Wavetek 132 Especificações descarregar pdf (Página 57)

2c)

Q:

What

is

happening

at

the

output?

What

happens

as

the

sample

pulse

frequency

is

varied?

A:

The

output

is

unipolar.

Increasing

the

sample

frequency

creates

a

smoother

analog

output.

The

attached

plots

are

listed

below,

in

order:

Plotl

Plot

2

Plot

3

Plot

4

Plot

5

Plot

6

Plot

7

Plot

8

Plot

9

Input,

sample

pulse

and

sampled

output

at

Nyquist

rate

Input,

sample

pulse

and

sampled

output

below

Nyquist

rate

Input,

sample

pulse

and

sampled

output

above

Nyquist

rate

Input,

sample

pulse

and

sampled

output

and

LPF

output

Spectrum

of

5

kHz

sample

pulse

(volts)

Spectrum

of

5

kHz

sample

pulse

(dB)

Spectrum

of

sampled

signal

(dB)

Spectrum

of

1

kHz

input

Spectrum

of

sampled

signal

(volts)

Lab

2

Solutions

Page

5

47

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