7
Figure 1-5: PXI-69816 FFT with ±1 V Input Range
Spectral Characteristics – PXI-69826
Specification
Input Range
±1 V
±0�2 V
Signal to Noise and Distortion (SINAD), typical
78.63 dBc
74.44 dBc
Signal-to-Noise Ratio (SNR), typical
79.95 dBc
74.48 dBc
Total Harmonic Distortion (THD), typical
-88.29 dBc
-93.52 dBc
Spurious Free Dynamic Range (SFDR), typical
88.88dBc
95.52 dBc
Effective Number of Bit (ENOB), typical
12.77-Bit
12.07-Bit
Test Conditions: Input signal frequency is 0.998 MHz. Digitizer sampling rate at 20 MHz
with 50 Ω input impedance. Calculated with 64 K-point data.
Note that these dynamic parameters may vary from one unit to another, with input
frequency and with the full scale input range selected.
Table 1-6: Spectral Characteristics – PXI-69826
