NIPXI-5404

100 MHz Frequency Generator NI PXI-5404 • 1 channel updated at 300 MS/s • 9 kHz to 105 MHz sine wave • DC to 100 MHz clock • 1.07 µHz frequency resolution • 1 to 4 Vpp sine amplitude • 12-bit vertical resolution • ±0.2 dB flatness of sine wave passband (9 kHz to 100 MHz) • Ideal for coherent sampling applications • Phase-lock loop for synchronization to other devices and PXI backplane New Operating Systems • Windows 2000/NT/XP/Me/9x Recommended Software • LabVIEW • LabWindows/CVI Other Compatible Software • Visual Basic • C/C++ Driver Software (included) • NI-FGEN Calibration Certificate Included Overview The National Instruments PXI-5404 is a 100 MHz frequency generator packaged in 1-slot PXI module. It generates sine and clock outputs simultaneously at up to 100 MHz with 1.07 µHz resolution. By using direct digital synthesis (DDS) and precise phase-lock loop circuitry, the PXI-5404 generates stable, accurate sine and clock outputs of which you can programmatically adjust the amplitude, frequency, and phase of the sine and clock outputs as well as the duty cycle of the clock output. The PXI-5404 is a versatile, cost-effective, sine wave generator with output levels ranging from 1 to 2 Vpp into a 50 Ω load with 12-bit resolution, excellent frequency resolution, and passband flatness. Stimulus-response instruments such as network analyzers and ATE test systems will benefit from using the PXI-5404 as the sine stimulus because of its passband flatness, and its frequency accuracy and resolution. The PXI-5404 can also serve as a programmable clock generator for ATE systems because of its 1.07 µHz frequency resolution, dutycycle adjustability from 25 to 75 percent, and programmable voltage levels of 5, 3.3, or 1.8 V into high-impedance loads. 100100... 111001... 101001... ADC (DUT) Ideal for Coherent Clocking Applications With the simultaneous sine and clock outputs, you can employ coherent clocking to reduce the test time of your device under test (DUT) and eliminate the need for antialias filtering. Because you have a precise phase and frequency relationship between the INFO CODES For more information or to order products online, visit ni.com/info and enter: pxi5404 BUY ONLINE! analog stimulus and the sample clock, there is no need for windowweighting functions in your FFTs for spectral analysis, thus reducing the need to sample the DUT over several cycles of the sine stimulus. With a coherent clocking system, you know both the analog stimulus and the sampling clock frequencies, thus eliminating the need for antialias filters or time-domain window functions. In a coherent sampling system, all the power from the signal and its accompanying harmonics fall into predictable frequency bins. NI PXI-5404 Sine Clock PLL Figure 1. A typical coherent sampling application is the testing of analog-to-digital converters (ADCs). Here the sine stimulus is fed to the ADC and the clock output is phase locked and multiplied to yield a sampling clock to the ADC and to a digital pattern generator/analyzer. Digital I/O module 100 MHz Frequency Generator Programmable Clock Output Levels for TTL/CMOS The PXI-5404 has programmable voltage output levels of 5, 3.3, and 1.8 V into high impedance loads and 2.5, 1.65, and 0.9 V into a 50 Ω load. With the flexible clock output levels, the PXI-5404 can address both TTL and CMOS technologies thereby making it an attractive clock source for ATE systems. Additionally an external DC blocking capacitor can be used to shift the outputs to other popular logic levels such as LVPECL and PECL. Power (dBm) 10.6 10.4 10.2 10 9.8 9.6 9.4 9.2 9 0 20 40 60 80 100 120 Frequency (MHz) Superior Leveled Sine Output Accuracy The PXI-5404 employs an onboard amplitude-leveling compensation scheme whereby the specified output level enjoys excellent accuracy of ±0.2 dB within the passband of 9 kHz to 100 MHz. In Figures 2 and 3 the effects of the output leveling technique can be seen clearly. This level accuracy makes the PXI-5404 an ideal source for many applications such as communications and ATE, where amplitude accuracy is a key requirement. 10.6 10.4 10.2 Figure 3. NI PXI-5404 Passband Flatness with Onboard Compensation Triggering The sine and clock outputs can run continuously or you can use triggering controls to start sine and clock generation. Trigger sources can be either external or internal (software trigger). External triggers can be received from the front panel connector PFI0, the PXI trigger bus, or the PXI star trigger bus. You can also change the operating frequency, amplitude, and phase of the PXI-5404 output from one of these sources. Power (dBm) 10 9.8 9.6 9.4 9.2 9 0 20 40 60 80 100 120 Calibration Every PXI-5404 is factory calibrated and shipped with a calibration certificate verifying that it meets NIST-traceable standards. Periodically, you can externally calibrate the PXI-5404 (provided you have the expertise and equipment), or you can ship it to National Instruments or a qualified metrology lab. External calibration is usually performed on an annual basis. Visit ni.com/calibration for more