National Instruments NI USB-9234 User Manual page 19

© National Instruments Corporation
Phase nonlinearity
(f = 51.2 kS/s) ................................ ±0.45° max
s
Stopband
Frequency........................................ 0.55 · f
Rejection ......................................... 100 dB
Alias-free bandwidth.............................. 0.45 · f
Oversample rate ..................................... 64 · f
Crosstalk (1 kHz) ................................... –110 dB
≤ 1 kHz)
CMRR (f
in
Minimum ........................................ 40 dB
Typical ............................................ 47 dB
SFDR (f = 1 kHz, –60 dBFS) .............. 120 dB
in
Idle channel noise and noise density
Idle Channel
Noise
Noise density
Input impedance
Differential...................................... 305 kΩ
AI– (shield) to chassis ground ........ 50 Ω
Total harmonic distortion (THD)
Input
Amplitude
–1 dBFS
–20 dBFS
Intermodulation distortion (–1 dBFS)
DIN 250 Hz/8 kHz
4:1 amplitude ratio .......................... –80 dB
CCIF 11 kHz/12 kHz
1:1 amplitude ratio .......................... –93 dB
51.2 kS/s 25.6 kS/s
97 dBFS 99 dBFS
50 μV 40 μV
rms
310 nV/√Hz 350 nV/√Hz
1 kHz,
–40 to 70 °C
–95 dB
–95 dB
19 NI USB-9234 User Guide and Specifications
s
s
s
2.048 kS/s
103 dBFS
25 μV
rms rms
780 nV/√Hz
8 kHz,
–40 to 70 °C
–87 dB
–80 dB