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National Instruments PXI-5663 Calibration Procedure Download Page 27

NI PXI-5663 Calibration Procedure

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© National Instruments

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27

15. Adjust the PN source power using the following formula:

Channel A Power

 + 

RF Input Calibration Factor 

= 

Reference Level

 ±1 dB

Reference Level 

is the value from Table 17. Use the appropriate RF frequency for the 

channel A sensor. Calculation of the 

RF Input Calibration Factor

 may require 

interpolation.

16. Use the niRFSA Property Node to set the following properties:

•

Spectrum Averaging Mode to 

RMS Averaging

•

Spectrum Number of Averages to 

20

•

Spectrum Resolution Bandwidth Type to 

ENBW

•

Spectrum Units to 

Volts Squared

or set the following attributes:
•

NIRFSA_ATTR_SPECTRUM_AVERAGING_MODE

 to 

NIRFSA_VAL_RMS_AVERAGING

 

•

NIRFSA_ATTR_SPECTRUM_NUMBER_OF_AVERAGES

 to 20

•

NIRFSA_ATTR_RESOLUTION_BANDWIDTH_TYPE 

to

 NIRFSA_VAL_RBW_ENBW

•

NIRFSA_ATTR_POWER_SPECTRUM_UNITS

 to 

NIRFSA_VAL_VOLTS_SQUARED

 

17. Set the NI 5663 to read the power spectrum using the niRFSA Read Power Spectrum VI or 

the 

niRFSA_ReadPowerSpectrumF64

 function.

18. Get the spectrum information using the niRFSA Get Spectral Info for SMT VI or the 

niRFSA_GetSpectralInfoForSMT

 function. This spectrum is used in steps 19 and 21.

19. Set the parameters for the carrier level using the SMT Spectrum Unit Conversion VI or the 

SmtSpectrumUnitConversion

 function:

•

units

 to 

dBm

•

peak scaling

 to 

rms

•

psd?

 (called 

psdOnOff

 in the function) to FALSE

•

impedance

 (called 

impedanceOhm

 in the function) to 

50

20. Perform a peak search using the SMT Spectrum Peak Search VI or the 

SmtSpectrumPeakSearch

 function. Set the 

peak search setting

 to 

Single Max Peak

 

with a peak threshold 3 dB below the NI 5663 reference level. The peak value is the 

Signal 

Peak

 used in step 23 and the frequency information is used in step 22.

21. Set the parameters for the noise level using the SMT Spectrum Unit Conversion VI:

•

units

 to 

dBm

•

peak scaling

 to 

rms

•

psd?

 (called 

psdOnOff

 in the function) to TRUE

•

impedance

 (called 

impedanceOhm

 in the function) to 

50

22. Select the value of the element in the array from step 21 corresponding to the frequency of 

the signal peak measured in step 20. This value is the 

PSD

 which you use in step 23.

Summary of Contents for PXI-5663

Page 1: ... RF Input Calibration 6 As Found and As Left Limits 9 Verification Procedures 9 Verifying Reference Accuracy 9 Absolute Accuracy Verification 9 Average Noise Level Verification 14 LO Output Power Verification 17 Non Input Related Spurs Residual Spurs Verification 19 Sideband Spurs Verification 21 Phase Noise Verification 25 Appendix A Non Input Related Spurs Test Frequencies 28 Where to Go for Sup...

Page 2: ... 5663 Specifications NI 5661 5663 5663E RF Vector Signal Analyzers Getting Started Guide NI RF Vector Signal Analyzers Help which includes LabVIEW and LabWindows CVI application programming references These documents are installed with NI RFSA You also can find the latest versions of these documents at ni com manuals Calibration Interval NI recommends that you perform a complete calibration for th...

Page 3: ...5 Noise 0 5 full scale lowest range Zero set and drift 0 5 full scale lowest range Reference power uncertainty 0 9 Reference output VSWR 1 04 1 Power sensor A Power sensor B Anritsu MA2473D or equivalent Input VSWR 10 MHz to 50 MHz 1 9 1 50 MHz to 150 MHz 1 17 1 150 MHz to 2 GHz 1 12 1 2 GHz to 12 4 GHz 1 22 1 Linearity 55 dBm to 20 dBm 1 8 Rise time 4 µs Calibration factor uncertainty 50 MHz 1 48...

