National Instruments PXI-5661 Bedienungsanleitung

GETTING STARTED GUIDE

NI PXI-5661

2.7 GHz RF Vector Signal Analyzer with Digital Downconversion

Note Before you begin, install and configure your chassis and controller.

This document explains how to install, configure, and test the NI PXI-5661 (NI 5661). The

NI 5661 is a modular 2.7 GHz RF vector signal analyzer (VSA) with wide real-time

bandwidth and digital downconversion. The NI 5661 ships with the NI-RFSA instrument

driver, which you use to program the device.

The NI 5661 comprises the following devices:

• NI PXI-5600 (NI 5600) RF downconverter module

• NI PXI-5142 (NI 5142) IF digitizer module

Caution The protection provided by this product may be impaired if it is used in a

manner not described in this document.

Hot Surface If the NI 5661 has been in use, it may exceed safe handling

temperatures and cause burns. Allow the NI 5661 to cool before removing it from

the chassis.

Contents

Electromagnetic Compatibility Guidelines...............................................................................2

Verifying the System Requirements......................................................................................... 2

Unpacking the Kit.....................................................................................................................2

Verifying the Kit Contents................................................................................................ 3

Preparing the Environment....................................................................................................... 4

Installing the Software.............................................................................................................. 4

Installing the NI 5661............................................................................................................... 5

Interconnecting the NI 5661 Modules.............................................................................. 6

Configuring the NI 5661 in MAX.......................................................................................... 14

Programming the NI 5661...................................................................................................... 16

NI-RFSA Examples........................................................................................................ 17

Troubleshooting...................................................................................................................... 18

Installation...................................................................................................................... 18

Configuration.................................................................................................................. 20

Measurements................................................................................................................. 21

Where to Go Next................................................................................................................... 22

Worldwide Support and Services............................................................................................22

Electromagnetic Compatibility Guidelines

This product was tested and complies with the regulatory requirements and limits for

electromagnetic compatibility (EMC) stated in the product specifications. These requirements

and limits are designed to provide reasonable protection against harmful interference when the

product is operated in the intended operational electromagnetic environment.

This product is intended for use in industrial locations. However, harmful interference may

occur in some installations, when the product is connected to a peripheral device or test object,

or if the product is used in residential or commercial areas. To minimize interference with

radio and television reception and prevent unacceptable performance degradation, install and

use this product in strict accordance with the instructions in the product documentation.

Furthermore, any modifications to the product not expressly approved by National Instruments

could void your authority to operate it under your local regulatory rules.

Caution To ensure the specified EMC performance, operate this product only with

shielded cables and accessories.

Caution To ensure the specified EMC performance, the length of all I/O cables

must be no longer than 3 m (10 ft).

Verifying the System Requirements

To use the NI-RFSA instrument driver, your system must meet certain requirements.

For more information about minimum system requirements, recommended system, and

supported application development environments (ADEs), refer to the product readme, which

is available on the driver software media or online at ni.com/updates.

Unpacking the Kit

Caution To prevent electrostatic discharge (ESD) from damaging the device,

ground yourself using a grounding strap or by holding a grounded object, such as

your computer chassis.

1. Touch the antistatic package to a metal part of the computer chassis.

2. Remove the device from the package and inspect the device for loose components or any

other sign of damage.

Caution Never touch the exposed pins of connectors.

Notify NI if the device appears damaged in any way. Do not install a damaged device.

3. Unpack any other items and documentation from the kit.

Store the device in the antistatic package when the device is not in use.

2| ni.com | NI PXI-5661 Getting Started Guide

Verifying the Kit Contents

Figure 1. NI 5661 Kit Contents

POWER

9 10 11

1. NI 5600 RF Downconverter Module

2. NI 5142 IF Digitizer Module

3. Semi-Flexible SMA-to-BNC Cable, Part Number

192975B-01

4. Semi-Flexible SMA-to-SMB Cable, Part Number

192973B-01

5. Semi-Flexible SMA-to-SMA Cable, Part Number

150611A-01

6. Cable Wrench (x2)

7. Screwdriver, Part Number 772006-01

8. Driver Software DVD

9. Read Me First: Safety and Electromagnetic

Compatibility

10. Maintain Forced-Air Cooling Note to Users

11. NI PXI-5661 Getting Started Guide (This

Document)

NI PXI-5661 Getting Started Guide | © National Instruments | 3

Other Equipment

There are several required items not included in your device kit that you need to install or

operate the NI 5661.

Required Items

• A PXI chassis and chassis documentation. The NI PXI-1045 chassis is one available

option for your device. For more information about compatible chassis options, refer to

ni.com.

• A PXI embedded controller or MXI controller system that meets the system requirements

specified in this guide and chassis documentation.

