Aim-TTi TGP3151, TGP3121, TGP3152, TGP3122 QuickStart Guide

TGP3100 Seri es

Pulse and Universal Generators

QUICK START GUIDE

1 Table of Contents

1 Table of Contents 1 2 Introduction 2

2.1 The TGP3100 Series of Pulse and Universal Generators ....................................................... 2

2.2 About this Guide ..................................................................................................................... 2

3 Safety 3 4 Operational Principles 4

4.1 Front Panel Layout.................................................................................................................. 4

4.2 Rear Panel Layout .................................................................................................................. 5

4.3 Screen Layout ......................................................................................................................... 6

5 Getting Started 7

5.1 Initial Conditions ..................................................................................................................... 7

6 Basic Set-up Examples 8

6.1 Setting-up a Square Wave Clock Signal ................................................................................. 8

6.2 Setting-up a Pulse Waveform ............................................................................................... 11

6.3 Setting-up a Sine Wave Signal ............................................................................................. 15

7 Further Set-up Examples 17

7.1 Setting-up more Output O ptions ........................................................................................... 17

7.2 Setting-up a simple Bit Pattern.............................................................................................. 20

7.3 Setting-up an AM modulated Pulse Waveform ...................................................................... 22

8 Exploring the Generator Capabilities 25

8.1

8.2 PRBS Pattern ....................................................................................................................... 26

8.3 Frequency Modulation of a Pulse Waveform......................................................................... 27

8.4 Pulse Width Modulated Waveform (PWM) ............................................................................ 28

8.5 Pulse Delay Modulated Waveform (PDM) ............................................................................. 29

8.6 Frequency Sweep of a Sine Wave ........................................................................................ 30

8.7 Generating a Triggered Burst ................................................................................................ 31

8.8 Reconstructing an External Pulse Waveform ........................................................................ 32

8.9 Coupling the Frequency of Both Channels (T G P31x2 only) .................................................. 33

8.10 Summing Both Channels Together (TGP31x2 only) .............................................................. 34

9 Maintenance 35

Double Pulse Operation ........................................................................................................ 25

The full Specification for the instrument can be found in the separate Instruction Manual.

Note: The latest revisions of this manual, device drivers and software tools can be

downloaded from: http://www.aimtti.com/support or http://www.aimtti.us/support

This manual is 48591-1340 Issue 1

(USA).

2 Introduction

2.1 The TGP3100 Series of Pulse and Universal Generators

2.1.1 General Description

The TGP3100 Series are true pulse gener ators using all digital techniques. They can replicate the capabilities of traditional pulse generators whilst adding many additional facilities such as pulse modulations.

As well as operating as pulse generators, the instr um ents can ac t as high performance noise generators and as function/ ar bit r ary generators - making them truly universal waveform generators.

Single and dual channel models are available with a maximum frequency of either 50MHz or 25MHz

2.1.2 Important Features

Pulse waveforms from 1mHz to 50MHz [25MHz], minimum rise time 5ns [8ns] Pulse, double pulse, pulse pattern and PRBS waveforms Pulse period, width, and delay resolutions of 100ps or 11 digits Independently variable rise and fall times from 5ns [8ns ] t o 800 seconds Low jitter asynchronous operation, externally triggered pulses or pulse r ec onstruction High drive capability output can provide 20V pk-pk into 50Ω (unmatched) Wide rang e of pulse modulations including AM.FM, PM, FSK, BPSK, SUM, PWM, PDM

using internal or external modulation sources. Triggered (burst count) or g at ed oper ation using internal or external trigger sources Full Noise generator to 25MHz [12.5MHz] with selectable crest factor and user defined distr ibut ion Full Arbitrary/Function generator with 16 waveform types Sine waves up to 50MHz [25MHz] Arbitrary waveforms at 800MS/s sampling rate and 16-bit vertical r esolut ion Extensive internal/external modulation of all waveform types Linear and logarithmic sweeps of all waveform types Front panel mounted USB Flash drive interface GPIB, USB and LXI compliant LAN interfaces

2.2 About this Guide

This Quick Start guide is for bench-top use of t he TGP3100 Series com prising the TGP3151 and TGP3121 single channel generators and t he TGP3152 and TGP3122 dual channel generat or s .

A full Instruction Manual (English only) is also provided that includes comprehensive explanations of all functions and additional information on remote control, calibration, and the detailed technical specifications.

incorrect operation may damage the instr um ent.

3 Safety

This generator is a Safet y Class I instr um ent according to IEC classification and has been desig ned to meet the requirements of EN61010−1 (Safety Requirements for Elec t r ical Eq uipm ent for Measurement, Control and Laboratory Use). It is an I nstallation Category II instrument intended f or operation from a normal single phase supply.

This instrument has been tested in accordanc e with EN61010−1 and has been supplied in a safe condition. This instruction manual contains some information and warnings which have to be followed by the user to ensure safe operation and to r etain the inst r um ent in a safe condition.

This instrument has been designed f or indoor use in a Pollution Deg r ee 2 environment in t he temperature range 5°C to 40°C, 20% − 80% RH (non−condensing). It may occasionally be subjected to temperatures between +5° and −10°C without degradation of its safet y. Do not operate while condensation is present.

