Aeroflex 3035C Manuale utente
3035C
Wideband RF Digitizer
PXI Module
Operating Manual
Document no. 46892/836
Issue A provisional
28 February 2008
PREFACE
ii
About this manual
This manual applies to instruments with software driver issues of 3.0 and higher.
This manual explains how to set up and configure an Aeroflex 3035C wideband RF digitizer
PXI module. Where necessary, it refers you to the appropriate installation documents that are
supplied with the module.
This manual provides information about how to configure the module as a stand-alone device.
However, one of the advantages of Aeroflex 3000 Series PXI modules is their ability to form
versatile test instruments, when used with other such modules and running 3000 Series
application software.
Getting Started with afDigitizer (supplied on the CD-ROM that accompanies each module
(see Associated documentation)) explains how to set up and configure a 3030 Series RF
digitizer with a 3010 Series RF synthesizer module to form a high performance digitizer
instrument. Using the digitizer soft front panel and/or dll or COM object supplied, the
modules form an instrument that provides the functionality and performance of an integrated,
highly-specified RF digitizer, but with the adaptability to satisfy a diverse range of test or
measurement requirements.
© Aeroflex International Ltd. 2008
No part of this document may be reproduced or transmitted in any form
or by any means, electronic or mechanical, including photocopying,
or recorded by any information storage or retrieval system,
without permission in writing by Aeroflex International Ltd.
(hereafter referred to throughout the document as ‘Aeroflex’).
© Aeroflex International Ltd. 2008
No part of this document may be reproduced or transmitted in any form
or by any means, electronic or mechanical, including photocopying,
or recorded by any information storage or retrieval system,
without permission in writing by Aeroflex International Ltd.
(hereafter referred to throughout the document as ‘Aeroflex’).
PREFACE
iii
Intended audience
Users who need to configure and operate the 3035C wideband RF digitizer to down-convert
and digitize RF signals.
This manual is intended for first-time users, to provide familiarity with basic operation.
Programming is not covered in this document but is documented fully in the help files that
accompany the drivers and associated software on the CD-ROM.
Driver version
This PXI RF module is designed to be used with the latest software driver version supplied on
the Aeroflex 3000 Series PXI Modules CD-ROM part no. 46886/028. Operation with earlier
versions of driver software is not supported.
Structure
Chapter 1 General information
Chapter 2 Installation
Chapter 3 Operation
PREFACE
iv
Associated documentation
If you want to… Refer to…
Find information about soft front panels,
drivers, application software, data
sheets, getting started and operating
manuals for this and other modules in
the 3000 Series.
PXI Modules CD-ROM
Part no. 46886/028
Supplied with the module
Install modules into a rack, interconnect
them, power up and install drivers. 3000 Series PXI Modules Common Installation Guide
Part no. 46882/663
On paper, on the CD-ROM and on www.aeroflex.com
Set up a populated chassis ready for
use. 3000 Series PXI Modules Installation Guide for
Chassis
Part no. 46882/667
On paper, on the CD-ROM and on www.aeroflex.com
Set up and use the universal PXI
application for system configuration and
operation.
PXI Studio User Guide
Part no: 46892/809
On the CD-ROM and on www.aeroflex.com
Set up and use a signal generator
application for 3010 Series and
3030 Series modules.
Getting Started with afDigitizer
Part no. 46892/676
On the CD-ROM and on www.aeroflex.com
PREFACE
v
Preface
The PXI concept
VXI and GPIB systems meet the specific needs of instrumentation users but are often too
large and expensive for mainstream applications. PC-based instrumentation may cost less but
cannot meet the environmental and operational requirements of many systems.
PXI (PCI Extensions for Instrumentation) is based on CompactPCI, itself based on the PCI
standard. PCI was designed for desktop machines but CompactPCI was designed for
industrial applications, and features a rugged Eurocard format with easy insertion and
removal. PXI adds to the CompactPCI specification by defining system-level specifications
for timing, synchronization, cooling, environmental testing, and software. While PXI extends
CompactPCI, it also maintains complete interoperability so that you can use any CompactPCI-
compliant product in a PXI system and vice versa. PXI also makes use of Windows software,
VXI timing and triggering, and VXIplug&play instrument drivers to provide powerful and
affordable systems.
