поискавой системы для электроныых деталей |
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ADC081000LEVAL датащи(PDF) 11 Page - National Semiconductor (TI) |
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ADC081000LEVAL датащи(HTML) 11 Page - National Semiconductor (TI) |
11 / 29 page Specification Definitions (Continued) SIGNAL TO NOISE RATIO (SNR) is the ratio, expressed in dB, of the rms value of the input signal at the output to the rms value of the sum of all other spectral components below one-half the sampling frequency, not including harmonics or d.c. SIGNAL TO NOISE PLUS DISTORTION (S/(N+D) or SI- NAD) is the ratio, expressed in dB, of the rms value of the input signal at the output to the rms value of all of the other spectral components below half the clock frequency, includ- ing harmonics but excluding d.c. SPURIOUS FREE DYNAMIC RANGE (SFDR) is the differ- ence, expressed in dB, between the rms values of the input signal at the output and the peak spurious signal, where a spurious signal is any signal present in the output spectrum that is not present at the input, excluding d.c. TOTAL HARMONIC DISTORTION (THD) is the ratio ex- pressed in dB, of the rms total of the first nine harmonic levels at the output to the level of the fundamental at the output. THD is calculated as where A f1 is the RMS power of the fundamental (output) frequency and A f2 through Af10 are the RMS power of the first 9 harmonic frequencies in the output spectrum. – Second Harmonic Distortion (2nd Harm) is the differ- ence, expressed in dB, between the RMS power in the input frequency seen at the output and the power in its 2nd harmonic level at the output. – Third Harmonic Distortion (3rd Harm) is the difference expressed in dB between the RMS power in the input fre- quency seen at the output and the power in its 3rd harmonic level at the output. www.national.com 11 |
Аналогичный номер детали - ADC081000LEVAL |
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Аналогичное описание - ADC081000LEVAL |
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