II. Model Interpretation

PXI: Follows the PXI industrial bus standard, adopts a 3U structure, occupies 2 chassis slots, and is compatible with PXI and PXIe chassis.

5660: The series number of the NI RF signal analyzer, representing a 2.7GHz bandwidth vector signal analyzer composed of 5600 (down-conversion) + 5620 (digitizer).

Component Number: 778284-01 (32MB memory), 778284-02 (64MB memory); with pre-amplification version 778284-21/22.

III. Technical Parameters

(25℃ environment, 50Ω load, preheating for 20 minutes, typical values)

1 Frequency and Time Base Parameters

Operating frequency range: 9kHz to 2.7GHz

Real-time analysis bandwidth: 20MHz

Time base: 10MHz constant temperature crystal oscillator OCXO

Frequency stability: ±20ppb

Frequency accuracy: ±50ppb

2 Input Power and Dynamic Range

Maximum input power: +30dBm

Input attenuation: 0 to 50dB, 10dB step

Spurious-free dynamic range: >80dB

Sensitivity: ≤-130dBm (typical)

3 Digitalization and Storage Parameters

Sampling bit: 14 bits

Sampling rate: 64MS/s

On-board memory: 32MB/64MB selectable

4 Physical and Environmental Parameters

Device specifications: 3U, 2 slots

Power consumption: approximately 25W

Operating temperature: 0℃ to 55℃

Heat dissipation: chassis forced air cooling

IV. Interface and Communication Configuration

Front panel interface

PXI-5600 (Down Converter)

RF IN: SMA, 50Ω, RF signal input

10MHz OUT: SMA, output reference clock to 5620

POWER/STATUS: power and lock-in status indicator lights

PXI-5620 (Digitizer)

REF CLK IN: SMA, connect 10MHz reference clock

PFI: programmable function interface, used for triggering and synchronization

Bus and software configuration

Bus: standard PXI bus, including 32-bit PCI, trigger bus, 10MHz reference bus

Driver: NI-RFSA, supports LabVIEW, TestStand, Python, C#

Supporting software: Spectrum Measurement Toolkit, supports frequency domain, IQ domain measurement

V. Core Functions

1 Broadband signal analysis, covering the mainstream RF frequency band from medium to low frequencies to 2.7GHz, with a 20MHz real-time bandwidth suitable for wireless communication signal acquisition.

2 High stability time base and excellent phase noise, ensuring frequency measurement accuracy and signal analysis reliability.

3 Vector signal analysis capability, supporting spectrum, power, modulation and demodulation, and IQ data acquisition, suitable for complex RF signal testing.

4 Large dynamic range and high sensitivity, capable of accurately measuring weak signals and strong signals, suitable for RF device and receiver testing.

4 Modular design, can be combined with PXI-5650 series signal generators to build a complete RF receive and transmit test system.

5 High-speed data transmission, supports DMA direct transfer to host memory, reduces CPU usage, and improves test efficiency.

VI. Application Scenarios

1 Wireless communication testing, used for 2G/3G/4G, Bluetooth, Wi-Fi, RFID devices' spectrum, modulation accuracy, adjacent channel power testing.

2 RF component testing, amplifiers, filters, mixers, RF switches' gain, loss, linearity, harmonics and spurious tests.

3 Radar and electronic equipment testing, medium-low frequency radar signal acquisition, RF environment simulation, receiver sensitivity and anti-interference testing. 4 Aerospace and defense, military RF equipment calibration, RF link simulation, RF sensor signal analysis.

5 Automotive electronic testing, vehicle remote key, tire pressure monitoring, vehicle Bluetooth and other RF module functions and anti-interference tests.

VII. Installation and Maintenance Instructions

Installation and Power On

Power off installation, 5600 and 5620 should be fixed in adjacent slots, and the chassis should be reliably grounded to prevent static electricity.

Power on preheating for 20 minutes, NI MAX self-check, confirm the module is normal and the clock is locked.

Keep the chassis ventilation ducts unobstructed during operation, the environmental temperature should be ≤ 55℃, do not block the cooling fan.

Wiring and Operation

RF IN is connected with a 50Ω SMA cable, tighten the interface to reduce reflection loss, and avoid long-term input of overvoltage signals.

The 10MHz OUT of 5600 is connected to REF CLK IN of 5620 to ensure module synchronization.

When synchronizing multiple devices, connect the external 10MHz reference clock uniformly and enable the synchronization function.

Daily Maintenance and Calibration

Professional traceability calibration once a year, use the built-in self-calibration to correct temperature drift on a daily basis.

Regularly clean the dust on the SMA interface, keep it dry, and install a dust cover when not in use.

Storage environment without condensation, humidity 10% to 90%, away from strong electromagnetic interference and vibration sources.

Do not power on and unplug cables, avoid shock and vibration, and do not operate for a long time at excessive temperature.