Page 4: ...igid cable NI 198776A 01 SMA m SMA m semi flexible cable NI 190412B 03 SMA m SMA f right angle adapter Huber Suhner 53 SMA 50 0 2 111_N 3 5 mm m to 3 5 mm m adapter Huber Suhner 32 PC35 50 0 2 199_NE 3 5 mm f power splitter 2 resistor type Aeroflex 1593 SMA m to SMA m cable 36 in Huber Suhner ST 18 SMAm SMAm 36 3 5 mm m to 3 5 mm f 30 dB attenuator Huber Suhner 6630 SMA 50 1 199NE N m to 3 5 mm f ...

Page 5: ...n lb Agilent 8710 1582 or equivalent to tighten any connection with an SMA connector Use a 3 5 mm torque wrench 8 in lb Agilent 8710 1765 or equivalent to tighten 3 5 mm or 2 92 mm K connections without an SMA connector Lock all test equipment to the same reference frequency Refer to the NI 5663 5663E Timing Configurations topic in the NI RF Vector Signal Analyzers Help Calibration Procedures The ...

Page 6: ...nt damaging any DUTs or test equipment Power Splitter Reference Output Designate either of the two outputs of the power splitter as the reference output Power Sensor Zero Calibration 1 Connect channel A of the power meter to power sensor A 2 Connect channel B of the power meter to power sensor B 3 Zero and calibrate the power sensors using the appropriate frequency for the calibration RF Input Cal...

Page 7: ... 20 30 100 200 300 1 000 MHz and so on 5 Calculate the RF input calibration factor dB for each frequency using the following equation RF Input Calibration Factor Channel B Power Channel A Power RF Input Calibration with Attenuator Use the results of the RF Input Calibration with Attenuator procedure in the absolute accuracy test 1 Connect the power splitter input to the RF source output through th...

Page 8: ...y for the power sensor for all frequencies between 10 MHz and 7 GHz with the RF source power set to 0 dBm Note Use the log frequency progression 10 20 30 100 200 300 1 000 MHz and so on 5 Calculate the RF input attenuated calibration factor dB for each frequency using the following equation RF Input Attenuated Calibration Factor Channel B Power Channel A Power 1 RF Source 2 Power Splitter 3 Power ...

Page 9: ... related spurs residual spurs Sideband spurs Phase noise Verification of the NI 5663 is complete only after you have successfully completed all tests in this section Caution The connectors on the DUT and test equipment are fragile Perform the instructions in this procedure with great care to prevent damaging any DUTs or test equipment Verifying Reference Accuracy The NI 5663 reference accuracy spe...

Page 10: ...Clock VI or the niRFSA_ConfigureRefClock function 8 Set the NI 5663 to make a spectrum acquisition using the niRFSA Configure Acquisition Type VI or the niRFSA_ConfigureAcquisitionType function 1 RF Source 2 Power Splitter 3 Power Sensor A 4 Power Meter 5 Power Meter Channel A 6 50 Ω Terminator 7 30 dB Attenuator Used for reference levels 30 dBm 1 ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE T...

Page 11: ...g the niRFSA Commit VI or the niRFSA_Commit function 13 Set the RF source to the center frequency according to Table 4 14 Adjust the RF source power using the following equation Channel A Power RF Input Attenuated Calibration Factor Reference Level 1 dB Reference Level is the value from Table 3 Use the appropriate RF frequency for the channel A sensor Calculation of the RF Input Attenuated Calibra...

Page 12: ...o power sensor A 3 Connect the other power splitter output to the NI 5601 RF IN connector through the 3 5 mm m to 3 5 mm m adapter 4 Connect a 50 Ω terminator to the NI 5601 LO OUT connector Figure 3 in the preceding section shows the test limits 5 Create a new session for the NI 5663 using the niRFSA Initialize VI or the niRFSA_init function 6 Perform an internal self calibration on the NI 5622 u...

Page 13: ... the niRFSA_GetSpectralInfoForSMT function 18 Perform a peak search using the SMT Spectrum Peak Search VI Set the peak threshold to 20 dB below the NI 5663 reference level 19 Sort the peaks and record the maximum Save this value as RFSA Power 20 Calculate the Absolute Accuracy using the following formula Absolute Accuracy RFSA Power Channel A Power RF Input Calibration Factor Calculation of the RF...

