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TDA7298 数据表(PDF) 8 Page - STMicroelectronics |
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TDA7298 数据表(HTML) 8 Page - STMicroelectronics |
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8 / 11 page ![]() 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. TDA7298 8/11 |
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