R&S EX-IQ Base Band Generator

Descripción

R&S EX-IQ BASE BAND GENERATOR

Brief Description

The R&S®EX-IQ-Box is a digital interface module that provides flexible digital baseband inputs or outputs for signal generators, signal analyzers and communications testers from Rohde & Schwarz. The main application field of this device is the conversion of digital I/Q signals of R&S instruments into user defined or standardized digital signal formats and vice versa.

For applications with user defined protocols the R&S®EX-IQ-Box enables either serial or parallel transmission of I/Q signals to a DUT, including variable clock modes, various data rates as well as different logical signal levels. The connection to the device under test is done in a straight-forward approach via adapter boards (=breakout boards) that are plugged directly to the R&S®EX-IQ-Box.

In applications with standardized protocols, the R&S®EX-IQ-Box provides not only the I/Q data, but also control information of the respective standard. Equipped with the corresponding options, the R&S®EX-IQ-Box supports the standardized interface protocols CPRI™ (common public radio interface), as well as DigRFSM. Both define an interface for the transmission of I/Q and control data between the baseband and RF module of a base station or mobile terminals respectively.

The parameters can conveniently be set via the R&S®DigIConf digital interface configuration software.

When equipped with the R&S®EX-IQ-Box, a Rohde & Schwarz vector signal generator delivers realistic digital baseband signals for testing digital transceivers or other components. It can thus cover all common state-of-the-art standards such as LTE, WiMAX™ and 3GPP including HSPA, as well as user-defined signals and effects such as fading, AWGN or I/Q impairments. The R&S®EX-IQ-Box plus a signal analyzer from Rohde & Schwarz enable the reliable analysis of digital baseband components. As an accessory for a Rohde & Schwarz communications tester, the R&S®EX-IQ-Box acts as a versatile digital baseband interface for signal generation and signal evaluation.

 

Key Facts

  • Conversion of digital I/Q signals to and from the device under test
  • Flexible user-defined digital I/Q interface settings
  • Two breakout boards included (single-ended, differential connectors) for connection of the device under test
  • Easy interface configuration via enclosed R&S®DigIConf software
  • Transient recorder in R&S®DigIConf for visual control of generated digital signals
  • Optional support for DigRFSM
  • Optional support for CPRI™

 

 

 

 

Features

·         General Features

  • Digital I/Q interface for signal generators, analyzers and communications testers from Rohde & Schwarz
  • Standard-compliant digital baseband signals
  • Signal generation for all important state-of-the-art standards such as EUTRA/LTE, 3GPP FDD, HSPA, WiMAX, GSM/EDGE, etc. (together with the R&S®SMU200A, R&S®SMJ100A, R&S®SMBV100A or R&S®AMU200A)
  • Versatile signal processing functionalities, including AWGN generation and I/Q impairments (together with the R&S®SMU200A, R&S®SMJ100A, R&S®SMBV100A or R&S®AMU200A)
  • Fading simulation (together with the R&S®SMU200A, R&S®AMU200A)
  • Simple and flexible conversion of digital baseband signals into analog IF or RF signals (together with the R&S®SMU200A, R&S®SMBV100A or R&S®AMU200A)
  • Vector signal analysis of digital baseband signals of all important modern standards such as EUTRA/LTE, 3GPP FDD, HSPA, WiMAX, GSM/EDGE, etc. (together with the R&S®FSW, R&S®FSQ, R&S®FSG, R&S®FSV, R&S®FSVR or R&S®FMU)
  • State-of-the-art test solution for wideband radiocommunications tests at the digital baseband interface of components (together with the R&S®CMW500)
  • LVTTL, CMOS and LVDS logic standards
  • Two breakout boards included (single-ended, differential connectors) for connection of the device under test
  • Maximum data rate of 100 MHz, variable resampling in conjunction with the connected Rohde & Schwarzinstrument
  • Variable word size from 4 to 18 bits for I and Q
  • Parallel and serial formats
  • SDR and DDR data rates
  • Non-interleaved and I/Q and Q/I interleaved formats
  • Selectable bit order and word alignment
  • Two's complement and binary offset representation
  • Negate I and Q data
  • Positive and negative logic
  • Maximum clock rate of up to 100 MHz for parallel formats and up to 400 MHz for serial formats
  • Internal and extermal clock reference
  • Selectable clock phase (90° steps) and skew (±5 ns)
  • Variable signal interface
  • Easy interface configuration via enclosed R&S®DiglConf software
  • Future-safe concept allows extension to cover standardized as well as user-defined interface protocols via additional breakout boards

