{"id":32691,"date":"2026-05-12T09:42:54","date_gmt":"2026-05-12T01:42:54","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=32691"},"modified":"2026-08-29T11:56:32","modified_gmt":"2026-08-29T03:56:32","slug":"pxie-5641","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxie-5641\/","title":{"rendered":"PXIe-5641"},"content":{"rendered":"<h3>PXIe-5641 Reconfigurable Intermediate-Frequency Transceiver<\/h3>\n<p>\u0417\u0435\u043c\u043b\u044f <strong>PXIe-5641<\/strong>, also documented as the <strong>PXIe-5641R<\/strong>, is a reconfigurable intermediate-frequency transceiver with two analog input channels and two analog output channels. It is designed for real-time spectrum analysis, software-defined radio, RFID testing and custom RF signal-processing applications.<\/p>\n<p>The module combines 14-bit ADCs and DACs with a user-programmable <strong>Xilinx Virtex-5 SX95T FPGA<\/strong>. It supports IF signals through 80 MHz, input sampling up to 100 MS\/s, output sampling up to 200 MS\/s and direct hardware processing with low latency.<\/p>\n<h3>Key Features of the PXIe-5641<\/h3>\n<ul>\n<li>Two intermediate-frequency input channels<\/li>\n<li>Two intermediate-frequency output channels<\/li>\n<li>14-bit analog-to-digital converters<\/li>\n<li>14-bit digital-to-analog converters<\/li>\n<li>Input sampling rates from 30 MS\/s to 100 MS\/s<\/li>\n<li>Output sampling rates from 30 MS\/s to 200 MS\/s<\/li>\n<li>250 kHz to 80 MHz characterized IF passband<\/li>\n<li>20 MHz maximum instantaneous input bandwidth<\/li>\n<li>Up to 40 MHz digital modulation bandwidth<\/li>\n<li>Xilinx Virtex-5 SX95T FPGA<\/li>\n<li>128 MB onboard DRAM<\/li>\n<li>Seven configurable auxiliary digital I\/O lines<\/li>\n<li>External reference and sample clock support<\/li>\n<li>Peer-to-peer data streaming support<\/li>\n<li>Single-slot PXI Express module<\/li>\n<\/ul>\n<h3>PXIe-5641 Technical Specifications<\/h3>\n<table>\n<tbody>\n<tr>\n<th>Product Model<\/th>\n<td>PXIe-5641 \/ PXIe-5641R<\/td>\n<\/tr>\n<tr>\n<th>Part Number<\/th>\n<td>780710-01<\/td>\n<\/tr>\n<tr>\n<th>Product Type<\/th>\n<td>Reconfigurable PXI IF Transceiver<\/td>\n<\/tr>\n<tr>\n<th>Input Channels<\/th>\n<td>2<\/td>\n<\/tr>\n<tr>\n<th>Output Channels<\/th>\n<td>2<\/td>\n<\/tr>\n<tr>\n<th>IF Frequency Range<\/th>\n<td>Up to 80 MHz<\/td>\n<\/tr>\n<tr>\n<th>Characterized Passband<\/th>\n<td>250 kHz to 80 MHz<\/td>\n<\/tr>\n<tr>\n<th>Input ADC Resolution<\/th>\n<td>14 bits<\/td>\n<\/tr>\n<tr>\n<th>Input Sampling Rate<\/th>\n<td>30 MS\/s to 100 MS\/s<\/td>\n<\/tr>\n<tr>\n<th>Maximum Input Bandwidth<\/th>\n<td>20 MHz<\/td>\n<\/tr>\n<tr>\n<th>Input Full-Scale Level<\/th>\n<td>+8.5 dBm peak at 10 MHz, typical<\/td>\n<\/tr>\n<tr>\n<th>Maximum Input Without Damage<\/th>\n<td>+24 dBm peak<\/td>\n<\/tr>\n<tr>\n<th>Output DAC Resolution<\/th>\n<td>14 bits<\/td>\n<\/tr>\n<tr>\n<th>Output Sampling Rate<\/th>\n<td>30 MS\/s to 200 MS\/s<\/td>\n<\/tr>\n<tr>\n<th>Maximum Modulation Bandwidth<\/th>\n<td>40 MHz<\/td>\n<\/tr>\n<tr>\n<th>Maximum Output Power<\/th>\n<td>Up to +2 dBm with compensation filters disabled<\/td>\n<\/tr>\n<tr>\n<th>Input and Output Impedance<\/th>\n<td>50 \u03a9 nominal<\/td>\n<\/tr>\n<tr>\n<th>Input and Output Coupling<\/th>\n<td>AC<\/td>\n<\/tr>\n<tr>\n<th>\u0424\u041f\u0413\u0410<\/th>\n<td>Xilinx Virtex-5 SX95T<\/td>\n<\/tr>\n<tr>\n<th>Onboard DRAM<\/th>\n<td>128 MB<\/td>\n<\/tr>\n<tr>\n<th>Internal Timebase<\/th>\n<td>200 \u041c\u0413\u0446<\/td>\n<\/tr>\n<tr>\n<th>Auxiliary Digital I\/O<\/th>\n<td>7 configurable lines<\/td>\n<\/tr>\n<tr>\n<th>Peer-to-Peer