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高速ADC（模数转换器）精度分析，包括有效位数、无杂散动态范围等，显示信号的频谱。可选择不同的窗函数。,High-speed ADC (ADC) precision analysis, including the effective number of bits, such as spurious-free dynamic range, showing the signal spectrum. Choice of different window function.
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实现由一个4位十进制数码管（含小数点）显示结果，其测量范围为1Hz~9999KHz，能自动根据7位十进制的结果，自动选择有效数据的高4位进行动态显示（即量程自动转换），小数点表示是千位，即KHz，-To achieve a 4 decimal digits (including decimal point) shows the results of its measurement range of 1Hz ~ 9999KHz, automatically in accordance with t
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4位自动换挡数字频率计设计
1、 由一个4位十进制数码管（含小数点）显示结果；
2、 测量范围为1Hz~9999KHz；
3、 能自动根据7位十进制的结果，自动选择有效数据的高4位进行动态显示（即量程自动转换），小数点表示是千位，即KHz；
4、 为检测设计正确与否，应将时钟通过PLL和手控分频器产生宽范围的多个频率来测试自动换档频率计功能。
-4 automatic transmission design a digital frequency meter, by a 4
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数字频率计 具有4位显示，能自动根据7位十进制计数的结果，自动选择有效数据的
--说 明：高4位进行动态显示。所显示的结果是数码管显示的数据乘以十的N次方；N对应发光二极管的右边点亮的第几位就是几，如果如果最右边的一个被点亮的话，频率就等于显示的
--数值乘以10的一次方。频率的测量范围是0～9,999,999HZ。-Digital frequency meter with four automatically according to the result of seven decim
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The inherent robustness of OFDM against
multipath effects makes it an excellent choice for situations
where multiple transmitters are used simultaneously (to avoid
shadowing effects) and a path difference to the receiver exists.
One of the ma
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The inherent robustness of OFDM against
multipath effects makes it an excellent choice for situations
where multiple transmitters are used simultaneously (to avoid
shadowing effects) and a path difference to the receiver exists.
One of the ma
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0下载：
The inherent robustness of OFDM against
multipath effects makes it an excellent choice for situations
where multiple transmitters are used simultaneously (to avoid
shadowing effects) and a path difference to the receiver exists.
One of the ma
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low-power 16-bit CMOS D/A converter for portable
digital audio is described. The converter is based on current division. To
guarantee monotonicity and a good small-signal reproduction, a dynamic
segmentation technique is used. A geometric avera
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控制芯片STC90C516RD+ ,AD7705,16位∑－Δ模数转换芯片，调试可用。附有中英文手册。AD7705是完整的16 位AD转换器。若外接晶体振荡器、精密基准源和少量去耦电容, 即可连续进行A D转换。 采用SP I Q SP I兼容的三线串行接口,具有高分辨 率、宽动态范围、自校准、优良的抗噪声性能以及低电压低功耗等特点， 非常适合仪表测量、工业控制等领域的应用。 -The control chip STC90C516RD+, AD7705,16 bit sigma delta an
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The ADS1252 is a precision, wide dynamic range, deltasigma,
Analog-to-Digital (A/D) converter with 24-bit resolution
operating from a single +5V supply. The delta-sigma
architecture is used for wide dynamic range and to ensure 24
bits of no missi
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