Agilent Technologies 54501A Spécifications télécharger pdf (Page 144)

HP

54510A

Front-Panel

Reference

Bandwidth Limit

(HF

Reject):

Provides low

pass

filter

with

a

-

3

dB

point

at

approximately

30

MHz for

both triggering and sipal

display. Can

be selected

for

each

vertical

input individually.

LF

Reject Provides

high

pass

frlter with

a

-

3

dB

point

at approximately

450Hzfor

triggering

and

vertical signal. Can be selected

for each vertical

input

individuatly.

ac

Coupling:

Provides

high-pass

filter with

a

-

3 dB

point

at

approximately

90

Hz

for both triggering and signal display.

Can be

selected

for each

vertical input

individually.

ECI./TIL

Prcsets:

Vertical deflection

factor, coupling,

offset,

and trigger

level

can

be

preset independently

on

both

channels

for ECL and

TTL

levels.

Eltective

Resolution:

The maximum sample rate and the number of bits

in

an oscilloscope's

digitizer

are too often used

for

comparing

oscilloscopes.

These specifications,

however, do

not

describe

performance under

dynamic

signal

conditions.

Effective

Resolution

is a figure of

merit

that

describes

the digitizing

oscilloscope's

performance

under

dynamic

conditions,

and

is measured

using the sinewave curve

fit

test.

This method

considers:

o

Quantization

error

o Non-linearities(including

preamp

and A/D)

o

System

noise

o Frequency ofinput

signal

All

of these

affect

the effective

resolution

of the

instrument, Some

manufacturers specify

effective

bits using half-scale

sinewaves.

While

the

effective

bits

performance using

half-scale

testing is overstated

when

compared

to

full-scale testing,

Hewlett-Packard publishes

both

sets of

numbers

for

the 54510A

so that,

when

comparing

effective bits

performance between

digitizing

oscilloscopes,

a

fair

comparison

can

be

made.

General

Information

B_7

1 2 ... 139 140 141 142 143 144 145 146 147 148 149 ... 160 161

Commentaires sur ces manuels

Pas de commentaire