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Other Parts Discussed in Thread: VCA8617
该芯片主要是放大信号功能，为何内部还有一个电压控制衰减器功能模块，很是疑惑。
你好, TI的VCA 打头的part number表征了其是可变增益的产品.
VCA8617是其中的一款.
里面包含了2个可变增益的模块, VCA和PGA, 其中VCA模块可实现衰减量的连续可调, 而PGA是有几档选择的增益模块,不是连续可调的.
所以两者相结合可以实现更大动态的调整.
谢谢!
