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--- adc2:simulations:fft_freq_mismatch [2009/11/21 08:54]
szymon.kulis
+++ adc2:simulations:fft_freq_mismatch [2019/03/08 14:08] (current)
@@ Line 45: / Line 45: @@
 {{:adc2:simulations:fsim_diff_log.png|}}
+**remark** : 1%@20Mhz@16kp = 12.7 Hz
+**conclusion** : if we want to achive resonable measurement resutls for 10-bit ADC working @ 20 Mhz (and with 16k FFT len) input signal freq should not differ from ideal one more then ~1 Hz.
+**conclusion 2 ** : reducing lenght of FFT (fbase is becoming larger) should relax this requirement (but also degrade precision of measurement)

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