Getting Started With The PropScope USB Oscilloscope 32220gettingstartedv10

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Getting Started

with the

USB Oscilloscope, Function Generator,

Logic Analyzer and Spectrum Analyzer

Copyright © Parallax Inc. PropScope USB Oscilloscope v1.0 12/3/2009 Page 1 of 6

Your PropScope includes

PropScope Specifications

•2 input channels

•25 Msps maximum sample rate

•20 Vpp maximum input range (-10 V to +10 V when DC-coupled)

•10-bit input resolution over either the entire 20 Vpp range, or selectable 10, 2,

and 1 Vpp ranges.

•1x/10x selectable probes for 200 Vpp maximum input range (-100 V to +100 V

when DC-coupled)

PropScope DAC card specifications

•8-bit 25 Msps DAC, up to 25Msps with -1.5 to 1.5 and 0 to 5 volt ranges

•External trigger input configurable from -10 to 10 volts

•Four-bit logic analyzer, up to 25 Msps

•Four-bit NTSC/PAL output

Note

The card must be plugged in before starting the PropScope software. When

using the DAC, logic analyzer, or NTSC/PAL outputs, channel 2 will be disabled.

Warning

Do not apply more than +200 or less than -200 VDC to the input of the

PropScope, otherwise permanent damage may occur.

Copyright © Parallax Inc PropScope USB Oscilloscope v1.0 12/3/2009 Page 2 of 6

Two 1x/10x BNC

probes

PropScope

PropScope DAC card

for DAC/LSA/Trigger

USB Cable

Step 1: Install Software

Download your PropScope software from: http://www.parallax.com/go/propscope and

follow the instructions to install the USB driver and PropScope software.

Step 2: Connect your PropScope

Copyright © Parallax Inc PropScope USB Oscilloscope v1.0 12/3/2009 Page 3 of 6

Connect the Probes

to your PropScope

Connect the USB cable

to the PropScope and to

your PC

Connect the PropScope

DAC card to use the

Function Generator,

External Trigger or LSA

Step 3: Measure

Start the PropScope software by clicking on PropScope shortcut on your desktop.

PropScope will start in the Oscilloscope view and show measurements taken by the two

probes- see the next pages for detail on the other views.

Copyright © Parallax Inc PropScope USB Oscilloscope v1.0 12/3/2009 Page 4 of 6

Control the function

generator

Click to Start and Stop

Measurements

Adjust the horizontal

timescale to suit the

speed of your signal

Tips:

-Select the right timescale

Digital oscilloscopes sample the input signal at configurable rates. (The PropScope

samples up to 25 Million times/second) Sampling a signal too slowly will yield artifacts-

so always look at a new signal with a faster timescale first.

-Use a trigger

Click the Trigger tab to configure the trigger to stabilize the signal. You can adjust the

horizontal slider on top of the graph to show data before or after the trigger fired

-Use AC/DC mode

If you are not interested in the DC offset of your signal, switch to AC coupling.

-Make sure the probe’s 1X/10X switch is correct

Your PropScope comes with two 1X/10X probes. Switch the probe to 10X and select 10X

in the “Tools/Probe” dialog of the PropScope software to measure larger signals.

-Get Help when you’re stuck

For more information about the PropScope software controls, choose “Help” from the

menu in the PropScope software.

Adjust the horizontal

trigger and slider to see

the signal before and

after the trigger

Switch between different views:

oscilloscope, logic analyzer,

analog, and DSO-LSA

Set coupling and

vertical coupling

resolution

Click in the left

margin to set

the trigger

mode and

level

Drag traces up

and down or

left and right

View automatic

measurements

Logic Analyzer

Use the Logic Analyzer with the IO Expander to measure multiple logic signals.

Analog View

Use the Analog View to view your signal in XY mode and with the Spectrum Analyzer.

Copyright © Parallax Inc PropScope USB Oscilloscope v1.0 12/3/2009 Page 5 of 6

In Bit mode, click

on a trace label to

select rising or

falling edge trigger

for that bit

In Pattern mode,

click on any

combination of

trace labels to

select between

rise, fall, high, or

low for each bit

Explore relationships

between your signals

with the x-y graph

Control the function

generator with these

controls

Explore the frequency component of your signal

with the spectrum analyzer. Adjust the timescale

to control the frequencies graphed.

Select between Bit

and Pattern trigger

modes.

Click to Start

and Stop

Measurements

Adjust the

horizontal

timescale to

suit the speed

of your signal

Click to Start and Stop

Measurements

DSO LSA View

Use the DSO LSA View to control both the oscilloscope and logic state analyzer on one

screen.

PropScope DAC Card Details

Copyright © Parallax Inc PropScope USB Oscilloscope v1.0 12/3/2009 Page 6 of 6

Adjust timescale

of both graphs

Set Vertical

resolution and

coupling

View

measurements

Logic Analyzer view of digital

signals

Oscilloscope view of analog

signals

RCA output

for TV

External trigger

input configurable

from –10 to +10V

Function generator

outputs configurable

waveforms between

-1.5 to 1.5V and 0 to

5V

Four-bit

logic input,

labeled 3

through 0

and ground