TDA7298V 查看數據表（PDF） - STMicroelectronics

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TDA7298V

28W Hi-Fi AUDIO POWER AMPLIFIER WITH MUTE / STAND-BY

STMicroelectronics 

TDA7298

MUTE/STAND-BY FUNCTION

The pin 3 (MUTE/STAND-BY) controls the ampli-

fier status by three different thresholds, referred

to -VS.

When its voltage is lower than the first threshold

(1V, with a +70mV hysteresis), the amplifier is in

STAND-BY and all the final stage current gener-

ators are off. Only the input MUTE stage is on in

order to prevent pop-on problems.

At Vpin3=1.8V the final stage current generators

are switched on and the amplifier operates in

MUTE.

For Vpin3 =2.7V the amplifier is definitely on

(PLAY condition)

Figure 15.

8/11

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