Use of this instrument in a manner not s pecified by these instructions may impair the safety protection provided. Do not operate the instrum ent outside its rat ed supply voltages or environmental range.

WARNING! THIS INSTRUMENT MUST BE EARTHED

Any interruption of the mains earth conduct or inside or outside t he inst r um ent will make the instrument dangerous. Int entional interruption is prohibited. The protective action must not be negated by the use of an extension cord without a protective conductor.

When the instrument is connected to its supply, terminals may be live and opening the covers or removal of parts (except those to which access can be gained by hand) is likely to expose live parts. The apparatus shall be disconnected from all voltage sources before it is opened for any adjustment, replacement, m aint enance or repair.

Any adjustment, maintenance and repair of the opened instrument under voltage shall be avoided as far as possible and, if inevitable, shall be carried out only by a skilled person who is aware of the hazard involved.

If the instrument is clearly def ec t ive, has been subject to mechanical damage, excessive moisture or chemical corrosion the safety protec t ion m ay be impaired and the apparatus should be withdrawn from use and returned for checking and repair.

Make sure that only fuses with the required rated c ur r ent and of the specified type are used for replacement. The use of makeshift fuses and the short−circuiting of fuse holders is prohibited.

This instrument uses a Lithium button c ell for non−volatile memory battery back−up; typical life is 5 years. In the event of replacement becom ing nec essary, r eplace only with a cell of the cor r ec t t ype, i.e. 3V Li/Mn0 accordance with local regulations; do not cut open, incinerate, expose to t emperatures above 60°C or attempt to recharg e.

Do not wet the instrument when cleaning it and in particular use only a soft dry cloth to clean the LCD window. The f ollowing symbols are used on the inst r ument and in this manual:−

20mm button cell type 2032. Exhausted cells must be disposed of car efully in

Caution −refer to t he acc om panying documentation,

terminal connected to chassis ground.

mains supply OFF. mains supply ON.

alternating current.

Ref.

Short Description

Function

the means of disconnection is readily accessible.

Opens Help menu (single channel instruments only).

ARB/Function.)

Menus

and Burst

utilities, and trigger conditions.

Wheel

Used to select items within some menus.

Main output sockets (dual channel instruments only)

4.1 Front Panel La yout

4 Operational Principles

Power Switch

Output Menu(s) Select Channel Select

Help Menu Select Waveform Menus

Waveform Select

Soft-keys Performs the func t ion shown on the LCD soft-key label above. Waveform Modification

Other Menus

Numeric Keypad Used to enter numeric parameter values directly.

Switches instrument on or off. Safet y Not e: To fully disconnect from the AC supply, unplug the m ains cor d from the back of t he instrument or switch off at the AC supply outlet; make sure that

Opens Output menu(s) to set output parameters Selects the desired channel for parameter editing ( dual

channel instruments only). Selects Channel Linking menu (dual channel instruments only).

Opens Waveform menus to set waveform parameters. Selects the main waveform type (carrier waveform) as active.

(Pulse, Square, Double Pulse, Pattern/PRBS, Noise,

Opens menus for setting parameters for Modulation, Sweep

Selects menus for internal and external file st or age, instrument

Cursor Keys and Spin

Main and/or Sync Sockets

USB Flash Drive USB Host connector for USB Flash drive storage.

Used to change numeric parameter values digit by digit.

Main output and Sync output sockets (single channel instruments only).

Modulation Input

External input for modulation of main waveforms .

10MHz reference clock.

generators.

instruments only).

4.1.1 Front Panel Layout - Single Channel Models

On single channel models (TGP31x1) the output terminal area differs in having only one Output key and Output soc ket.

The Sync output socket is mounted on the front panel instead of the rear panel.

A Help key is provided that directly accesses the help screens. On dual channel models Help is accessed from the Utility menu.

4.2 Rear Panel Layout

Reference In/Out

Trigger Input

Sync Outputs

Input for external10MHz reference clock . Output for internal

External input for trigger ing of main waveforms. Also used with Reference In/Out to synchronise two

Sync signal outputs for both channels (dual channel

Ref.

Short Description

Function

only).

Pattern/PRBS, Noise, ARB/Function.).

Load Impedance

Shows load impedance for which output level is displayed.

External Clock Indicator

Shows status of external clock (if applied)

Parameters Box

Shows main parameters for waveform.

Menu Description

Shows the currently selected editing menu.

Edit Box

Shows the current parameter that can be edited

Soft-key Labels

Shows the current functions for t he s ix keys below.

4.3 Screen Layout

Channel Indicator

Main Waveform type

Output State Shows main output On or Off

LAN Status Indicator Shows status of LAN (Ethernet) connection.

Graph Box Shows a graphical representation of the selected waveform.

Shows currently select channel (dual channel instruments

Shows current carrier waveform (Pulse, Square, Double Pulse,

5 Getting Started

In order to familiarise the user with some of the basic functionalities of the instrument, a number of set-up examples are shown in this guide.

