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Page 1 of 11LeCroy LC334A Series Digital Oscilloscope
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PRODUCTS
Oscilloscopes
Protocol Analyzers
Differential Amplifiers
Probes
Automotive/Vehicle Test
Mixed Signal Test Solutions
Modular Instruments
Scope Accessories
Hardware Options
Software Options
Discontinued Products
LC334A
LC574A
Datasheet
Leading Specifications
500 MHz and 1 GHz Bandwidth
2 GS/s and 4 GS/s Single- Shot Sample Rate
8 Million Points of Acquisition Memory
4 ms Maximum Sample Rate Window
96 MHz PowerPC Microprocessor
8 to 64 MB System RAM
9" Color Display with 8 Traces
Analog Persistence
Full Screen Grid
Digital oscilloscopes from LeCroy are designed to save engineers valuable time in troubleshooting
and problem-solving.
Each oscilloscope is an integrated and powerful system providing the capability to:
Capture the key events with high resolution for longer time intervals
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View data like never before, giving you more information more quickly, with a large,
color CRT and advanced display techniques
Analyze your signal to get answers quickly and more accurately with a powerful
processing system and math packages.
Eight trace display for a more complete picture.
9" Color Display
LeCroy provides a very large, sharp oscilloscope screen that is 50% larger
in total viewing area than a 7" screen.
Its powerful features include Analog Persistence, Color-Graded
Persistence, Full Screen mode, Opaque or Transparent display, color
association, and personal color schemes. These provide the user with
outstanding benefits that accelerate visual processing and effective
communication of on-screen information.
High-Speed Acquisition
The design and debug of fast digital systems and the need to capture fast
transient signals require high-speed signal capture. The LC574A fourchannel, 1 GS/s, 1 GHz bandwidth DSO operates at a 4 GS/s sample rate
for single-channel inputs. The high sample rate, bandwidth and the 1 GHz
trigger bandwidth provide a flexible solution for capturing and viewing
fast risetime signals.
Large Sample Rate Window
Having a high sample rate in a DSO is only the first step to preserving
data integrity. The time window over which this sample rate is available is
also of critical importance. Long acquisition memory maintains the
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oscilloscope's highest sample rate for large time windows allowing the
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user to sample long signals with high horizontal resolution.
With up to 8 million points of acquisition memory, the maximum sample
rate of the LC574AL of 4 GS/s (2 GS/s in LC334AL) is maintained for a
time window of 2 ms (4 ms in LC334AL). This sample rate window
enables the user to record long signals with high resolution.
Optimum Performance
SMARTMemory is a total memory management system that dynamically
allocates resources of microprocessor power, acquisition memory and
processing RAM. The intelligent management provided by SMARTMemory
guarantees optimal usage of oscilloscope resources.
The 96 MHz PowerPC microprocessor at the heart of these DSOs drives
the system to produce results fast, providing rapid waveform update and
super panel responsiveness.
Quick Diagnoses
Capturing and viewing waveforms are fundamental to an oscilloscope.
Productivity improvements are accessible by using built-in math functions
to assist troubleshooting and diagnoses of circuit problems.
Page 2 of 11LeCroy LC334A Series Digital Oscilloscope
The signal analysis capability of these DSOs is enhanced by advanced
waveform math, spectrum analysis, and waveform parameter analysis.
This analysis capability greatly increases the speed with which circuit
problems are clearly identified and solved.
Analog Persistence
At a push of the green button, the user can switch between an analog
style view and a digital view of signals on these oscilloscopes.
The depth of signal information can be explored along the third dimension
of the waveform display to give the user a complete picture of waveform
activity.
Unlike an analog oscilloscope, all signal data is captured and available in
memory for analysis and measurements. Analog Persistence gives the
user the best of both the analog and digital worlds of oscilloscopes.
