 200 11 5.5 4 2.1 1.0 0.4 Typ. Max. 32 50 Unit V mA mV
Vs
Iq DCVos
VO PO
V
W W
THD
Total Harmonic Distortion
Gv = 30dB; PO = 1W; f = 1KHz
%
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TDA7496
ELECTRICAL CHARACTERISTCS (continued) (Refer to the test circuit Vs = 22V; RL = 8, Rg = 50, Tamb = 25C)
Symbol Parameter Output Peak Current Input Signal Closed Loop Gain Monitor Out Gain VOl Ctrl >4.5V VOl Ctrl >4.5V; Zload >30K VOl Ctrl <0.5V 28.5 -1.5 80 0.6 Total Output Noise f = 20Hz to 22KHz PLAY, max volume f = 20Hz to 22KHz PLAY, max attenuation f = 20Hz to 22KHz MUTE SR Ri RVar Out Slew Rate Input Resistance Variable Output Resistance 2 f = 1KHz; max volume CSVR = 470F; VRIP = 1Vrms f = 1KHz; max attenuation CSVR = 470F; VRIP = 1Vrms TM TS Thermal Muting Thermal Shut-down 35 55 39 65 150 160 5 22.5 500 100 60 8 30 30 100 800 250 150 30 0 Test Condition (internally limited) Min. 1.0 Typ. 1.3 2.8 31.5 1.5 Max. Unit A Vrms dB dB dB MHz V V V V/s K K dB dB C C
Ipeak
VIN GV GVLine
AMin VOL Attenuation at Minimum Volume BW eN
RL Var Out Variable Output Load SVR Supply Voltage Rejection
MUTE & INPUT SELECTION FUNCTIONS VST-ON VST-OFF Stand-by ON Threshold Stand-by OFF Threshold 3.5 1.5 50 65 0.6 Stand by ON: VST-BY = 5V; Vmute = 5V Play or Mute ImuteBIAS Mute Bias Current Mute Play -20 80 -5 1 0.2 5 2 1 3.5 1.5 V V V V dB mA A A A A
VMUTEON Mute ON threshold VMUTEOFF Mute OFF threshold AMUTE IqST-BY IstbyBIAS Mute Attenuation Quiescent Current @ Stand-by Stand-by bias current
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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.
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 constant Output DC decoupling Mute time constant Output DC decoupling Supply voltage bypass Danger of oscillation Lower low frequency cutoff Higher low frequency cutoff Lower low frequency cutoff Higher low frequency cutoff Better SVR Larger volume regulation time Worse SVR Smaller volume regulation time LARGER THAN SUGGESTION Larger volume regulation time Larger mute on/off time SMALLER THAN SUGGESTION Smaller volume regulation time Smaller mute on/off time
Lower low frequency cutoff Higher low frequency cutoff Larger mute on/off time Smaller mute on/off time
Lower low frequency cutoff Higher low frequency cutoff Danger of oscillation
Figure 1. Application Circui
+VS C1 1000F VAROUT_R PW_GND 2 11 1 C2 470nF 30K VOLUME + OP AMP S1 STBY S_GND 8 MUTE/STBY PROTECTIONS VOLUME INL C3 470nF 5 30K + OP AMP SVR C4 470F VOLUME 7 3 4 VAROUT_L R1 300K TP1 VOL P1 50K LOG +5V 12 C6 1000F 9 10 C7 1F OUTL PW_GND R2 10K +5V 13 15 VS PW_GND C9 0.1F
INR
14
C8 1000F
PW_GND OUTR
S_GND +5V
S2 MUTE
C5 100nF
D96AU493D
4/11
TDA7496
MUTE STAND-BY TRUTH TABLE
MUTE H L H L St-BY H H L L OPERATING CONDITION STAND-BY STAND-BY MUTE 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. During the ON/OFF transitions is recommended to respect the following conditions: - At the turn-on the transition mute to mute - play must be made when the SVR pin is higher than 2.5V - At the turn-off the TDA7496 must be brought to mute from the play condition when the SVR pin is higher than 2.5V.
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TDA7496
Figure 2. P.C.B. and Component layoutPCB and Component Layout
Figure 3.
