AEDR-872x 3-Channel Reflective Incremental Encoder (Analog Output) Data Sheet Description Features The AEDR-872x encoder is a three-channel optical encoder Analog Output option: Two-channel differential analog with two channels differential analog and a third digital output and with a digital index output index output. The encoder is designed to operate over -20 Surface mount leadless package: 3.95 mm (L) 3.4 mm C to 85 C temperature range and so is suitable for both (W) 0.9562 mm (H) commercial and industrial end applications. Operating voltage of 5.0 V supply The encoder houses an LED light source and photo- Built-in LED current regulation, and so no external detecting circuitry in a single package. The small size of biasing resistor is needed 3.95 mm (L) 3.4 mm (W) 0.9562 mm (H) allows it to -20 C to 85 C absolute operating temperature be used even in a wide range of miniature commercial applications in which size and space is a primary concern. High encoding resolution: 318 (lines/inch, LPI) The AEDR-872x encoder, with two channels differential Applications analog outputs (Sin, /Sin, Cos, /Cos) can be interfaced Ideal for high volume applications: directly with most of the external interpolators available. As such, the encoder provides great design-in flexibility Closed-loop stepper motors and easy integration into existing systems. Miniature motors Printers and copiers Card readers Scanners Projectors Portable medical equipment Optometric equipment Consumer and industrial product applicationsOutput Waveform Analog Option P P XB XA S S S S X1 X2 X3 X4 CH B/ CH A CH B V 12 V 34 X X V CC 2 V PP V 56 V 78 X X P A P B S S S S 1 2 3 4 CH I V CC Codewheel rotation movement (anti- clockwise) V OFFSET V CC V PP 2 V P V M 0 V Test Parameter Definitions Parameter Symbol Description Analog Peak-to-Peak V The peak-to-peak signal magnitude in V of the analog signal PP Analog Osetff V The offset in mV from the midpoint of the analog peak-to-peak signal to OFFSET the zero voltage point Analog Peak/Valley Voltage V , V , V , V The value in V of the peak or valley of the analog signal (that is, one-sided PA PB MA MB reading) Analog Peak-to-Peak Voltage V , V The absolute difference between V and V of channel A or B PPA PPB P M Analog Crosspoint Voltage V , V , V , V The intersections in V of channel A analog waveform with that of either X12 X34 X56 X78 channel B or its component Analog Oset Vff oltage V The offset in mV from the midpoint of the analog peak-to-peak signal to OFFSETA, OFFSETB 2.5 V 2