Manuale d’uso / di manutenzione del prodotto 5441 del fabbricante National Instruments
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NI 5441 Specifications NI PXI-5441 16-Bit 100 MS/s Arbitrary Waveform Generator with Onboard Signal Processing (OSP) Unless otherwise noted, the followi ng conditions were used for each specification: • Analog Filter enabled. • D A C Interpolation set to m aximum allowed factor for a gi ven sample rate.
NI 5441 Specifications 2 ni.com Arbitrary Waveform Generation Mode .... .............. .................... .............25 Function Generation Mode ...... .................... ....................... ................... .. 28 Onboard Signal Processing .
© National Instruments Corpor ation 3 NI 5441 Specifications Amplitude and Of fset Amplitude Range Pat h Load Amplitude (V pk-pk ) 1. Ampli tude v alues 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 wav eform s less than full scale of the D A C can be used.
NI 5441 Specifications 4 ni.com Accuracy DC Accuracy F or the Low-Gain or High-Gain Amplifier P ath: ± 0.2% of Amplitude ± 0.05% of Of fset ± 500 µV (within ± 10 °C of self-calibration temperature) ±0.4% of Amplitude ± 0.05% of Offset ± 1m V (0 °C to 55 °C) All paths are calibrated for amplitude and gain errors.
© National Instruments Corpor ation 5 NI 5441 Specifications Frequency and Transient Response Bandwidth 43 MHz Measured at –3 dB. DAC D i g i t a l Interpolation Filter Software-selectable Finite Im pulse Response (FIR) filter . A vailable interpolation f actors are 2, 4, or 8.
NI 5441 Specifications 6 ni.com Figure 1. Normalized Passband Fl atness, Direct Pa th 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 5441 Specifications Figure 3. Frequency Response of Direct Path, 100 MS/s, 1x DAC Interpolation Note Above 50 MHz, the response is the image response. 0.0 20.0M 40.0M 60.0M 80.0M 100.0M 120.0M 140.0M 160.0M 180.
NI 5441 Specifications 8 ni.com Specification Va l u e Co mments Suggested Maximum Frequencies for Common Function s Function Path Disable the Analog Filter and the D A C Interpolation Filter for S quare, Ramp, and T riangle. * Direct Path is optimized for the frequency domain.
© National Instruments Corpor ation 9 NI 5441 Specifications 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 .
NI 5441 Specification s 10 ni.com 0 º C to 40 º C T otal Harmonic Distortion (THD) Path Amplitude –1 dBFS. Includes the 2 nd through the 6 th harmonic.
© National Instruments Corpor ation 11 NI 5441 Specifications Spectral Characteristics (Continued) 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 .
NI 5441 Specification s 12 ni.com Figure 4. 10 MHz Single-T one Spectrum, Direct Path, 100 MS/s, DAC Interpolation Factor Set to 4 Note The noise floor in Figure 4 is lim ited by the measurement de vice. Refe r to the Ave r age Noise Density speci f i cations.
© National Instruments Corpor ation 13 NI 5441 Specifications Figure 5. 10 MHz Single-T one Spectrum, Low-Gain Amplifier Pa t h, 100 MS/s, DAC Interpolation Factor Set to 4 Note The noise floor in Figure 5 is lim ited by the measurement de vice. Refe r to the Ave r age Noise Density speci f i cations.
NI 5441 Specification s 14 ni.com Figure 6. Direct Path , 2-T one Spectrum (T ypical) Note The noise floor in Figure 6 is lim ited by the measurement de vice. Refe r to the Average Noise Density specif ications. Sample Clock Specif ication Va l u e Comments Sources 1.
© National Instruments Corpor ation 15 NI 5441 Specifications Sample Rate Rang e and Resolution Sample Clock Source Sample Rate Range Sample Rate Resolution — Divide-b y- N 23.84 S/s to 100 MS/s Settable to ( 100 MS/s) / N (1 ≤ N ≤ 4,194,304) High Resolution 10 S/s to 100 MS/s 1.
NI 5441 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 5441 Specifications Onboard Clock (Internal VCXO) Phase-Locked Loop (PLL) Reference Clock Specif ication Va l u e Co mments Clock Source Internal sample clocks can either be locked to a Reference Clock using a phase-locked loop or be deriv ed from the onboard VCXO frequency reference.
NI 5441 Specification s 18 ni.com CLK IN (Sample Clock and Reference Cloc k Input, Front Panel Connector) Specif ication Va l u e Comments Connector SMB (jack) — Direction Input — Destinations 1.
© National Instruments Corpor ation 19 NI 5441 Specifications PFI 0 and PFI 1 (Programmable Function Interfac e, Front Panel Connectors) Specif ication Va l u e Co mments Connectors T wo SMB (jacks) .
NI 5441 Specification s 20 ni.com DIGIT AL DA T A & CONTROL (DDC) Optional Front Panel Connector 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 21 NI 5441 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 D A T A & CONTR OL front panel connector .
NI 5441 Specification s 22 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 23 NI 5441 Specifications Delay from Start T rigger to CH 0 Analog Output with OSP Disabled. D A C Interpolation Factor T ypi cal Delay Refer to the t s2 documentation in the NI Signal Generators Help by na vigating to NI Signal Generators Help»Devices» NI 5441» Triggering» Trigger Timing .
NI 5441 Specification s 24 ni.com Markers 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 & CONTROL front panel connector) 3. PXI_T rig<0..6> (b ackplane connector) — Quantity One Marker per Se gment.
© National Instruments Corpor ation 25 NI 5441 Specifications Arbitrar y W aveform Generation Mode Specif ication Va l u e Co mments Memory Usage The NI 5441 uses the Synchronization and Memory Core (SMC) technology in which wav eforms and instru ctions share onboard memory .
