Emona Instruments SIGEx ETT-311 User Manual

Signal processing add-on board for the ni elvis

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

ETT-311 SIGEx

User Manual

Signal Processing Add-on Board for the NI ELVIS

Table of Contents

Need help?

Do you have a question about the SIGEx ETT-311 and is the answer not in the manual?

Questions and answers

Summary of Contents for Emona Instruments SIGEx ETT-311

Page 1 ETT-311 SIGEx User Manual Signal Processing Add-on Board for the NI ELVIS...
Page 3 ETT-311 SIGEx User Manual Signal Processing Add-on Board for the NI ELVIS...
Page 4 +61-2-9519-3933 fax: +61-2-9550-1378 Copyright © 2011 Emona Instruments Pty Ltd and its related entities. All rights reserved. No part of this publication may be reproduced or distributed in any form or by any means, including any network or Web distribution or...
Page 5: Table Of Contents
Contents Introduction ..................... i SIGEx System Conventions..............iii How to handle, install and power up SIGEx™ ........v SIGEx™ QUICK START - Installation & Operation ..... vii SIGEx™ FUNCTIONAL BLOCKS 1 – ADDERS and GAIN ADJUST KNOB............1 2 – ANALOG OUT – NI ELVIS Function............3 3 –...
Page 7: Introduction
“universal language” of signal & systems, the BLOCK DIAGRAM. The Emona SIGEx add-in module, illustrated below, has a collection of functional blocks (called modules ) that the students can patch together to implement dozens of signal processing block diagrams © Emona Instruments Pty Ltd Introduction & Conventions...
Page 8 SIGEx uses the NI ELVIS for all electronic measurements and test equipment. SIGEx ADDER GAINS - controlled in MANUAL mode or via a PC-based NI ELVIS NI LabVIEW inputs and outputs available at the SIGEx front panel Introduction & Conventions © Emona Instruments Pty Ltd...
Page 9: Sigex System Conventions
Inputs, outputs, controls and switches are labeled so that a student who has had only a brief introduction to SIGEx can use the modules without needlessly referring back to this USER MANUAL. © Emona Instruments Pty Ltd Introduction & Conventions...
Page 10 The SIGEx is ideally suited to helping students experience abstract concepts and making mathematics actually come to life. Studies show that students “believe” unexpected feedback from hands-on equipment more than from purely software simulation. Introduction & Conventions © Emona Instruments Pty Ltd...
Page 11: How To Handle, Install And Power Up Sigex
SIGEx into position. Check for correct bracket alignment Power up SIGEx After SIGEx is correctly positioned, turn the NI ELVIS II/+ Prototyping Board Power switch ON. Turn NI ELVIS Prototype Board Power ON © Emona Instruments Pty Ltd Introduction & Conventions...
Page 12 ELVIS II/+ PROTOTYPE PCI SLOT, always turn the PROTOTYPING BOARD POWER switch OFF. ALWAYS STORE THE SIGEx BOARD IN A ESD-SAFE PLASTIC BAG – AS SUPPLIED WITH ORIGINAL PACKAGING. Ensure Prototype Board Power is OFF before removing SIGEx Introduction & Conventions © Emona Instruments Pty Ltd...
Page 13: Sigex™ Quick Start - Installation & Operation
• Always switch the NI ELVIS’ “PROTOTYPING BOARD POWER” switch to OFF before removing the SIGEx add-in module. • Please handle the SIGEx add-in module by the outer edges of the circuit board and store in the anti-static bag provided. © Emona Instruments Pty Ltd Introduction & Conventions...
Page 15: Adders And Gain Adjust Knob
The ADDER can also be used as a normal amplifier by using only one input and turning the gain of the other input to zero. It is not necessary to ground the unused input. All inputs and outputs are DC coupled. Emona SIGEx USER MANUAL © Emona Instruments...
