The M9331A is a wideband arbitrary waveform generator (AWG) capable of creating digitally modulated

waveforms for wideband communication systems. Each channel of the M9331A operates at 1.25 GS/s and

features 10 bits of vertical resolution, which is ideal for compliance testing of digital radios targeted for use

with emerging communicastandards such as MB-OFDM ultra wideband, 802.11n, MIMO, and proprietary

wideband formats.

– 1.25 GS/s and 10 bits of vertical resolution per channel provides wideband waveforms with

exceptionally low EVM

– Dual output channels drive both single-ended and balanced designs without the need for baluns

or hybrids

– Extended memory and advanced sequencing engine allows for extended simulations of complex wave-

form propagation models

– Multiple module synchronization provides multi-emitter simulations suitable for MIMO applications

– Multiple programmatic interfaces enable easy integration into existing test environments

Generate Wide Bandwidth AND Low EVM Signals, Simultaneously

The M9331A is a 4 slot 3U PXI module that offers dual differential output channels to drive both single-

ended and balanced designs. The AWG also supports advanced sequencing and triggering modes to

create event-based signal simulations. Multiple M9331A modules can be synchronized for the generation

of phase-coherent, multi-emitter scenarios. Waveform development tasks are simpliied using the AWG’s

numerous programmatic interfaces including complete instrument control from the MATLAB

line and from LabVIEW. When the M9331A is combined with a wideband I/Q upconverter, modulation band-

widths of 1 GHz can be realized at RF frequencies

for signal simulations employed in functional testing of chip

Introduction

1. Keysight E8267D PSG signal generator with option 016 wide-

band I/Q inputs.

Extended performance

The M9331A gives designers access to Digital-to-Ana-

log Converter (DAC) technology capable of generating

wideband digital communications signals with ultra-low

EVM. Each module incorporates two high-speed DACs

to create 500 MHz of signal bandwidth and ≤ –50 dBc

SFDR across each channel. Users have the choice of

driving their designs differentially from the DAC outputs

or through multiple signal-conditioning paths. Although

some AWGs require users to make a trade-off between

the number of output channels and differential outputs,

the M9331A provides both–allowing you to drive your

designs and eliminating the need for baluns or hybrids

in the test path. In addition, each channel can output

waveforms as an IF or as a baseband signal for

I/Q upconversion.

2.9% EVM

-1.2 -1.0

-0.8 -0.6

-0.2

-0.4

0.0 0.2

0.4

0.6

0.8

1.0

1.2

Index (5124.000 to 10247.000)

Data

Figure 1b. Create UWB reference waveforms with low EVM.

Figure 1a. Generate MB-OFDM compliant UWB waveforms.