FREQUENCY SPECIAL ELEVATION FOR AWERAGING RESISTOR CIRCUIT OF VARIABLENESS SPECIAL RESISTANCE

摘要

A resistor averaging circuit is provided to adjust an averaging resistor value according to an input frequency by obtaining an optimal resistance according to the input frequency and then changing the optimal resistance. A resistor averaging circuit receives a pre-amplifier load resistance(R0) and an output voltage of a pre-amplifier stage. An averaging resistor(R1) is series-connected to the resistor averaging circuit, which outputs an averaged voltage through a BOTTOM terminal. An interpolation block(2) is arranged to be adjacent to the averaging resistor. MOS(Metal Oxide Semiconductor) transistors are series-connected in the interpolation block. The averaging resistor outputs 2^(n-1) optimal resistor values according to an input frequency. Two averaging resistors are series-connected to form one averaging resistor.