Manuale d’uso / di manutenzione del prodotto NI 5421 del fabbricante Genie
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NI 5421 Specifications NI PXI/PCI-5421 16-Bit 100 MS/s Arbitrary Waveform Generator Unless otherwise noted, the followi ng conditions were used for each specification: • Analog Filter enabled. • Interpol ation set to maximum allo wed factor f or a gi v en sample r ate.
NI 5421 Specifications 2 ni.com CH 0 (Channel 0 Analog Output , Front Panel Connector) Table 1. Specif ication Va l u e Comments Number of Channels 1 — Connector SMB (jack) — Output Voltage Characteristics Output Paths 1. The software-selectable Ma in Output Path setting provides full-scale v oltages from 12.
© National Instruments Corpor ation 3 NI 5421 Specifications Amplitude and Of fset Amplitude Range Pat h Load Amplitude (V pk-pk ) 1. Amp litude values assume the full scale of the D A C is utilized. If an amplitude smaller than the minimu m va lu e i s desired, then wa veforms le ss than full scale of the D A C can be used.
NI 5421 Specifications 4 ni.com Maximum Output Voltage Maximum Output Vo l t a g e Pat h Load Maximum Output V oltage (V pk -pk ) The Max imum Output V oltage of the NI 5421 is determined by the Amplitude Range and the Of fset Range. Direct 50 Ω ±0.
© National Instruments Corpor ation 5 NI 5421 Specifications Output Coupling DC — Output Enable Software-selectable. When disabl ed, CH 0 out is terminated with a 1 W resistor with a value equal to the selected output impedance.
NI 5421 Specifications 6 ni.com Figure 1. Normalized Pas sband Flatness, Direct Path Figure 2. Pulse Response, Low-Gai n Amplifier Path 50 Ω Load 1.0M 10.0M 48.0M –10.0 –9.0 –6.0 –8.0 –5.0 –7.0 –3.0 –2.0 –1.0 0.0 1.0 2.0 F requency (Hz) dB –4.
© National Instruments Corpor ation 7 NI 5421 Specifications Table 1. (Continued) Specification Va l u e Comments Suggested Maximum Frequencies for Common Funct ions Function Path Disable the Analog Filter and the Digital Interpolation Filter for S quare, Ramp, and T riangle.
NI 5421 Specifications 8 ni.com Spectral Characteristics (Continued) Spurious-Free Dynamic Range (SFDR) with Harmonics Path Amplitude –1 dBFS. Measured from DC to 50 MHz. Also called harmonic distortion. SFDR with harmonics at low amplitudes is limited by a –148 dBm/Hz noise floor .
© National Instruments Corpor ation 9 NI 5421 Specifications Spectral Characteristics (Continued) 0 º C to 40 º C T otal Harmonic Distortion (THD) Path Amplitude –1 dBFS.
NI 5421 Specification s 10 ni.com A verage Noise Density Pat h Amplitude Range A verage Noise Density A verage Noise Density at small amplitudes is limited by a –148 dBm/Hz noise floor . V pk-pk dBm dBm/Hz dBFS/ Hz Direct 1 4.0 18 –142 –146.0 Lo w Gain 0.
© National Instruments Corpor ation 11 NI 5421 Specifications Figure 3. 10 MHz Single-T one Spectrum , Direct Path, 100 MS/s, Interpolation Factor S et to 4 Note The noise floor in Figure 3 is lim ited by the measurement de vice. Refer to the Average Noise Density specif ication.
NI 5421 Specification s 12 ni.com Figur e 4. 10 MHz Single-T one Spectrum, Low -Gain Amplifier Path, 100 MS/s, Interpolation Factor Set to 4 Note The noise floor in Figure 4 is lim ited by the measurement de vice. Refer to the Average Noise Density specif ication.
© National Instruments Corpor ation 13 NI 5421 Specifications Figure 5. Direct Path, 2-T one Spectrum (T ypical) Note The noise floor in Figure 5 is lim ited by the measurement de vice. Refer to the Average Noise Density specif ication. 0.0 25.0M 50.
NI 5421 Specification s 14 ni.com Sample Clock Table 2. Specif ication Va l u e Comments Sources 1. Internal, Di vide-by- N ( N ≥ 1) 2. Internal, DDS-based, High-Resolution 3. External, CLK IN (SMB front panel connector) 4. External, DDC CLK IN (DIGIT AL D A T A & CONTR OL front panel conn ector) 5.
© National Instruments Corpor ation 15 NI 5421 Specifications Effective Sample Rate Sample Rate (MS/s) Interpolation Factor Ef fecti ve Sample Rate Ef fecti ve Sample Rate = (Interpolation Factor) * (Sample Rate) 10 S/s to 105 MS/s 1 (Off) 10 S/s to 105 MS/s 12.
NI 5421 Specification s 16 ni.com System Phase Noise and Jitter (10 MHz Carrier) Sample Clock Source System Phase Noise Density (dBc/Hz) Offset System Output Jitter (Integrated from 100 Hz to 100 kHz) 1. High- Resolution specifications increase as the Sample Rate is decreased.
© National Instruments Corpor ation 17 NI 5421 Specifications Onboard Clock (Internal VCXO) Sample Clock Exporting Exported Sample Clock Destinations 1. PFI<0..1> (SMB front panel connectors) 2. DDC CLK OUT (DIGIT AL D A T A & CONTR OL front panel connector) 3.
NI 5421 Specification s 18 ni.com Phase-Locked Loop (PLL) Reference Clock Table 4. Specif ication Va l u e Comments Sources 1. NI PXI-5421 —PXI_CLK10 (backplane connector) NI PCI-5421 —R TSI_7 (R TSI_CLK) 2. CLK IN (SMB fro nt panel connector) The PLL Reference Clock provides the reference frequenc y for the phase-locked loop.
