TDA7495SA_07 Datasheet, PDF (7/15 Pages) STMicroelectronics – 11 W + 11 W amplifier with DC volume control

TDA7495SA
Applications
3.3
Power-up/down sequence
In order to reduce the loud speaker “pop” noise when switching the device on or off we
recommend that you follow the sequence of operations shown in Figure 6 below.
Figure 6.
Recommended sequence 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)
IQ
(mA)
OFF STBY MUTE
PLAY
MUTE STBY OFF
D96AU531A
Using the mute function only
To simplify the application, pin STBY can be connected directly to ground so that the device
is always active. Then, to maintain the power-up/down performance you should adhere to
the following conditions:
" At turn-on the transition mute to play must be made when pin SVR is higher than 2.5 V.
" At turn-off the TDA7495SA must be set to mute from the play condition before pin SVR
falls below 2.5 V.
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