NI 5441 Specification s 26 ni.com Minimum W av eform Size (Samples) T rigger Mode Arbitrary W av eform Mode Arbitrary Sequence Mode The Minimum W av eform Size is sample rate dependent in Arbitrary Sequence mode. For Co mp lex (I Q ) data Minimum W av eform Size is halved.
© National Instruments Corpor ation 27 NI 5441 Specifications Memory Limits (Co ntinued) Arbitrary Sequence Mode, Maximum W av eforms 262,000 Burst trigger: 32,000 2,097,000 Burst trigge r: 262,000 4,194,000 Burst trigger: 524,000 Condition: One or two segments in a sequence.
NI 5441 Specification s 28 ni.com Function Generation Mode Specif ication Va l u e Comments Standard W av eforms and Maximum Frequencies Wa v e f o r m Maximum Frequency — Sine 43 MHz Square 25 MHz .
© National Instruments Corpor ation 29 NI 5441 Specifications Onboard Signal Processing Figure 7. Onboard Signal Proces sing Block Diagram Specification Va l u e Comments IQ Rate OSP Interpolation Ra.
NI 5441 Specification s 30 ni.com Pre-Filter Offset Range –1.0 to +1.0 Applied after Pre-Filter Ga in Output Output = (User Data × Pre-Filter Gain) + Pre-Filter Of fset (–1 ≤ Output ≤ +1) Pre.
© National Instruments Corpor ation 31 NI 5441 Specifications Specification Va l u e Comments FIR Filter Types Filter T ype Para met er Minimum Maximum — Custom ——— Coef ficients are provided by the us er . Flat Passband 0.1 0.43 Lo wpass Filter that minimi zes ripple to: IQ Rate × Passband.
NI 5441 Specification s 32 ni.com Modulation Performance (Typical) Modulation Configuration Measurement T ype FIR Interpolation — 248 GSM Physical Layer 1 MER (Modulation Erro r Ratio) 46 dB 47 dB 42 dB Direct P ath ( 4 d B m P e a k ) , 25 MHz Carrier EVM (Error V ector Magnitude) <0 .
© National Instruments Corpor ation 33 NI 5441 Specifications Specif ication Va l u e Co mments Digital Perf ormance Maximum NCO Spur < –90 dBc Full-Scale Output FIR Interpolation IQ Rate Range (with 100 MS/s Sample Clock Rate) OSP Out of Band Suppression OSP Passband Ripple — 2 195 kS/s to 8.
NI 5441 Specification s 34 ni.com Figure 8. GSM Physical Layer 1 External Sample Cl ocking = 99.665 MHz Figure 9. GSM Physical Layer 1 Internal (High Resolution) Sample Clocking = 99.665 MHz Additional artifacts are due to High Resolution Clock spurs.
© National Instruments Corpor ation 35 NI 5441 Specifications Figure 10. CDMA 2000 Physical Layer 1 External Sample Cl ocking = 98.304 MHz Figure 11. CDMA 2000 Physical Layer 1 Internal (High Resolution) Sample Clocking = 98.304 MHz Additional artifacts are due to High Resolution Clock spurs.
NI 5441 Specification s 36 ni.com Figure 12. W-CDMA Physical Layer 1 External Sample Cl ocking = 92.16 MHz Figure 13. W-CDMA Physical Layer 1 Internal (High Resolution) Sample Clocking = 92.16 MHz Additional artifacts are due to High Resolution Clock spurs.
© National Instruments Corpor ation 37 NI 5441 Specifications Figure 14. DVB Physical Layer 1 External Sample Cl ocking = 96.88 MHz Artifacts at 15 and 35 MH z are due to 2x FIR In terpolation aliasing. Figure 15. DVB Physical Layer 1 Internal (High Resolution) Sample Clocking = 96.
NI 5441 Specification s 38 ni.com Calibration Power 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. The self-calibration is initiated by the user through the software and takes approximately 75 seconds to complete.
© National Instruments Corpor ation 39 NI 5441 Specifications Software Specif ication Va l u e Co mments Dri ver Software NI-FGEN 2.3 or later ve rsion. NI-FGEN is an IVI-compliant driv er that allows you to conf igure, control, and calibrate the NI 5441.
NI 5441 Specification s 40 ni.com Environment NI PXI-5441 Environment Note T o ensure that the NI PXI-5441 cools ef fectiv ely , follow the guidelines in the Maintain Forced-Air Cooling Note to Users incl uded in the NI 544 1 kit. The NI PXI-5441 is intended for indoor use only .
© National Instruments Corpor ation 41 NI 5441 Specifications Safety , Electromagnetic Compatibility , and CE Compliance Specification Va l u e Comments Safety The NI 5441 meets the requirements of t.
NI 5441 Specification s 42 ni.com Physical Specif ication Va l u e Comments Dimensions 3U, One Slot, PXI/ cPCI Module 2.0 × 13.0 × 21.6 cm (0.8 × 5.1 × 8.5 in) — We i g h t 345 g (12.1 oz) — Front Panel Connectors Label Functio n(s) Connector T ype — CH 0 Analog Output SMB (jack) CLK IN Samp le clock input and PLL reference clock input.
© National Instruments Corpor ation 43 NI 5441 Specifications T echnical Support Resources NI W eb Support National Instruments W eb support is your first stop for h elp in solving installation, configuration, and application problems and question s.
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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 National Instruments 5441 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 National Instruments 5441 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso National Instruments 5441 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul National Instruments 5441 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il National Instruments 5441, 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 National Instruments 5441.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il National Instruments 5441. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo National Instruments 5441 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.
