TSEV83102G0BGL E2V, TSEV83102G0BGL Datasheet - Page 23

• Manufacturer Part Number: TSEV83102G0BGL
• Manufacturer: E2V

Specifications of TSEV83102G0BGL

• Lead Free Status / RoHS Status: Not Compliant

Typical Reconstructed
Signals and Signal
Spectrum
Figure 17. Fs = 1.4 Gsps and Fin = 702 MHz, -1 dBFS; Decimation Factor = 16, 32 kpoints FFT
Figure 18. Fs = 1.4 Gsps and Fin = 1399 MHz, -1 dBFS; Decimation Factor = 16, 32 kpoints FFT
2101D–BDC–06/04
The ADC input signal is sampled at a full sampling rate, but the output data is 8 or 16 times
decimated so as to relax the acquisition system data rate. As a consequence, the calculation
software sees an effective frequency divided by 8 or 16, compared to the ADC clock frequency
used (Fs). The spectrum is thus displayed from DC to Fs/2 divided by the decimation factor.
Decimation only folds all spectral components between DC and Fs/2 divided by the decima-
tion factor but does not change their amplitude.
This does not have any impact on the FFT spectral characteristics because of the ergodicity of
the samples (time average = statistic average). The input frequency is chosen to respect the
coherence of the acquisition.
TS83102G0B
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