Optional Items

• A 1 N · m standard SMA torque wrench (NI part number 780487-01).

Preparing the Environment

Ensure that the environment you are using the NI 5661 in meets the following specifications.

............................................................................Operating ambient temperature

(IEC-60068-2-1, IEC-60068-2-2)

0 °C to 50 °C

............................................................................Operating relative humidity

(IEC-60068-2-56)

10% to 90%, noncondensing

............................................................................Maximum altitude 2,000 m (800 mbar) (at 25 °C ambient

temperature)

............................................................................Pollution Degree 2

Indoor use only.

Caution Clean the hardware with a soft, nonmetallic brush. Make sure that the

hardware is completely dry and free from contaminants before returning it to

service.

Note Refer to the NI PXI-5661 Specifications at ni.com/manuals for complete

specifications.

Installing the Software

You must be an Administrator to install NI software on your computer.

1. Install an ADE, such as LabVIEW or LabWindows™/CVI™.

2. Insert the driver software media into your computer. The installer should open

automatically.

4| ni.com | NI PXI-5661 Getting Started Guide

If the installation window does not appear, navigate to the drive, double-click it, and

double-click autorun.exe.

3. Follow the instructions in the installation prompts.

Note Windows users may see access and security messages during

installation. Accept the prompts to complete the installation.

4. When the installer completes, select Restart in the dialog box that prompts you to restart,

shut down, or restart later.

Installing the NI 5661

Caution To prevent damage to the device caused by ESD or contamination, handle

the device using the edges or the metal bracket.

1. Ensure the AC power source is connected to the chassis before installing the modules.

The AC power cord grounds the chassis and protects it from electrical damage while you

install the modules.

2. Power off the chassis.

3. Inspect the slot pins on the chassis backplane for any bends or damage prior to

installation. Do not install a module if the backplane is damaged.

4. Remove the black plastic connectors from all the captive screws on the module front

panel.

5. Identify a supported slot in the chassis. The following figure shows the symbols that

indicate the slot types.

Figure 2. Chassis Compatibility Symbols

NI PXIe-1062Q

12 3 45

1. PXI Express System Controller Slot

2. PXI Peripheral Slot

3. PXI Express Hybrid Peripheral Slot

4. PXI Express System Timing Slot

5. PXI Express Peripheral Slot

NI 5661 modules can be placed in PXI peripheral slots or PXI Express Hybrid peripheral

slots.

6. Touch any metal part of the chassis to discharge static electricity.

7. Ensure that the ejector handle is in the unlatched (downward) position.

8. Place the module edges into the module guides at the top and bottom of the chassis. Slide

the device into the slot until it is fully inserted.

NI PXI-5661 Getting Started Guide | © National Instruments | 5

Figure 3. Module Installation

NI PXIe-1075

1. Chassis

2. Hardware Module

3. Ejector Handle in Down (Unlatched) Position

9. Latch the module in place by pulling up on the ejector handle.

10. Secure the device front panel to the chassis using the front-panel mounting screws.

Note Tightening the top and bottom mounting screws increases mechanical

stability and also electrically connects the front panel to the chassis, which can

improve the signal quality and electromagnetic performance.

11. Cover all empty slots using filler panels or slot blockers to maximize cooling air flow.

12. Power on the chassis.

Related Information

Installing the Software on page 4

Interconnecting the NI 5661 Modules

Caution The signal pins of this product's input/output ports can be damaged if

subjected to ESD. To prevent damage, remove power from the product before

6| ni.com | NI PXI-5661 Getting Started Guide

connecting cables and employ industry-standard ESD prevention measures during

installation, maintenance, and operation.

Figure 4. NI 5661 Front Panel Interconnection

TRIG

CH 0

NI PXI-5142

ACCESS ACTIVE

CH 1

AUX I/O +5 V

MAX

CLK IN CLK OUT

100 MS/s OSP Digitizer

NI 5600

POWER

STATUS

RF DOWNCONVERTER

+20 dBm MAX

+30 dBm MAX

WITH ATTN

± 5 V DC MAX

PXI 10 MHz I/O

5 V DC MAX

+23 dBm MAX

1. Semi-Flexible SMA-to-BNC Cable

2. Semi-Flexible SMA-to-SMB Cable

3. (Optional) Semi-Flexible SMA-to-SMA Cable

1. Using the short semi-flexible SMA-to-BNC coaxial cable, connect the OUTPUT

connector on the NI 5600 front panel to the CH 0 connector on the NI 5142 front panel.

2. Using the long semi-flexible SMA-to-SMB coaxial cable, connect the lower of the two

10 MHz OUT connectors on the NI 5600 front panel to the CLK IN connector on the

NI 5142 front panel.

