User manual TEKTRONIX RFXPRESS DATASHEET

[. . . ] In Auto mode, the software can automatically calculate the waveform length (in time (sec), samples, or symbols) and the sampling rate required to accurately create the desired output from the arbitrary waveform generator. RFXpress also includes a calibration feature that can pre-distort the signals to provide flat frequency and linear phase response from the AWG output. RFXpress enables users to easily replicate waveforms from Tektronix oscilloscopes (*. wfm), and IQ waveforms of a real-time spectrum analyzer (*. iqt, *. tiq). Impairments, distortion, or interference can then be added to thoroughly stress test designs. [. . . ] Parts of the OFDM packets can be stressed by adding Gated Noise to it. SPARA is a software module for RFXpress that provides emulation of RF components from touchstone files. You can cascade multiple touchstone files to emulate a RF chain. The effect of the RF component can also be de-embedded by selecting the Inversion option. This option also adds a provision to characterize a two-port device (DUT). A wizard guides you through a step-by-step process to obtain S21 characteristics (Insertion Loss) of the device in a text format. Applications Design, Characterize, and Debug Wideband Wireless Communications Receivers Generate General-purpose Digitally Modulated IQ, IF, and RF Signals Design, Debug, and Development of Radar Receivers and Radar Systems Characterize WiMedia MB-OFDM Ultra Wideband (UWB) Radio Platform for Applications like Wireless USB (WUSB), FireWire, Bluetooth, and Others *1 MATLAB® is a registered trademark of Math Works. *2 Using Tektronix AWG7122 models with Option 06, BG5 requires calibration. *3 Using a Tektronix AWG7000 or AWG5000 Series AWG with Option 08. RF Signal Generation Made Easy RF signals are becoming more and more complex, making it more difficult for RF engineers to accurately create the signals required for conformance and margin testing. To address this design challenge, RFXpress delivers advanced RF/IF/IQ creation and editing tools. RFXpress is a software package that digitally synthesizes modulated baseband, IF, and RF signals taking signal generation to the new levels by fully exploiting the wideband signal generation capabilities of Tektronix arbitrary waveform generators (AWGs). 2 www. tektronix. com Advanced RF/IF/IQ Waveform Software -- RFX100 RFXpress® UWB-WiMedia (UWBCF/UWBCT) is a software module for RFXpress that has the capability to digitally synthesize and generate signals in the UWB spectrum. As per the latest WiMedia specification, the software module can recreate signals that are required to band hop in real time over 1. 5 GHz modulation bandwidth. UWBCF/UWBCT gives users complete control over the characteristics of the WiMedia signal including the preamble synchronization sequences, cover sequences, and TFCs in all band groups. All six band groups (BG1 to BG6) can be generated in either IQ, IF, or Direct RF signals giving users 3 different options for creating/up-converting the signals. The software operates in two modes, in the conformance mode (UWBCF) users can generate the standard waveforms that conform to the latest version of the WiMedia's specifications, in the custom mode (UWBCT) users can adjust any part of the signal header or payload to perform for stress and margin testing. RFXpress runs on a PC or as an integral part of Tektronix AWG7000 and AWG5000 Series arbitrary waveform generators. Instrument Control Characteristic Description Tektronix Arbitrary Waveform Generators RFXpress runs on an external PC or an integral part of the AWG7000 and AWG5000 Series. When installed as an integral part of the instrument waveform transfer and control can be performed directly from RFXpress. Sampling Rate, Interleave and Zeroing On/Off, Amplitude, Offset, Run, Stop