·         Digital Interface Protocol User Defined

  • Flexible data formats
  • Flexible clock generation

·         Digital Interface Protocol DigRF (SM)

(with R&S®EXBOX-B81 and R&S®EXBOX-K13)

  • Test of DigRFSM 3G RFICs by means of R&S®EXBOX-K13 option
  • Flexible hardware configuration and test case definition via freely configurable scripts
  • Hardware scheduler with timing resolution of 6.4 ns
  • PN16 and sine test signal generator for the physical layer DigRFSM signal
  • Payload tester
  • DigRFSM specific breakout board for interfacing with the DUT (R&S®EXBOX-B81 option)
  • Support of DigRFSM 3G signals
  • Clock frequencies of 19.2/26/38.4/52 MHz
  • GPIO and GPIO group signals as well as SPI, I2C and RFFE buses for communications with external devices
  • Four user I/O BNC connectors with freely assignable function (trigger, marker, etc.)
  • Direct waveform playback from R&S®EX-IQ-Box waveform memory (64 Msample) with R&S®EXBOX-K90 option
  • Multi-waveform playback for simultaneous output of up to 4 waveforms with R&S®EXBOX-K91 option
  • Recording memory (512 Mbyte) for capturing of I/Q data that is received via the DigRFSM link
    (R&S®EXBOX-K94 option)
  • Support of R&S®WinIQSIM2 waveform creation software

·         Digital Interface Protocol CPRI™

(with R&S®EXBOX-B85 and R&S®EXBOX-K10/-K11 options; only R&S®EX-IQ-Box 1409.5505K04)

  • Test of CPRI radio equipment (RE) with R&S®EXBOX-K10 option
  • Test of CPRI radio equipment control (REC) with R&S®EXBOX-K11 option
  • Predefined interface settings for 3GPP FDD (incl. HSDPA, HSUPA, HSPA+), LTE, WiMAX and CDMA2000 as well as user defined configuration
  • Line bit rates of 1228.8 Mbit/s (=2x), 2457.6 Mbit/s (=4x) and 3072.0 Mbit/s (=5x)
  • Uplink, downlink as well as full-duplex operation
  • Flexible or packed antenna-carrier (AxC) allocation
  • Antenna-carrier (AxC) grouping
  • Vendor specific dataVendor specific data
  • HDLC (high level data link control) supported
  • Control and management (C&M): “fast C&M” (realtime via Ethernet) and “slow C&M” (realtime via HDLC)
  • Easy interface configuration via R&S®DiglConf software
  • CPRI specific breakout board for interfacing with the DUT R&S®EXBOX-B85
  • Support of standard small form factor pluggable (SFP) modules for optical link
  • Additional SMA connectors for simultaneous monitoring of the CPRI output or for supply of the Rx input signal
  • Direct waveform playback from R&S®EX-IQ-Box waveform memory (64 Msample) with R&S®EXBOX-K90 option
  • Multi-waveform playback for simultaneous output of up to 4 waveforms with R&S®EXBOX-K91 option
  • Recording memory (512 Mbyte) for capturing of I/Q data that is received via the CPRI link
    (R&S®EXBOX-K94 option)
  • Support of R&S®WinIQSIM2 waveform creation software