© National Instruments Corpor ation 19 NI 5421 Specifications CLK IN (Sample Clock and Reference Cloc k Input, Front Panel Connector) Table 5. Specif ication Va l u e Comments Connector SMB (jack) — Direction Input — Destinations 1. Sample Clock 2.
NI 5421 Specification s 20 ni.com PFI 0 and PFI 1 (Programmable Function Interfac e, Front Panel Connectors) Table 6. Specif ication Va l u e Comments Connectors T wo SMB (jack) — Direction Bi-directional — Frequenc y Range DC to 105 MHz — As an Input (Trigger) Destinations Start T rigger — Maximum Input Overload –2 V to +7 V — V IH 2.
© National Instruments Corpor ation 21 NI 5421 Specifications V OH Minimum: 2.9 V (open load), 1.4 V (50 Ω load) Output driv ers are +3.3 V TTL compatible. Measured with a 1 m cable. V OL Maximum: 0.2 V (open load), 0.2 V (50 Ω load) Rise/F all T ime (20% to 80%) ≤ 2.
NI 5421 Specification s 22 ni.com DIGIT AL DA T A & CONTROL (DDC) Optional Front Panel Connector Table 7. Specif ication Va l u e Comments Connector T ype 68-pin VHDCI female receptacle — Number of Data Output Signals 16 — Control Signals 1. DDC CLK OUT (clock output) 2.
© National Instruments Corpor ation 23 NI 5421 Specifications Output Signal Characteristics (Continued) Output Skew T ypical: 1 ns, maxim um 2 ns. Ske w between any two outp uts on the DIGIT AL DA T A & CONTR OL front panel connector .
NI 5421 Specification s 24 ni.com Start T rigger DDC CLK IN Clocking For ma t DDC Data Output signals change on the rising edge of DDC CLK IN. — Frequenc y Range 10 Hz to 105 MHz — Input Duty Cycle T olerance 40% to 60% — Input Jitter T olerances 300 ps pk-pk of Cycle-Cycle Jitter, and 1 ns rms of Period Jitter .
© National Instruments Corpor ation 25 NI 5421 Specifications Delay from Start T rigger to CH 0 Analog Output Interpolation Factor T ypical Delay Refer to t s2 at NI Signal Generators Help»Devices» NI 5421» NI <bus>-5421» Triggering» Trigger Timing .
NI 5421 Specification s 26 ni.com Markers Table 9. Specif ication Va l u e Comments Destinations 1. PFI<0..1> (SMB front panel connectors) 2. PFI<4..5> (DIGIT AL D A T A & CON TR OL front panel connector) 3. NI PXI-5421 —PXI_T rig<0.
© National Instruments Corpor ation 27 NI 5421 Specifications W aveform and Instruction Memor y Utilization Table 10. Specif ication Va l u e Comments Memory Usage The NI 5421 uses the Synchronization and Memory Core (SMC) technology in which wav eforms and instructions share onboard memory .
NI 5421 Specification s 28 ni.com Loop Count 1 to 16,777,21 5. Burst trigger: Unlimited — Quantum W aveform size must be an integer multiple of four samp les. — Memory Limits 8 MB Standard 32 MB Optio n 256 MB Option All trigger modes except where noted.
© National Instruments Corpor ation 29 NI 5421 Specifications Calibration Power Table 11. Specif ication Va l u e Comments Self-Calibrati on An onboard, 24-bit ADC and precision voltage reference are used to calibrate the DC gain and offset.
NI 5421 Specification s 30 ni.com Software Table 13. Specif ication Va l u e Comments Dri ver Software NI-FGEN 2.0 or later ve rsion. NI-FGEN is an IVI-compliant driv er that all o ws you to configure, control, and calibrate the NI 5421. NI -FGEN prov ides application programming interfaces fo r man y de velopment en vironment s.
© National Instruments Corpor ation 31 NI 5421 Specifications Environment NI PXI-5421 Environment Note T o ensure that the NI PXI-5421 cools ef fectively , follo w the guidelines in the Maintain Forced-Air Cooling Note to Users incl uded in the NI 542 1 kit.
NI 5421 Specification s 32 ni.com NI PCI-5421 Environment Note T o ensure that the NI PCI-5421 cools ef fectively , follo w the guidelines in the Maintain Forced -Air Cooling Note to Users included in the NI 5421 kit. Also, to maximize airflo w and extend the life of the de vice, lea ve any adjacent PCI slots empty .
© National Instruments Corpor ation 33 NI 5421 Specifications Safety , Electromagnetic Compatibility , and CE Compliance Table 16. Specification Va l u e Comments Safety The NI 5421 is designed to me.
NI 5421 Specification s 34 ni.com Physical Table 17. Specif ication Va l u e Comments Dimensions NI PXI-5421 NI PCI-5421 — 3U, One Slot, PXI/cPCI Module 2.0 × 13.0 × 21.6 cm (0.8 × 5.1 × 8.5 inches) 34.07 × 10.67 × 2.03 cm (13.4 × 4.20 × 0.8 inches) We i g h t 345 g (12.
© National Instruments Corpor ation 35 NI 5421 Specifications NI PXI-5421 Only—Front Panel LED Indicators Label Function For more informat ion, refer to the NI Sig nal Generators Help. A CCESS LED The A C CESS LED indicates the status of the PCI b us and the interface from the NI 5421 to the controller .
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Genie NI 5421 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Genie NI 5421 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Genie NI 5421 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Genie NI 5421 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Genie NI 5421, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Genie NI 5421.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Genie NI 5421. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Genie NI 5421 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