Full Screen Grid
LeCroy DSOs not only have a very large 9" screen but also provide a
display mode with an extra-large grid, up to 150% larger than common
grid areas. In Full Screen mode, all of the screen area is used to display
signals. This provides a magnificent view of up to 8 waveforms: signal
details are seen more clearly and with greater ease.
8-Trace Display
An 8-trace display with any combination of math functions, zooms,
reference memories, or channels is a standard feature in the LC series.
Octal grid display is available in normal and Full Screen display modes,
with and without parameters displayed.
Easy Documentation
All waveform data and results of analysis can be quickly saved to floppy
disk, memory card, ATA flash card, or a removable hard disk. This
provides an efficient way to archive information and facilitates easy
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documentation of results.
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An internal graphics printer (standard in "L" models) outputs screen
dumps in seconds providing the user with an immediate and clear record
of signal activity.
Signal Capture
Acquisition System
LC334A Bandwidth (-3 dB): @ 50 ohm: DC to 500 MHz
LC574A Bandwidth (-3 dB): @ 50 ohm: DC to 1 GHz
Bandwidth (-3 dB): @ 1 Mohm: DC to 500 MHz typical at probe tip with
optional 1 GHz FET probe for LC334A and with PP005 standard with
LC374A and LC574A.
No. of Channels: 4
No. of Digitizers: 4
Max. Sample Rate Window:
Page 3 of 11LeCroy LC334A Series Digital Oscilloscope
4 ms @ 2 GS/s in single-shot mode; LC334AL.
2 ms @ 4 GS/s; LC574AL.
Sensitivity LC334A:
2 mV/div to 5 V/div, 50 ohm, fully variable.
2 mV/div to 5 V/div, 1 Mohm, fully variable.
Sensitivity LC574A:
2 mV/div to 1 V/div, 50 ohm, fully variable.
2 mV/div to 10 V/div, 1 Mohm, fully variable.
Scale factors: A wide choice of probe attenuation factors are selectable.
Offset Range LC334A:
2.00 - 9.99 mV/div: ±120 mV
10.0 - 199 mV/div: ±1.2 V
0.2 - 5.0 V/div: ±24 V
Offset Range LC574A:
2.00 - 4.99 mV/div: ±400 mV
5.00- 99 mV/div: ±1 V
0.1 - 1.0 V/div: ±10 V
1.0 - 10 V/div: ±100 V
(1 Mohm only)
DC Accuracy: Typical 1%
Vertical Resolution: 8 bits
Bandwidth Limiter LC334A: 30 MHz
Bandwidth Limiter LC574A: 25 MHz, 200 MHz
Input Coupling: AC, DC, GND
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Input Impedance: 10 Mohm//15 pF for LC334A (system capacitance
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using PP005), 10 Mohm//11 pF for LC374A/LC574A (system capacitance
using PP005) or 50 ohm ±1%.
Max Input:
50 ohm: ±5 V DC (500 mW) or 5 V RMS
1 Mohm on LC334A: 250 V
1 Mohm on LC574A: 400 V (DC + peak AC <=10 kHz)
SMARTMemory: This total memory management system dynamically
manages acquisition memory to guarantee that signals are always
sampled at the highest possible sample rate and that system RAM and
microprocessor resources are always optimally employed.
Acquisition Modes
Random Interleaved Sampling (RIS): For repetitive signals from 1
ns/div to 5 µs/div (2 µs/div for LC574A).
Single shot: For transient and repetitive signals from 10 ns/div (1 ns/div
for LC574A) with all channels active.
Page 4 of 11LeCroy LC334A Series Digital Oscilloscope
Peak detect: At 400 MS/s, peak detect can capture high-speed events
down to 1 ns, while simultaneously capturing normally sampled data.
Sequence: Stores multiple events - each of them time stamped - in
segmented acquisition memories.
Dead Time between segments: Typically <30 µs, max. 50 µs
Timebase System
Timebases: Main and up to 4 Zoom Traces
Time/Div Range: 1 ns/div to 1,000 s/div.
