View TDA7495_133590.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TDA7495
11W+11W AMPLIFIER WITH DC VOLUME CONTROL
11+11W OUTPUT POWER RL = 8 @THD = 10% VCC = 28V 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 TDA7495 is a stereo 11+11W class AB BLOCK AND APPLICATION DIAGRAM
VAROUT_R PW_GND 2 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 7 VOLUME 60K 10 MUTE 9 STBY 10K 1F S2 MUTE 12 OUTL 1000F +5V S_GND VS 13 15 PW_GND
MULTIPOWER BI50II TECHNOLOGY
Multiwatt15 ORDERING NUMBER: TDA7495
power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. Features of the TDA7495 include linear volume control, Stand-by and mute functions.
INR
14
1000F OUTR
+5V
3
4 VAROUT_L +5V
100nF
300K
D96AU440B
February 1997
1/12
TDA7495
ABSOLUTE MAXIMUM RATINGS
Symbol VS VIN Ptot Tamb Tstg, Tj V3 DC Supply Voltage Maximum Input Voltage Total Power Dissipation (Tamb = 70C) Ambient Operating Temperature (1) Storage and Junction Temperature Volume CTRL DC voltage Parameter Value 35 8 20 -20 to 85 -40 to 150 7 Unit V Vpp W C C V
(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 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. = 2 35 Value Max. = 2.8 Unit C/W C/W
ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 20V; 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 THD = 10%; RL = 8; VS = 28V THD = 1%; RL = 8; VS = 28V THD = 10%; RL = 4; VCC = 20V THD = 1%; RL = 4; VCC = 20V THD = 10%; RL = 8; VCC = 18V THD = 1%; RL = 8; VCC = 18V 2/12 9.5 7.5 7 5 3.5 2.6 No Input Signal Test Condition Min. 11 70 -650 10 11 8 8 6 3.8 2.9 Typ. Max. 35 100 650 Unit V mA mV V W W W W W W
TDA7495
ELECTRICAL CHARACTERISTICS (continued)
Symbol THD Ipeak Vin GV GvLine AMin VOL BW eN 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 Rload Var Out SVR Slew Rate Input Resistance Variable Output Resistance Variable Output Load Supply Voltage Rejection f = 1kHz; max volume CSVR = 470F; VRIP = 1Vrms f = 1kHz; max attenuation CSVR = 470F; VRIP =1Vrms TM Ts VST-BY VMUTE IqST-BY AMUTE IstbyBIAS Thermal Muting Thermal Shut-down Stand-by threshold Mute Threshold Quiescent Current @ Stand-by Mute Attenuation Stand-by bias current Stand by on VST-BY = 5V VMUTE = 5V Play or Mute ImuteBIAS Mute bias current Mute Play -20 2.3 2.3 50 5 22.5 2 35 55 39 65 150 160 2.5 2.5 0.6 65 80 -5 1 0.2 5 2 2.7 2.7 1 Parameter Total Harmonic Distortion Output Peak Current Input Signal Closed Loop Gain Monitor Out Gain Attenuation at Minimum Volume Vol Ctrl > 4.5V Vol Ctrl > 4.5V; Zload > 30K Vol Ctrl < 0.5V 28.5 -1.5 80 0.6 500 100 60 8 30 30 100 800 250 150 30 0 Test Condition GV = 30dB; PO = 1W; f = 1KHz; (internally limited) 1.7 2.4 2.8 31.5 1.5 Min. Typ. Max. 0.4 Unit % A Vrms dB dB dB MHz V V V V/s K K dB dB C C V V mA dB A A A A A
MUTE STAND-BY & INPUT SELECTION FUNCTIONS
3/12
TDA7495
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 7 VOLUME 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
3
4 VAROUT_L VOL P1 50K LOG +5V
C5 100nF
R1 300K TP1
D96AU493B
Figure 1b: P.C.B. and Component Layout.
4/12
TDA7495
