Atec DPO4104 User Manual
Digital Phosphor Oscilloscopes
DPO4000 Series
DPO4000 Series Digital Phosphor Oscilloscopes:
Debug Smarter, Not Harder!
Wave Inspector Controls
Imagine trying to efficiently use the
Internet if search engines such as Google
and Yahoo didn’t exist, Web browser
features such as Favorites and Links
didn’t exist or Internet Service Providers
like AOL or MSN weren’t around. Now
you know how most modern oscilloscope
users feel when trying to actually use the
long record length in their digital oscilloscope. Record length, one of the key
specifications of an oscilloscope, is the
number of samples it can digitize and
store in a single acquisition. The longer
the record length, the longer the time
window you can capture with high resolution (high sample rate). The first digital
oscilloscopes could capture and store
only 500 points which made it very
difficult to acquire all relevant information
around the event being investigated. Over
the years, oscilloscope vendors have
provided longer and longer record lengths
to meet market demands for long capture
windows with high resolution to the point
that most mid-range oscilloscopes either
come standard with, or can be optionally
upgraded to, multi-mega-point record
lengths. These mega-point record lengths
often represent thousands of screens
worth of signal activity. While standard
record lengths have increased greatly
over the years and can now satisfy the
vast majority of applications in the marketplace, tools for effectively and efficiently
viewing, navigating and analyzing long
record length acquisitions have been
sorely neglected until now. The DPO4000
Features & Benefits
1 GHz, 500, 350 MHz
Bandwidth Models
2 and 4 Channel Models
Sample Rates Up to 5 GS/s
on All Channels
10 Megasample Record Length
on All Channels
Wave Inspector Controls Provide
Unprecedented Efficiency in
Waveform Analysis
2
I
C, SPI, CAN Serial Triggering
and Analysis
10.4 in. (264 mm) XGA Color Display
Small Footprint and Lightweight –
Only 5.4 in. (137 mm) Deep and
11 lbs. (5 kg)
USB and CompactFlash on Front
Panel for Quick and Easy Storage
Built-in Ethernet Port
Plug ‘n’ Play Connectivity and
Analysis Software Solutions
USB 2.0 Device Port for Direct
PC Control of Oscilloscope
Using USBTMC
Suite of Advanced Triggers
e*Scope
and Control
Interoperability with Tektronix
Logic Analyzers
TekVPI
Active, Differential and Current
Probes for Automatic Scaling
and Units
®
Remote Viewing
™
Probe Interface Supports
Applications
Embedded Design and Debug
Investigation of Transient
Phenomena
Power Measurements
Video Design and Debug
Spectral Analysis
Automotive Electronics Design
and Debug
Manufacturing Test and
Quality Control
Electro-mechanical Design
and Analysis
Bio-medical Product Development
Industrial Control
Digital Phosphor Oscilloscopes
DPO4000 Series
Wave Inspector Controls provide unprecedented efficiency in viewing,navigating
and analyzing waveform data.
Series redefines expectations for working
with long record lengths with the following
innovative new Wave Inspector controls
(above and center):
Zoom/Pan – A dedicated, two-tier frontpanel knob provides intuitive control of
both zooming and panning. The inner
knob adjusts the zoom factor (or zoom
scale); turning it clockwise activates zoom
and goes to progressively higher zoom
factors, while turning it counter-clockwise
results in lower zoom factors and eventually
turning zoom off. The outer knob pans
the zoom box across the waveform to
quickly get to the portion of the waveform
you are interested in. The outer knob also
utilizes force-feedback to determine how
fast to pan on the waveform. The farther
you turn the outer knob, the faster the
zoom box moves. Pan direction is changed
by simply turning the knob the other way.
No longer do you need to navigate through
multiple menus to adjust your zoom view.
Setup and Hold search highlighting numerous setup and hold violations in a single acquisition.
Play/Pause – A dedicated play/pause
button on the front panel scrolls the
waveform across the display automatically
while you look for anomalies or an event
of interest. Playback speed and direction
are controlled using the intuitive pan
knob. Once again, turning the knob
further makes the waveform scroll faster
and changing direction is as simple as
turning the knob the other way.
User Marks – See something interesting
on your waveform? Press the Set Mark
button on the front panel to leave one
or more “bookmarks” on the waveform.
Navigating between marks is as simple as
pressing the Previous and Next buttons
on the front panel.
Search Marks – Don’t want to take the
time to inspect the entire acquisition to
find the event you’re looking for? The
DPO4000 Series features a robust waveform search feature that allows you to
search through your long acquisition based
on user-defined criteria. All occurrences
of the event are highlighted with search
marks and are easily navigated to, using
the front panel Previous and Next buttons.
Search types include edge, pulse width,
runt, logic, setup and hold, rise/fall time
2
and I
C, SPI and CAN packet content.
