National Instruments NI PXI-5621 Specification
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National Instruments NI PXI-5621 Specification

National Instruments NI PXI-5621 Specification

High-speed digitizer
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NI PXI-5621 S
High-Speed Digitizer

General Specifications

National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation. Product and company
names mentioned herein are trademarks or trade names of their respective companies. For patents covering
National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file
on your CD, or ni.com/patents.
ni.com
© 2002 National Instruments Corp. All rights reserved.
PECIFICATIONS
The NI PXI-5621 is a DC-coupled 64 MS/s 14-bit high-speed digitizer.
Except for its DC coupling, the PXI-5621 is functionally identical to the
PXI-5620. Refer to the NI PXI-562x User Manual for instructions on
installing and using your NI PXI-5621.
The NI PXI-5621 specifications are warranted at 0–50 °C ambient unless
otherwise specified, and include a 10 minute warm-up time from ambient
conditions.
Number of channels ............................... 1
Resolution .............................................. 14 bits
Sample rate range................................... 1 kS/s to 64 MS/s
Onboard memory
Not using DDC ............................... 32 MS
Using DDC (complex data) ............ 16 MS
Input
Signal level
Nominal .......................................... 0 dBm (±0.316 V
Full-scale......................................... +10 dBm (±1.000 V
Max with dither enabled ................. +8 dBm (±0.794 V
Non-operating
Max input level ........................ +20 dBm (±3.16 V
Max DC input voltage ............. ±3.0 V
Input impedance..................................... 50 Ω nominal
Coupling................................................. DC
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October 2002
323398B-01

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Summary of Contents for National Instruments NI PXI-5621

  • Page 1: General Specifications

    National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering 323398B-01 National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents. ni.com...
  • Page 2 DC offset..........±1 mV (calibrated) Analog bandwidth (–3 dB range) ...0 Hz to 36 MHz Amplitude accuracy ........±0.5 dB VSWR 0–25 MHz........<1.5:1 25–32 MHz........<3:1 Dither (can be disabled) Frequency range ......150 Hz to 4 MHz Frequency Internal sample clock Frequency ........64 MHz/n, where 1 < n < 2 Accuracy..........<±25 ppm Phase noise Offset...
  • Page 3 Signal-to-noise ratio 9 dBm signal, full bandwidth..>62 dB Harmonic distortion (single tone, 0 dBm signal; includes aliased harmonic distortion) 4–15 MHz, dither enabled ....<–77 dBm 0–32 MHz, dither disabled....<–71 dBm © National Instruments Corporation NI PXI-5621 Specifications...
  • Page 4 Typical Results 0.00 –10.00 –20.00 –30.00 –40.00 –50.00 –60.00 –70.00 –80.00 –90.00 –100.00 –110.00 30.5M 30.6M 30.7M 30.8M 30.9M 31.0M 31.1M 31.2M 31.3M 31.4M 31.5M Frequency (Hz) Figure 2. Intermodulation Distortion Intermodulation distortion (2-tone, 0 dBm signals, 200 kHz separation) 4–15 MHz, dither enabled ....<–86 dBm 0–32 MHz, dither disabled ....<–78 dBm Residual responses (input terminated)..<–75 dBm...
  • Page 5 Frequency (MHz) Figure 3. Frequency Response (0.1 – 32 MHz) Frequency response (4–25 MHz) Relative (to response at 15 MHz) ... <±0.25 dB Absolute .......... <±0.6 dB Absolute (using calibration table)... <±0.5 dB © National Instruments Corporation NI PXI-5621 Specifications...
  • Page 6 Phase Typical Results 20.00E–9 18.00E–9 16.00E–9 14.00E–9 12.00E–9 10.00E–9 8.00E–9 6.00E–9 4.00E–9 2.00E–9 0.00E+0 –2.00E–9 0.0E+0 5.0E+6 10.0E+6 15.0E+6 20.0E+6 25.0E+6 32.0E+6 Frequency (Hz) Figure 4. Group Delay versus Frequency Group delay variation (5–25 MHz) ..........9 ns pk–pk Group delay variation (0.5–30 MHz) .........26 ns pk–pk Decimation rate........32–4,096...
  • Page 7 Input amplitude ........–5 to +15 dBm Max non-operating input level....+20 dBm Max DC input voltage......±3.5 VDC Frequency range........10 MHz ±40 ppm Crosstalk from reference input....<–85 dB Calibration Calibration interval ........ 1 year © National Instruments Corporation NI PXI-5621 Specifications...

  • Page 8: Environmental Specifications

    Environmental Specifications Warm-up time.........10 minutes Operating environment Ambient temperature .......0–50 °C Humidity..........10–90%, noncondensing Storage environment Storage temperature......–20 to 70 °C Humidity..........5–95%, noncondensing Maximum altitude........2,000 meters Pollution Degree ........2 Indoor use only Power Requirements +3.3 VDC (±5%) ........<650 mA +5 VDC (±5%) ........<1.5 A +12 VDC (±5%) ........<650 mA –12 VDC (±5%)........<75 mA Maximum Working Voltage...

  • Page 9: Electromagnetic Compatibility

    When tested as specified in EN 61000-4-6 at 3 V , the spurious response is within specifications except at the test frequency. A spurious signal of up to –45 dBm may appear at the test frequency. © National Instruments Corporation NI PXI-5621 Specifications...

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