AEDR-9920-100

AEDR-9920 3-Channel Reflective Optical Encoders

Broadcom AEDR-9920 3-Channel Reflective Optical Encoders offer selectable and programmable options, including three-channel digital differential A, B, and I output. The digital output option includes two-channel quadrature (AB) digital outputs for direction sensing and a third-channel index digital output. These encoders feature built-in pin-selectable interpolator for 1x, 2x, 4x, 8x, 16x, 32x, 64x, 128x, and 256x interpolation and SPI programmable interpolator from 1x to 512x. The AEDR-9920 encoders also feature built-in LED current regulation and a high encoding resolution of 225LPI (lines/inch) or 8.86LPmm (lines/mm). These TTL-compatible encoders allow the outputs to be interfaced with most signal processing circuitries.