3. (Optional) Using the semi-flexible SMA-to-SMA coaxial cable center pin, connect the

bidirectional PXI 10 MHz I/O connector on the NI 5600 front panel to the other

10 MHz OUT connector on the NI 5600 front panel. This connection drives the

PXI 10 MHz backplane with the NI 5600 onboard frequency reference.

Note You can use this connection to drive the PXI 10 MHz backplane clock

only when the NI 5600 RF downconverter module is installed in Slot 2 of a

PXI chassis.

4. Hand-tighten all SMA cable ends on the SMA connectors after the cable center pins are

correctly aligned and connected. The cable connectors should tighten without much

torque or effort. If a cable bends due to incorrect alignment, remove the cable from the

NI PXI-5661 Getting Started Guide | © National Instruments | 7

front panel connector and reconnect the cable center pin on the SMA cable to the SMA

connector.

5. Carefully complete tightening all SMA connectors to 1 N · m using an appropriate torque

wrench (not included) or torque screwdriver and SMA driver bit. Tighten only until the

wrench clicks.

Caution Incorrect torque at SMA connections can degrade signal fidelity and

phase-locked loop (PLL) performance and may cause insertion loss. Use an

appropriate torque wrench or torque screwdriver and SMA driver bit to ensure

all SMA connections are properly torqued. SMA connectors for connections to

external equipment may require torque different from 1 N · m, depending on

the connector type, material, and manufacturer.

6. Power on the PXI chassis and controller system.

7. Verify that the POWER LED on the NI 5600 RF downconverter module is on.

Related Information

Troubleshooting on page 18

If an issue persists after you complete a troubleshooting procedure, contact NI technical

support or visit ni.com/support.

Direct Connections to the NI 5600

The NI 5600 is a precision RF instrument that is sensitive to ESD and transients. Ensure you

are making proper direct connections to the NI 5600 to avoid damaging the device.

Caution Apply external signals only while the NI 5600 is powered on. Applying

external signals while the device is powered off may cause damage.

• Ensure you are properly grounded when manipulating cables or antennas connected to the

NI 5600 INPUT connector.

• If you are using noninsulated devices, such as a noninsulated RF antenna, ensure the

devices are maintained in a static-free environment.

• If you are using an active device, such as a preamplifier or switch routed to the NI 5600

INPUT connector, ensure that there are no signal transients greater than the RF and DC

specifications for the device that are being generated and sourced to the NI 5600 INPUT

connector.

8| ni.com | NI PXI-5661 Getting Started Guide

NI 5600 RF Downconverter Module Front Panel

The NI 5600 RF downconverter module front panel contains six connectors and two LEDs.

Figure 5. NI 5600 RF Downconverter Module Front Panel

INPUT

50 Ω

0 V DC MAX

OUTPUT

50 Ω

5 MHz - 25 MHz

+20 dBm MAX

+30 dBm MAX

WITH ATTN

PXI 10 MHz I/O

50 Ω

+23 dBm MAX

5 V DC MAX

10 MHz OUT

1 V pp 50 Ω

FREQ. REF IN

50 Ω

+16 dBm MAX

±5 V DC MAX

NI 5600

POWER

STATUS

RF DOWNCONVERTER

Table 1. Device Front Panel Icon Definition

Refer to the user documentation for required maintenance measures to ensure user

safety and/or preserve the specified EMC performance.

NI PXI-5661 Getting Started Guide | © National Instruments | 9

Table 2. NI 5600 RF Downconverter Module Front Panel Connectors

Connector Use

FREQ REF IN Routes an external frequency reference signal to which the NI 5600

can lock. You can propagate this signal to the PXI backplane when

the NI 5600 is installed in PXI Slot 2.

10 MHz OUT

(two connectors)

Generates replications of the downconverter 10 MHz frequency

reference signal. These replicated signals are useful for driving other

devices. Each replication is 180° out of phase with the other. The

signal output at these connectors is always on and cannot be

disabled.

Connect the lower 10 MHz OUT connector to the REF CLK IN

connector on the NI 5620 module front panel or to the CLK IN

connector on the NI 5142.

PXI 10 MHz I/O Provides bidirectional connection to the PXI 10 MHz backplane

clock.

You can use this connector to drive the PXI 10 MHz backplane clock

only when the NI 5600 is installed in PXI Slot 2. You can use this

connector to export the PXI 10 MHz backplane clock when the

NI 5600 RF downconverter is installed in any PXI slot.

OUTPUT Connects to the INPUT connector on the NI 5142 IF digitizer

module front panel.

This connector is the output terminal for the frequency-translated IF

signal for digitization.

INPUT Connects to the analog RF input signal to be measured by the

NI 5661.

10 | ni.com | NI PXI-5661 Getting Started Guide

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