The National Instruments PXI-5650 is an advanced PXI RF Analog Signal Generator, capable of generating signals from 500 kHz to 1.3 GHz. Featuring part numbers 779670-00 and 191967C-01, this device employs direct digital synthesis (DDS) technology, allowing for high-resolution frequency jumps and continuous phase sweeps. The PXI-5650 supports various modulation types, including frequency modulation (FM), 2-FSK, and on-off keying (OOK), making it ideal for characterizing equipment in diverse applications such as bit error ratio testing and antenna analysis.

This signal generator is optimized for synchronizing non-standard sampling rates, making it particularly suitable for industries working with WCDMA signals at both baseband and intermediate frequency levels. The internal DDS circuit facilitates analog and digital modulation with an amplitude resolution of less than 0.1 dB, while the device can also perform amplitude modulation. The PXI-5650’s system control unit ensures efficient management of control signals and data transfer between circuit blocks, incorporating essential temperature monitoring and calibration components.

The clocking system features a voltage-controlled crystal oscillator (VCXO) operating at 200 MHz, which can be phase-locked to an external 10 MHz clock via the REF IN/OUT connector. Signal generation occurs at the main synthesizer circuit, which is phase-locked to the DDS output signal, ensuring high fidelity in waveform generation. The unit operates well within a temperature range of 0 °C to 55 °C, with a robust storage temperature range of -40 °C to 70 °C. Additionally, it has a non-condensing humidity tolerance of 10% to 90% and 5% to 95%, respectively.

Weighing 14.6 oz and measuring 8.5 x 0.8 x 5.1 inches, the PXI-5650 is designed for usability and durability in demanding environments. Supported by the NI-RFSG driver, it seamlessly integrates with application development environments such as LabVIEW and LabWindows/CVI. The recommended warm-up time for optimal performance is 30 minutes, and regular calibration is advised at least once per year. A three-year warranty is included, providing peace of mind for users. For further details or to obtain a quote, please contact a National Instruments sales representative. User and maintenance manuals are available for download.