TL074 - TL074A - TL074BTYPICAL APPLICATIONS (continued) POSITIVE FEEDBACK BANDPASS FILTER 16 k Ω 16 k Ω 22 0p F 220 pF 43 k Ω 43 k Ω 43 k Ω 30 k Ω 43 k Ω 30 k Ω Input - - 22 0p F 1/4 1/4 43 k Ω - 22 0p F - TL 07 4 TL 07 4 43 k Ω 1/4 1/4 TL 07 4 TL 07 4 Output B 1 .5 k Ω 1 .5 k Ω Ground Output A OUTPUT A OUTPUT B SECOND ORDER BANDPASS FILTERCASCADED BANDPASS FILTER fo = 100kHz; Q = 30; Gain = 16 fo = 100kHz; Q = 69; Gain = 16 9/11