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TDA7495SA Datasheet(PDF) 7 Page - STMicroelectronics |
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TDA7495SA Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 15 page TDA7495SA Applications 7/15 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 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. OFF STBY MUTE PLAY STBY OFF MUTE 28 VS (V) 5 ST-BY pin#9 (V) 5 MUTE pin#10 (V) INPUT (mV) VOUT (V) IQ (mA) D96AU531A VSVR pin#7(V) 2.5V |
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