PXI-5670

2.7 GHz RF Vector Signal Generator NI PXI-5670 • 250 kHz to 2.7 GHz • 16-bit resolution, 100 MS/s arbitrary waveform generation (400 MS/s interpolated) • 8, 32 or 256 MB memory • 22 MHz real-time bandwidth • High-stability time base (10 MHz OCXO) • ±20 ppb frequency stability • ±50 ppb frequency accuracy •-145 dBm to +13 dBm output power NEW Operating Systems •Windows 2000/NT/XP Recommended Software • LabVIEW • LabWindows/CVI Application Software (included) • Modulation Toolkit for LabVIEW Driver Software (included) • NI-RFSG Calibration Certificate Included Overview The National Instruments PXI-5670 is a 2.7 GHz RF vector signal generator module with the power and flexibility needed for product development applications from design through manufacturing. The NI PXI-5670 provides true 16-bit resolution arbitrary waveform generation at 100 MS/s (400 MS/s interpolated), up to 256 MB of memory, and 22 MHz real-time bandwidth. The PXI-5670 can generate custom and standard modulation formats such as AM, FM, PM, ASK, FSK, PSK, MSK, and QAM. Engineers now have a highly precise and flexible vector signal generator with the performance required for rapid prototyping and automated test. The Modulation Toolkit for LabVIEW accompanies the PXI-5670, providing functions and tools for signal generation, analysis, visualization, and processing of custom and standard digital and analog modulation formats. The combined functionality of the PXI-5670 and the Modulation Toolkit deliver a highly flexible and powerful solution for scientific research, consumer electronics, communications, aerospace/defense, and semiconductor test applications as well as for emerging areas including software-defined radio, radio-frequency identification (RFID), and wireless sensor networks. Figure 1. Modulation Toolkit for LabVIEW Displaying π/4 DQPSK specifications make it useful for a range of automation applications. A sophisticated calibration scheme is implemented in the PXI-5670 to ensure power level accuracy over varying temperatures from 0 to 55°C. This feature is important to many applications, especially in manufacturing environments where the stable operation over varying temperature ranges is critical. Software Hardware The PXI-5670 provides vector signal generation from 250 kHz to 2.7 GHz over a wide range of signal levels from -145 dBm to +13 dBm in a compact, 3 slot 3U module. It follows industry-standard plug and play specifications for the PXI bus and can be seamlessly integrated with compliant systems. The PXI-5670 features an onboard ultrahigh-stability ovencontrolled crystal oscillator (OCXO), which provides frequency stability of ±20 ppb and frequency accuracy of ±50 ppb. These The PXI-5670 is shipped with the NI-RFSG instrument driver and the Modulation Toolkit for LabVIEW. NI-RFSG is a fully functional instrument driver, compatible with a variety of application software environments such as NI LabVIEW 7 Express, LabWindows/CVI, and C. NI-RFSG features easy-to-use functions for configuring the timing and synchronization, CW tone, and arbitrary waveform generation capabilities of the PXI-5670. Also included are a number of interactive, instructional examples and interactive online help that can help jumpstart your application test development. 2.7 GHz RF Vector Signal Generator The Modulation Toolkit for LabVIEW provides functions for signal generation, analysis, and visualization of custom and standard analog and digital modulation. With the Modulation Toolkit, you can also develop and analyze custom modulation formats and generate these with the PXI-5670. Some of the standard measurement functions include EVM (error vector magnitude), MER (modulation error ratio), and ρ (rho). Functions are also available for injecting impairments including IQ Gain Imbalance, Quadrature Skew, and AWGN (additive white Gaussian noise). Visualization functions include trellis, constellation, and 2D- and 3D-eye diagrams. This hardware and software combination gives you access to customizable functionality not available in traditional instrumentation. Figure 3. RF test system – PXI-5670 and PXI-5660 Modulation Toolkit Functions* Modulation/Demodulation • 4, 8, 16, 32, 64, 128, 256-QAM • 2, 4, 8, 16-FSK • MSK and GMSK • 8, 16, 64-PSK • BPSK, QPSK, OQPSK, DQPSK, π/4DQPSK • AM, FM, PM Visualization and Analysis • Trellis diagrams • Constellation plot • 2D- and 3D-eye diagrams Memory The deep memory of up to 256 MB in the PXI-5670 offers extended playback time for complex modulated signals. With this deep memory, you can build and output longer and more complex waveforms with a duration of up to 1.28 seconds to address research and testing needs for simulation of signal transmission in real-world conditions. Option 8 MB 32 MB 256 MB * Frequency Modulation Impairments • Multitone • DC offset • Fading profile • Frequency offset • Quadrature skew • IQ gain imbalance • Additive white Gaussian noise (AWGN) Modulation Analysis Functions • ρ (rho) • DC offset • Phase error • Quadrature skew • IQ gain imbalance • Bit error rate (BER) • Frequency deviation • Burst timing measurements • Modulation error ratio (MER) • Error vector magnitude (EVM) *A Playback Time 40 ms 160 ms 1.28 s Frequency Resolution* 25 Hz 6.2 Hz 0.6 Hz resolution does not refer to accuracy Superior Flexibility Providing customers with a flexible platform is necessary to meet the needs of today’s complex, rapidly evolving systems. The PXI-5670 consists of two components – the NI PXI-5610 2.7 GHz RF upconverter and the NI PXI-5421 arbitrary waveform generator, a high-spectral-purity baseband signal generator. The PXI-5610 and the PXI-5421 work together to provide vector signal generation from 250 kHz to 2.7 GHz. Because of the flexible hardware and software, and with access to low-level driver functionality, the PXI-5610 and the PXI-5421 can also be used independently for RF upconversion and arbitrary waveform sequencing. For advanced applications, combine additional modular instruments in the same PXI chassis with the PXI-5670 and take advantage of the tight synchronization between PXI modules. For example, combine the PXI-5660 RF Vector Signal Analyzer with the PXI-5670 to build an RF communications test system with complete modulation and demodulation capabilities. modulation toolkit datasheet is available separately. Calibration The PXI-5610 and the PXI-5421 are calibrated separately by National Instruments and are shipped with NIST-traceable and ISO-9002-certified calibration certificates. Temperature variations are calibrated and corrected during normal operation resulting in very high stability and repeatability. Figure 2. A 3D IQ plot created by the Modulation Toolkit visually separates the I and Q components for this PSK modulated signal. 2 National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com 2.7 GHz RF Vector Signal Generator Specifications Valid over specified Operating Environment (0 to 55 °C) unless otherwise stated. General Channels .......................................................... 1 RF, 1 IF Residual FM ..................................................... 4.5 Hz rms maximum (continuous wave, 300 Hz to 3 kHz integration bandwidth) Spurious Responses Second harmonic (>10 MHz) 0 to 55 °C .......... _ –45 dBc < Output third-order distortion (IMD) (two -6 dBm tones, >200 kHz apart) .........