Datenblatt-Suchmaschine für elektronische Bauteile |
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CS4373 Datenblatt(PDF) 9 Page - Cirrus Logic |
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CS4373 Datenblatt(HTML) 9 Page - Cirrus Logic |
9 / 20 page CS4373 DS577F1 9 2. TERMINOLOGY • Dynamic Range (Signal-to-Noise Ratio) - Ratio of the rms magnitude of the theoretical full scale signal to the integrated rms noise from DC to 400 Hz. The following formula is used to calculate this value: • Total Harmonic Distortion - Ratio of the power of the fundamental frequency to the sum of the powers of all harmonic frequencies from DC to 400 Hz. The following formula is used to cal- culate this value: • Full Scale Bandwidth - The bandwidth in which the converter can generate a full scale signal while maintaining all performance specifications. • Wideband Max Amplitude - The maximum amplitude of the output signal beyond the full scale band-width. • Differential Output Level - The peak-to-peak voltage between the analog output pins of the converter. • Absolute Accuracy - Variation in the measured output voltage from the theoretical output volt- age at each of the attenuation ranges. The following formula is used to calculate this value: • Relative Accuracy - Variation in the measured output voltage from the theoretical output volt- age (relative to measured full scale signal with no attenuation) at each of the attenuation ranges. The following formula is used to calculate this value: • Offset Error - Variation from the theoretical common mode voltage generated by the convert- er. The following formula is used to calculate this value: • Full Scale Drift - The variation of the measured full scale voltage across the specified temper- ature range. • Offset Drift - The variation in the measured offset voltage across the specified temperature range. SNR = 20log rms magnitude of full scale signal rms magnitude of noise floor ( THD = 10log power of the fundamental frequency sum of the powers of the harmonic frequencies ( absolute accuracy = measured attenuated voltage - theoretical attenuated voltage theoretical attenuated voltage ( •100% relative accuracy = measured attenuated voltage - theoretical attenuated voltage theoretical attenuated voltage (relative to the measured full scale voltage) ( •100% offset error = measured offset theoretical full scale voltage ( •100% |
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