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PDF TDA7494SA Data sheet ( Hoja de datos )
| Número de pieza | TDA7494SA | |
| Descripción | AMPLIFIER | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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TDA7496SA
www.datasheet4u.com
5W+5W AMPLIFIER WITH DC VOLUME CONTROL
s 5+5W OUTPUT POWER
RL = 8Ω @THD = 10% VCC = 22V
s ST-BY AND MUTE FUNCTIONS
s LOW TURN-ON TURN-OFF POP NOISE
s LINEAR VOLUME CONTROL DC COUPLED
WITH POWER OP. AMP.
s NO BOUCHEROT CELL
s NO ST_BY RC INPUT NETWORK
s SINGLE SUPPLY RANGING UP TO 35V
s SHORT CIRCUIT PROTECTION
s THERMAL OVERLOAD PROTECTION
s INTERNALLY FIXED GAIN
s SOFT CLIPPING
s VARIABLE OUTPUT AFTER VOLUME
CONTROL CIRCUIT
s CLIPWATT 15 PACKAGE
DESCRIPTION
The TDA7496SA is a stereo 5+5W class AB power
PRODUCT PREVIEW
MULTIPOWER BI50II TECHNOLOGY
Clipwatt 15
ORDERING NUMBER: TDA7496SA
amplifier assembled i the @Clipwatt 15 package,
specially designed for high quality sound TV applica-
tions.
Features of the TDA7496SA include linear volume
control Stand-by and Mute functions.
The TDA7496SA is pin to pin compatible with
TDA7496, TDA7496S, TDA7496SA, TDA7495,
TDA7495SA, TDA7494S, TDA7494SA.
BLOCK DIAGRAM
PW_GND
11
INR
470nF
1
30K
VAROUT_R
2
VS
13
VOLUME
+
-
OP AMP
S_GND
8
MUTE/STBY
PROTECTIONS
INL
470nF
5
470µF
SVR 7
VOLUME
30K
VOLUME
3
+
-
OP AMP
4
VAROUT_L
+5V
100nF
300K
PW_GND
15
1000µF
14
OUTR
9 STBY
10K
10 MUTE
60K 1µF
12 OUTL
1000µF
D96AU440D
S1 ST-BY
+5V
S_GND
+5V
S2 MUTE
September 2003
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/13
1 page  
MUTE STAND-BY TRUTH TABLE
MUTE
St-BY
www.datasheet4u.com
H
L
H
H
HL
LL
Turn ON/OFF Sequences (for optimizing the POP performances)
Figure 1. USING ONLY THE MUTE FUNCTION
VS (V)
ST-BY
pin#9 (V)
5
VSVR
pin#7(V)
2.5V
MUTE
pin#10 (V)
5
INPUT
(mV)
VOUT
(V)
TDA7496SA
OPERATING CONDITION
STAND-BY
STAND-BY
MUTE
PLAY
IQ
(mA)
OFF STBY MUTE
PLAY
MUTE STBY OFF
D97AU684
USING ONLY THE MUTE FUNCTION
To semplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transi-
tions is recommended to respect the following conditions:
– At the turn-on the transition mute to mute - play must be made when the SVR pin is higher than 2.5V
– At the turn-off the TDA7496A must be brought to mute from the play condition when the SVR pin is
higher than 2.5V.
5/13
5 Page 
TDA7496SA
Clipwatt Assembling Suggestions
The suggested mounting method of Clipwatt on external heat sink, requires the use of a clip placed as much
as possible in the plastic body center, as indicated in the example of figure 24.
www.datasAhetehte4urm.coaml grease can be used in order to reduce the additional thermal resistance of the contact between pack-
age and heatsink.
A pressing force of 7 - 10 Kg gives a good contact and the clip must be designed in order to avoid a maximum
contact pressure of 15 Kg/mm2 between it and the plastic body case.
As example , if a 15Kg force is applied by the clip on the package , the clip must have a contact area of 1mm2
at least.
Figure 24. Example of right placement of the clip
11/13
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet TDA7494SA.PDF ] | |
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