Clock Accuracy: <=10 ppm
Interpolator resolution: 10 ps
Roll Mode: Ranges 500 ms to 1,000 s/div. For >50 kpoints: 10 s to
1,000 s/div.
External Clock: <=100 MHz (20-100 MHz for LC574A and LC374A) on
EXT input with ECL, TTL or zero crossing levels. Optional 50 MHz to 500
MHz rear-panel fixed frequency clock input.
External Reference: Optional 10 MHz rear-panel input.
Additional Information
Interfacing
Remote Control: Possible by GPIB and RS-232-C for all front-panel
controls, as well as all internal functions.
RS-232-C Port: Asynchronous up to 115.2 Kb/s for computer/terminal
control or printer/plotter connection.
GPIB Port: Configurable as talker/listener for computer control and fast
data transfer, up to 300 kbytes/sec. Command Language complies with
requirements of IEEE-488.2.
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Centronics Port: Hardcopy parallel interface is standard.
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PC Card (PCMCIA I/II/III) Ports: For memory cards, ATA compatible
flash cards and removable hard disks - optional.
Floppy Disk: High-density 3.5" floppy disk drive (DOS format) is
standard.
VGA Compatible Display: 15-pin D-type VGA compatible connector for
external color display.
Hardcopy: Screen dumps are activated by a front-panel button or via
remote control. TIFF and BMP formats are available for importing to
desktop pub-lishing programs. The following printers and plotters can be
used to make hardcopies:
B/W: HP LaserJet, HP DeskJet 500, Epson FX.
Color: HP DeskJet 550C, Epson Stylus, Canon BJC. An optional, internal,
high- resolution graphics printer is also available for screen dumps; a
stripchart output format with 2 meters per division is also possible.
Output Formats: ASCII waveform out-put is available in seconds,
compatible with spreadsheets, MATLAB, MathCad. Binary output is also
available.
Page 5 of 11LeCroy LC334A Series Digital Oscilloscope
General
Auto-calibration ensures specified DC and timing accuracy.
Temperature: 5° to 40°C (41° to 104°F) rated 0° to 50°C (32° to 122°
F) operating.
Humidity: 80% for temperatures up to 31°C decreasing linearly to 50%
relative humidity at 40°C.
Altitude: Up to 2000m (operating), 40°C max.
Power: 90-132 V AC, 180-250 V AC, 45-66 Hz, 400 W.
Battery Backup: Front-panel settings maintained for two years.
Dimensions:
(HWD)10.4" x 15.65" x 17.85" (264 mm x 397 mm x 453 mm)
Weight: 20 kg (44 lbs) net, 28 kg (61.6 lbs) shipping.
Warranty: Three years.
CE Approval: EMC: Conforms to EN50081-1 and EN50082-1.
UL and cUL approved: UL standard: UL 3111-1; cUL Canadian Standard
CSA-C22.2 No. 1010. 1-92.
Safety: The oscilloscope has been designed to comply with EN61010-1
Installation Category (Over-voltage Category) II, Pollution Degree 2.
Signal Viewing
Type: Color 9" Raster Scan CRT, 0.26 mm dot pitch.
Resolution: 640 x 480 points.
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Display Area: 170 mm x 125 mm - 50% greater than that of a 7"
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display.
Controls: Rear-panel presets for position, brightness and contrast. Menu
controls for brightness and color selection.
Grid Styles: Single, Dual, Quad, Octal, XY, Single+XY, Dual+XY, and Full
Screen - an enlarged view of each grid style.
Graticules: Internally generated; separate intensity control for grids and
waveforms. Selectable blending of grid with displayed traces.
Waveform Style: Dot Join with option-al sample point highlight or Dots
only.
Persistence Modes: Color-graded per-sistence and Analog Persistence,
infinite or variable with decay over time. In color-graded persistence, a
color spectrum from red through violet is used to map signal intensity.
