ZTEC RF/IF Instruments Deliver Accurate Testing for 802.11ac Standards and WiMAX Protocols

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The ZT844x Series Offers the Widest Instantaneous Bandwidth and Highest Dynamic Range on the Market

ZTEC Instruments (http://www.ztecinstruments.com) today announced the ZT844x Series RF/IF digitizers/baseband signal analyzers for RF and microwave receiver applications including wireless and semiconductor RFIC testing. The ZT844x Series offers engineers a cutting-edge combination of more instantaneous bandwidth to receive and process next-generation digital communication signals, and more input signal dynamic range to provide higher wireless data rates. With the ZT844x Series, engineers have software-defined, synthetic modular instruments that easily and efficiently achieve accurate design verification, characterization and test of RF and microwave integrated devices, circuits, and systems. The new devices address the current bandwidth and dynamic range challenges that test engineers face in testing new communication standards such as the 802.11ac Wi-Fi standard and WiMAX protocols.

“The ZT844x Series combines the easy-to-use, protocol-specific processing of a ‘one-box’ tester with the modularity, programmability and flexibility of a software-defined synthetic instrument,” said Christopher Ziomek, ZTEC President. “This functionality gives engineers a flexible solution to meet the demands of emerging standards like 802.11ac.”

Emerging Standards Require New, Enhanced Tools
The new 802.11ac Wi-Fi standard will achieve a 1 Gbps data rate by increasing the instantaneous bandwidth to 160 MHz with 80 dB spurious-free dynamic range (SFDR). With studies expecting that nearly one billion 802.11ac devices will ship by 2015, engineers must be prepared to meet market demands and test these devices with adequate and accurate tools. To test the 802.11ac Wi-Fi standard, engineers need the ZT844x devices, high-performance instruments that provide a combination of instantaneous bandwidth and dynamic range.

In addition, the ZT844x will be able to receive and analyze 802.11n (as well as other Wi-Fi standards that use OFDM modulation, including 802.11a and 802.11g) signals. ZTEC begins with the 802.11n protocol and adds 802.11ac functionality to extend the 802.11n standard with instantaneous bandwidth up to 160MHz, more MIMO channels, and higher density modulation, up to 256QAM.

A Flexible Solution for Test Engineers
The ZT844x series of RF/IF digitizers provide the core digital communication signal processing functionality of a vector signal analyzer (VSA) used to receive, capture and measure digital communication signals. As a stand-alone instrument, the ZT844x can be used as a baseband, IF, or low-frequency RF VSA covering a frequency range from DC up to 1 GHz. When combined with a microwave down-converter, the VSA capability of the ZT844x can be extended to microwave frequencies of 50 GHz or more.

In addition to instantaneous bandwidth and high dynamic range capabilities, the ZT844x Series of devices provide on-instrument data processing, protocol-specific processing, and advanced triggering and synchronization. On-instrument data processing offers engineers real-time processing including digital downconversion (DDC), zoom FFT, RBW-optimized windowing, and marker measurements to increase test throughput and ease the development of automated tests. With protocol-specific processing, engineers can achieve demodulation, symbol extraction and intelligent measurements such as error vector magnitude (EVM) for next-generation wireless standards. In addition, advanced triggering and synchronization provides the ability to extract and measure symbols of the digital modulation coding, as well as the ability to capture other pulsed or time-domain modulated signals.

Award-Winning Device To Serve Future RF Needs
The ZT8441 RF/IF digitizer was named as a finalist for the Test & Measurement World Best in Test award. Selected as finalists because of their full-featured, on-instrument spectrum analyzer and unmatched technical specifications, the ZTEC instruments are poised to supply the rapidly growing RF market with a world-class testing solution at a competitive price for applications from testing military aircraft to testing Wi-Fi standards, such as the up and coming 802.11ac standard.

Product Specifications
ZT8441/2 RF/IF Digitizer:

  • PCI, PXI, LXI, VXI platform device
  • DC to 1 GHz frequency
  • 100 Hz to 160 MHz instantaneous IF bandwidth
  • FPGA-based DDC with fractional resampling real-time signal processing
  • 100 S/s to 400 MS/s alias-free sample rate
  • Dual 400 MS/s 14-bit ADC
  • More than 80 dBc spurious-free dynamic range
  • RF/IF channels or dual I/Q inputs
  • 512 MB (up to 128 MSamples of complex I/Q data pairs) memory
  • +10 dBm maximum signal range
  • Synchronization of multiple ZT844x instruments for systems with more than 2-channel MIMO

For more information on the ZT844x Series RF/IF digitizers, readers can visit http://www.ztecinstruments.com.

About ZTEC
ZTEC Instruments is a leading modular instrument company whose products include oscilloscopes, waveform generators, and RF and IF digitizers for applications from testing military/aerospace to testing the latest global Wi-Fi standards. ZTEC Instruments’ products provide powerful bench-top instrument capabilities in modular instrument form factors, including PXI, VXI, LXI and PCI. For more information about ZTEC Instruments and how our products can address your test and measurement needs, please visit http://www.ztecinstruments.com.


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