ET2110 Overview
Description
This ET2110 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. Please refer to the Timing Diagram.
Key Features
- Interpolation factor pin selectable (1X/10X)
- Index gating pin selectable (90/180 electrical degrees of interpolated pulse)
- Leading edge of gated index pulse occurs at 270 electrical degrees of analog input cycle, regardless of interpolation factor selected
- Interfaces directly with ET2010 Analog Signal Processor and ET7272 Line Driver
- Single supply operation
- Handles Sine/Cosine inputs from DC to 125KHz
- Sine/Cosine input voltage range 400mVpp to 4Vpp on 2.5VDC reference
- Outputs are NPN Collector with 4K pull-up; sink up to 4mA external load
- Outputs TTL and CMOS compatible