With Analog Persistence, the brightness level of a single color denotes
signal intensity. Each trace's persistence data is stored in 64 k levels.
Analog Persistence is only available in four channel mode on LC334A
models.
Page 6 of 11LeCroy LC334A Series Digital Oscilloscope
Trace Display: Opaque or transparent mode, with overlap management.
Number of Traces: 8 (any mix of channels, memories or Math
functions).
Real-time Clock: Date, hours, minutes, seconds.
External Monitor: Rear-panel 15-pin socket for VGA compatible monitor.
Vertical Zoom: Up to 5x vertical ex-pansion (50x with averaging, up to
40 µV/div sensitivity).
Horizontal Zoom:
LC334A: Waveforms can be expanded to give 2-2.5 points/division. This
allows zoom factors up to 100,000x for the 'M' models and up to
400,000x for the 'L' models when channels are combined.
LC574A: Waveforms can be expanded to give 0.4-0.5 points per division.
Zoom factors up to 2,000,000x with all channels combined on the
LC574AL.
Triggering System
Modes: Normal, Auto, Single, and Stop.
Sources: CH1, CH2, CH3, CH4, Line, EXT, EXT/10. Slope, Level and
Coupling are unique to each source.
Slope: Positive, Negative.
Coupling: AC, DC, HF, LFREJ, HFREJ
Pre-trigger recording: 0 to 100% of full scale (adjustable in 1%
increments).
Post-trigger delay: 0 to 10,000 divisions (adjustable in 0.1 div.
increments).
Holdoff by time: 10 ns to 20 s
Holdoff by events: 0 to 99,999,999
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Internal Trigger Range: ±5 div
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EXT Trigger Max Input LC334A:
10 Mohm//15 pF
(system capacitance using PP005):
50 V (DC + peak AC <=10kHz)
50 ohm ±1%: ±5 V DC (500 mW) or 5 V RMS.
EXT Trigger Max Input LC574A:
10 Mohm//11pF
(system capacitance using PP005):
400 V (DC + peak AC <=10 kHz)
50 ohm ±1%: ±5 V DC (500 mW) or 5 V RMS.
EXT Trigger Range: ±0.5 V (±5 V with Ext/10).
Trigger Timing: Trigger Date and Time are listed in the Memory Status
Menu.
Page 7 of 11LeCroy LC334A Series Digital Oscilloscope
Trigger Comparator: Optional ECL rear-panel output. Alternatively, the
calibrator output can provide a trigger output or a Pass/Fail test output.
SMART Trigger Types
Pattern: Trigger on the logic combination of 5 inputs - CH1, CH2, CH3,
CH4, and EXT Trigger, where each source can be defined as High, Low or
Don't Care. The Trigger can be defined as the beginning or end of the
specified pattern.
Signal or Pattern Width: Trigger on width between two limits selectable
from <2.5 ns to 20 s. Will typically trigger on glitches 1 ns wide.
Signal or Pattern Interval: Trigger on interval between two limits
selectable from 10 ns to 20 s.
Dropout: Trigger if the input signal drops out for longer than a time-out
from 25 ns to 20 s.
State/Edge Qualified: Trigger on any source only if a given state (or
transition) has occurred on another source. The delay between these
events can be defined as a number of events on the trigger channel or as
a time interval.
TV: Allows selection of both line (up to 1500) and field number (up to 8)
for PAL (SECAM), NTSC or nonstandard video.
Exclusion Trigger: Trigger on inter-mittent faults by specifying the
normal width or period of a signal. The oscillo-scope will trigger only on
aberrations which are shorter or longer than normal.
Autosetup
Pressing Autosetup sets timebase, trigger and sensitivity to display a wide
range of repetitive signals, (Frequency above 50 Hz; Duty Cycle greater
than 0.1%).
Autosetup Time: Approximately 2 seconds.
Vertical Find: Automatically sets sensitivity and offset for selected
channel.