Streaming<\/th>\n<td>Supported<\/td>\n<\/tr>\n<tr>\n<th>\u0428\u0438\u043d\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441<\/th>\n<td>PXI Express<\/td>\n<\/tr>\n<tr>\n<th>Module Size<\/th>\n<td>3U, single slot<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Part Number and Configuration<\/h3>\n<table>\n<thead>\n<tr>\n<th>Part Number<\/th>\n<th>Analog I\/O<\/th>\n<th>\u0424\u041f\u0413\u0410<\/th>\n<th>Onboard Memory<\/th>\n<th>Bus<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>780710-01<\/td>\n<td>2 IF inputs and 2 IF outputs<\/td>\n<td>Virtex-5 SX95T<\/td>\n<td>128 MB DRAM<\/td>\n<td>PXI Express<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Dual IF Input Channels<\/h3>\n<p>The PXIe-5641 provides two AC-coupled, 50 \u03a9 IF input channels. Each channel uses a 14-bit ADC and supports sampling rates between 30 MS\/s and 100 MS\/s.<\/p>\n<p>The inputs can be used for simultaneous acquisition of two IF signals, I\/Q signal pairs or separate receiver paths. The maximum instantaneous input bandwidth is 20 MHz when using the onboard digital downconverter.<\/p>\n<h3>Dual IF Output Channels<\/h3>\n<p>Two 14-bit DAC channels generate AC-coupled IF signals at sampling rates from 30 MS\/s to 200 MS\/s. Each output includes a digital upconverter with interpolation, digital mixing and numerically controlled oscillator functions.<\/p>\n<p>The digital upconverter supports modulation bandwidths up to 40 MHz. Pulse-shaping filters required by a specific communication standard must be implemented in the FPGA application or signal-generation software.<\/p>\n<h3>Virtex-5 FPGA Processing<\/h3>\n<p>The PXIe-5641 includes a user-programmable Xilinx Virtex-5 SX95T FPGA. It provides 94,208 logic cells, 640 DSP blocks and up to 8,784 kbits of block RAM for real-time signal-processing functions.<\/p>\n<p>Engineers can implement digital downconversion, filtering, triggering, modulation, demodulation, spectrum processing and custom decision logic directly in hardware. FPGA execution provides deterministic timing and low-latency responses that are difficult to achieve with host software alone.<\/p>\n<h3>128 MB Onboard DRAM<\/h3>\n<p>The module includes 128 MB of onboard DRAM with a theoretical maximum data rate of 1,600 MB\/s. This memory can be used for waveform storage, acquisition buffering and FPGA-based signal processing.<\/p>\n<p>Onboard memory is useful when the application must capture transient signals before transferring data to the controller or continuously generate stored IF waveforms.<\/p>\n<h3>Digital Downconversion and Signal Acquisition<\/h3>\n<p>The input subsystem can digitally translate a selected IF band to complex baseband data. Digital filtering and decimation reduce the data rate while preserving the signal bandwidth required by the application.<\/p>\n<p>This architecture supports applications such as real-time spectral monitoring, custom demodulation and channelized receivers. FPGA code can also respond immediately when a signal meets a defined frequency, amplitude or timing condition.<\/p>\n<h3>Digital Upconversion and Modulation<\/h3>\n<p>Each output DAC has an associated digital upconverter that can translate complex baseband data to an IF carrier. Supported interpolation factors range from 4\u00d7 to 252\u00d7.<\/p>\n<p>The numerically controlled oscillator provides fine tuning resolution for custom waveform generation. Engineers can develop proprietary modulation schemes or reproduce recorded IF signals without relying on a fixed-function signal generator.