National Semiconductor ADS42B4 Series, User Manual, Page: 9 / 17

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Basic Test Procedure
2.6 ADS42B4x Performance Results
Figure 6 shows the performance result at 250-MSPS clock frequency and with a 170-MHz input tone.
Figure 6 shows the performance of channel A from ADS42B4xEVM. SNR is 69.85 dBFS and SFDR is
82.85 dBFS.
Figure 6. FFT Plot: 250-MHz clock, 170-MHz Input to Channel A
Figure 7 shows the performance of channel B from ADS42B4xEVM. SNR is 69.94 dBFS and SFDR is
84.77 dBFS.
Figure 7. FFT Plot: 250-MHz clock, 170-MHz Input to Channel B
9 SLAU477A – December 2012 – Revised January 2015 ADS42B4x EVM
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