Virtins technology Vt dso-2820e User manual

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

VT DSO-2820E Manual

This product is designed to be used by those who have some basic electronics and electrical

knowledge. It is absolutely dangerous to connect an unknown external voltage to the VT

DSO unit. Be sure that the voltage to be measured is less than the maximum allowed input

voltage.

Note: VIRTINS TECHNOLOGY reserves the right to make modifications to this manual at any time without

notice. This manual may contain typographical errors.

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

TABLE OF CONTENTS

1 INSTALLATION AND QUICK START GUIDE..........................................................................................3

1.1 PACKAGE CONTENTS....................................................................................................................................3

1.2 MULTI-INSTRUMENT SOFTWARE INSTALLATION..........................................................................................4

1.3 HARDWARE DRIVER INSTALLATION .............................................................................................................4

1.3.1 Installation Procedure .........................................................................................................................4

1.3.2 Installation Verification.....................................................................................................................12

1.4 START MULTI-INSTRUMENT SOFTWARE.....................................................................................................13

1.5 ZEROING.....................................................................................................................................................13

1.6 PROBE CALIBRATION..................................................................................................................................14

1.7 HARD RESET...............................................................................................................................................15

1.8 FEATURE HIGHLIGHTS................................................................................................................................15

1.8.1 Hardware DSP based Bit Resolution Enhancement for Oscilloscope...............................................15

1.8.2 Oscilloscope Normal Frame Mode, Record Mode and Roll Mode....................................................17

1.8.3 Oscilloscope Digital Trigger and Trigger Frequency Rejection........................................................19

1.8.4 Oscilloscope Persistence Mode..........................................................................................................20

1.8.5 External Trigger Input Channel as a Digital Input Channel.............................................................20

1.8.6 Anti-aliasing filter for Spectrum Analyzer.........................................................................................20

1.8.7 Signal Generator DDS and Streaming Modes...................................................................................20

1.8.8 Signal Generator DDS Interpolation.................................................................................................21

1.8.9 Simultaneous Data Acquisition and Data Output..............................................................................21

1.8.10 Calibration and Re-Calibration.......................................................................................................21

1.8.11 Upgradable software, firmware, and hardware based DSP algorithm ...........................................23

1.9 NON-ROUTINE APPLICATIONS.....................................................................................................................23

1.9.1 Frequency Response Measurement....................................................................................................23

1.9.2 Distortion, Noise Level, and Crosstalk Measurements......................................................................26

1.9.3 Measurement of Derived Quantities ..................................................................................................26

1.9.4 Some Pre-configured Measurement Settings .....................................................................................26

2 SPECIFICATIONS.........................................................................................................................................30

2.1 VT DSO-2820E HARDWARE SPECIFICATIONS ...........................................................................................30

2.2 P2100 OSCILLOSCOPE PROBE HARDWARE SPECIFICATIONS.......................................................................35

2.3 MULTI-INSTRUMENT SOFTWARE SPECIFICATIONS......................................................................................35

2.4 SOFTWARE DEVELOPMENT INTERFACE SPECIFICATIONS............................................................................41

3 MULTI-INSTRUMENT SOFTWARE LICENSE INFORMATION.........................................................43

3.1 LICENSE TYPES...........................................................................................................................................43

3.2 LICENSE UPGRADE FROM ONE LEVEL TO ANOTHER ....................................................................................43

3.3 SOFTWARE UPGRADE FOR THE SAME LEVEL ...............................................................................................43

4 EXTENDED USE OF MULTI-INSTRUMENT SOFTWARE...................................................................44

5 MEASUREMENT EXAMPLES....................................................................................................................45

6 SAFETY INSTRUCTIONS............................................................................................................................47

7 WARRANTY...................................................................................................................................................47

8 DISCLAIMER.................................................................................................................................................47

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

1 Installation and Quick Start Guide

This is one of the second-generation USB DSOs designed and developed by Virtins

Technology. This generation of USB DSOs features Virtins Technology’s unique hardware-

based DSP algorithm which enhances the performance and functionality dramatically without

adding extra hardware cost. When used in conjunction with Multi-Instrument®software, the

USB DSO converts any desktop, laptop, or tablet PC into a powerful oscilloscope, spectrum

analyzer, multimeter, data logger, signal generator and so forth, all of which work

simultaneously.

1.1 Package Contents

A standard VT DSO-2820E Package contains the following items:

1) VT DSO unit with a hardware bundled Multi-Instrument Standard software license

2) 2 ×100 MHz Oscilloscope Probe P2100 (Old Tag: P6100) with two switchable positions:

×1, ×10

3) Signal Generator Test Lead (1 m)

4) USB cable (1.5 m)

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

5) CD (contains the copy-protected Multi-Instrument software and VT DSO driver)

1.2 Multi-Instrument Software Installation

Insert the installation CD into your computer’s CD-ROM drive and follow the instruction on

the screen to install the Multi-Instrument software.

1.3 Hardware Driver Installation

1.3.1 Installation Procedure

The USB cable has one USB A-type connector at one end and one USB B-Type connector at

the other end. The A-type connector should be connected to a USB port of your computer

while the B-type connector should be connected to the DSO.

Starting from Multi-Instrument 3.6, the VT DSO hardware driver will be installed

automatically during software installation, even without the connection of the DSO.

Therefore, the following driver installation procedures are more for manual installation and

troubleshooting purpose.

For Windows XP (and similarly Windows Vista):

1) Wait for the “Found New Hardware Wizard” dialog to pop up. And then select “No, not

this time” and click “Next”.

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

2) Select “Install from a list or specific location (Advanced)” and click “Next”.

3) Choose “Search for the best driver in these locations” and “Browse…”, and then locate

the driver. The driver can be found at Multi-Instrument’s installation

directory\Drivers\VTUSB3\32bit or 64bit. Choose 32-bit or 64-driver according to your

Windows version. After that, press “Next”.

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

4) The following dialog box will pop up. Click “Continue Anyway”.

5) Click “Finish”.

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

6) Select “No, not this time” and click “Next”.

7) Select “Install from a list or specific location (Advanced)” and click “Next”.

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

8) Choose “Search for the best driver in these locations” and “Browse…”, and then locate

the driver. The driver can be found at Multi-Instrument’s installation

directory\Drivers\VTUSB3\32bit or 64bit. Choose 32-bit or 64-driver according to your

Windows version. After that, press “Next”.

9) The following dialog box will pop up. Click “Continue Anyway”.

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

10)Click “Finish”.

For Windows 8 (and similarly Windows 7) :

1) If there is an available internet connection, Windows 8 will silently connect to the

Windows Update website and search for the driver. The following dialog box will pop up.

Click “Close” or let it close automatically after failing to find the driver.

VT DSO-2820E Manual Rev. 1.2

Virtins Technology

2) The DSO driver has to be installed manually via Device Manager under Windows

Control Panel. The Device Manager can be accessed from Windows 8 Metro Start Screen

via [Charm Bar]>[Settings]>[Control Panel]>[Hardware and Sound]>[Device Manager].

In the Device Manager window, there will be an Unknown device under Other Device

with a yellow warning symbol to indicate that the driver for the device has not been

installed. Right click on the Unknown device and choose “Update Driver Software…”

on the pop-up menu.

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