Page 14: ..._SelfCal function 4 Lock the NI PXI 5652 to the reference used by the test equipment Use the niRFSA Configure Ref Clock VI or the niRFSA_ConfigureRefClock function 5 Set the NI 5663 to make a spectrum acquisition using the niRFSA Configure Acquisition Type VI or the niRFSA_ConfigureAcquisitionType function 1 50 Ω Terminator ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE TTL 6 3 Vp p MAX 2 Vp p N...

Page 15: ...stance of the niRFSA Configure Spectrum Frequency VI or the niRFSA_ConfigureSpectrumFrequencyCenterSpan function 10 Use the niRFSA Property Node to set the following properties Spectrum Averaging Mode to RMS Averaging Spectrum Number of Averages to 20 Spectrum Resolution Bandwidth Type to ENBW Spectrum Units to Volts Squared Table 6 NI 5663 Settings Frequency Range RF Attenuation Reference Level S...

Page 16: ...rties or attributes using the SMT Spectrum Unit Conversion VI or the SmtSpectrumUnitConversion function units to dBm peak scaling to RMS psd or psdOnOff to TRUE impedance to 50 15 Calculate the mean value of the spectrum This value is the NI 5663 Average Noise Level 16 Compare the NI 5663 Average Noise Level to the test limits in Table 8 17 Repeat steps 6 to 16 for all combinations of settings in ...

Page 17: ...I 5663 LO OUT connector through the SMA to SMA right angle adapter Figure 5 shows the completed equipment setup Figure 5 LO Output Power Equipment Setup 7 Create a new session for the NI 5663 using the niRFSA Initialize VI or the niRFSA_init function 1 RF Source 2 50 Ω Terminator 3 Power Splitter 4 Power Sensor A 5 Power Meter 6 Power Meter Channel A 7 Power Meter Channel B 8 Power Sensor B 1 ACCE...

Page 18: ... Adjust the RF source power to satisfy the following equation Channel A Power RF Input Calibration Factor 0 dBm 0 5 dB Use the appropriate RF frequency for the channel A sensor Calculation of the RF Input Calibration Factor may require interpolation b Measure and record the channel B power This value is the LO Output Power Use the appropriate RF frequency for the channel B sensor 13 Compare the LO...

Page 19: ... completed equipment setup Figure 6 Non Input Related Spurs Equipment Setup 3 Create a new session for the NI 5663 using the niRFSA Initialize VI or the niRFSA_init function 4 Perform an internal self calibration on the NI 5622 using the niRFSA Self Cal VI or the niRFSA_SelfCal function 1 50 Ω Terminator ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE TTL 6 3 Vp p MAX 2 Vp p NOM 20 dBm MAX 50 Ω 5...

Page 20: ...igure Spectrum Frequency VI or the niRFSA_ConfigureSpectrumFrequencyCenterSpan function 10 Use the niRFSA Property Node to set the following properties Spectrum Averaging Mode to RMS Averaging Spectrum Number of Averages to 10 Spectrum Units to Volts Squared or set the following attributes NIRFSA_ATTR_SPECTRUM_AVERAGING_MODE to NIRFSA_VAL_RMS_AVERAGING NIRFSA_ATTR_SPECTRUM_NUMBER_OF_AVERAGES to 10...

Page 21: ...5663 Spurious Level to the verification test limits in Table 12 16 Repeat steps 9 to 15 for all settings in Table 11 17 Close the NI 5663 session using the niRFSA Close VI or the niRFSA_close function If the results are within the selected test limit the device has passed this portion of the verification Sideband Spurs Verification Table 16 shows the test limits 1 Connect the RF source to the powe...

Page 22: ..._ConfigureRefClock function 7 Set the NI 5663 to make a spectrum acquisition using the niRFSA Configure Acquisition Type VI or the niRFSA_ConfigureAcquisitionType function 1 RF Source 2 Power Splitter 3 Power Sensor A 4 Power Meter 5 Power Meter Channel A 6 50 Ω Terminator 1 ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE TTL 6 3 Vp p MAX 2 Vp p NOM 20 dBm MAX 50 Ω 50 Ω 50 Ω NI PXIe 5622 16 Bit I...

Page 23: ...for the span selected in step 9 using the niRFSA Configure Resolution Bandwidth VI or the niRFSA_ConfigureResolutionBandwidth function 11 Use the niRFSA Property Node to set the following properties Spectrum Averaging Mode to RMS Averaging Spectrum Number of Averages to 10 or set the following attributes NIRFSA_ATTR_SPECTRUM_AVERAGING_MODE to NIRFSA_VAL_RMS_AVERAGING NIRFSA_ATTR_SPECTRUM_NUMBER_OF...

