National Instruments NI 7831R Manual de usuario descargar pdf (Pagina 50)

Appendix A Specifications

NI 7831R User Manual A-6 ni.com

Phase locked to PXI 10 MHz

Clock(NI PXI-7831R only) ....................Adds 350 ps jitter, 300 ps skew

Additional frequency dependent jitter

40 MHz............................................None

80 MHz............................................400 ps

120 MHz..........................................720 ps

160 MHz..........................................710 ps

200 MHz..........................................700 ps

Calibration

Recommended warm-up time.................15 minutes

Calibration interval .................................1 year

Onboard calibration reference

DC level...........................................5.000 V (±3.5 mV)

(actual value stored

in Flash memory)

Temperature coefficient...................±5 ppm/°C max

Long-term stability ..........................±20 ppm/

Note Refer to Calibration Certificates at ni.com/calibration to generate a

calibration certificate for the NI 7831R.

Bus Interface

PXI (NI PXI-7831R only) ......................Master, slave

PCI (NI PCI-7831R only).......................Master, slave

Power Requirement

+5 VDC (±5%) .......................................450 mA (typ), 700 mA (max)

(does not include current drawn

from the +5 V line on the

I/O connectors)

+3.3 VDC (±5%) ....................................335 mA (typ), 730 mA (max)

(does not include current sourced

by the digital outputs. To

calculate the total current sourced

1,000 h

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 70 71

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National Instruments NI 7831R Manual de usuario Pagina 50