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Probes
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One PP005 probe is supplied per channel. DC to 500 MHz typical (350
MHz typical for LC334A) at probe tip, 500 V max.
Probe calibration: Max 1 V into 1 Mohm, 500 mV into 50 ohm,
frequency and amplitude programmable, pulse or square wave selectable,
rise and falltime 1 ns typical. Alternatively, the calibrator output can
provide a trigger output or a Pass/Fail test output.
Maximum Sample Rate and Acquisition Memories
Page 8 of 11LeCroy LC334A Series Digital Oscilloscope
Channel Use LC334A LC574A
All
Peak Detect OFF
Paired Peak Detect
OFF
Paired + Adapter
Peak Detect OFF
All
Peak Detect ON
Maximum Sample
Rate
500 MS/s 1 GS/s 100k 500k 2 M All
1 GS/s 2 GS/s 250k 1 M 4 M Ch 2 & Ch 3
2 GS/s 4 GS/s 500k 2 M 8 M One
100 MS/s data +
400 MS/s peaks
Memory Per Channel
LC334A
LC574A
50k data
+
50k
Peaks
LC334AM
LC574AM
250k data
+
250k
peaks
LC334AL
LC574AL
1 M data
+
1 M
peaks
Active
Channels
All
High performance signal conditioning devices preserve signal content.
Cursor Measurements
Relative Time: A pair of arrow cursors measure time differences and
voltage differences relative to each other.
Relative Voltage: A pair of line cursors measure voltage differences.
Absolute Time: A cross-hair marker measures time relative to the
trigger and voltage with respect to ground.
Absolute Voltage: A reference bar measures voltage with respect to
ground.
Automated Measurements
A wide range of pulse parameter measurements are available. These are
categorized for ease of use. The categories include Pulse, Horizontal, and
Vertical parameters. Basic statistical measurements (average, highest,
lowest, and standard deviation), can be made on these parameter values
in order to understand their distribution. Pass/Fail Testing and Waveform
Limit testing using masks can be performed. Test conditions can be
expressed as either waveform parameter limits, waveform shape limits
(mask) or a combination of both. Any failure can cause preprogrammed
actions such as Hardcopy, Save, GPIB service request, logic pulse out,
audible beep, or any combination of the above.
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Number of segments available
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Page 9 of 11LeCroy LC334A Series Digital Oscilloscope
Model Segments
LC334A
LC334AM
LC334AL
LC574A 500
LC574AM 2,000
LC574AL 2,000
Signal Analysis
A comprehensive and easy-to-use set of diagnostic tools are available.
Calculations are performed rapidly, and results can be presented onscreen or stored to disk.
Rapid Processing System
Microprocessor: 96 MHz PowerPC 603e.
System RAM: 8 to 64 Mbytes.
Video Memory: 1 Mbyte.
Cache Memory: 32 kbyte.
Persistence Data Map Memory: 16 bits per displayed pixel (64 k
levels).
Waveform Processing
Up to four processing functions may be performed simultaneously.
Standard functions available are: Add, Subtract, Multiply, Divide, Negate,
Identity, Summation Averaging and Sine x/x. The source information for
a math function trace can be data from an acquisition channel or from
another math function trace. This allows display of traces which "daisy
chain" math functions.
Average: Up to 106 averages are possible.
Extrema: Roof, Floor, or Envelope values from 1 to 10
ERES: Six low-pass digital filters provide up to 11-bit vertical resolution.
Sampled data is always available, even when a trace is turned off.
FFT: Spectrum Analysis with five windowing functions and FFT averaging.
Statistical Diagnostics*: The Parameter Analysis package permits in-
depth diagnostics on waveform parameters. Live histogramming of any
waveform parameter measurement is possible and the histogram can be
autoscaled to display the center and width of the distribution.
6
sweeps.
Any of the above processes can be invoked without losing the data.
*Histogramming and Trending are part of the Parameter Analysis
Package.
