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TDA7497
10W+10W+10W/18W TRIPLE AMPLIFIER
s
s s s s s s s s s
10+10W (RL = 8) + 18W ( RL = 4) or 10+10+10W ( RL = 8) OUTPUT POWER @THD = 10%, Vcc = 26V INDEPENDENT MUTE FOR CENTER CHANNEL AND MAIN CHANNELS NO TURN-ON TURN-OFF POP NOISE NO BOUCHEROT CELL SINGLE SUPPLY RANGING UP TO 35V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING MULTIWATT 15 PACKAGE
MULTIPOWER BI50II TECHNOLOGY
Multiwatt15 ORDERING NUMBER: TDA7497
DESCRIPTION The TDA7497 is a triple 10+10+10/18W class AB power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, BLOCK DIAGRAM
+VS 2 11 1 13 VS C11 0.1F C10 0.1F C9 1000F
TV applications. Features of the TDA7497 include mute functions, independently controller for main and center channels.
VS_C PW_GND C1 INR 470nF S_GND 8
+ 30K OP AMP
14
C8 1000F OUTR C12 1F 10K R2 MUTE2 10K R1 C7 1F
S1 MUTE2 (CENTER)
9 PW_GND_C 4 MUTE PROTECTIONS 60K C2 INL 470nF 5 10
+5V
S_GND
MUTE1
+5V S2 MUTE1 (L/R)
+ 30K OP AMP
12
OUTL C6 1000F
C3 INC 470nF C4
6
+ 30K OP AMP
3
OUTC
C5
SVR
7
1000F 15 PW_GND
470F
D98AU961B
January 2003
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TDA7497
ABSOLUTE MAXIMUM RATINGS
Symbol VS Ptot Tamb Tstg, Tj DC Supply Voltage Total Power Dissipation (Tamb = 70C) Ambient Operating Temperature (1) Storage and Junction Temperature Parameter Value 35 20 0 to 70 -40 to 150 Unit V W C C
(1) Operation between -20 to 85 C guaranteed by correlation with 0 to 70C.
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 MUTE1 (L/R) MUTE2 (CENTER) S_GND SVR INC INL PW_GND_C OUTC VS_C INR
D98AU962A
THERMAL DATA
Symbol Rth j-case Rth j-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient Value Typ.=1.3 max = 1.9 max = 35 Unit C/W C/W
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TDA7497
ELECTRICAL CHARACTERISTCS (Refer to the test circuit VS = 26V; RL = 8, f =1KHz, Rg = 50, Tamb =25C)
Symbol VS Iq VO PO_L/R Parameter Supply Voltage Range Total Quiescent Current Quiescent Output Voltage Output Power Left / RightChannels THD = THD = THD = THD = THD = THD = THD = THD = THD = THD = 10% 1%; 10%; RL = 4; Vs = 20V 1%; RL = 4; Vs = 20V 10%; RL = 8; Vs = 18V 1%; RL = 8; Vs = 18V 10% 1% 10%; RL = 4 1%; RL = 4 12 8 6 7 5 3.5 2.2 8 6 15 11 Test Condition Min. 11 60 13 10 7.5 8 6 3.8 2.9 10 7.5 18 14 0.4 2.4 2.8 28.5 -1 0.6 Total Output Noise Slew Rate Input Resistance Supply Voltage Rejection Thermal Muting Thermal Shut-down f = 1kHz CSVR = 470F; VRIP = 1Vrms f = 20Hz to 22KHz 5 22.5 50 60 8 30 60 150 160 150 29.5 30.5 1 Typ. Max. 32 100 14 Unit V mA V W W W W W W W W W W % A A dB dB MHz V V/s K dB C C
PO_C
Output Power Center Channel
THD Ipeak L/R Ipeak C GV GV BW eN SR Ri SVR TM Ts
Total Harmonic Distortion Output Peak Current Output Peak Current Central Channel Closed Loop Gain L/R Voltage GainMatching
PO = 1W; f = 1KHz; (internally limited) (internally limited)
MUTE & INPUT SELECTION FUNCTIONS
VMUTE1 Mute 1 ON threshold (L/R) Mute 1 OFF threshold (L/R) VMUTE2 Mute 2 ON Threshold (center) Mute 2 OFF Threshold (center) AMUTE Mute Attenuation Mute Play 50 65 1 0.2 5 2 3.5 1.5 3.5 1.5 V V V V dB A A
ImuteBIAS Mute bias current Mute1/Mute2
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Figure 1. PC Boar and Component Layout
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TDA7497
Figure 2. Output Power vs Supply Voltage (L/R)
W 12
Figure 5. THD+N vs Output Power
T.H.D. (%) 10 5
10
TDA7497 Rl = 4 Ohm f = 1KHz
THD=10%
2 1 0.5 0.2 TDA7497 Vcc=20 Vdc Rl = 4 Ohm f = 1KHz
8
6
4
THD=1%
0.1 0.05
2
0.02
0 +12 +14 +16 Vdc +18 +20
0.01 100m
200m
500m
1 Pout (W)
2
5
10
Figure 3. Output Power vs Supply Voltage
W 10 Pout vs Vcc : RL=8 Ohm, F=1KHz (filter 22Hz-22KHz), THD= 1%, 10%, channels L/R/C
Figure 6. THD+N vs Output Power
T.H.D. (%) 10 5 2
8 TDA7497 Rl = 8 Ohm f = 1KHz THD=10%
1 0.5 0.2
6
TDA7497 Vcc=26Vdc Rl = 8 Ohm f = 1KHz
4 THD=1% 2
0.1 0.05 0.02
0 +10 +12 +14 +16 +18 Vdc +20 +22 +24 +26
0.01 60m 100m 200m 500m Pout (W) 1 2 5 10
Figure 4. Frequency Response
Amp. (dB) +5 +4 +3 +2 +1 +0 -1 -2 -3 -4 -5 TDA7497 Vcc=26Vdc Rl = 8 Ohm 0dB = 1W
Figure 7. Pdiss vs Output Power
Pdiss. (W)
16 15 14 13
12 11 10 9 0 5 10
TDA7497 Vcc = 26V Right/Left/Center= 8 Ohm X axis is 3X Pout
20
50
100 200
500 1k 2k 5k Frequency ( Hz )
10k 20k
50k100k
15
20
25
30
Pout. (W)
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TDA7497
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
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TDA7497
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 2003 STMicroelectronics - All Rights Reserved Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com
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