Page 16 Gain Range -2 to 2 for a and b Gain Adjust –on-screen and manual, using GAIN ADJUST; 0.002 maximum resolution; Bandwidth approx 100kHz ADDER Block “f,g” Inputs –two inputs: f, g; Gain +1; Bandwidth approx 60kHz Emona SIGEx USER MANUAL © Emona Instruments...
Page 17: Analog Out - Ni Elvis Function
These two signals are generated through LabVIEW programs such as the SIGEx SFP. Refer to the NI ELVIS User Manual for programming and user information. BASIC SPECIFICATIONS DAC0 Function Output signal DAC0; +/- 10V DAC1 Function Output signal DAC1; +/- 10V Emona SIGEx USER MANUAL © Emona Instruments...
Page 18: Baseband Lpf
An active, 4 order, 1,8kHz lowpass filter. The lowpass filter may be used to filter analog signals greater than 1.8kHz BASIC SPECIFICATIONS Bandwidth DC to approx 1.8kHz Gain 0.9 Type 4 order Butterworth Emona SIGEx USER MANUAL © Emona Instruments...
Page 19: Delays With Sample & Hold
CLK input 100Hz to 50kHz, digital-level only, 0V to 5V; DELAY BLOCKS Number of blocks three independent DELAY blocks; Input level 4Vpk-pk, analog level signal; CONTROL CLK common with SAMPLE and HOLD CLK Gain 1.0 +/-5% Emona SIGEx USER MANUAL © Emona Instruments...
Page 20: Digital Out - Ni Elvis Function
Refer to the NI ELVIS User Manual for programming and user information. BASIC SPECIFICATIONS DO-0 Digital Writer outputs from NI ELVIS connection DO0 and DO1; DO-1 Variable frequency : 10-100,000 Hz Duty cycle: 1-99% Emona SIGEx USER MANUAL © Emona Instruments...
Page 21: Function Generator - Ni Elvis Function
VCO Input Voltage -5V < VCO < 5V FUNC OUT NI ELVIS Function Generator signal output FUNC_OUT; SYNC NI ELVIS Function Generator TTL-Compatible Clock Signal output SYNC_OUT; VCO NI ELVIS Function Generator FM input signal FM_IN; Emona SIGEx USER MANUAL © Emona Instruments...
Page 22: Integrate & Dump/Hold
INTEGRATE & HOLD output the signal at the IN terminal is integrated, and the voltage at the integrator at the instant of positive edge of the CLK signal is presented at the output; Emona SIGEx USER MANUAL © Emona Instruments...
Page 23: Integrators
The integration rate is set as illustrated in the following table: INTEGRATIO SWITCH RATE 12,000/S 18,400/S DOWN 30,000/S DOWN 500,000/S DOWN DOWN BASIC SPECIFICATIONS INPUT and OUTPUT analog-level, 2Vpk-pk INTEGRATION RATE 12,000/s to 500,000/s, user selectable Emona SIGEx USER MANUAL © Emona Instruments...
Page 24: Limiter
Medium-low DOWN Medium-high DOWN High DOWN DOWN BASIC SPECIFICATIONS INPUT analog-level signal, 2Vpk-pk OUTPUT bipolar, analog-level signal GAIN control sets limiter output from about 1Vpk-pk to a maximum of 7Vpk-pk Frequency range >50kHz Emona SIGEx USER MANUAL © Emona Instruments...
Page 25: Multiplier
It is defined with respect to the OUTPUT from the module and may be measured experimentally. BASIC SPECIFICATIONS Inputs analog-level signals, DC coupled Bandwidth approx 20kHz Characteristic k.X(t).Y(t) k approx 1.1 Emona SIGEx USER MANUAL © Emona Instruments...
Page 26: Pcm Encoder
The digital-level digitized data is output serially, one byte at a time. Each data byte represents the analog voltage value at the time of sampling and conversion by the analog-to-digital converter. The data bytes are referred to as code words. Emona SIGEx USER MANUAL © Emona Instruments...
Page 27 Input Vin +/-2.5Vpk, DC coupled Bit Clock Input >20kHz, digital-level Output Signal serial, digital-level data stream in offset binary format Output Format 8 bits data Frame Synchronization FS synchronization signal coincident with frame’s LSB Emona SIGEx USER MANUAL © Emona Instruments...
Page 28: Pcm Decoder
The format of the serial data expected at the PCM DATA input is exactly as generated by the PCM ENCODER module: PCM code words in standard offset binary, with the 8 bits allocated for data. Emona SIGEx USER MANUAL © Emona Instruments...
