National Instruments PXIe-5654 Calibration Procedure
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National Instruments PXIe-5654 Calibration Procedure

250 khz to 20 ghz rf analog signal generator with amplitude extender
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CALIBRATION PROCEDURE
PXIe-5654 with PXIe-5696
250 kHz to 20 GHz RF Analog Signal Generator with Amplitude
Extender
This document contains the verification and adjustment procedures for the PXIe-5654 RF
Analog Signal Generator when used with the PXIe-5696 Amplitude Extender.
Refer to
ni.com/calibration
Contents
Required Software.....................................................................................................................2
Related Documentation.............................................................................................................2
Test Equipment..........................................................................................................................2
Test Conditions..........................................................................................................................6
Initial Setup............................................................................................................................... 7
Test System Characterization....................................................................................................7
Zeroing and Calibrating the Power Sensor....................................................................... 7
Characterizing the Power Splitter..................................................................................... 7
As-Found and As-Left Limits................................................................................................... 9
Verification..............................................................................................................................10
Verifying RF OUT Frequency Accuracy........................................................................ 10
Verifying RF OUT Phase Noise......................................................................................12
Verifying RF OUT Amplitude Accuracy........................................................................ 15
Verifying RF OUT Maximum Power..............................................................................22
Optional Verification...............................................................................................................24
Verifying PULSE IN Operation...................................................................................... 24
Adjustment.............................................................................................................................. 26
Measuring RF Attenuator Path Input Power...................................................................26
Adjusting RF Attenuator Path.........................................................................................28
Adjusting RF Attenuator Accuracy.................................................................................29
Measuring Amplifier Path Input Power.......................................................................... 31
Adjusting Amplitude Accuracy (Low Harmonic Paths).................................................32
Adjusting Amplitude Accuracy (High Power Paths)...................................................... 34
Adjusting ALC................................................................................................................ 35
Reverification..........................................................................................................................37
Updating Calibration Date and Time...................................................................................... 37
Worldwide Support and Services............................................................................................ 37
for more information about calibration solutions.

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Summary of Contents for National Instruments PXIe-5654

  • Page 1: Table Of Contents

    PXIe-5654 with PXIe-5696 250 kHz to 20 GHz RF Analog Signal Generator with Amplitude Extender This document contains the verification and adjustment procedures for the PXIe-5654 RF Analog Signal Generator when used with the PXIe-5696 Amplitude Extender. Refer to ni.com/calibration for more information about calibration solutions.

  • Page 2: Required Software

    Required Software Calibrating the PXIe-5654 requires you to install the following package on the calibration system: • NI-RFSG 14.5 or later You can download all required software from ni.com/downloads. The software supports programming the verification procedures in the LabVIEW, C, and ™...
  • Page 3 8040C Rubidium • RF OUT amplitude Frequency accuracy: Frequency Standard accuracy ±1 × 10 • RF OUT maximum power • PULSE IN operation Adjustments: • Frequency reference accuracy PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 3...
  • Page 4 Length: 12 in. cable, 12 in. KMS-160-12.0- • RF OUT amplitude Loss: <0.5 dB/ft. (x2) accuracy (typical) at 20 GHz • RF OUT maximum Impedance: 50 Ω power Adjustments: • RF attenuator path 4 | ni.com | PXIe-5654 with PXIe-5696 Calibration Procedure...
  • Page 5 The connector on the power sensor listed above may be difficult to access with a torque wrench when there is adjacent connected hardware. Use this adapter if you need to extend the capabilities of the power sensor to make it accessible by a torque wrench. PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 5...

  • Page 6: Test Conditions

    • Allow a warm-up time of at least 30 minutes after the chassis is powered on. The warm- up time ensures that the PXIe-5654 and PXIe-5696 are at a stable operating temperature. • In each verification procedure, insert a delay between configuring all instruments and acquiring the measurement.

  • Page 7: Initial Setup

    • Frequencies less than and equal to 10 GHz apply to the 10 GHz and 20 GHz PXIe-5654; frequencies above 10 GHz apply only to the 20 GHz PXIe-5654. • The PXIe-5654 must be verified as a stand-alone device using the PXIe-5654 Calibration Procedure before performing the procedures in this document.
  • Page 8 REF OUT connector to the PXIe-5654 REF IN connector using a BNC(m)-to-SMA(m) cable. Connect the power meter power sensor to the PXIe-5654 RF OUT front panel connector. Create a new device session for the PXIe-5654. Create a list of test frequencies using the values in the following table.

  • Page 9: As-Found And As-Left Limits

    As-Found and As-Left Limits The as-found limits are the published specifications for the PXIe-5654 with PXIe-5696. NI uses these limits to determine whether the PXIe-5654 with PXIe-5696 meets the PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 9...

