Self-tuned, continuous-time active filter

Details Self-tuned, continuous-time active filter Self-tuned, continuous-time active filter

1995-10-03

1997-03-04

Mai, Tan V.

Boots, shoes, and leggings

36472401, G06G 702, G06F 1531

Patent

active

056086652

ABSTRACT:
A self-tuned, continuous-time active filter receives a differential input signal and generates a differential output signal. The filter consists of cascaded first-order and second-order tunable filter sections. All filter sections are tuned: some filter sections are indirectly-tuned using the tuning signals from directly-tuned filter sections to control pole frequencies and Q-factors. The filter is equipped with at least one directly-tuned section that consists of a pair of identical first- or second-order sections that simultaneously receive a differential reference signal and the differential input signal. Each directly-tuned section generates a low-pass output signal and may generate a band-pass output signal.

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