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电子音量与DC音量的区别
Date:February 15, 2024 Views:439
非微机音量控制模式
电位器控制:
通常接在功放之前,直接串接在信号回路中,利用电位器的分压功能达到提升和衰减音量的目的。每通道各需要一个电位器。
直流音量(DC VOLUME):
通过可变电阻(通常是电位器)改变VOLUME端的电压达到调节音量的目的。
VDD:IC的供电电压(比如:+5V)
电子音量(Digital Volume):
通常采用轻触开关(又称:微动开关)对地(0V)接通,改变PIN端电平达到调节音量的目的。
UP:音量按规定值增加,DOWN:音量按规定值减少,RST:回到开机默认音量值。
微机音量控制模式
通常由单片机通过控制总线对芯片传输数据,经过芯片内部对数据的处理而改变音量。控制总线常见的有IIC,SPI等。例如IIC只有2根线:数据线SDA和时钟线SCL。
我司专业从事"
音量控制IC
"的销售推广,详细的产品资料请参看:http://en.chipsourcetek.com
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