  • Page 10: Verification

    Connect the signal source analyzer REF OUT connector to the PXIe-5654 REF IN connector using a BNC(m)-to-SMA(m) cable. Related Information For instructions on verifying the PXIe-5654 as a stand-alone device, refer to the PXIe-5654 Calibration Procedure. Verifying RF OUT Frequency Accuracy This procedure verifies that the internal signal generation circuitry is adjusted for correct frequency accuracy.
  • Page 11 Create a new device session for the PXIe-5654 with PXIe-5696. Create a list of test frequencies, including endpoints, containing 100 MHz and 1 GHz, according to the frequency range of your PXIe-5654 model, with 1 GHz increments. Configure the PXIe-5654 with PXIe-5696 using the following settings: •...

  • Page 12: Verifying Rf Out Phase Noise

    Connect the PXIe-5654 to the PXIe-5696. Connect the PXIe-5696 RF OUT front panel connector to the signal source analyzer RF input connector using the K(m)-to-K(m) cable. The hardware setup is shown in the following figure. 12 | ni.com | PXIe-5654 with PXIe-5696 Calibration Procedure...
  • Page 13 Measurement span from 100 Hz to 1 MHz (offset frequencies) Use the signal source analyzer to perform a manual frequency sweep at the settings listed in the following table. PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 13...
  • Page 14 3 kHz 1,000 300 kHz to 1 MHz 10 kHz 1,000 Configure the PXIe-5654 with PXIe-5696 using the following settings: • Frequency: 500 MHz • Power Level: +8 dBm Commit the settings to hardware if this is the first iteration of running the procedure;...

  • Page 15: Verifying Rf Out Amplitude Accuracy

    14. Repeat steps 6 through 13 for 1 GHz, 5 GHz, 10 GHz, and 20 GHz carrier frequencies. 15. Close the device session. Verifying RF OUT Amplitude Accuracy This procedure verifies that the PXIe-5654 with PXIe-5696 is adjusted for correct amplitude accuracy. Connect the PXIe-5654 to the PXIe-5696.
  • Page 16 4. K(m)-to-K(m) Cable, 12 in. 9. Signal Source Analyzer 5. Power Sensor Create a new device session for the PXIe-5654 with PXIe-5696. Create a list of test frequencies from the following table based on your current power level under test.
  • Page 17 15,000 15,250 20,000 0.25 — — 112.5 1,000 1,250 3,000 3,250 6,000 6,250 15,000 15,250 20,000 0.25 — — 112.5 1,000 1,250 3,000 3,250 6,000 6,250 15,000 15,250 20,000 PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 17...
  • Page 18 1,250 3,000 Configure the reference level of the spectrum analyzer to -30 dBm. The spectrum analyzer is used only for termination. Configure the PXIe-5654 with PXIe-5696 using the following settings: • Frequency: Frequency from the list in step 5 •...
  • Page 19 >6,000 MHz to >20 ±1.50 ±1.20 ±0.80 ±1.20 ≤8,000 MHz >8,000 MHz to >20 ±1.50 ±1.20 ±0.80 ±1.30 ≤15,000 MHz >15,000 MHz to >18 ±1.50 ±1.20 ±0.80 ±1.30 ≤20,000 MHz PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 19...
  • Page 20 The following steps apply to using an output power of -20 dBm. 18. Create a list of test frequencies from Table 7 that apply to a power level of -20 dBm. 19. Configure the PXIe-5654 with PXIe-5696 using the following settings: •...
  • Page 21 34. Measure the power level with the signal source analyzer. Record the value as the Signal Source Analyzer Reading. 35. Correct the reading with previously stored characteristic values. Power Deviation (dB) = Signal Source Analyzer Reading + Corrections stored in step 26 PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 21...

  • Page 22: Verifying Rf Out Maximum Power

    47. Stop signal generation. 48. Close the device session. Verifying RF OUT Maximum Power This procedure verifies that the PXIe-5654 with PXIe-5696 produces the correct maximum output power. Connect the PXIe-5654 to the PXIe-5696. Using the fixture that was previously characterized in...
  • Page 23 Table 10. RF OUT Maximum and Minimum Power Test Frequencies Power Level Start Frequency Stop Frequency Frequency Step (dBm) (MHz) (MHz) (MHz) 0.25 — — 112.5 1,000 1,250 3,000 3,250 6,000 6,250 15,000 15,250 20,000 PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 23...

  • Page 24: Optional Verification

    EXT TRIG/GATE IN back panel connector using a BNC(m)-to-BNC(m) cable. (Not pictured.) Connect the P0.0 output of the USB digital output device to the PXIe-5654 front panel PULSE IN connector using BNC(m)-to-SMB(f) cable. 24 | ni.com | PXIe-5654 with PXIe-5696 Calibration Procedure...
  • Page 25 Video bandwidth: 100 Hz • RF attenuation: 30 dB Configure the PXIe-5654 with PXIe-5696 using the following settings: • Pulse Modulation Enabled: TRUE • Frequency: 5 GHz • Power Level: 10 dBm PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 25...

