Solid-State Electronic Circuits - Volume 4 by Maby Edward

Author:Maby, Edward
Language: eng
Format: epub
Tags: Electronics, Solid-State Devices
Publisher: Edward W. Maby
Published: 2014-08-08T04:00:00+00:00

13.5 Design a first-order active low-pass filter with a response of +18 dB in the dc limit and -18 dB at 25 kHz. Let C = 220 nF.

13.6 Design a first-order active high-pass filter with a response of +12 dB in the high-frequency limit and -20 dB at 1.2 kHz. Let C = 1 nF.

13.7 Design a first-order active low-pass filter with a response of +16 dB in the dc limit and -60∘ of phase shift at 6 kHz. Let C = 1 nF.

13.8 Consider the second-order low- and high-pass transfer functions of Eqs. 13.8 and 13.9. Find the angular frequency at which |H| is maximum in terms of ωo and Q. Specify any restrictions on Q.

13.9 Consider the second-order low- and high-pass transfer functions of Eqs. 13.8 and 13.9. Find the angular frequency at which |H| is -3 dB down from the low- and high-frequency limiting values in terms of ωo and Q.

13.10 An active filter is to be designed such that the maximum passband gain is 12 dB and the bandwidth is 80 kHz in relation to a 50-kHz center frequency. A maximum degree of passband “flatness” is desired.

(a)

Find K, ωo, and Q for a single second-order bandpass filter that satisfies the requirements.

(a)

Find K and ωo values for a cascade of first-order low- and high-pass filters that together satisfy the requirements.

(c)

Make an argument for the better design.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.