Agilent Technologies 54501A Spezifikationen PDF herunterladen (Seite 133)

Edge Definition

Both rising

and

faling edges are defincd

as transitional

edges that must

cross tlree

thresholds.

A rising

edge

must cross the lower threshold

in a

positive

direaion

(defrniag

rising edge),

cross the

mid

threshold

(any

number

s1655ings, both

positive

and negative

are

permissible)

and

then cross the

upper threshold

without

any

crossing of the lower

threshold.

A fa[ing edge must

cross the

upper threshold in a negative

direction,

cross the

mid

threshold

(any

number

of times),

and then

cross the lower

tbreshold

without

crossing the upper threshold.

Note

Most time measurcments arc

made

based on the

position

of the

fint

crossingof

the middle threshold

AlgOfithm

Foilowing are the definitions that

all measurements

are

based

on:

Definitions

delay There

are

three

types

of delay measurement:

jitter

standard

user-defined

Jitter occurs only

under

the following

circumstances:

standard/user-defined

key is

set to standard

two

delay

parameters

are

the same

display mode

envelope

HP 5rt510A

Front-Panel

Reference

Algorithms

A-3

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