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 PURPOSE Volume control circuit Mute time constant Volume control circuit Supply voltage bypass Input DC decoupling Input DC decoupling Ripple rejection Volume control time costant Mute time costant Supply voltage bypass Lower low frequency cutoff Lower low frequency cutoff Better SVR Larger volume regulation time Larger 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 LARGER THAN SUGGESTION Larger volume regulation time Larger mute on/off time SMALLER THAN SUGGESTION Smaller volume regulation time Smaller mute on/off time
Output DC decoupling Lower low frequency cutoff Output DC decoupling Lower low frequency cutoff
TYPICAL CHARACTERISTICS: Refer to the application circuit of fig.1A Tamb = 25C; VS = 20V; RL = 8; F = 1KHz; RS = 50; unless otherwise specified. Figure 2: Output Power vs Supply Voltage
POUT (W) 16 14 RL=8 12 10 8 6 4 2 0 d=1% d=10%
D97AU559
Figure 3: Distortion vs Output Power
d (%)
D97AU560
VS=28V RL=8
1
f=15KHz
0.1
f=1KHz
0.01
11 15 19 23 27 31 VS(V)
0
2
4
6
8
POUT(W)
5/12
TDA7495
Figure 4: Output Power vs Supply Voltage
POUT (W) 14 12
RL=4
D97AU561
Figure 5: Distortion vs Output Power
d (%)
VS=20V RL=4
D97AU562
10 8
d=10%
1
f=15KHz
f=1KHz
d=1%
6 4 2 0 10 12 14 16 18 20 22 24 VS(V)
0.1
0.01 0 2 4 6 POUT(W)
Figure 6: gain vs Volume Control (pin #3)
Gain (dB) 30 20 10 0 -10 -20 -30 -40 -50 -60 -70 -80 0.0 1.0 2.0 3.0 4.0 Vpin#3(V) POUT=1W
D97AU563
Figure 7: Supply Voltage vs Frequency
SVR (dB) VRIP=1VRMS -20
D97AU564
-40
MAX VOLUME
-60 MAX ATTENUATION -80
-100 20 100 1K f(Hz)
Figure 8: Stand-by Attenuation vs Vpin #9
ATT (dB) 0 -20
0dB=1W
D97AU565
Figure 9: Mute Attenuation vs V pin #10
ATT (dB) 0 -20
0dB=1W
D97AU566
-40
-40
-60 -80 -100 -120 0 1 2 3 4 Vpin#9(V)
-60 -80 -100 0 1 2 3 4 Vpin#10(V)
6/12
TDA7495
Figure 10: Power dissipation vs Output Power
PDISS (W) 10 8 6 4 2 0 0.1 1 10 POUT(W)
RL=2 x 8 f=1KHz VS=28V
D97AU567
Figure 11: Power Dissipation vs Output Power
PDISS (W) 16
RL=2 x 4 f=1KHz VS=26V
D97AU568
12
VS=24V VS=20V
8
VS=18V VS=14V
4
0 0.1 1 10 POUT(W)
7/12
TDA7495
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) 28
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)
D96AU531A
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 we recommend to respect the following conditions:
- At the turn-on the transition mute to play must be made when the SVR pin is higher than 2.5V - At the turn-off the TDA7495 must be brought to mute from the play condition when the SVR pin is higher than 2.5V.
8/12
TDA7495
PINS: INL, INR
VS
PINS: VAROUT-L, VAROUT-R
VS
6K INn 30K
D97AU590
500A
VAROUT-L
D97AU589
SVR
PIN: VOLUME
PIN: MUTE
VS 10A VOL
VS MUTE 200 10K
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
9/12
TDA7495
PIN: SVR
VS
VS
VS
VS
1mA
+ 30K
OUT L
20K SVR 20K
6K
1K
6K
1K 30K OUT R -
100A
10/12
+
D97AU585
TDA7495
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
11/12
TDA7495
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 critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1997 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
12/12

▲Up To Search▲

Price & Availability of TDA7495

	To Download TDA7495 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .