manualshive.com logo in svg

National Instruments PXIe-5665, Руководство по калибровке, Страница: 12 / 85

Поделиться
Скачать
National Instruments PXIe-5665 Скачать руководство пользователя страница 12

12

|

ni.com

|

PXIe-5665 Calibration Procedure

Characterizing Power Splitter Difference

1.

Connect the RF source 2 output to the power splitter input through the SMA (m)-to-
SMA (m) cable.

2.

Connect power sensor A to the reference output of the power splitter through the 
SMA (m)-to-SMA (m) cable.

3.

Connect power sensor B to the other output of the power splitter through the 
SMA (m)-to-SMA (m) cable. The completed setup is shown in Figure 1.

Figure 1.  

Power Splitter Difference Characterization Equipment Setup

4.

Set the RF source 2 frequency to 4 GHz.

5.

Set the RF source 2 power to 0 dBm.

6.

Measure the signal at 4 GHz with both power sensors.

7.

Set the power sensors calibration factor for the measurement frequency at 4 GHz.

8.

Calculate the 

Power Splitter at 4 GHz Correction Factor

 using the following formula:

Power Splitter at 4 GHz Correction Factor = Corrected Power Sensor B Power - Corrected 

Power Sensor A Power

1

RF Source 2

2

SMA (m)-to-SMA (m) cable

3

Power Splitter

4

Power Sensor A

5

Power Sensor B

6

Power Meter

4

6

1

5

3

2

Содержание PXIe-5665

Страница 1: ...s if the individual modules are calibrated and operating within specifications For more information about RF system calibration visit ni com manuals and search for Letter of Conformance Contents Softw...

Страница 2: ...oftware Calibrating the PXIe 5665 requires you to install the following software on the calibration system NI RFSA 2 5 or later NI Spectral Measurements Toolkit 2 5 or later You can download all requi...

Страница 3: ...onal Instruments 3 Test Equipment Table 1 lists the equipment NI recommends for the performance verification procedures If the recommended equipment is not available select a substitute using the mini...

Страница 4: ...0 5 Noise zero set and drift 0 5 full scale lowest range Reference power uncertainty 0 9 Reference output VSWR 1 04 1 Power sensors 2x Anritsu SC7400 Verifying frequency response Verifying absolute a...

Страница 5: ...2 Anritsu MG3692C Options 2A 3 4 15A and 22 Verifying frequency response Verifying absolute amplitude accuracy Verifying LO related spurs Verifying image rejection Verifying third order intermodulatio...

Страница 6: ...apabilities 50 termination three are included in the PXIe 5665 kit NI 778353 01 Verifying average noise level Verifying non input related residual spurs PXI Express chassis PXIe 1065 or PXIe 1075 PXI...

Страница 7: ...0 GHz 20 dB 3 5 mm f to 3 5 mm f adaptor Huber Suhner 31_PC35 50 0 2 199_N Frequency range DC to 18 GHz Impedance 50 Return loss DC to 1 5 GHz 35 dB 1 5 GHz to 6 0 GHz 30 dB 6 0 GHz to 18 0 GHz 20 dB...

Страница 8: ...ertion loss 8 5 dB 6 dB nominal Power rating 1 W Impedance 50 VSWR DC to 18 GHz 1 25 1 Equivalent output VSWR DC to 18 GHz 1 25 1 Connectors 3 5 mm f Anti distortion test fixture NI 166375A 01 Verifyi...

Страница 9: ...frequency standard Frequency 10 MHz Frequency accuracy 1 10 9 Torque wrench Refer to Test Conditions for torque wrench specifications Included in the PXIe 5665 cable accessory kit Table 1 Recommended...

Страница 10: ...ench appropriate for the type of RF connector that you are using NI recommends a 0 565 N m 5 lb in wrench for SMA connectors and a 0 90 N m 8 lb in wrench for 3 5 mm connectors Connect the frequency r...

Страница 11: ...n Explorer MAX Characterizing the Test System You use the measured response of the test system during verification tests The power splitter and attenuation response is measured at the RF input frequen...

Страница 12: ...shown in Figure 1 Figure 1 Power Splitter Difference Characterization Equipment Setup 4 Set the RF source 2 frequency to 4 GHz 5 Set the RF source 2 power to 0 dBm 6 Measure the signal at 4 GHz with b...

Страница 13: ...2 Output Power Characterization Equipment Setup 2 Set the RF source 2 frequency according to the first row in Table 2 or Table 3 as appropriate 1 RF Source 2 2 SMA m to SMA m Cable 3 3 5 mm f to 3 5...

Страница 14: ...racterization Frequencies Start Frequency Stop Frequency Step Size 100 033325 MHz 1 975033325 GHz 125 MHz 2 099966675 GHz 3 599966675 GHz 125 MHz 3 724966675 GHz 13 974966675 GHz 125 MHz 13 999966675...

Страница 15: ...to power sensor B through the anti distortion test fixture The completed equipment setup is shown in Figure 3 Figure 3 RF Source Power with Lowpass Filter Characterization Equipment Setup 2 Disable t...

Страница 16: ...er until this measured power is within 0 1 dB of the value listed in Table 4 The final RF source 2 power setting is the RF Source Power LPF for that frequency 7 Repeat steps 3 to 6 for all the frequen...

Страница 17: ...er sensor B through the anti distortion test fixture The completed equipment setup is shown in Figure 4 Figure 4 RF Source Power Combined Characterization Equipment Setup Frequencies 700 MHz 2 Set the...

Страница 18: ...sure the channel B power using the appropriate sensor calibration factor for the RF source 1 frequency 9 Repeat step 8 adjusting the RF source 1 power until the channel B power is within 0 1 dB of the...

Страница 19: ...er sensor B through the anti distortion test fixture The completed equipment setup is shown in Figure 5 Figure 5 RF Source Power Combined Characterization Equipment Setup Frequencies 700 MHz 2 Set the...

Страница 20: ...350 kHz 10 350 kHz 10 3598 95 MHz 350 kHz 10 350 kHz 10 3 6 GHz 13 8 GHz 200 350 kHz 10 350 kHz 10 13 99895 GHz 350 kHz 10 350 kHz 10 800 MHz 3 500 GHz 100 350 kHz 30 350 kHz 30 3598 95 MHz 350 kHz 3...

Страница 21: ...channel B power using the appropriate sensor calibration factor for the RF source 1 frequency 9 Repeat step 8 adjusting the RF source 1 power until the channel B power is within 0 1 dB of the power in...

Страница 22: ...s and the 3 5 mm f to 3 5 mm f adaptor The completed equipment setup is shown in Figure 6 Figure 6 RF Source Power Through Splitter Characterization Equipment Setup 1 RF Source 2 2 SMA m to SMA m Cabl...

Страница 23: ...emaining frequencies in Table 8 Characterizing RF Source Power with Splitter and Attenuator Note Prior to starting this procedure zero and calibrate the power sensor and define the power splitter refe...

Страница 24: ...0 dB attenuator The completed equipment setup is shown in Figure 7 Figure 7 RF Source Power with Splitter and Attenuator Characterization Equipment Setup 4 Set the RF source 2 power to 0 dBm 1 RF Sour...

Страница 25: ...ormulas DUT to Power Meter through Attenuator Path Loss Channel A Power Channel B Power RF Source to DUT through Attenuator Path Loss Channel B Power 8 Repeat steps 5 to 7 for all remaining frequencie...

Страница 26: ...cy 4 GHz Frequency span 0 Hz Reference level 0 dBm 7 Measure the power sensor A power 8 Correct the power sensor A measured power for the measurement frequency of 4 GHz 9 Correct the power sensor A me...

Страница 27: ...val Verification The performance verification procedures assume that adequate traceable uncertainties are available for the calibration references In the event of a failure during the verification of...

Страница 28: ...e 9 and Figure 10 Figure9 PXIe 56653 6 GHzVSAFrequencyResponseandAbsoluteAmplitudeAccuracy Verification Frequencies 10 MHz Equipment Setup 1 RF Source 2 2 Power Meter 3 SMA m to SMA m cable 4 Power Se...

Страница 29: ...able property settings Preamp Enabled Disabled Device Instantaneous Bandwidth 300 kHz PXIe 5665 14 GHz VSA Preselector Enabled Disabled 1 RF Source 2 2 Power Meter 3 SMA m to SMA m cable 4 Power Senso...

Страница 30: ...averages total indicate a test failure that you must diagnose 13 Calculate the Corrected Input Power using the following formula Corrected Input Power Measured Average Power DUT to Power Meter throug...

Страница 31: ...ency Response only for PXIe 5665 center frequencies less than or equal to 3 6 GHz 18 Repeat steps 9 to 17 for all reference levels listed in step 7 19 Repeat steps 8 to 18 for an instantaneous bandwid...

Страница 32: ...XIe 5665 14 GHz VSA 0 42 2 8 GHz to 3 6 GHz PXIe 5665 3 6 GHz VSA 0 45 0 35 PXIe 5665 14 GHz VSA 0 62 Refer to the As Found and As Left Limits section of this document for more information about as le...

Страница 33: ...SA 0 35 0 25 PXIe 5665 14 GHz VSA 0 46 0 38 10 MHz to 100 MHz PXIe 5665 3 6 GHz VSA 0 95 0 60 PXIe 5665 14 GHz VSA 1 06 0 73 100 MHz to 1 7 GHz PXIe 5665 3 6 GHz VSA 0 70 0 50 PXIe 5665 14 GHz VSA 0 8...

Страница 34: ...MHz to 100 MHz PXIe 5665 3 6 GHz VSA 1 10 0 80 PXIe 5665 14 GHz VSA 1 45 100 MHz to 2 8 GHz PXIe 5665 3 6 GHz VSA 0 80 0 60 PXIe 5665 14 GHz VSA 1 15 2 8 GHz to 3 6 GHz PXIe 5665 3 6 GHz VSA 0 80 0 60...

Страница 35: ...Hz 5 V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL PORTS 50 ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE TTL...

Страница 36: ...ce Level 50 dBm Resolution Bandwidth 300 Hz RF Attenuation 0 dB FFT Window Type Blackman Harris PXIe 5665 14 GHz VSA Preselector Enabled Disabled 1 50 termination OUT NI PXIe 5653 Synthesizer REF IN 1...

Страница 37: ...peat steps 4 to 10 for frequencies less than or equal to 3 6 GHz with the PXIe 5665 preamplifier enabled 12 PXIe 5665 14 GHz VSA Repeat steps 4 to 10 for frequencies greater than 3 6 GHz with the PXIe...

Страница 38: ...3 6 GHz 148 150 3 6 GHz to 7 5 GHz 148 150 7 5 GHz to 8 5 GHz 146 147 8 5 GHz to 12 GHz 147 148 12 GHz to 14 GHz 145 146 Refer to the As Found and As Left Limits section of this document for more info...

Страница 39: ...information about support resources or service requests Table 20 Average Noise Verification Test Limits Preamplifier Disabled PXIe 5665 14 GHz VSA Preselector Enabled Frequency As Found Limit dBm Hz A...

Страница 40: ...10 MHz 5 V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL PORTS 50 ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE...

Страница 41: ...ith 25 MHz bandwidth Resolution Bandwidth 2 kHz RF Attenuation 0 dB Reference Level 60 dBm FFT Window Type Flat Top PXIe 5665 14 GHz VSA Preselector Enabled Disabled 1 50 Termination OUT NI PXIe 5653...

Страница 42: ...us Level to the verification test limits in Table 21 10 Close the PXIe 5665 session If the non input related spurs residual spurs verification procedure determines that the PXIe 5665 is outside its li...

Страница 43: ...t Setup 1 RF Source 2 2 Spectrum Analyzer 3 SMA m to SMA m cable 4 SMA m to SMA m cable 5 Power Splitter 6 3 5 mm m to 3 5 mm m Adaptor ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE TTL 6 3 Vp p MA...

Страница 44: ...V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL PORTS 50 NI PXIe 5605 Downconverter 20 Hz 14 GHz ACCESS ACTIVE CLK...

Страница 45: ...nabled Disabled 6 Set the RF source 2 mode to Single Frequency 7 Connect the frequency reference source to the spectrum analyzer reference frequency input 8 Set the spectrum analyzer reference source...

Страница 46: ...mplitudes to settle Note Settling times are a characteristic of the RF source device Refer to the Test Equipment section of this document for a list of NI recommended source devices and device specifi...

Страница 47: ...500 Hz of an RF source 2 spurious response is considered to be from the RF source 2 because of this frequency spread 19 Eliminate any RF source 2 spurious responses from the list of target spurs a Tun...

Страница 48: ...ession If the LO related spurs sideband spurs verification procedure determines that the PXIe 5665 is outside its limits refer to Worldwide Support and Services for information about support resources...

Страница 49: ...Hz 5 V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL PORTS 50 ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE TTL...

Страница 50: ...MHz 25 MHz for the PXIe 5665 with 25 MHz bandwidth RF Attenuation 10 dB Reference Level 0 dBm PXIe 5665 14 GHz VSA Preselector Enabled Enabled 1 RF Source 2 2 SMA m to SMA m cable OUT NI PXIe 5653 Syn...

Страница 51: ...at RF Test Frequency 375 MHz where Test Frequency is the PXIe 5665 center frequency 8 For each image and test frequency in the list from step 7 and the PXIe 5665 center frequency from step 5 set the...

Страница 52: ...e Rejection at each of the image frequencies using the following equation Image Rejection Response Correction at test frequency Response Correction at each image frequency 13 Repeat steps 5 to 12 for...

Страница 53: ...SMA m to SMA m cable OUT NI PXIe 5653 Synthesizer REF IN 10 MHz 5 V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL...

Страница 54: ...test fixture to use the 700 MHz combiner path 1 RF Source 1 2 RF Source 2 3 SMA m to SMA m cable 4 SMA m to SMA m cable 5 Anti Distortion Test Fixture 6 SMA m to SMA m cable OUT NI PXIe 5653 Synthesi...

Страница 55: ...owing four frequencies IMD Low Frequency Test Frequency 1 05 MHz P1 Frequency Test Frequency 350 kHz P2 Frequency Test Frequency 350 kHz IMD High Frequency Test Frequency 1 05 MHz where IMD is the int...

Страница 56: ...r respectively 19 Calculate the upper and lower third order intercept TOI points using the following equations TOI Upper P1 Power P2 Power IMD High Power 2 TOI Lower P2 Power P1 Power IMD Low Power 2...

Страница 57: ...VSA Third Order Intermodulation Frequencies 700 MHz Verification Equipment Setup 1 RF Source 1 2 RF Source 2 3 SMA m to SMA m cable 4 SMA m to SMA m cable 5 Anti Distortion Test Fixture 6 SMA m to SM...

Страница 58: ...istortion test fixture to use the 700 MHz combiner path 1 RF Source 1 2 RF Source 2 3 SMA m to SMA m cable 4 SMA m to SMA m cable 5 Anti Distortion Test Fixture 6 SMA m to SMA m cable OUT NI PXIe 5653...

Страница 59: ...lues Preamplifier disabled 10 dBm Preamplifier enabled 30 dBm 9 For each test frequency from Table 32 or Table 33 calculate the following four frequencies IMD Low Frequency Test Frequency 1 05 MHz P1...

Страница 60: ...edure 16 Measure the power spectrum with the PXIe 5665 17 Find the highest peak within the measurement bandwidth This value is the IMD Low Power 18 Repeat steps 11 to step 16 for the PXIe 5665 center...

Страница 61: ...information about support resources or service requests Table 34 TOI Frequencies 700 MHz Verification Test Limits Preamplifier Disabled PXIe 5665 14 GHz VSA Preselector Disabled Center Frequency As F...

Страница 62: ...esizer REF IN 10 MHz 5 V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL PORTS 50 ACCESS ACTIVE CLK IN CLK OUT PFI 1...

Страница 63: ...to use the 470 MHz Lowpass Filter path 1 RF Source 1 2 RF Source 2 3 SMA m to SMA m Cable 4 SMA m to SMA m Cable 5 Anti Distortion Test Fixture 6 SMA m to SMA m Cable OUT NI PXIe 5653 Synthesizer REF...

Страница 64: ...rst row of Table 36 9 Configure the anti distortion test fixture to use the appropriate Lowpass Filter Path as shown in Table 37 10 Commit the PXIe 5665 settings to hardware Table 36 SHI Verification...

Страница 65: ...andwidth BW This value is the Peak Power 16 Calculate the Noise Measurement BW and the Noise Center Frequency CF using the following equations 17 Calculate the Power in Band for the spectrum from step...

Страница 66: ...uency MHz Stop Frequency Step Size 300 0333125 1 3000333125 GHz 200 MHz 1 800 Table 39 SHI Verification Test Limits Preamplifier Disabled PXIe 5665 14 GHz VSA Preselector Enabled Source Frequency Devi...

Страница 67: ...is applied at the RF IN connector of the PXIe 5665 Note The power level you apply differs whether you are verifying the as found or as left limit Table 40 SHI Verification Test Limits Preamplifier En...

Страница 68: ...3 Synthesizer REF IN 10 MHz 5 V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL PORTS 50 ACCESS ACTIVE CLK IN CLK OUT...

Страница 69: ...1 RF Source 1 2 RF Source 2 3 SMA m to SMA m Cable 4 SMA m to SMA m Cable 5 Anti Distortion Test Fixture 6 SMA m to SMA m Cable OUT NI PXIe 5653 Synthesizer REF IN 10 MHz 5 V p p MAX REF OUT 10 MHz 1...

