ET2024 - ETIC

ET2024 INTERPOLATION DEVICE

This ET2024 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 2 or 4 times the input frequency. Please refer to the Timing Diagram. .

Features

• Interpolation factor pin selectable (2X/4X)
• 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 DESCR.