<\/p>\n<h3>Clocking and Synchronization<\/h3>\n<p>The PXIe-5641 uses a calibrated 200 MHz internal timebase. Its CLK IN connector can accept an external reference clock from 1 MHz to 100 MHz in 1 MHz increments or an external sample clock from 30 MHz to 200 MHz.<\/p>\n<p>External clocking and PXI trigger resources allow the module to synchronize with RF upconverters, downconverters, digitizers and other modular instruments. This is important for phase-coherent and multichannel measurement systems.<\/p>\n<h3>Trigger and Auxiliary Digital I\/O<\/h3>\n<p>The module includes an SMB trigger connector and seven configurable auxiliary digital lines. The digital lines can implement custom handshaking, status monitoring, triggering and control interfaces.<\/p>\n<p>Triggering can be initiated through software, the external trigger connection or PXI trigger lines when using a LabVIEW FPGA application. Trigger polarity and response behavior can be customized in FPGA hardware.<\/p>\n<h3>Peer-to-Peer Data Streaming<\/h3>\n<p>Peer-to-peer streaming allows the PXIe-5641 to transfer data directly to compatible PXI Express modules without routing every transfer through the host controller.<\/p>\n<p>This can reduce host CPU usage and latency in systems that combine the IF transceiver with FPGA coprocessors, digitizers or other real-time processing modules.<\/p>\n<h3>Typical PXIe-5641 Applications<\/h3>\n<ul>\n<li>Software-defined radio development<\/li>\n<li>RFID reader and tag testing<\/li>\n<li>Real-time spectrum analysis<\/li>\n<li>Spectral monitoring<\/li>\n<li>Custom modulation and demodulation<\/li>\n<li>Digital radio research<\/li>\n<li>IF waveform acquisition and generation<\/li>\n<li>Receiver and transmitter prototyping<\/li>\n<li>RF dynamic testing<\/li>\n<li>Signal intelligence research<\/li>\n<li>Hardware-in-the-loop RF simulation<\/li>\n<li>Custom communication protocol testing<\/li>\n<\/ul>\n<h3>Software and Driver Support<\/h3>\n<p>The PXIe-5641 can be programmed using the NI-5640R instrument driver or the LabVIEW FPGA Module. The instrument driver provides a higher-level interface for standard acquisition and generation, while LabVIEW FPGA provides direct access to reconfigurable processing resources.<\/p>\n<p>Software selection depends on whether the application requires conventional IF transceiver functions or a custom FPGA personality. Verify compatibility among the driver, LabVIEW version, FPGA compilation tools, controller and operating system.<\/p>\n<h3>Front-Panel Connections<\/h3>\n<table>\n<thead>\n<tr>\n<th>Connector<\/th>\n<th>Type<\/th>\n<th>Function<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>AI CH 0 and AI CH 1<\/td>\n<td>SMA<\/td>\n<td>50 \u03a9 analog IF inputs<\/td>\n<\/tr>\n<tr>\n<td>AO CH 0 and AO CH 1<\/td>\n<td>SMA<\/td>\n<td>50 \u03a9 analog IF outputs<\/td>\n<\/tr>\n<tr>\n<td>CLK IN<\/td>\n<td>\u0421\u041c\u0411<\/td>\n<td>External reference or sample clock input<\/td>\n<\/tr>\n<tr>\n<td>TRIG<\/td>\n<td>\u0421\u041c\u0411<\/td>\n<td>External trigger connection<\/td>\n<\/tr>\n<tr>\n<td>DIO \/ AUX I\/O<\/td>\n<td>9-pin mini-DIN<\/td>\n<td>Seven configurable digital I\/O lines<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>PXI Chassis and System Integration<\/h3>\n<p>The PXIe-5641 is a single-slot PXI Express module requiring a compatible PXI Express chassis and controller. The chassis fan should be configured for high-speed operation when required to maintain specified performance.<\/p>\n<p>Compatible chassis options include the <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-1092\/\">PXIe-1092<\/a>, <a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-1085\/\">PXIe-1085<\/a> and other NI PXI Express chassis with sufficient cooling, power and data bandwidth.