Страница 70: ...te 11 Set the RF source 1 power to the RF Source 1 Programmed Power in Table 43 or Table 44 as appropriate 12 Set the PXIe 5665 reference level according to Table 43 or Table 44 as appropriate Table 4...

Страница 71: ...er at the center frequency and record this value as the Small Tone First Measurement RF source 1 output disabled or as the Small Tone Second Measurement RF source 1 output enabled 17 Repeat steps 7 to...

Страница 72: ...MHz As Found 1 8 As Left 1 9 1 Refer to the As Found and As Left Limits section of this document for more information about as left limits The device specification calls for less than or equal to 1 d...

Страница 73: ...XIe 5653 Synthesizer REF IN 10 MHz 5 V p p MAX REF OUT 10 MHz 1 5 V p p MAX REF OUT 100 MHz 1 5 V p p MAX LO3 800 MHz LO2 4 GHz LO1 3 2 GHz 8 3 GHz ESD SENSITIVE OUT ALL PORTS 50 ACCESS ACTIVE CLK IN...

Страница 74: ...ource 1 2 RF Source 2 3 SMA m to SMA m Cable 4 SMA m to SMA m Cable 5 Anti Distortion Test Fixture 6 SMA m to SMA m Cable OUT NI PXIe 5653 Synthesizer REF IN 10 MHz 5 V p p MAX REF OUT 10 MHz 1 5 V p...

Страница 75: ...requency 10 Set the PXIe 5665 center frequency according to the values listed in Table 47 or Table 48 11 Set the RF source 2 power to the RF Source 2 Programmed Power from Table 49 or Table 50 as appr...

Страница 76: ...s Left 9 1 1 701 GHz to 3 601 GHz As Found 6 0 As Left 7 1 RF Source 2 Programmed Power 800 MHz to 3 600 GHz Both 24 PXIe 5665 Reference Level 800 MHz to 3 600 GHz Both 0 PXIe 5665 14 GHz VSA RF Sourc...

Страница 77: ...edure 16 Read the power spectrum from the PXIe 5665 Table 50 Gain Compression Verification Test Settings Preamplifier Enabled Device Setting Frequency Range Limit Value dBm PXIe 5665 3 6 GHz VSA RF So...

Страница 78: ...2 Repeat steps 6 to 20 with the RF source 1 output enabled 23 Calculate the PXIe 5665 Gain Compression using the following equation Gain Compression Small Tone First Measurement Small Tone Second Meas...

Страница 79: ...ection of this document 1 Connect the RF source 2 output to the PXIe 5605 RF IN connector using the SMA m to SMA m cable 2 Connect power sensor A to the PXIe 5605 LO3 OUT connector using the SMA m to...

Страница 80: ...Sensor B 8 10 dB Attenuator 1 2 3 5 6 7 4 ACCESS ACTIVE CLK IN CLK OUT PFI 1 ESD SENSITIVE TTL 6 3 Vp p MAX 2 Vp p NOM 20 dBm MAX 50 50 50 NI PXIe 5622 16 Bit IF Digitizer IF IN ESD SENSITIVE ACCESS A...

Страница 81: ...reate a new session for the PXIe 5665 1 RF Source 2 2 Spectrum Analyzer 3 Power Meter 4 SMA m to SMA m Cable 5 SMA m to SMA m Cable 6 Power Sensor A 7 Power Sensor B 8 10 dB Attenuator OUT NI PXIe 565...

Страница 82: ...he reading for the LO1 frequency 17 Measure the LO2 power with the spectrum analyzer Correct the reading for the 4 GHz LO2 frequency using the following equation LO2 Power Spectrum Analyzer Reading Sp...

Страница 83: ...r Path MHz Start MHz Stop MHz Insertion Loss dB max VSWR max 470 10 470 2 5 1 75 735 470 735 2 5 1 75 1 150 735 1 150 2 5 1 75 1 800 1 150 1 800 2 5 1 75 2 530 1 800 2 530 2 5 1 75 3 550 2 530 3 550 2...

Страница 84: ...t either input or output ports The unused input port is terminated in 50 Isolation is the loss between input ports The output port is terminated in 50 VSWR includes any port All other ports are termin...

Страница 85: ...ccess to everything from troubleshooting and application development self help resources to email and phone assistance from NI Application Engineers Visit ni com services for NI Factory Installation S...

Отзывы:

Нет отзывов