Schematics and Circuits Index

A brand new different way to view the schematics.

This is just a list of old schematics, some with a BOM, mostly used as a reference design resource. NOTE: There is no instruction on how to build any of this stuff. You must use your own wits (or just Google it!).

Index Filters

1
Antenna Filters

Figure 1165 :


2
Butterworth Filters

1 kHz 4th Order Butterworth Filter

Figure 859 : 1 kHz 4th Order Butterworth Filter


3
Butterworth Filters

120kHz 4th Order Butterworth Filter

Figure 864 : 120kHz 4th Order Butterworth Filter


4
Butterworth Filters

20 kHz Butterworth Active Filter

Figure 874 : 20 kHz Butterworth Active Filter


5
Band-pass Filters

Active Band-pass Filter Circuit

Figure 899 : Active Band-pass Filter Circuit


6
CW Audio Filters

Active CW Audio Filter

Figure 900 : Active CW Audio Filter


7
High-pass Filters

Active High-pass Filter

Figure 901 : Active High-pass Filter


8
Low-pass Filters

Active Low-pass Filter

Figure 902 : Active Low-pass Filter


9
Notch Q

Adjustable Q Notch Filter

Figure 903 : Adjustable Q Notch Filter


10
Band-pass Filters

Band-pass Filter

Figure 925 : Band-pass Filter


11
Combination Filters

Combination Filter

Figure 934 : Combination Filter


12
Comb Filters

Digital Comb Filter

Figure 950 : Digital Comb Filter


13
Notch Q

High Q Notch Filter

Figure 976 : High Q Notch Filter


14
High-pass Filters

High-pass Active Filter

Figure 975 : High-pass Active Filter


15
High-pass Filters

High-pass Amplifier

Figure 979 : High-pass Amplifier


16
High-pass Filters

High-pass Filter

Figure 978 : High-pass Filter


17
Low-pass Filters

Low-pass Amplifier

Figure 988 : Low-pass Amplifier


18
Programmable Filters

Programmable Analog Filter

Figure 1022 : Programmable Analog Filter


19
Notch RC

RC Notch Filter

Figure 1034 : RC Notch Filter


20
Low-pass Filters

Sallen KEY Low-pass Filter

Figure 1053 : Sallen KEY Low-pass Filter


21
High-pass Filters

Sallen-KEY High-pass Filter

Figure 1054 : Sallen-KEY High-pass Filter


22
SAW Filters

SAW Filter Impedance Matching Preamplifier

Figure 1055 : SAW Filter Impedance Matching Preamplifier


23
Second-Order Voltage-Controlled

Second-Order Voltage-Controlled Filter

Figure 1057 : Second-Order Voltage-Controlled Filter


24
State Variable Filters

Single 3.3V Supply 4 Pole State Variable Filter

Figure 1066 : Single 3.3V Supply 4 Pole State Variable Filter


25
State Variable Filters

State Variable Filter

Figure 1067 : State Variable Filter


26
Band-pass Filters

Two OP-AMP Band-pass Filter

Figure 1080 : Two OP-AMP Band-pass Filter


27
Low-pass Filters

Voltage Coltrolled Low-pass Filter

Figure 1105 : Voltage Coltrolled Low-pass Filter


28
VSB

VSB Filter for LM2889

Figure 1106 : VSB Filter for LM2889


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