Oscilloscope • www.tektronix.com/oscilloscopes
2
Serial Triggering and Analysis
One of the most common applications
requiring long record length is serial data
analysis in embedded system design.
Embedded systems are literally everywhere. They can contain many different
types of devices including microprocessors,
microcontrollers, DSPs, RAM, EPROMs,
FPGAs, A/Ds, D/As and I/O. These various
devices have traditionally communicated
with each other and the outside world
using wide parallel buses. Today, however,
more and more embedded systems are
replacing these wide parallel buses with
serial buses due to less board space required, fewer pins, lower power, embedded
clocks, differential signaling for better
noise immunity, and most importantly,
lower cost. In addition, there’s a large
supply of off-the-shelf building block
components from reputable manufacturers,
enabling rapid design development. While
serial buses have a large number of benefits, they also present significant challenges
that their predecessors (parallel buses) did
not face. They make debugging bus and
system problems more difficult, it’s harder
to isolate events of interest and it’s more
difficult to interpret what is displayed on
the oscilloscope screen. The DPO4000
Series addresses these problems and
represents the ultimate tool for engineers
working with low-speed serial buses such
2
C, SPI and CAN.
as I
Bus Display – Provides a higher level
combined view of the individual signals
(clock, data, chip enable, etc.) that make up
Digital Phosphor Oscilloscopes
DPO4000 Series
Triggering on specific data packet going across an I2C bus.Yellow waveform is data,blue waveform
is clock.Bus wa veform provides decoded packet content including Start, Address, Read/Write, Data,
Missing Ack and Stop.
your bus, making it easy to identify where
packets begin and end and identifying
sub-packet components such as address,
data, identifier, CRC, etc.
Serial Triggering – Trigger on packet
content such as start of packet, specific
addresses, specific data content, unique
identifiers, etc., on popular low-speed
serial interfaces such as I
2
C, SPI and CAN.
Bus Decoding – Tired of having to visually
inspect the waveform to count clocks,
determine if each bit is a 1 or a 0, combine
bits into bytes and determine the hex
value? Let the oscilloscope do it for you!
Once you’ve set up a bus, the oscilloscope
will decode each packet on the bus, and
display the value in either hex or binary in
the bus waveform.
Packet Decode Table – In addition to
seeing decoded packet data on the bus
waveform itself, you can view all captured
packets in a tabular view much like you
would see on a logic analyzer. Packets
are listed consecutively with columns for
each component (Address, Data, etc.).
Oscilloscope • www.tektronix.com/oscilloscopes
3
Digital Phosphor Oscilloscopes
DPO4000 Series
Search – Serial triggering is very useful for
isolating the event of interest, but once
you’ve captured it and need to analyze
the surrounding data, what do you do?
In the past, users had to manually scroll
through the waveform counting and
converting bits and looking for what
caused the event. With the DPO4000
Series, you can have the oscilloscope
search through the acquired data for
user-defined criteria including serial
packet content. Each occurrence is highlighted by a search mark. Rapid navigation
between marks is as simple as pressing the
Prev and Next buttons on the front panel.
The Performance and Feature Set
You Expect
The DPO4000 Series digital phosphor
oscilloscopes (DPO) deliver the performance
you need to visualize even your most
demanding signals. Bandwidths range
from 350 MHz to 1 GHz, and with all
models offering a minimum of 5x oversampling on all channels and sin(x)/x
interpolation standard, you can be confident
that even the fastest transient events will
be captured and displayed accurately.
The standard 10 M record length on all
channels enables you to capture long
windows of signal activity while maintaining
fine timing resolution.
The DPO4000 Series offers a variety of
analytical solutions including cursors, 25
automatic measurements, statistics and
waveform math. Despite a tiny footprint
(only 5.4" deep) and lightweight (11 lbs.),
the DPO4000 Series offers exceptional
performance, a large 10.4" XGA display
and knob per channel vertical controls.
The new TekVPI
the standard for ease of use in probing.
™
probe interface sets
Packet decode table showing decoded Identifier, DLC, Da ta and CRC for ever y CAN packet in a
long acquisition.
TekVPI probes feature status indicators
and controls, as well as a probe menu
button right on the comp box itself. This
button brings up a probe menu on the
oscilloscope display with all relevant
settings and controls for the probe. The
TekVPI interface utilizes a new probe
power management architecture enabling
direct attachment of current probes
without requiring a separate, bulky power
supply. Finally, TekVPI probes can be
controlled remotely via USB, GPIB or
Fast waveform capture rate maximizes the
probability of capturing elusive glitches and
other infrequent events.
Ethernet, enabling more versatile
solutions in ATE environments.
The DPO4000 Series delivers an
unprecedented new level of USB plug
‘n’ play operation and PC connectivity.
Acquiring data and measurements from
the instrument is as simple as connecting
a USB cable from the oscilloscope to the
4
Oscilloscope • www.tektronix.com/oscilloscopes
Loading...