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(Interpolation factors of 1X or 5X)

This ET2015 is a monolithic bipolar integrated circuit designed to facilitate increased resolution in optical encoder applications by converting the incoming sine and cosine signals to an interpolated quadrature digital output at 1 or 5 times the input frequency. In addition to processing the data channel information, the ET2015 provides a channel for the index signal which controls the gating of the index pulse relative to the 0° and 90° input waveforms. Width of the index pulse is either 90 or 180 electrical degrees of the interpolated pulse (pin selectable).