Internal Memory
Waveform Memory: Up to four 16-bit Memories (M1, M2, M3, M4),
whose length corresponds to the length of the channel acquisition
memory.
Zoom & Math Memory: Up to four 16-bit Waveform Processing
Memories (A, B, C, D), whose length corresponds to the length of the
channel acquisition memory.
Setup Memory: Four non-volatile memories. The floppy disk or optional
memory cards, Flash card or removable hard disks can also be used for
high-capacity waveform and setup storage.
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Precision sampling devices maintain signal integrity in the digital
world .System Memory Configurations
Maximum Horizontal Zoom Factors
Page 10 of 11LeCroy LC334A Series Digital Oscilloscope
Model Zoom Factors
LC334
LC334AM
LC334AL
4,000x
LC574A 20,000x
LC574AM 100,000x
LC574AL 400,000x
Ordering Information
To request a Quote or Demo on any of the following
models, click here.
Digital Oscilloscopes: Product
Code
500 MHz, 500 MS/s, 100 kpts./ch, 4 channel Color DSO LC334A
500 MHz, 500 MS/s, 500 kpts./ch, 4 channel Color DSO LC334AM
500 MHz, 500 MS/s, 2 Mpts./ch, 4 channel Color DSO LC334AL
1 GHz, 1 GS/s, 100 kpts./ch, 4 channel Color DSO LC574A*
1 GHz, 1 GS/s, 500 kpts./ch, 4 channel Color DSO LC574AM*
1 GHz, 1 GS/s, 2 Mpts./ch, 4 channel Color DSO LC574AL*
Included with Standard Configuration:
10:1 10 Mohm Passive Probe (1 per channel) PP005
Operator's Manual LCXXX-OM
Remote Control Manual LCXXX-RCM
Hands On Guide LCXXX-HG
Advanced Waveform Math Package WP01
Spectrum Analysis Package WP02
Floppy Disk Drive FD01
Performance Certificate
Three-Year Warranty
Probes & Accessories:
1 GHz 10:1 FET Probe AP020
800 MHz 5:1 FET Probe AP021
2.5 GHz 0.6pF Active Probe AP022
1 GHz, 10:1, 500 ohm Passive Probe PP062
ProBus 75 ohm to 50 ohm Adapter PP090
Software Options:
Parameter Analysis Package (includes Histogramming and
Trending)
Disk Drive Measurements DDM
Supplementary Disk Drive Measurements PRML
Optical Recording Measurements ORM
WP03
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Hardware Options:
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Memory Card Reader and 512k SRAM Card MC01/04
PCMCIA Type III Slot for Hard Drives and ATA Flash Cards HD01
PCMCIA Hard Disk 170 Mbyte (requires HD01 option) HD02
4MB ATA Flash Card (requires HD01 option) 4MBFC
Internal Graphics Printer GP01**
500 MHz Ext Clock, 10 MHz Ref Input, Trigger Comparator
Output
CKTRIG
64 Mbyte System Memory 64MBSM**
Manuals:
Service Manual for LCXXXA LCXXX-SM
Warranty & Calibration:
US Military Standard LCXXX-
CCMIL
US NIST Standard LCXXX-
CCNIST
* Includes Internal Graphics Printer and Parameter
Analysis Package
** Included with LC574AL
Page 11 of 11LeCroy LC334A Series Digital Oscilloscope
Copyright © April 1997
LeCroy and Analog Persistence are registered trademarks of LeCroy Corporation. All rights
reserved. Informationin this publ ication supersedes all earlier versions. Specifications subject to
change without notice.
MathCad is a registered trademark of MATHSOFT Inc.
Centronics is a registered trade-mark of Data Computer Corp.
Epson is a registered trade-mark of Epson America Inc.
PowerPC is a registered trademark of IBM Microelectronics
MATLAB is a registered trade-mark of The MathWorks, Inc. LaserJet and DeskJet are registered
trademarks of Hewlett-Packard Company.
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