information about calibration services. Frequency (MHz) Figure 2. NI PXI-5404 Passband Flatness without Onboard Compensation Phase-Lock Loop for Synchronization The phase-lock loop on the PXI-5404 synchronizes sine and clock generation to an external clock. The reference clock source may come from the front panel connector CLK IN, the PXI 10 MHz reference clock on the PXI backplane, or the PXI trigger bus. The PXI-5404 phase-locks to frequencies from 3 to 20 MHz in 1 MHz increments. The PXI-5404 can also operate without an external reference frequency by using its onboard frequency source. Using phase-lock loops, you can synchronize two or more PXI-5404 sources to within 0.022 deg in phase for outputs up to 100 MHz. Consequently, you can build a high-performance multichannel source on the PXI platform. Thus, with the PXI-5404 you can address applications such as in automotive and video test that require multiple clock frequencies that are phase locked in precise phase relationships. I/O Connector The PXI-5404 has five SMB connectors labeled SINE, CLOCK, REF IN, REF OUT, and PFI0. The sine and clock outputs are accessed on SINE and CLOCK, respectively, and an external reference frequency for the phase-lock loop is fed to the REF IN connector. The REF OUT connector is a truly versatile output connector that can route out a signal from multiple sources, including the onboard VCXO reference (divided by 1 to 255), the star trigger bus, the PXI trigger bus, PFI0 connector, and the PXI 10 MHz reference clock. The PFI0 connector is a bidirectional connector. As an input, the PFI0 connector can accept a trigger that initiates sine and clock generation from an external source. As an output, the PFI0 connector can route out the same set of signals as the REF OUT connector. 2 National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com 100 MHz Frequency Generator Software If you want to build an automated test application or integrate the PXI-5404 in your test software, use the IVI-compliant NI-FGEN instrument driver with: • NI LabVIEW • Microsoft Visual Basic •NI LabWindows/CVI •Microsoft Visual C/C++ Interactive Control The PXI-5404 comes with the versatile Sources Soft Front Panel with which you can interactively control the PXI-5404. You can generate sine and clock outputs with control of frequency, phase, amplitude, and duty cycle with the Sources Soft Front Panel. Furthermore, you can run the PXI-5404 in simulation mode from the Sources Soft Front Panel. NI-FGEN comes with a comprehensive set of examples that illustrate the programming and features of the PXI-5404 in all four programming environments. Because NI-FGEN offers simulation mode, you can run your application on a laptop PC, for example. Thanks to this feature, you can develop your application with the PXI-5404 remotely or a team of developers can work on an application without the need for hardware in their systems. Ordering Information NI PXI-5404 ................................................778577-01 Includes the module, NI-FGEN, Sources Soft Front Panel, and calibration certificate. Specifications Specifications are valid for the Operating Temperature Range, unless otherwuse noted. CH0 CLOCK (Channel 0 Clock Output, I/O Panel Connector) Connector .................................................. Frequency Range ....................................... Frequency Resolution ................................ Phase Range .............................................. Phase Resolution ....................................... Output Impedance ..................................... Output Protection ...................................... Output Current Amplitude (Open Load) VOL VOH Amplitude (50 Load) VOL VOH 5.0 V Level 120 mA 5.0 V Level Min Max -0.10 V 0.40 V 4.00 V 5.30 V 5.0 V Level Min Max -0.10 V 0.20 V 2.00 V 2.65 V 3.3 V Level 72 mA 3.3 V Level Min Max -0.10 V 0.40 V 2.60 V 3.70 V 3.3 V Level Min Max -0.10 V 0.20 V 1.30 V 1.85 V SMB DC to 105 MHz 1.07 µHz 0 to 359.978 deg 16384 steps including endpoints 50 Ω ±12%, (DC to 105 MHz) +8 to -4 V Typical Source or Sink Output Characteristics Number of outputs .................................... 1 sine and 1 clock, Both generate same frequency simultaneously. CH0 SINE (Channel 0 Sine Wave Output, I/O Panel Connector) SMB 9 kHz to 105 MHz 1.07 µHz 0 to 359.978 deg 16384 steps including endpoints (approximately 0.022 deg) Output Impedance ..................................... 50 Ω ±4% (9 kHz to 105 MHz) Output Protection ...................................... 10 Vrms Sampling Rate............................................ 300 MS/s Amplitude Range Open load ............................................. 4.00 Vpp to 2.00 Vpp 50 Ω load .............................................. 2.00 Vpp to 1.00 Vpp Amplitude Resolution ................................ 2048 steps including endpoints (Open Load: Approximately 977 µV. 50 Ω Load: Approximately 489 µV) Amplitude Accuracy ................................... ±1% @ 50 kHz Amplitude Passband Flatness.................... ±0.2 dB relative to the amplitude @ 50 kHz, 9 kHz < f