ZHCSCX0D January 2014 – October 2017 ADC12J1600 , ADC12J2700
PRODUCTION DATA.
The following curves show an RF signal at 2497.97 MHz captured at a sample rate of 1600 MSPS. Figure 110 shows the spectrum for the full Nyquist band.Figure 111 shows the spectrum for the output data in decimate-by-32 mode with ƒ(NCO) equal to 700 MHz. Figure 111 shows the ability to provide only the spectrum of interest in the decimated output data. Figure 111 also shows how proper selection of the sampling rate can ensure interleaving tones are outside the band of interest and outside the decimated frequency range. Lastly, Figure 111 shows the reduction in the noise floor provided by the processing gain of decimation.
DDC Bypass Mode | ƒS = 1600 MSPS | |
FIN = 2497.97 MHz at –1 dBFS |
ƒS = 1600 MSPS | ƒ(NCO) = 2500 MHz | |
FIN = 2497.97 MHz at –1 dBFS |