It is recommended that all users should carr y out t he first three examples:

• Setting up a square wave clock signal

• Setting up a pulse signal

• Setting up a sine wave signal

This will have introduced some of the basic operating principles. These can be expanded in the next three examples:

• Setting-up more Output O ptions

• Setting-up a simple Bit Pattern

• Setting-up an AM modulated Pulse Waveform

A number of further set-up examples are provided that assume some familiarity with the instrument:

• Double Pulse Operation

• PRBS Pattern

• Frequency Modulation of a Pulse Waveform

• Pulse Width Modulated Waveform ( PWM)

• Pulse Delay Modulated Waveform (PDM)

• Frequency Sweep of a Sine Wave

• Generating a Triggered Burst

• Reconstructing an External Pulse Waveform

• Coupling the Frequency of Both Channels (TG P31x2 models only)

• Summing Both Channels Together (TGP31x2 models only)

For more detailed information on all functionality - see the full Instruction Manual.

5.1 Initial Condi tions

Before setting up the instr um ent for any of the examples, it should be returned to default conditions. To do this f ollow these steps:

Press the hard key marked Utility Press the soft-key labelled System Press the soft-key labelled Default (display will show Restore Factory Default?) Press the soft-key labelled Yes

This sets the main waveform to Pulse (10kHz, 50% duty cycle, 1V pk -pk) and cancels any modulations, sweep, or burst trigg ering or gating.

NOTE:

The instrument can be set to remember its latest settings on power-off and r estore them at poweron. This is set from the Utility menu and the PwrOn soft-key. This setting will be lost when the instrument is restored to default conditions as described above.

6 Basic Set-up Examples

6.1 Setting-up a Square Wave Clock Signal

Requirement

Output a continuous square wave clock signal with 20MHz frequency, 50% duty cycle and a high level of 3.3V and a low level of 0.0 volts.

Starting Conditions

Before starting, reset t he inst rument to defaults as described in section 5.1 Initial Conditions

Open Waveform Menu - Square

• Press the hard key marked Square, followed by the soft-key labelled Apply.

Note that the new waveform t y pe does not bec om e active until the Apply key is pressed.

Set the Frequency

• Press the soft-key labelled Freq - the current frequency appears in the edit box.

Note that pressing this soft-key repeatedly changes its funct ion bet w een Frequency and Period.

• Use the numeric keypad to enter a new frequency. Press the numbers 2 0.

Note that, as soon as a number is entered, t he soft-keys change to show units of frequency.

• Press the soft-key labelled MHz to confirm a frequency of 20MHz.

Note that the graph box changes to show t he r ise t im e on t he edges which is now significant.

Confirm the Duty Cycle

• Press the soft-key labelled Duty - the curr ent duty cycle appears in the edit box.

Note that the duty cycle is already set at 50% , but c ould be changed her e if r equired.

Open the Output Menu

• Press the hard key marked Output (or Output1 on dual channel instruments)

- the current pk-pk amplitude appears in the edit box.

Set the High and Low Levels

• Press the soft-key labelled Ampl - the k ey label changes to HiLvl and the current high level voltage appears in the edit box

Note that successive presses of the Ampl soft-key changes the Ampl and Offset key labels to HiLvl (high level) and LoLvl (low level) and vice versa.

• Press the soft-key labelled HiLvl - the cur r ent high level voltage appears in the edit box.

• Use the numeric keypad to enter a new level. Press the numbers 3 . 3 .

Note that, as soon as a number is entered, t he soft-keys change t o s how units of voltage.

• Press the soft-key labelled V to confirm a high level of 3.3 volts.

• Press the soft-key labelled LoLvl - the c ur r ent low level voltage appears in the edit box.

• Use the numeric keypad to enter a new level. Press 0 .

• Press the soft-key labelled V to confirm a low level of 0.0 volts.

Turn t he O ut put On

• Press the soft-key labelled On/Off to set the main output to On.

Note that the Output key illuminates in green t o indicat e t he on s tate.

To make f urther changes to Frequency or Duty Cycle

• Press the hard key marked Square.

This closes the output menu and opens the wavefor m m enu.

Making live changes to any numeric parameter (e.g. Frequency)

Numeric parameters can be changed by using the cursor keys and spin w heel as an alt er native to the numeric keypad.

• Press the hard key marked Square.

• Press the soft-key labelled Freq – t he cur rent frequency value of 20.0MHz is displayed

• Press the Cursor hard keys to move the edit highlig ht to the second digit.

• Use the spin wheel to change the value – the frequency is changed immediately.

NOTE:

Soft-key labels that include a downward arrow perform mor e t han one a function when pressed. This may be a change in parameter type or parameter option.

6.2 Setting-up a Pul se Waveform

Requirement

Output a continuous pulse signal with 100ns period, 30ns pulse width, zero delay, 10ns edge times and a high level of 2.7V and a low level of -0.6 volts.

Starting Conditions

Before starting, reset t he inst rument to defaults as described in section 5.1 Initial Conditions

Open Waveform Menu - Pulse

Note that the Pulse waveform menu w ill be already select ed as t he def ault.

Set the Period

• Press the soft-key labelled Freq so t hat it changes to Period - the current period appears in the edit box.