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TDA7496
Figure 4. Quiescent Current vs. Supply Voltage
Iq (mA) 30 28 26 24 22 20 18 16 10 12 14 16 18 20 22 24 26 Supply Voltage (V) 28 30 32 Vi=0
Figure 7. Output DC Offset vs. Supply Voltage
Vodc-Vsvr (V) 280 260 240 220 200 180 160 140 120 100 10 12 14 16 18 20 22 24 Supply Voltage (V) 26 28 30 32
D03AU1494
D03AU1496
Vi=0
Figure 5. Output Dc Offset vs. Supply Voltage
Vodc (V) 16 15 14 13 12 11 10 9 8 7 6 5 4 Vi=0
Figure 8. Output Power vs Supply Voltage
Output Power (W) 3.2 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0 THD=1% Rl=4 F=1KHz THD=10%
D03AU1498
D03AU1495
10
12
14
16
18 20 22 24 Supply Voltage (V)
26
28
30
32
10
10.5
11
11.5 12 12.5 Supply Voltage (V)
13
13.5
14
Figure 6. Output Power vs. Supply Voltage
Figure 9. Distortion vs Output Power
Output Power (W) 8 7 6 5 4 3 2 1 0 10 12 14 16 18 20 Supply Voltage (V) 22 Rl=8 F=1KHz THD=10%
D03AU1497
Distortion (%) Vs=22V Rl=8
D03AU1499
1
F=15KHz 0.1
THD=1%
F=1KHz
24
26
0.01
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Output Power (W)
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TDA7496
Figure 10. Distortion vs Output Power
Distortion (%)
D03AU1500
Figure 13. Mute Attenuation vs Vpin 10
Mute Attenuation (dB) 0
D03AU1503
1
F=15KHz Vs=12V Rl=4 F=1KHz
-20 -40 -60 -80 -100 -120
Rl=8 0dB @ Pout=1W
0.1
0.01
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Output Power (W)
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)
Figure 11. Closed Loop Gain vs. Frequency
Closed loop Gain (dB) 30 28 26 24 22 20 0.02 0.2 2 Frequency (KHz) 20
D03AU1501
PINS DESCRIPTION Figure 14. PIN SVR
VS VS VS
Rl=8 Pout=0.5W Cin=470nF Cout=1000F Csvr=470F
SVR
+ 30K
OUT L
20K
6K
1K
20K
6K
1K 30K OUT R -
100A
Figure 12. St-By Attenuation vs Vpin 9
St-by Attenuation (dB) 0 -20 -40 -60 -80 -100 -120 -140 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Vpin # 9 (V) 4.0 4.5 5.0
D97AU589
Figure 15. PINS: INL,INR
D03AU1502
VS
Rl=8 0dB @ Pout=1W
6K INn 30K
SVR
8/11
+
D97AU585A
500A
TDA7496
Figure 17. PIN ST-BY
VS
Figure 20. PINS: VAROUT-L VAROUT-R
VS
10A
STBY
200
VAROUT-L
65K
D97AU594
D97AU590
Figure 18. PIN: MUTE Figure 21. PIN: VOLUME
VS MUTE 200 10K
VS 10A VOL
50A
D97AU592
Figure 19. PINS: OUT R, OUT L
D97AU591
VS
Figure 22. PINS: PW-GND, S-GND
OUT
VS GND
D97AU593
D97AU588
9/11
TDA7496
DIM. MIN. A B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia1 21.9 21.7 17.65 17.25 10.3 2.65 4.25 4.63 1.9 1.9 3.65 0.49 0.66 1.02 17.53 19.6
mm TYP. MAX. 5 2.65 1.6 1 0.55 0.75 1.27 17.78 1.52 18.03 20.2 22.2 22.1 17.5 10.7 4.55 5.08 22.5 22.5 18.1 17.75 10.9 2.9 4.85 5.53 2.6 2.6 3.85 0.862 0.854 0.695 0.679 0.406 0.104 0.167 0.182 0.075 0.075 0.144 0.019 0.026 0.040 0.690 0.772 MIN.
inch TYP. MAX. 0.197 0.104 0.063 0.039 0.022 0.030 0.050 0.700 0.060 0.710 0.795 0.874 0.870 0.689 0.421 0.179 0.200 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.218 0.102 0.102 0.152
OUTLINE AND MECHANICAL DATA
Multiwatt15 V
10/11
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. 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 (c) 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
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