LeCroy LT224 / LT322 Technical Specifications
Acquisition System
LT322: 500 MHz @ 50 Ohm and at probe tip with PP006; select bandwidth limit (25 or 200 MHz)
independently by channel.
LT224: 200 MHz @ 50 Ohm and at probe tip with PP006; select bandwidth limit (25 MHz) independently by channel.
INPUT IMPEDANCE: 50 Ohm ±1.0%; 1 MOhm // 12 pF typical (using PP006 probe)
Input Coupling:
1 MOhm: AC, DC, GND;
50 Ohm: DC, GND
Max Input:
50 Ohm: 5 Vrms;
1 MOhm: 400 Vmax (peak AC <-5kHz + DC)
Single Shot Sampling Rate per Channel:
LT224/LT322: 200 MS/s max
Repetitive (RIS) Sampling Rate:
LT224/LT322: 10 GS/s max
Acquisition Memory:
LT224/LT322: 100 kpts/Ch
Sequence Acquisition Mode
LT224/LT322: 2 - 400 Segments
Vertical Resolution: 8 bits
Sensitivity: 2 mV – 10 V/div fully variable
DC Gain Accuracy: ±(1.5% +0.5% of full scale)
Offset Range: 2 mV–50 mV/div: ±1 V100 mV–500 mV/div: ±10 V1 V–10 V/div: ±100 V
Offset Accuracy: ±(1.5% + 0.5% of full scale + 1.0 mV)
Timebase System
Timebases: Main and up to four zoom traces simultaneously
Clock Accuracy: <=10 ppm
Interpolator Resolution: 5 ps
External Clock:
LT322/LT224: <=200 MHz, 50 Ohm, or 1 MOhm impedance
RollMode: <=500 kpts: 500 ms - 1000 s/div, 100 ks/s max; >=500 kpts: 1 s - 1000 s/div, 100 ks/s max
Triggering System
Modes: Normal, Auto, Single, and Stop
Sources: Any input channel, external, Ext/10 or line; slope, level, and coupling are unique to each source
(except line trigger).Coupling Modes: DC, AC, HF, HFREJ, LFREJ (reject frequency 50 kHz typ)
Pre-Trigger Recording: 0–100% of horizontal time scale
Post Trigger Delay: 0–10,000 divisions
Holdoff by Time or Events: Up to 20 s or from 1 to 99,999,999 events
Internal Trigger Range: ±5 div
Maximum Trigger Frequency: Up to 500 MHz with HF coupling
External Trigger Input: ±.5 V, ±5 V with Ext/10; max input same as input channels
Autosetup
Automatically sets timebase, trigger, and sensitivity to display a wide range of repetitive signals; vertical
find automatically sets sensitivity for the selected input signal.
Acqusition Systems
|
Model |
Bandwidth |
Channels |
Sample Rate |
Acquisition Memory |
|
LT224 |
200 MHz |
Four |
200 MS/s |
100 kpts/Ch |
Waverunner Triggers
|
Name |
Description |
Edge or SMART Trigger® |
|
Edge/Slope/Window/Line |
Triggers when signal meets slope and level condition. |
Edge |
|
Signal pulse width |
Triggers on glitches down to 2 ns. Width selectable from <2.5 ns to 20 s or on intermittent faults. |
SMART |
|
Signal interval |
Triggers on intervals selectable between 10 ns and 20 s. |
SMART |
|
State or edge qualified |
Triggers on input only after a defined state or edge occurred on another channel. Delay between sources is selectable by time or events. |
SMART |
|
Dropout |
Triggers if the input signal drops out for longer than selected time between 25 ns and 20 s. |
SMART |
|
Pattern* |
Triggers on logic combination of five inputs - CH1, CH2, CH3, CH4, and EXT trigger, where each source can be defined as High, Low, or Don't Care. |
SMART |
|
TV |
Triggers on line (up to 1500), NTSC, or nonstandard video, choice of fields**. |
SMART |
* LT364/L only
** 1, 2, 4, 8 fields for LT364/L; odd or even fields for all other models
Probes
Model PP006: 10:1, 10 MOhm with autodetect (one per channel)
Probe System: ProBus Intelligent Probe System supports differential amplifiers and active, high-voltage, current,
and differential probes.
Color Waveform Display
Type: Color 8.4" flat panel TFT-LCD with VGA, 640 x 480 resolution
Screen Saver: Display blanks after 10 minutes. Real Time Clock: Date, hours, minutes, and seconds displayed
with waveform
Number of Traces: Maximum eight on four channel models, six on two channel models; simultaneously display
channel, zoom, memory, and math traces
Grid Styles: Single, Dual, Quad, Octal, XY, Single+XY, Dual+XY; Full Screen gives enlarged view of each style.
