el7457用于产生信号40mhz，电压可调航天遥感仪器低等级器件EL7457CS的筛选方案设计航天遥感仪器低等级器件EL7457CS的筛选方案设计_专业资料。为保证航天任务中低等级器件的可靠性,需要对设计中所选择的低等级器件进行可靠性筛选。(el7457 The voltage can be designed for space remote sensing instrument screening scheme of low grade devices EL7457CS space remote sensing instrument low level device EL7457CS screening design _ professional information. In order to ensure the reliability of low grade devices in space missions, the low level devices selected in the design should be selected for reliability screening.)