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TDA7497S
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8W+8W+15W TRIPLE AMPLIFIER
s s s s s s s s s s
8+8W (RL = 8Ω) + 15W ( RL = 4Ω) OUTPUT POWER @THD = 10%, Vcc = 25V 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: TDA7497S
DESCRIPTION The TDA7497S is a triple 8+8+15W class AB power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. BLOCK DIAGRAM
VS_C PW_GND C1 INR 470nF S_GND 8 2 11 1 13 VS +VS C11 0.1µF C10 0.1µF C9 1000µF
Features of the TDA7497S include mute functions, independently controller for main and center channels.
+ 30K OP AMP
14
C8 1000µF OUTR C12 1µF 10K R2 MUTE2 10K R1 C7 1µF
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 1000µF
C3 INC 470nF C4 470µF
6
+ 30K OP AMP
3
OUTC
C5
SVR
7
1000µF 15 PW_GND
D98AU961B
April 2003
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TDA7497S
ABSOLUTE MAXIMUM RATINGS
Symbol
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Parameter DC Supply Voltage Total Power Dissipation (Tamb = 70°C) Ambient Operating Temperature (1) Storage and Junction Temperature
Value 35 20 0 to 70 -40 to 150
Unit V W °C °C
VS
Ptot Tamb Tstg, Tj
(1) Operation between -20 to 85 °C guaranteed by correlation with 0 to 70°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 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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ELECTRICAL CHARACTERISTCS (Refer to the test circuit VS = 25V; Rg = 50Ω, Tamb = 25°C)
Symbol Parameter Test Condition Min. 11 60 11.5 THD = 10%; RL = 8Ω; THD = 1%; RL = 8Ω; THD = 10%; RL = 4Ω THD = 1%; RL = 4Ω PO = 1W; f = 1KHz; (internally limited) (internally limited) 28.5 -1 0.6 Total Output Noise Slew Rate Input Resistance Supply Voltage Rejection Thermal Muting Thermal Shut-down f = 1kHz CSVR = 470µF; VRIP = 1Vrms f = 20Hz to 22KHz 5 22.5 50 60 8 30 60 150 160 150 2.0 2.5 29.5 30.5 1 6 5 12 10 12.5 8 6 15 12 0.4 Typ. Max. 30 100 13.5 Unit V mA V W W W W % A A dB dB MHz µV V/µs KΩ dB °C °C
VS Supply Voltage Range www.datasheet4u.com Iq VO PO_L/R PO_C THD Ipeak L/R Ipeak C GV ∆GV BW eN SR Ri SVR TM Ts Total Quiescent Current Quiescent Output Voltage Output Power Left / RightChannels Output Power Center Channel Total Harmonic Distortion Output Peak Current Output Peak Current Central Channel Closed Loop Gain L/R Voltage GainMatching
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 µA µA
ImuteBIAS Mute bias current Mute1/Mute2
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Figure 1. PC Boar and Component Layout
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TDA7497S
Figure 2. Output Power vs Supply Voltage
W
Figure 4. THD+N vs Output Power
T.H.D. (% )
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8 6 4
TDA7497 Rl = 80hm f = 1KHz
10 5
THD=10%
2 1 0.5
TDA7497 Vcc=26Vdc Rl = 8ohm f = 1KHz
THD=1%
0.2 0.1 0.05
2 0 +10
+12
+14
+16
+18 Vdc
+20
+22
+24 +25
0.02 0.01 60m 100m 200m 500m 1 2 5 10
Pout vs Vcc : RL=8ohm, F=1KHz (filter 22Hz-22KHz), THD= 1%, 10%, channels L/R/C
Figure 3. Frequency Response
Amp. (dB)
Figure 5. Pdiss vs Output Power
Pdiss. (W)helv
16 15
TDA7497 Vcc=25 Vdc Rl = 8ohm 0dB = 1W
+5l +4 +3 +2 +1 +0 -1 -2 -3 -4 -5
14 13 12 11 10
TDA7497 Vcc = 26V Right/Left/Center= 8 ohm X axis is 3X Pout
20
50
100
200
500
1k
2k
5k
10k
20k
50k 100k
9 0 5 10 15
Pout. (W)
Frequency ( Hz )
20
25
30
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DIM. MIN. A www.datasheet4u.com 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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TDA7497S
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