Waveform Styles: Sample dots joined or dots only -- regular or bold
Analog Persistence Display
Analog and Color-Graded Persistence: Variable saturation levels; stores each trace’s persistence data in memory
Trace Display: Opaque or transparent overlap Zoom Expansion Traces
Zoom Expansion Traces
Style: Display up to four zoom traces Vertical Zoom: Up to 5x expansion, 50x with averaging
Vertical Zoom: Up to 5x expansion, 50x with averaging
Horizontal Zoom: Expand to 2 pts/div, magnify to 50,000x
Auto scroll: Automatically scan and display a captured signal
Rapid Signal Processing
Processor: 160 MHz PowerPC
Memory:
16 Mbytes: LT364, LT344, LT342, LT322, LT224
32 Mbytes: LT364L, LT344L, LT342L
Internal Waveform Memory
Waveform: M1, M2, M3, M4**
Zoom and Math: A, B, C, D
**Store full-length waveforms with 16 bits/data point.
Setup Storage
For front panel and instrument status: Four non-volatile memories and floppy drive are standard. PC card hard drive
and memory card are optional.
Math Tools
Simultaneously perform up to four math processing functions; traces can be chained together to perform math on math.
standard math tools:
Standard Math Tools:
|
average (summed to 4000 sweepts) |
|
difference |
|
enhanced resolution (to 11 bits vertical) |
|
envelope |
|
FFT of 50 kpoint waveforms |
|
floor |
|
identity |
|
negate |
|
product |
|
ratio |
|
reciprocal (invert) |
|
resample (deskew) |
|
rescale (with units) |
|
roof |
|
sin x/x |
|
sum |
Cursor Measurements
|
Type |
Symbol |
From |
To |
|
Relative time |
![]() |
first point on waveform |
any other point on waveform |
|
Relative voltage |
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select voltage level |
any other voltage level |
|
Absolute time |
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time and voltage relative to |
ground and trigger |
|
Absolute voltage |
![]() |
voltage |
ground |
Measure Tools
Automated Measurements: Display any five parameters together with their average, high, low, and standard deviations.
Standard Measure Tools:
|
amplitude |
duty cycle |
-overshoot |
|
area |
fall 90-10% |
peak-to-peak |
|
base |
fall 80-20% |
period |
|
cycle mean |
frequency |
phase |
|
cycle rms |
maximum |
rise 10-90% |
|
cycles |
mean |
rise 20-80% |
|
data |
median |
rms |
|
delay |
minimum |
top |
|
delta delay |
+overshoot |
width |
Pass/Fail
Test any five parameters against selectable thresholds. Limit testing is performed using masks created
on the scope or PC. Setup a pass or fail condition to initiate actions such as hardcopy output, save
waveformto memory, GPIB SRQ, or pulse out.
Extended Math and Measurements Option
Adds math and advanced measurements for general-purpose applications. Includes all
standard math and measurement tools, plus:
Extended Math Tools:
|
absolute value |
log (base 10) |
|
differentiate |
integrate |
|
exp (base e) |
square |
|
exp (base 10) |
square root |
|
log (base e) |
trend (datalog) |
Extended Measure Tools:
|
cycle medium |
fall @ level; % and volts |
|
cycle std. deviation |
first point |
|
delta time @ level; % and units |
last point |
|
delta time @ level from trigger |
number of points |
|
delta time from clock to data + (setup time) |
rise @ level; % and volts |
|
delta time from clock to data - (hold time) |
std. deviation |
|
duration |
|
Waveanalyzer Option (WAVA)
Includes the Extended Math and Measure Tools as well as expanded capabilities for performing FFTs,
averaging, histograms, and histogram parameters.
WaveAnalyzer Tools:
|
Histograms with 18 histogram parameters |
|
Summed averaging to one million sweeps |
|
Continuous weighted averaging |
|
FFT (up to 1 Mpoint waveforms) |
|
FFT power averaging |
|
FFT power density, real, and imaginary |
Other Application Solutions
Jitter and Timing Analysis (JTA), PowerMeasure System, Telecom Mask Testing
Interface
Remote Control: Full control via GPIB and RS-232-C (standard) or via Ethernet for all instrument controls
andinternal functions (optional).
Ethernet Port (Optional): 10 Base-T, TCP/IP Protocol
Floppy Drive: Internal, DOS-format, 3.5" high-density
PC Card Slot (Optional): Supports memory and hard drive cards.
External Monitor Port: 15-pin D-Type VGA-compatible, 640 x 480 RGB
Centronics Port: Parallel printer interface
Internal Graphics Printer (Optional): Provides hardcopy output in <10 seconds.
Outputs
Calibrator Signal: 500 Hz–1 MHz square wave, -1.0 to +1.0, test point, and ground lug on front panel
Control Signals: Choice of trigger ready, trigger out, or pass/fail status; TTL levels into 1 MOhm at rear
panel BNC (output resistance 300 Ohms ±10%)
General
Operating Conditions: Temperature 5–40°C; humidity 80% non-condensing at 40°C; altitude <=2,000 meters
Shock and Vibration: Conforms to MIL-PRF-28800F, Class 4
Power Requirements: 90-132 V AC and 180-250 V AC; 45-66 Hz; maximum power dissipation: 150
VA - 230 VA, depending on model
Certifications: CE, UL and cUL
Dimensions (HWD): 210mm x 350mm x 300mm; 8.3" x 13.8" x 11.8" (height excludes feet)
Weight: 8 kg; 18 lbs
Warranty and Calibration: Three years; calibration recommended yearly