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TDA7496
5W+5W AMPLIFIER WITH DC VOLUME CONTROL
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 DESCRIPTION The TDA7496 is a stereo 5+5W class AB power BLOCK AND APPLICATION DIAGRAM
VAROUT_R PW_GND 11 1 470nF 30K VOLUME + OP AMP S1 ST-BY S_GND 8 MUTE/STBY PROTECTIONS VOLUME INL 470nF 5 30K + OP AMP SVR 470F VOLUME 7 3 4 VAROUT_L +5V 60K 10 MUTE 9 STBY 10K 1F S2 MUTE 12 OUTL 1000F +5V S_GND 2 VS 13 15 1000F OUTR PW_GND
MULTIPOWER BI50II TECHNOLOGY
Multiwatt15 ORDERING NUMBER: TDA7496
amplifier assembled in 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.
INR
14
+5V
100nF
300K
D96AU440D
April 1998
1/10
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 Storage and Junction Temperature Volume CTRL 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 Typ. = 4 35 Value Max. = 4.6 Unit C/W C/W
ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 22V; RL = 8, Rg = 50, Tamb = 25C).
Symbol VS Iq DCVOS VO PO Parameter Supply Voltage Range Total Quiescent Current Output DC Offset Referred to SVR Potenial Quiescent Output Voltage Output Power Test Condition Min. 10 Typ. 25 200 11 5.5 4 2.1 1.0 0.4 1 28.5 1.3 30 2.8 31.5 Max. 32 50 Unit V mA mV V W W W W % A Vrms dB
No Input Signal
THD Ipeak Vin GV 2/10
Total Harmonic Distortion Output Peak Current Input Signal Closed Loop Gain
THD = 10%; RL = 8; THD = 1%; R L = 8; THD = 10%; RL = 4; VCC = 12V THD = 1%; R L = 4; VCC = 12V GV = 30dB; PO = 1W; f = 1KHz; (internally limited) Vol Ctrl > 4.5V
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TDA7496
ELECTRICAL CHARACTERISTICS (continued)
Symbol GvLine AMin VOL BW eN Parameter Monitor Out Gain Attenuation at Minimum Volume Total Output Noise Test Condition Vol Ctrl > 4.5V; Zload > 30K Vol Ctrl < 0.5V f = 20Hz to 22KHz Play, max volume f = 20Hz to 22KHz Play, max attenuation f = 20Hz to 22KHz Mute 5 22.5 2 35 55 Min. -1.5 80 Typ. 0 0.6 500 100 60 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. 1.5 Unit dB dB MHz V V V V/s K K dB dB C C V V V V mA dB A A A A A
800 250 150
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 C SVR = 470F; VRIP = 1Vrms f = 1kHz; max attenuation C SVR = 470F; VRIP =1Vrms
Thermal Muting TM Ts Thermal Shut-down MUTE STAND-BY & INPUT SELECTION FUNCTIONS VST-ON Stand-by ON threshold VST-OFF Stand-by OFF threshold VM ON Mute ON Threshold VM OFF Mute OFF Threshold IqST-BY Quiescent Current @ Stand-by AMUTE Mute Attenuation IstbyBIAS Stand-by bias current Stand by on VST-BY = 5V VMUTE = 5V Play or Mute ImuteBIAS Mute bias current Mute Play
50
-20
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 LARGER THAN SUGGESTION Larger volume regulation Volume control circuit time Mute time constant Larger mute on/off time Volume control circuit Supply voltage bypass Input DC decoupling Lower low frequency cutoff Input DC decoupling Lower low frequency cutoff Ripple rejection Better SVR Volume control time Larger volume regulation costant time Output DC decoupling Lower low frequency cutoff Mute time costant Larger mute on/off time Output DC decoupling Lower low frequency cutoff Supply voltage bypass PURPOSE SMALLER THAN SUGGESTION Smaller volume regulation time Smaller mute on/off time Danger of oscillation 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
TDA7496
Figure 1a: Application Circuit.
+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
Figure 1b: P.C.B. and Component Layout.
