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我想做一个pll合成器,输出1-55mhz,用4个vco,步进初步定在500hz 1khz,mb1504 mc145170这2个片子选一,不知能否做到500hz步进?如果做到了500hz步进,上限频率还能达到55mhz吗?望高人赐教!
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