Page 29 Input PCM DATA serial, digital-level data stream in offset binary format Input Format 8 bits Bit Clock Input >20kHz, digital-level; positive edges of CLK & PCM DATA coincident Output Signal approximately +/-2Vpk, DC coupled Emona SIGEx USER MANUAL © Emona Instruments...
Page 30: Rc Network
A single 10k ohm resistor and 100nF capacitor are provided which can be patched in any RC configuration required. They are free-wheeling and GND connection must be made manually. BASIC SPECIFICATIONS Resistor 10kR, +/-5% Capacitor 100nF, +/-10% Time constant 10 Emona SIGEx USER MANUAL © Emona Instruments...
Page 31: Rectifier
RECTIFIER Precision halfwave rectifier. Halfwave buffered, precision rectifier. BASIC SPECIFICATIONS Input analog-level signal, 2Vpk-pk; Bandwidth DC to 10kHz (approx) Emona SIGEx USER MANUAL © Emona Instruments...
Page 32: Sequence Generator
The SYNC terminal outputs a digital pulse at the beginning of the X sequence. SYNC is a digital-level signal. X OUTPUT The length of sequence X is set by the 2-bit DIP switch, as illustrated in the following table: SEQUENCE SWITCH LENGTH DOWN DOWN 16,384 DOWN DOWN Emona SIGEx USER MANUAL © Emona Instruments...
Page 33 Sequence description UP/UP: Maximal length, single bit SYNC pulse UP/DOWN: Maximal length, double bit SYNC pulse DOWN/UP: Non-Maximal length, single bit SYNC pulse (repeats every 21 bits) DOWN/DOWN: Maximal length, single bit SYNC pulse Emona SIGEx USER MANUAL © Emona Instruments...
Page 34: Tuneable Lpf
The amplitude of the output signal can be control via front panel GAIN control. BASIC SPECIFICATIONS Filter Range 20 Hz to 12 kHz Filter Order 8th order, Elliptic Stopband Attenuation > -50dB at 1.4 f and Passband Ripple < 0.5dB Gain Control 0 to x1.6 Emona SIGEx USER MANUAL © Emona Instruments...
Page 35: Installing The Emona Sigex Software
For users with LabVIEW versions prior to LV2009, this RTE is available for free download from the NI website. From time to time, EMONA Instruments will release upgraded documentation and accompanying software. These will be downloadable, and registered users of SIGEx will be advised by email when these upgrades become available.
Page 36: Using The Sigex Sfp
The POWER LEDs must be fully and equally lit. As well, the LEDs A & B should be lit. LED A will be constantly lit and is driven by the PULSE GENERATOR output. Its intensity varies with the duty cycle of the PULSE GENERATOR signal. Emona SIGEx USER MANUAL © Emona Instruments...
Page 37 4. .That the PC, NI-DAQ and NI ELVIS are connected correctly. 5. That the NI ELVIS virtual instruments are functioning correctly. 6. That the SIGEx add-in module is correctly positioned and plugged-into the NI ELVIS PCI slot. Emona SIGEx USER MANUAL © Emona Instruments...
Page 38: Sigex™ System Specifications
Power Source supplied via NI ELVIS edge connector: +5V, +15V, -15V rails consume <200mA each ENVIRONMENTAL Operating Temperature Range 10 to 30 degrees C Storage Temperature Range 5 to 40 degrees C Humidity up to 90% RH, non-condensing PHYSICAL Dimensions front panel 280 x 215mm; Emona SIGEx USER MANUAL © Emona Instruments...
Page 39: Ec Declaration Of Conformity
EC Declaration of Conformity Manufacturer: Emona Instruments Pty Ltd 78 Parramatta Road, Camperdown NSW AUSTRALIA Representative in EU for ETT-311: National Instruments Hungary Kft Hatar ut 1/A H-4031, Debrecen HUNGARY Object of Declaration: Emona SIGEx, model ETT-311 Signals & Systems and EM modulation laboratory teaching equipment...
Page 42 Emona SIGEx™ Signal Processing Board Trainer User Manual - Experiments in Modern Analog and Digital Signal Processing a& Systems. Emona Instruments Pty Ltd 78 Parramatta Road web: www.emona-tims.com Camperdown NSW 2050 telephone: +61-2-9519-3933 AUSTRALIA fax: +61-2-9550-1378 The "SIGEx" logo is a trademark of Emona TIMS PTY LTD...