<\/p>\n<h3>Installation and Troubleshooting<\/h3>\n<h4>Module Is Not Detected<\/h4>\n<p>Confirm that the PXIe-5641 is fully installed in a compatible PXI Express peripheral slot. Check chassis communication and install the NI-5640R driver or required RIO software before reviewing the device in NI Measurement &amp; Automation Explorer.<\/p>\n<h4>No Input Signal Is Detected<\/h4>\n<p>Verify the input frequency, signal level, selected input channel and digital downconverter configuration. The inputs are AC-coupled, and their characterized passband begins at approximately 250 kHz.<\/p>\n<h4>Output Signal Level Is Lower Than Expected<\/h4>\n<p>Check whether CIC and inverse-sinc compensation are enabled. The typical full-scale output is approximately \u22124 dBm with default compensation enabled and can reach approximately +2 dBm with the compensation filters disabled.<\/p>\n<h4>FPGA Bitfile Cannot Be Downloaded<\/h4>\n<p>Confirm that the FPGA application was compiled specifically for the PXIe-5641R target. Verify that the required LabVIEW FPGA and NI-RIO versions are installed.<\/p>\n<h4>Samples Are Lost During Continuous Acquisition<\/h4>\n<p>Reduce the data rate through FPGA filtering or decimation, increase host-side buffering and verify the available PXI Express bandwidth. Peer-to-peer streaming may be appropriate when data must be sent directly to another compatible module.<\/p>\n<h4>Channels Are Not Synchronized<\/h4>\n<p>Confirm that both channels use the intended clock source and start trigger. For multiple modules, distribute a common reference clock and use PXI trigger resources to coordinate acquisition and generation.<\/p>\n<h3>PXIe-5641 Comparison with Related RF Instruments<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n<th>Primary Function<\/th>\n<th>Recommended Selection<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PXIe-5641<\/td>\n<td>Dual-input, dual-output reconfigurable IF transceiver<\/td>\n<td>Custom FPGA-based IF acquisition and generation<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5820\/\">PXIe-5820<\/a><\/td>\n<td>Baseband vector signal transceiver<\/td>\n<td>Wider-bandwidth baseband and direct I\/Q applications<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5841\/\">PXIe-5841<\/a><\/td>\n<td>RF vector signal transceiver<\/td>\n<td>Integrated RF signal generation and analysis<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5668\/\">PXIe-5668<\/a><\/td>\n<td>Vector signal analyzer<\/td>\n<td>High-performance RF spectrum and modulation analysis<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5673\/\">PXIe-5673<\/a><\/td>\n<td>Vector signal generator<\/td>\n<td>Standard RF waveform generation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Recommended Related Products<\/h3>\n<ul>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5820\/\">PXIe-5820 Baseband Vector Signal Transceiver<\/a> \u2013 suitable for high-bandwidth baseband and direct I\/Q testing<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5841\/\">PXIe-5841 Vector Signal Transceiver<\/a> \u2013 combines RF signal generation and analysis in one instrument<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5668\/\">PXIe-5668 Vector Signal Analyzer<\/a> \u2013 supports spectrum and modulation measurements<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-5673\/\">PXIe-5673 Vector Signal Generator<\/a> \u2013 provides modulated RF signal generation<\/li>\n<li><a href=\"https:\/\/pxisource.com\/ru\/product\/pxie-1092\/\">PXIe-1092 PXI Express Chassis<\/a> \u2013 provides a platform for synchronized RF and IF test systems<\/li>\n<\/ul>\n<p>Additional compatible RF hardware is available in our <a href=\"https:\/\/pxisource.com\/ru\/product-category\/%d0%bd%d0%b8\/pxi-%d1%81%d0%b8%d1%81%d1%82%d0%b5%d0%bc%d1%81\/%d0%bc%d0%be%d0%b4%d1%83%d0%bb%d0%b8-pxi\/\">NI PXI modules category<\/a>.