Active Filter Design Specifications I

•  V_cc = + 12 V dc
• V_ee = - 12 V dc
• No. of Poles = 4
• Type: Low-pass
• f_o = 400 kHz
• V_in = 8 V _p-p
• Z_in greater than 22 kW
• Load = 4.7 kOhms
• |A_v| greater than or equal to 1.

Objectives I

1. Show all design calculations
2. Build and test a Butterworth filter and prove that you met all the specified parameters.
3. Provide a frequency response plot of the filter output
4. Repeat the above steps for Chebyshev filter (1 dB)

 Design Circuit of 4^th Order Butterworth Low Pass Filter

Figure 13

Design Circuit of 4^th Order Chebyshev Low Pass Filter ( 1 dB )

 Figure 14

 Active Filter Design Specifications II

• V_cc = + 12 V dc
• V_ee = - 12 V dc
• No. of Poles = 4
• Type: High-pass
• f_o = 600 kHz
• V_in = 8 V _p-p
• Z_in greater than 22 kW
• Load = 4.7 kOhms
• |A_v| greater than or equal to 1.

 Objectives I

1. Show all design calculations
2. Build and test a Butterworth filter and prove that you met all the specified parameters.
3. Provide a frequency response plot of the filter output
4. Repeat the above steps for a Chebyshev filter (0.1 dB)

 Design Circuit of 3^rd Order Butterworth High Pass Filter

Figure 15

 Design Circuit of 3^rd Order Chebyshev High Pass Filter ( 0.1 dB )

Figure 16

Last Modified: 4/16/98 by korman@seas.gwu.edu.