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(R)
TDA7496S
5W+5W AMPLIFIER
5+5W OUTPUT POWER RL = 8 @THD = 10% VCC = 22V ST-BY AND MUTE FUNCTIONS LOW TURN-ON TURN-OFF POP NOISE 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 MULTIWATT 15 PACKAGE DESCRIPTION The TDA7496 is a stereo 5+5W class AB power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, TV applications.
MULTIPOWER BI50II TECHNOLOGY
Multiwatt15 ORDERING NUMBER: TDA7496
Features of the TDA7496 include mute functions.
Stand-by and
BLOCK AND APPLICATION DIAGRAM
VS 13 INR 470nF 1 30K + OP AMP S1 ST-BY S_GND 8 MUTE/STBY PROTECTIONS PW_GND 11 5 470nF 30K 60K 10 MUTE 9 STBY 10K 1F S2 MUTE INL + OP AMP SVR 470F
D99AU1015
14
1000F OUTR
+5V S_GND
+5V
12
OUTL 1000F
7
15
PW_GND
Jenuary 2000
1/10
TDA7496S
ABSOLUTE MAXIMUM RATINGS
Symbol VS VIN Ptot Tamb Tstg, Tj DC Supply Voltage Maximum Input Voltage Total Power Dissipation (Tamb = 80C) Ambient Operating Temperature Storage and Junction Temperature Parameter Value 35 8 15 0 to 70 -40 to 150 Unit V Vpp W C C
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 N.C. N.C. N.C. INR
D99AU1016
THERMAL DATA
Symbol Rth j-case Rth j-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient Typ. = 4 max 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 Vs = 22V THD = 10%; RL = 8; Vs = 22V THD = 1%; RL = 8; Vs = 22V THD = 10%; RL = 4; VCC = 12V THD = 1%; RL = 4; VCC = 12V GV = 30dB; PO = 1W; f = 1KHz; (internally limited)
5
THD Ipeak Vin GV 2/10
Total Harmonic Distortion Output Peak Current Input Signal Closed Loop Gain
TDA7496S
ELECTRICAL CHARACTERISTICS (continued)
Symbol BW eN Parameter Total Output Noise Test Condition f = 20Hz to 22KHz Play f = 20Hz to 22KHz Mute 5 22.5 35 Min. Typ. 0.6 60 60 8 30 39 150 160 3.5 1.5 3.5 0.6 65 80 -5 1 0.2 1.5 1 Max. 150 150 Unit MHz V V V/s K dB C C V V V V mA dB A A A A A
SR Ri SVR
Slew Rate Input Resistance Supply Voltage Rejection
f = 1kHz; CSVR = 470F; VRIP = 1Vrms
Thermal Muting TM Thermal Shut-down Ts MUTE STAND-BY & INPUT SELECTION FUNCTIONS VST-ON Stand-by ON threshold Stand-by OFF threshold VST-OFF Mute ON Threshold VM ON Mute OFF Threshold VM OFF Quiescent Current @ Stand-by IqST-BY Mute Attenuation AMUTE Stand-by bias current Stand by on VST-BY = 5V IstbyBIAS VMUTE = 5V Play or Mute Mute bias current Mute ImuteBIAS 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 R2 C1 C2 C3 C4 C6 C7 C8 C9 SUGGESTION PURPOSE VALUE 10K Mute time constant Supply voltage 1000F bypass 470nF Input DC decoupling 470nF Input DC decoupling 470F Ripple rejection 1000F Output DC decoupling 1F Mute time costant 1000F Output DC decoupling Supply voltage 100nF bypass LARGER THAN SUGGESTION Larger mute on/off time SMALLER THAN SUGGESTION Smaller mute on/off time Danger of oscillation Lower low frequency cutoff Lower low frequency cutoff Better SVR Lower low frequency cutoff Larger mute on/off time Lower low frequency cutoff Higher low frequency cutoff Higher low frequency cutoff Worse SVR Higher low frequency cutoff Smaller mute on/off time Higher low frequency cutoff Danger of oscillation
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TDA7496S
Figure 1a: Application Circuit.
+VS C1 1000F VS PW_GND 11 1 C2 470nF 30K + OP AMP 13 15 14 C8 1000F S1 STBY S_GND 8 MUTE/STBY PROTECTIONS 9 10 C7 1F + 30K OP AMP SVR C4 470F
D99AU1017
C9 0.1F PW_GND PW_GND OUTR
INR
+5V
R2 10K
S_GND +5V
INL C3 470nF
5
S2 MUTE OUTL
12 C6 1000F
PW_GND
7
Figure 1b: P.C.B. and Component Layout.
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TDA7496S
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
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
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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TDA7496S
Output DC Voltage vs. Supply Voltage
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 10
Quiescent Current vs. Supply Voltage
32 30
Iq (mA)
Vodc (V)
Vi=0
28 26 24 22 20 18 16 10
Vi=0
12
14
16
18
20
22
24
26
28
30
32
12
14
16
18
20
22
24
26
28
30
32
Supply Voltage (V)
Supply Voltage (V)
Output DC Offset vs. Supply Voltage
300 280 260 240 220 200 180 160 140 120 100 10 12 14 16 18 20 22 24 26 28 30 32
Output Power vs. Supply Voltage
10 9
Vodc-Vsvr (V)
Ouput Power (W)
Vi=0
8 7 6 5 4 3 2 1 0 10 12 14 16 18 20 22 24 26
Rl=8 Ohm F= 1 KHz
THD=10 %
THD=1 %
Supply Voltage (V)
Supply Voltage (V)
Output Power vs. Supply Voltage
Ouput Power (W)
Distortion vs. Output Power
Distortion (%)
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 10
10
Rl=4 Ohm F= 1 KHz
THD=10 %
1
Vs=22V Rl=8 Ohm
F=15 KHz
0.1
THD=1 %
F=1 KHz
10.5 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
Supply Voltage (V)
Output Power (W)
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TDA7496S
Distortion vs. Output Power
10
Closed Loop Gain vs. Frequency
Closed Loop Gain (dB)
Distortion (%)
32 31 30
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
Stand-by Attenuation (dB)
Mute Attenuation vs. Vpin 10
Mute Attenuation (dB)
20 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140
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
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
TDA7496S
PINS: INL, INR
VS
PIN: MUTE
VS
6K INn 30K
D97AU592
D97AU589
500A
MUTE
200
10K
50A
SVR
PINS: PW-GND, S-GND
PINS: OUT R, OUT L
VS
VS GND
D97AU593
OUT
D97AU588
PIN: STBY
VS
10A STBY 200
65K
D97AU594
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TDA7496S
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
OUTLINE AND MECHANICAL DATA
Multiwatt15 V
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TDA7496S
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. Specification 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 (c) 2000 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com
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