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PDF TDA7496SA Data sheet ( Hoja de datos )
| Número de pieza | TDA7496SA | |
| Descripción | 5W+5W AMPLIFIER WITH DC VOLUME CONTROL | |
| Fabricantes | ST Microelectronics | |
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TDA7496SA
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.
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MUTE STAND-BY TRUTH TABLE
MUTE
St-BY
HH
LH
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.
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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.
A thermal 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
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| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet TDA7496SA.PDF ] | |
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