晶振振蕩的原理分析
晶振能否穩(wěn)定振蕩,主要取決于能量損耗的大小及放大電路的補償能力。在晶振振蕩時,晶振損耗由晶振等效阻抗的實部Re決定,Re代表了晶振串入到振蕩電路中的等效電阻,也被稱為等效串聯(lián)電阻,記作ESR。ESR數(shù)值越大則晶振在振蕩時的損耗就越大,就越容易導致晶振振蕩不穩(wěn)定甚至停振,反之ESR越小則晶振越容易起振。 晶振ESR的具體……
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晶振能否穩(wěn)定振蕩,主要取決于能量損耗的大小及放大電路的補償能力。在晶振振蕩時,晶振損耗由晶振等效阻抗的實部Re決定,Re代表了晶振串入到振蕩電路中的等效電阻,也被稱為等效串聯(lián)電阻,記作ESR。ESR數(shù)值越大則晶振在振蕩時的損耗就越大,就越容易導致晶振振蕩不穩(wěn)定甚至停振,反之ESR越小則晶振越容易起振。 晶振ESR的具體……
為方便后面分析負載電容對晶體振蕩器廠家頻率及起振的為便于分析,將式中晶振復阻抗的實部Re和虛部XePierce晶體振蕩器廠家器是Colpitts電容三點式晶體振蕩器廠家器的變形,它可以工作在幾kHz到幾百MHz的頻率范圍,因其結構簡單、成本低廉,而且精度高、波形好,特別是功耗低以及對電源電壓和環(huán)境溫度等因素不敏感,所以……
With the rapid development of information technology, miniaturized products are becoming more and more popular. The same is true for the crystal oscillator industry. Today, more and more electronic devices choose to use small and light chip crystal oscill
Crystal oscillator is also called active crystal oscillator, and the other is called crystal resonator (passive crystal oscillator). The two are collectively called crystal oscillator. In the purchase of crystal oscillators, the purchase requirements of a
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近期在技術論壇發(fā)現(xiàn),好多技術工程師都分辨不清石英晶體振蕩器、石英晶體諧振器以及晶振,在解答內容發(fā)布之后誤導更多的人。那今天我們就來分別介紹下石英晶體振蕩器、石英晶體諧振器和晶振。 石英是晶振的一種材質,當然材質也有陶瓷的,但是石英晶振的精度比陶瓷晶振的高,所以在市場上應用比較廣泛。陶瓷晶振一般應用于一些低……
The oscillating circuit with quartz resonator is unstable. Oscillating circuits are usually designed with a negative resistance value, which is usually related to the feedback coefficient of the circuit and the amplification factor of the active elemen
Many people can't tell the difference between a quartz crystal resonator and a quartz crystal oscillator. The quartz crystal oscillator is mistaken for a crystal oscillator. Even in many electronic technology forums, it is found that many electronic e
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Someone once said that human beings are called the smartest primates, because they not only have all kinds of things to help you achieve a goal by virtue of human nature, but also achieve a specific purpose and specific tools to help you achieve it. This