  • Page 26: Adjustment

    OnPower - OffPower ≥ 80 dB 20. Close the device sessions. Adjustment This section describes the steps needed to adjust the PXIe-5654 with PXIe-5696 to meet published specifications. The PXIe-5696 is adjusted while connected to the PXIe-5654. Note Adjusting the PXIe-5696 requires a calibrated 20 GHz PXIe-5654. If you performed verification using a 10 GHz PXIe-5654, power off the system and replace the 10 GHz PXIe-5654 with a 20 GHz PXIe-5654 prior to starting adjustment.
  • Page 27 Call the niRFSG 5696 Attenuator Path Cal Configure VI. Measure the PXIe-5654 output power through the 20 dB attenuator with the power meter. Ensure that the power meter is settled within 0.1% before taking a measurement. Correct the power meter reading for the RF frequency using the frequency to measure output of the niRFSG 5696 Attenuator Path Cal Configure VI.

  • Page 28: Adjusting Rf Attenuator Path

    PXIe-5696 EE PROM. This adjustment yields a more accurate output power for the PXIe-5696 RF OUT. Connect the PXIe-5654 RF OUT to the PXIe-5696 ATTN IN front panel connector through the 20 dB attenuator. Connect the PXIe-5696 ATTN OUT front panel connector to the power meter as shown in the following figure.

  • Page 29: Adjusting Rf Attenuator Accuracy

    PXIe-5696 EEPROM. This adjustment yields a more accurate output power for the PXIe-5696 RF OUT. Connect the power sensor directly to the PXIe-5696 RF OUT front panel connector as shown in the following figure. PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 29...
  • Page 30 5696 Attenuator Cal Adjust VI returns a value of TRUE. Call the niRFSG Close External Calibration VI to close the session. Set the write calibration to hardware? parameter to TRUE to store the results to the EEPROM on the PXIe-5696. 30 | ni.com | PXIe-5654 with PXIe-5696 Calibration Procedure...

  • Page 31: Measuring Amplifier Path Input Power

    This procedure measures the input power used for PXIe-5696 RF amplifier path adjustments. Using the measured input power yields a more accurate adjustment. Connect the PXIe-5654 RF OUT front panel connector directly to the power meter as shown in the following figure.

  • Page 32: Adjusting Amplitude Accuracy (Low Harmonic Paths)

    Call the niRFSG 5696 Amplifier Cal Configure VI. Measure the PXIe-5654 output power with the power meter. Ensure that the power meter is settled within 0.1% before taking a measurement. Correct the measurement from step 7 using the frequency to measure output of the niRFSG 5696 Amplifier Cal Configure VI.
  • Page 33 Ensure that the power meter is settled within 0.1% before taking a reading. Use the reading from step 7 as the value of the measured power input of the niRFSG 5696 Amplifier Cal Adjust VI. PXIe-5654 with PXIe-5696 Calibration Procedure | © National Instruments | 33...

  • Page 34: Adjusting Amplitude Accuracy (High Power Paths)

    20 GHz 5.5V MAX IN SENSITIVE ALL PORTS SENSITIVE 50 Ω ALL PORTS 50 Ω 1. PXIe-5654 RF Analog Signal Generator 3. Power Meter 2. PXIe-5696 Amplitude Extender 4. Power Sensor 34 | ni.com | PXIe-5654 with PXIe-5696 Calibration Procedure...

  • Page 35: Adjusting Alc

    Measuring Amplifier Path Input Power on page 31 Adjusting ALC This procedure characterizes the ALC path in the PXIe-5654 with PXIe-5696 and updates the values stored in the PXIe-5696 EEPROM. This adjustment yields a more accurate output power for the PXIe-5696 RF OUT.
  • Page 36 Cal Adjust VI returns a value of TRUE. Call the niRFSG Close External Calibration VI to close the session. Set the write calibration to hardware? parameter to TRUE to store the results to the EEPROM on the PXIe-5696. 36 | ni.com | PXIe-5654 with PXIe-5696 Calibration Procedure...

  • Page 37: Reverification

    PXIe-5654 or the PXIe-5696. Note If any test fails reverification after performing an adjustment, verify that you have met the test conditions before returning your PXIe-5654 or PXIe-5696 to NI. Refer to the Worldwide Support and Services section for information about support resources or service requests.
  • Page 38 NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering NI products/technology, refer to the appropriate location: Help»Patents in your software, the file on your media, or the National Instruments Patent Notice at . You can find patents.txt ni.com/patents...

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