Waveform analysis

Search and Mark Events

Use Advanced Search and Mark to automatically mark events and document waveforms. Search positive/negative slopes or both,

glitches, runts, pulse widths, transition rate, setup and hold, timeout, windows, or find any logic or state pattern, up to 8 different

event types on any of the 4 analog channels. Search DDR Read or Write bursts with Opt. DDRA.

When an event of interest is found with a hardware trigger, other similar events can be found using "Mark All Trigger Events in

Record" in the Pinpoint trigger control windows.

The Event table summarizes all found events. All events are time stamped in reference to trigger position. You can choose to stop

acquisitions when an event is found.

Waveform measurements

Cursors

Waveform and Screen

Automatic measurements

53, of which 8 can be displayed on-screen at any one time

Measurement Statistics

Mean, Minimum, Maximum, Standard Deviation

Reference Levels

User-definable reference levels for automatic measurements can be specified in either percent or units

Gating

Isolate the specific occurrence within an acquisition to take measurements on, using either screen or waveform cursors

Amplitude related

Amplitude, High, Low, Maximum, Minimum, Peak-to-Peak, Mean, Cycle Mean, RMS, Cycle RMS, Positive Overshoot, Negative

Overshoot

Time related

Rise Time, Fall Time, Positive Width, Negative Width, Positive Duty Cycle, Negative Duty Cycle, Period, Frequency, Delay

Combination

Area, Cycle Area, Phase, Burst Width

Histogram related

Waveform Count, Hits in Box, Peak Hits, Median, Maximum, Minimum, Peak-to-Peak, Mean (μ), Standard Deviation (sigma), μ

+1sigma, μ+2sigma, μ+3sigma

Eye-pattern related

Extinction Ratio (absolute, %, dB), Eye Height, Eye Width, Eye Top, Eye Base, Crossing %, Jitter (p-p, RMS, 6sigma), Noise (p-p,

RMS), Signal/Noise Ratio, Cycle Distortion, Q-Factor

Waveform Histograms

A waveform histogram provides an array of data values representing the total number of hits inside a user-defined region of the

display. A waveform histogram is both a visual graph of the hit distribution and a numeric array of values that can be measured.

Sources – Channel 1, Channel 2, Channel 3, Channel 4, Ref 1, Ref 2, Ref 3, Ref 4, Math 1, Math 2, Math 3, Math 4

Types – Vertical, Horizontal

Waveform processing/math

Number of Math Waveforms

Up to 4

Arithmetic

Add, Subtract, Multiply, Divide Waveforms and Scalars

Algebraic expressions

Define extensive algebraic expressions including waveforms, scalars, user-adjustable variables, and results of parametric

measurements. Perform math on math using complex equations. e.g. (Integral (CH1 – Mean(CH1)) × 1.414 × VAR1)

Math functions

Average, Invert, Integrate, Differentiate, Square Root, Exponential, Log 10, Log e, Abs, Ceiling, Floor, Min, Max, Sin, Cos, Tan,

ASin, ACos, ATan, Sinh, Cosh, Tanh

Relational

Boolean result of comparison >, <, ≥, ≤, ==, !=

Frequency domain functions

Spectral Magnitude and Phase, Real and Imaginary Spectra

FFT vertical units

Magnitude: Linear, dB, dBm Phase: Degrees, radians, group delay

FFT window functions

Rectangular, Hamming, Hanning, Kaiser-Bessel, Blackman-Harris, Gaussian, Flattop2, Tek Exponential

Waveform definition

As an arbitrary math expression

Filtering function

User-definable filters. Users specify a file containing the coefficients of the filter. Several example filter files are provided

Customized Functions using

Math Plug-in Interface

An interface is provided to allow users to create their own custom math functions in MATLAB or Visual Studio

Mask function

Generates a Waveform Database pixel map from a sample waveform. Sample count can be defined

Datasheet

16 www.tek.com/DPO7000