strobe_frequency_modulation_subject_6.163.pdf

7/31/2019 Strobe_Frequency_Modulation_Subject_6.163.pdf

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0 2 4 6 8 10 12Voltage (V)

0

1

2

Frequency(KHz)

Control Voltage vs. Output Frequency of CD4046


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Higer frequen cy signals become a liased a nd look

like a lower frequen cy signal


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Bandlimited signa l centered a t th e

carrier frequency

X(f)

-Fc Fc

X(f)

Aliased signa ls

-Fc Fc

requ ires idea l filter t o recover

Y(f)

Sam pled exactly at t he Nyquist rat e


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strobe_frequency_modulation_subject_6.163.pdf

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