Acquisition system

Acquisition modes

Sample

Acquire sampled values

Peak detect

Captures narrow glitches as narrow as 100 ps (2 GHz and 1 GHz models) or 200 ps (500 MHz and 350 MHz models) at all real-

time sampling rates

Averaging

From 2 to 10,000 waveforms included in average

Envelope

Min-Max envelope reflecting Peak Detect data over multiple acquisitions

Hi-Res

Real-time boxcar averaging reduces random noise and increases resolution

Roll mode

Scrolls sequential waveform points across the display in a right-to-left rolling motion at sweep speeds slower than 50 ms/div. Up to

20 MS/s with a maximum record length of 10 M

FastAcq optimizes the instrument for analysis of dynamic signals and capture of infrequent events

Maximum FastAcq waveform

capture rate

>250,000 wfms/s on all 4 channels simultaneously

Waveform database

Accumulate waveform database providing three-dimensional array of amplitude, time, and counts

Acquisition memory divided into segments; maximum trigger rate >310,000 waveforms per second. Time of arrival recorded with

each event. Frame finder tool helps to visually identify transients

Automated Search and Mark

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. Event table summarizes all found events. All events are

time stamped in reference to trigger position. Stop acquisitions when an event is found

Waveform analysis

Waveform measurements

Cursors

Waveform and Screen

Automatic measurements

53, of which 8 can be displayed on-screen at any one time. Measurements include: Period, Frequency, Delay, Rise Time, Fall

Time, Positive Duty Cycle, Negative Duty Cycle, Positive Width, Negative Width, Burst Width, Phase, Positive Overshoot, Negative

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

Eye-pattern measurements

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

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

Waveform histogram

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 histogram

measurements

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

μ +1sigma, μ +2sigma, μ +3sigma

Waveform processing/math

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, Log10, Log e, Abs, Ceiling, Floor, Min, Max, Sin, Cos, Tan,

ASin, ACos, ATan, Sinh, Cosh, Tanh

Relational

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

Frequency domain functions

(FFT)

Spectral Magnitude and Phase, Real and Imaginary Spectra

FFT vertical units

Magnitude: Linear, dB, dBm

Phase: Degrees, radians, group delay

Datasheet

16 www.tektronix.com