FX002

The FX002 is a single-chip device to extract single periodic signals from very high random-noise environments.

Using patented autocorrelation techniques the FX002 will enhance the input signal's signal-to-noise ratio by as much as 8.5dB and provide a digital output signal centred at four times (x4) the input frequency.

The amplitude FX002 of non-periodic components of the signal is substantially reduced. The patented autocorrelator compares the incoming signal to itself; the more elements of the waveform that are seen as periodic, the higher the energy at the microcircuit output.

With a random noise input the output will swing rail-to-rail at random (peak-limited). The input/output signal delay is fixed by the choice of clock frequency and the length of the internal register. The FX002 will operate at supply voltages of between 2.5 volts and 5.5 volts and with Xtal/clock frequencies from 20kHz to 2.5MHz. Using various Xtal/clock inputs the device can be set to accept input signal frequencies, in bands, from 17.0Hz to 13.0kHz.

Two uncommited clock outputs of FX002 are available to supply 'divided-down' Xtal/clock frequencies for use in external and peripheral functions.

This low-power signal processing FX002 is available in 16-pin cerdip dual-in-line (DIL) and plastic small outline (S.O.I.C.) surface mount packages.