Page 24: ...trumPeakSearch function with the following parameter settings single multiple called searchCriteria in the function to Multiple Peaks threshold to 150 dBm 18 Sort the spurs using the search span shown in Table 15 The values found are the Spurious Sideband Levels for this span 19 Calculate the Spurious Level using the following formula Spurious Level Carrier Level Spurious Sideband Level Spurious L...

Page 25: ...3 5 mm f adapter and 3 5 mm to 3 5 mm cable 2 Connect the power splitter reference output to power sensor A 3 Connect the other power splitter output to the NI 5601 RF IN connector through the 3 5 mm m to 3 5 mm m adapter Figure 8 Phase Noise Equipment Setup 1 PN Source 2 Power Splitter 3 Power Sensor A 4 Power Meter 5 Power Meter Channel A 6 50 Ω Terminator 1 ACCESS ACTIVE CLK IN CLK OUT PFI 1 ES...

Page 26: ...ition using the niRFSA Configure Acquisition Type VI or the niRFSA_ConfigureAcquisitionType function 10 Set the NI 5663 resolution bandwidth according to Table 17 using the niRFSA Configure Resolution Bandwidth VI or the niRFSA_ConfigureResolutionBandwidth function 11 Commit the settings to hardware using the niRFSA Commit VI or the niRFSA_Commit function 12 Perform an internal self calibration on...

Page 27: ...rSpectrumF64 function 18 Get the spectrum information using the niRFSA Get Spectral Info for SMT VI or the niRFSA_GetSpectralInfoForSMT function This spectrum is used in steps 19 and 21 19 Set the parameters for the carrier level using the SMT Spectrum Unit Conversion VI or the SmtSpectrumUnitConversion function units to dBm peak scaling to rms psd called psdOnOff in the function to FALSE impedanc...

Page 28: ...spurs are created by mechanisms within the NI 5663 and are not RF signals They can be treated as if they are RF signals however and you can observe them at particular tunings of the NI 5663 Table 20 gives the NI 5663 tuned frequencies and the RF frequency that would correspond to the spur frequency Table 19 Phase Noise Verification Test Limits NI 5663 Tuned Frequency Test Limit 500 MHz 112 dBc Hz ...

Page 29: ...0 1 012 5 1 025 1 037 5 1 180 1 199 92 1 200 1 200 1 204 1 199 92 1 225 1 225 1 245 1 265 1 375 1 400 1 400 1 400 1 425 1 425 1 450 1 438 152174 1 975 1 968 843284 2 050 2 072 977941 2 125 2 113 146552 2 150 2 165 625 2 200 2 211 948529 2 250 2 275 Table 20 Non Input Related Spurs Test Frequencies Continued NI 5663 Tuned Frequency MHz Equivalent RF Frequency for Spur MHz ...

Page 30: ...118557 3 450 3 454 411765 3 500 3 519 53125 3 525 3 522 916667 3 550 3 561 970339 3 575 3 594 054878 3 600 3 615 625 3 650 3 674 489796 3 675 3 681 25 3 725 3 743 854167 3 750 3 764 914773 3 850 3 873 798077 3 900 3 923 4375 3 925 3 949 056604 3 935 3 955 694446 4 025 4 029 375 4 035 4 035 182921 4 475 4 478 90625 Table 20 Non Input Related Spurs Test Frequencies Continued NI 5663 Tuned Frequency ...

Page 31: ...461 837121 5 475 5 471 09375 5 800 5 822 96875 5 820 5 800 72 5 845 5 851 5 5 875 5 857 276119 5 900 5 888 811728 5 925 5 906 25 5 950 5 934 002976 5 975 5 959 40594 6 000 5 987 575301 6 025 6 009 191176 6 075 6 060 661765 6 225 6 222 861842 6 250 6 249 614198 6 275 6 273 094512 6 425 6 427 667683 6 425 6 443 494212 Table 20 Non Input Related Spurs Test Frequencies Continued NI 5663 Tuned Frequenc...

Page 32: ...ces to email and phone assistance from NI Application Engineers A Declaration of Conformity DoC is our claim of compliance with the Council of the European Communities using the manufacturer s declaration of conformity This system affords the user protection for electromagnetic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com certification If your pro...

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