Obsolete Product(s) - Obsolete Product(s)
0 1 2 3 4 Vpin#9(V)
-140
-120
-100
-80
-60
-40
-20
0
ATT
(dB)
D96AU527
0dB=1W
Figure 11:
Stand-by Attenuation vs Vpin # 9
01234Vpin#10(V)
-100
-80
-60
-40
-20
0
ATT
(dB)
D96AU528
0dB=1W
Figure 12:
Mute Atttenuation vs Vpin # 10
0.1 1 10 P
OUT
(W)
0
2
4
6
8
P
DISS
(W)
D96AU529
V
S
=21V
V
S
=28V
R
L
=8
V
S
=35V
Figure 13:
Power Dissipation vs Output Power
0.1 1 10 P
OUT
(W)
0
2
4
6
8
P
DISS
(W)
D96AU530
V
S
=18V
V
S
=21V
R
L
=4
Figure 14:
Power Dissipation vs Output Power
TDA7494S
7/12
Obsolete Product(s) - Obsolete Product(s)
OFFSTBY MUTE PLAY STBYOFF MUTE
28
V
S
(V)
5
ST-BY
pin#9 (V)
5
MUTE
pin#10 (V)
INPUT
(mV)
V
OUT
(V)
I
Q
(mA)
D96AU531A
V
SVR
pin#7(V)
2.5V
Turn ON/OFF Sequences (for optimising the POP performances)
A) USING MUTE AND STAND-BY FUNCTIONS
MUTE STAND-BY TRUTH TABLE
MUTE ST-BY OPERATING CONDITION
H H STANDBY
L H STANDBY
H L MUTE
L L PLAY
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 TDA7494S must be brought
to mute from the play condition when the SVR
pin is higher than 2.5V.
TDA7494S
8/12
Obsolete Product(s) - Obsolete Product(s)
100µA
30K
V
S
INn
SVR
D97AU581
PINS:
IN1
+
-
+
-
6K
6K
1K
1K
30K
30K
SVR
20K
20K
V
S
V
S
V
S
OUT L
OUT R
100µA
D97AU585A
PIN:
SVR
TDA7494S
9/12

TDA7494S

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers Video switch chip
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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