文件名称:cpld
- 所属分类:
- 其他嵌入式/单片机内容
- 资源属性:
- [WORD]
- 上传时间:
- 2012-11-26
- 文件大小:
- 158kb
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- 0次
- 提 供 者:
- 梁**
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测量范围要求 1Hz-10MHz(输入信号幅度为0.5V-5V)。
基本性能要求 f为10MHz时,频率绝对误差不大于1000Hz; (高频精度)
f小于1000Hz时,频率绝对误差不大于1Hz。 (低频精度)
提高性能要求 高频精度提高: f为10MHz时,频率绝对误差不大于100Hz。
低频精度提高:f小于1000Hz时,频率绝对误差不大于0.5Hz。
-Requirements of measuring range 1Hz-10MHz (input signal range of 0.5V-5V). F the basic performance requirements for the 10MHz, the frequency of absolute error not more than 1000Hz (high-frequency accuracy) f less than 1000Hz, the frequency of absolute error no greater than 1Hz. (Low-frequency accuracy) to improve the accuracy of performance requirements to improve high-frequency: f to 10MHz, the frequency of absolute error not more than 100Hz. Low-frequency accuracy: f is less than 1000Hz, the frequency of absolute error no greater than 0.5Hz.
基本性能要求 f为10MHz时,频率绝对误差不大于1000Hz; (高频精度)
f小于1000Hz时,频率绝对误差不大于1Hz。 (低频精度)
提高性能要求 高频精度提高: f为10MHz时,频率绝对误差不大于100Hz。
低频精度提高:f小于1000Hz时,频率绝对误差不大于0.5Hz。
-Requirements of measuring range 1Hz-10MHz (input signal range of 0.5V-5V). F the basic performance requirements for the 10MHz, the frequency of absolute error not more than 1000Hz (high-frequency accuracy) f less than 1000Hz, the frequency of absolute error no greater than 1Hz. (Low-frequency accuracy) to improve the accuracy of performance requirements to improve high-frequency: f to 10MHz, the frequency of absolute error not more than 100Hz. Low-frequency accuracy: f is less than 1000Hz, the frequency of absolute error no greater than 0.5Hz.
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cpld.doc