®is a registered trademark of Aeroflex International Inc. in the US
PXI™ is a registered trademark of the PXI Systems Alliance
Windows™, Windows XP™ and Windows NT™ are trademarks of Microsoft Corporation
PREFACE
vi
Abbreviations/acronyms
ACLR Adjacent Channel Leakage Ratio
ACP Adjacent Channel Power
ACPR Adjacent Channel Power Ratio
ADC Analog-to-Digital Converter
AM Amplitude Modulation
ARB Arbitrary Waveform Generator
CW Continuous Wave
DAC Digital-to-Analog Converter
dB Decibels
dBc Decibels relative to the carrier level
dBm Decibels relative to 1 mW
FFT Fast Fourier Transform
FM Frequency Modulation
FPGA Field Programmable Gate Array
GND Ground
IQ In-phase/Quadrature
LO Local Oscillator
LSTB List Strobe
LVDS Low-Voltage Differential Signaling
PCI Peripheral Component Interconnect
Pk-Pk Peak-to-Peak
PREFACE
vii
PXI PCI eXtensions for Instrumentation
F Radio Frequency
RMS Root Mean Square
SFP Soft Front Panel
SMA SubMiniature version A (connector)
SMB SubMiniature version B (connector)
TDMA Time Division Multiple Access
TRIG Trigger
TTL Transistor-Transistor Logic
UUT Unit Under Test
VCO Voltage-Controlled Oscillator
VHDCI Very High Density Connector Interface
VSWR Voltage Standing-Wave Ratio
VXI VMEbus Extension for Instrumentation
1-1
Chapter 1 GENERAL INFORMATION
Introduction
Welcome to the operating manual for the 3035C Wideband RF Digitizer PXI module.
The 3035C, when used with a 3010 Series PXI RF synthesizer module, forms a compact
wideband RF digitizer that occupies four slots in a 3U PXI chassis.
GENERAL INFORMATION
1-2
Applications
The 3035C down-converts and digitizes RF signals. It converts an analog RF waveform
presented at its RF port into a series of amplitude- and phase-corrected digital IF or IQ data
pairs at the rear-panel PCI and front-panel data interfaces. Software supplied with the module
allows for spectrum analysis of the digitized signals.
The 3035C can be used in RF test and measurement systems used in development or
manufacturing. Applications span all areas of radio communications.
PXI Express compatibility
The 3035C is a hybrid slot-compatible PXI-1 peripheral module.
Wide frequency coverage
The module provides continuous frequency coverage from 250 kHz to 6 GHz. A linear
single-stage down-converter converts input signals to an IF centered on 187.25 MHz.
Input range and accuracy
Input level control is provided by electronic switched attenuation, which helps to maximize
the usable dynamic range. Good level accuracy and repeatability make the module ideal for
high-volume manufacturing.
Wide bandwidth
The 3035C produces a 90 MHz wide digitized IF signal, with amplitude and phase correction
applied across 33 MHz. Full-rate digital IF or decimated IQ data can be output via LVDS,
useful for real-time emulation. Data can also be captured to internal memory and read over
the PCI bus.
For narrowband signal analysis, the module provides internal digital down-conversion and
decimation. Lowering the sample rate allows longer events to be captured. The module
contains digital resampling filters that allow you to set the sample rate, as well as numerous
preset values associated with common digital communications standards.
GENERAL INFORMATION
1-3
Signal routing
A configurable routing matrix provides flexibility in how you interconnect signals on the PXI
backplane and the LVDS front-panel input. Predefined routing scenarios can be selected, or
your own matrix settings stored and recalled.
Triggering and synchronization
The module synchronizes to an external 10 MHz signal (generally supplied by a 3010 Series
RF synthesizer). Triggering is external, from the PXI backplane or directly from the front-
panel LVDS connector or SMB TTL input, or internal, from the internal timer or level trigger.
List mode
In list mode, up to 128 internal hardware settings can be pre-calculated and stored, providing
fast switching of frequency whilst maintaining RF output accuracy. List addresses are
sourced externally or from an internal counter, possibly driven by the test application
controlling the module. In production, list mode enables faster testing and simplified
programming.
Software
The module is supplied with a VXI PNP driver and soft front panel for use as a self-contained
module. An instrument-level soft front panel is also provided, together with a dll and COM
object, combining the controls of the 3035C together with the 3010 Series RF synthesizer.
Refer to Getting Started with afDigitizer (part no. 46892/676) supplied on the PXI Modules
CD-ROM part no. 46886/028. An FFT spectrum analyzer measurement suite is supplied, and
optional signal analysis components are available to measure power, modulation quality and
spectra to recognized communications standards.
PXI Studio, also supplied with the module, configures your PXI modules as logical
instruments using an intuitive and powerful graphical interface. Currently, PXI Studio
provides comprehensive signal generator, digitizer and spectrum analyzer applications and
optional analysis plugins to suit various communications standards.
RF Investigator, also supplied with the module, is an application that provides combined
operation of all Aeroflex 3000 Series modules from a single user interface, especially useful
for acceptance testing.
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