关于三种状态下的晶体振荡器Output(信号输出),解释如下:
When the tri-state or OE pin is floating, the output pin of the crystal oscillator is at nominal frequency.
在三态脚或OE脚悬空状态下(“悬空”在这里指floating, disconnected,不连接的意思),晶振振荡器输出脚输出标称频率。
An oscillator with a Tri-State function allows the oscillator output to be switched on or off by means of simple logic control. The output pin of the oscillator is either at nominal frequency or at a high impedance state dependent upon the logic level on the Output Enable (OE) pin. Note that when an oscillator with enable/disable funtion implemented is in ‘disable’ (high impedance) mode, the internal oscillator circuit is still running, therefore power saving attributes are somewhat moderate in this mode.
具有三态功能的振荡器允许通过简单的逻辑控制打开或关闭振荡器输出。振荡器的输出引脚处于标称频率或高阻抗状态,具体取决于输出使能(OE)引脚上的逻辑电平。请注意,当实现了启用/禁用功能的振荡器处于“禁用”(高阻抗)模式时,内部振荡器电路仍在运行,因此在此模式下省电属性适中。
An oscillator with ‘Standby’ function implemented, like the enable/disable function, allows the oscillator output to be switched on or off by a simple logic control circuit. However, in the case of the standby mode the oscillator powers down. This provides useful a energy saving device, particularly suitable for battery powered equipment. However, be aware that while ‘standby’ gives power saving over and above that of ‘enable/disable’, the ‘standby’ function implementation necessitates that the oscillator is subject to’start-up’ time whenever the output is switched.
具有“待机”功能的振荡器,如启用/禁用功能,允许通过简单的逻辑控制电路打开或关闭振荡器输出。但是,在待机模式下,振荡器断电。这提供了一种有用的节能装置,特别适用于电池供电的设备。但是,请注意,虽然“待机”比“启用/禁用”更节能,但“待机”功能实现要求振荡器在切换输出时受到“启动”时间的影响。