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TDA7496
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#9 (V) 5
V SVR pin#7(V)
2.5V MUTE pin#10 (V) 5
INPUT (mV)
VOUT (V)
OFF
STBY MUTE
PLAY
MUTE STBY
OFF
IQ (mA)
D97AU684
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 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 TDA7496 must be brought to mute from the play condition when the SVR pin is higher than 2.5V.
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TDA7496
Output DC Voltage vs. Supply Voltage
Quiescent Current vs. Supply Voltage
32 30
Iq (mA)
Vi=0
28 26 24 22 20 18 16 10 12 14 16 18 20 22 24 26 28 30 32
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4
Vodc (V)
Vi=0
10
12
14
16
18
20
22
24
26
28
30
32
Suppl y Voltage (V)
Supply Voltage (V)
Output DC Offset vs. Supply Voltage
Output Power vs. Supply Voltage
300 280 260 240 220 200 180 160 140 120 100
Vodc-Vsvr (V)
10 9
Ouput Power (W)
Vi=0
8 7 6 5 4 3 2 1
Rl=8 Ohm F= 1 KHz
THD=10 %
THD=1 %
10
12
14
16
18
20
22
24
26
28
30
32
0
10
12
14
16
18
20
22
24
26
Suppl y Voltage (V)
Supply Voltage (V)
Output Power vs. Supply Voltage
Distortion vs. Output Power
3.6 3.4 3.2 3 2.8 2.6 2.4 2.2 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0
Ouput Power (W)
10
Distor tion (%)
Rl=4 Ohm F= 1 KHz
THD=10 %
1
Vs=22V Rl=8 Ohm
F=15 KHz
0.1
THD=1 % F=1 KHz
10 10.5 11 11.5 12 12.5 13 13.5 14 0.01 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Suppl y Voltage (V)
Output Power (W)
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TDA7496
Distortion vs. Output Power
Distor tion (%)
32 31 30
Closed Loop Gain vs. Frequency
10
Closed Loop Gain (dB)
F=15 KHz
1
29 28 27
Vs=12V Rl=4 Ohm
0.1
26 25 24 23 22 21 20 0.02
Rl=8 Ohm Pout=0.5W Cin=470nF Cout =1000uF Csvr=470 uF
F=1 KHz
0.01
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1
0.2
2
20
Output Power (W)
Frequency (KHz)
St-By Attenuation vs. Vpin 9
Mute Attenuation vs. Vpin 10
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 # 9 (V)
Vpin # 10 (V)
PINS DESCRIPTION PIN: SVR
VS VS VS
+ 30K
OUT L
20K SVR 20K
6K
1K
6K
1K 30K + OUT R
100A
D97AU585A
7/10
TDA7496
PINS: INL, INR
VS
PINS: VAROUT-L, VAROUT-R
VS
6K INn 30K
D97AU590
500A
VAROUT-L
D97AU589
SVR
PIN: VOLUME
PIN: MUTE
VS
VS MUTE 200 10K
10A VOL
50A
D97AU592
D97AU591
PINS: PW-GND, S-GND
PINS: OUT R, OUT L
VS
VS GND
D97AU593
OUT
D97AU588
PIN: STBY
VS
10A STBY 200
65K
D97AU594
8/10
TDA7496
MULTIWATT15 PACKAGE MECHANICAL DATA
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 4.55 5.08 17.5 10.7 22.2 22.1 0.49 0.66 1.02 17.53 19.6 20.2 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 0.179 0.200 0.689 0.421 0.874 0.870 1.27 17.78 1 0.55 0.75 1.52 18.03 0.019 0.026 0.040 0.690 0.772 0.795 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.218 0.102 0.102 0.152 0.050 0.700 mm TYP. MAX. 5 2.65 1.6 0.039 0.022 0.030 0.060 0.710 MIN. inch TYP. MAX. 0.197 0.104 0.063
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TDA7496
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 criticalcomponents in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1998SGS-THOMSON Microelectronics- PrintedinItaly -AllRightsReserved SGS-THOMSONMicroelectronicsGROUP OFCOMPANIES Australia - Brazil- Canada - China - France - Germany - Italy - Japan - Korea- Malaysia - Malta - Morocco - The NetherlandsSingapore - Spain - Sweden - Switzerland - Taiwan - Thailand - UnitedKingdom - U.S.A.
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