<\/p>\n<h3>How to Select the PXIe-5641<\/h3>\n<p>Choose the PXIe-5641 when an application requires simultaneous dual-channel IF acquisition and generation with custom FPGA processing. It is especially useful for proprietary communications, real-time spectrum processing and software-defined radio development.<\/p>\n<p>Before purchasing, confirm the IF frequency, bandwidth, signal level, channel count, sampling rate, FPGA capacity, driver support, clocking requirements and PXI Express chassis compatibility.<\/p>\n<h3>Why Choose the PXIe-5641?<\/h3>\n<p>The PXIe-5641 combines dual IF inputs, dual IF outputs, 14-bit converters and a programmable FPGA in a compact PXI Express module. Its open processing architecture supports specialized acquisition, generation and real-time RF algorithms that cannot be implemented with conventional fixed-function instruments.<\/p>\n<h3>Frequently Asked Questions<\/h3>\n<h4>How many input and output channels does the PXIe-5641 provide?<\/h4>\n<p>The PXIe-5641 provides two 14-bit IF input channels and two 14-bit IF output channels.<\/p>\n<h4>What is the maximum IF frequency?<\/h4>\n<p>The module supports IF signals through 80 MHz. Its characterized analog passband extends from approximately 250 kHz to 80 MHz because the inputs and outputs are AC-coupled.<\/p>\n<h4>What are the maximum sampling rates?<\/h4>\n<p>The analog inputs sample at rates up to 100 MS\/s, while the analog outputs operate at rates up to 200 MS\/s.<\/p>\n<h4>Which FPGA does the PXIe-5641 use?<\/h4>\n<p>The module uses a Xilinx Virtex-5 SX95T FPGA with 94,208 logic cells and 640 DSP blocks.<\/p>\n<h4>Does the PXIe-5641 include onboard memory?<\/h4>\n<p>Yes. It includes 128 MB of onboard DRAM for acquisition buffering, waveform storage and FPGA processing.<\/p>\n<h4>Can the PXIe-5641 generate RF signals directly?<\/h4>\n<p>The PXIe-5641 is an IF transceiver operating through 80 MHz. Higher-frequency RF operation requires external frequency conversion or a vector signal transceiver designed for direct RF generation and analysis.<\/p>\n<h4>Can the PXIe-5641 be programmed with LabVIEW FPGA?<\/h4>\n<p>Yes. It can be programmed using LabVIEW FPGA for custom processing or operated through the NI-5640R instrument driver.<\/p>\n<h4>What is the part number for the PXIe-5641?<\/h4>\n<p>The standard NI part number for the PXIe-5641 is <strong>780710-01<\/strong>.<\/p>\n<h3>Request a Quote for the PXIe-5641<\/h3>\n<p>Contact us for current availability, lead time and project pricing for the <strong>PXIe-5641 Reconfigurable IF Transceiver<\/strong>. We can also help identify compatible PXI chassis, controllers, RF conversion modules, cables and software for your test system.<\/p>","protected":false},"excerpt":{"rendered":"<p>Life Cycle Status: LTB<br \/>\nLast Time Buy Date: 2026-09-30<\/p>","protected":false},"featured_media":31764,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[728],"product_tag":[],"class_list":["post-32691","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-rf-and-wireless-test","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NI PXIe-5641 PXI IF Transceiver 780710-01, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"The PXIe-5641 is a dual-input, dual-output 80 MHz IF transceiver with 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