and Channel Output On/Off, Sequence Run Mode (For radar plug-in only) Digital markers Amplitude High, Low, and Delay Remote-control Tektronix oscilloscope parameters from Tektronix RFXpress Oscilloscopes Controls Analog Characteristics*4 *4 All ranges mentioned in the data sheet are for AWG7122 models with Opt. 06 until and otherwise explicitly stated. Controls General settings Vertical settings Horizontal settings Tektronix Spectrum Analyzers Run, Stop, Single, and Autoset Channel, Scale Scale, Record Length, Sampling Rate Remote-control Tektronix real-time spectrum analyzer parameters from RFXpress Software Digital Modulation software creation package. Controls Settings Compatibility for Import and Replication of Waveform Files Product Description Oscilloscopes Arbitrary Waveform Generators Real-time Spectrum Analyzers Others Tektronix TDS6000, MSO70000, DSA70000, DPO70000, and DPO7000 Series (*. wfm) Tektronix AWG400, AWG500, AWG600, and AWG700 Series (*. wfm) Tektronix RSA3000 and RSA6000 Series (*. iqt , *. tiq) MATLAB®*1 Binary Formats (*. mat), ADS®*5 (*. txt), VSA®*5 (*. csv) Center, Start, Stop Frequency, Span, Step Size, Max Trace Points Acquire Bandwidth, Samples, and Length Analysis Offset, Length, Time Zero Ref, Amplitude Ref Levels IQ Modulators Remote-control PSG®*5 ­ E8267D modulator parameters from RFXpress Controls Frequency, Frequency Offset, Amplitude, Amplitude Offset, Output RF On/Off, Output Mod On/Off, Source Type, Frequency Mode, ALC On/Off, ALC Mode, ALC Bandwidth, ALC Levels, Attenuation Hold On/Off, ALC Power, Attenuation Carrier leakage IQ State, IQ Adjustment, I Offset and Q Offset suppression *5 PSG®, ADS®, VSA® are registered trademarks of Agilent Technologies. *1 MATLAB® is a registered trademark of Math Works. (Can be defined in pSIFS and pMIFS) Payload Source WiMedia Spec Example ALL 0 (Zero), ALL 1 (One) PRBS7, 9, 15, 16, 20, 21, and 23 User Defined (by file input) Tone Nulling ­40 dB to +20 dB MAC Header 10 byte MAC header data can be selected from WiMedia Spec Example ALL 0 (Zero), ALL 1 (One) PRBS7, 9, 15, 16, 20, 21, and 23 User Defined: wherein user can enter the MAC header pattern and file input Packet Mode Standard, Burst Preamble Type Standard or Burst for data rates greater than 200 Mb/s Packet Size Standard mode 0 to 4095 Burst mode 1 to 4095 BandGroup BandGroup1 to BandGroup6 TF Code TFC1 to TFC10 BandGroup Can be defined by the user Center Frequency RF and IF Calibration IQ Impairments Carrier leakage I: ­50% to +50% Q: ­50% to +50% Quadrature ­30° to +30° error IQ imbalance ­30% to +30% k2: ­3 dB to +3 dB AM/AM k3: ­3 dB to +3 dB conversion AM/PM k2: ­30° to +30° conversion k3: ­30° to +30° Hardware ­100 ps to +100 ps (AWG7000) skew ­5 ns to +5 ns (AWG5000) Distortion Addition No linear, soft limiting, hard limiting Amplifier distortion amplifier k3: ­3 dB to +3 dB AM/AM k5: ­3 dB to +3 dB conversion AM/PM k3: ­30° to +30° conversion k5: ­30° to +30° Interference Addition Frequency ­12 GHz to +12 GHz (AWG7000 Option 02/06) offset ­6 GHz to +6 GHz (AWG7000 standard option) ­600 MHz to +600 MHz (AWG5000) ­60 dB to 60 dB Sinusoidal interference C/I Real-world signal WiMAX, WiFi (MIMO), WiFi (802. 11a), Radar, IQ Interference interference Signal as file input Frequency 1 Hz to 12 GHz Amplitude ­60 dB to +60 dB Signal Addition Software, Hardware IQ and RF/IF Gated Noise Packets Preamble S/N, PLCP Header S/N, Payload S/N ­ "­40 dB to +20 dB" Symbols S/N ­40 dB to +20 dB Multipath 0 to 10 # of paths Delay ­2 symbols to +2 symbols Amplitude ­60 dB to 0 dB Phase ­180° to +180° Conformance Mode Data rates 53. 3, 80, 106. 7, 160, 200, 320, 400, and 480 Mb/s Custom Mode TF code TFC1 to TFC10 and user defined. [. . . ] and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specification and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. [. . . ]