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TLC5620哪个管脚可做片选?

Other Parts Discussed in Thread: TLC5620

TLC5620哪个管脚可做片选? 另外,请详细解释一下LOAD和LDAC的用法,以及如何使用比较好?

  • 可以用LDAC作为片选,

    关于LOAD和LDAC的用法,在datasheet中第二页有详细说明。

    具体就是,当LDAC为高电平时,控制四个DAC都没有输出;当LDAC从高电平变为低电平后,通过控制LOAD(从高变到低电平)来把数字信号输入到输出锁存器中,同时DAC立刻输出模拟信号。

    你读一读手册,就明白了。