This is the 1000-1 Tuning Voltage-Controlled Filter Circuit Diagram. A standard dual integrator filter can be constructed using a few CA3080s. By varying LABC, the resonant frequency can be swept over a 1000:1 range. At IC1, three are
current-controlled integrators. At IC2, four are voltage followers that
serve to buffer the high-impedance outputs of the integrators. A third
CA3080 (IC5) is used to control the Q factor of the filter. The resonant
frequency of the filter is linearly proportional to /abcĂ‚· Hence, this
unit is very useful in producing electronic music. Two outputs are
produced: a low-pass and a bandpass response.
1000:1 Tuning Voltage-Controlled Filter Circuit Diagram
0 comments:
Post a Comment