Stepping motors were used in conventional office automation equipment including printer, scanner, etc. However, recently, the mainstream is DC motors and encoder modules. This product has been developed to output the movement using the light source and encoder slit by 2-phase digital signal, detect the position and control the device. High accuracy has been realized by signal equation using multi-sectional PD method.
MM1728XB can detect positions and control the device by using the encoder slit of 150LPI. MM1744XB can detect positions and control device by 300LPI allowing twofold resolution by using the encoder slit of 150LPI with combination of PD shape and IC internal circuit (Patent pending).

1.	Accuracy enhanced by multi-sectional PD method (MM1728XB · MM1744XB)
2.	2 phase digital output (phase A, B) (MM1728XB · MM1744XB)
3.	Detection by two fold resolution (MM1744XB)

Recommended operational temperature	25ºC (±25ºC)
Recommended operating voltage	2.8V min. / 5.5V max.
Consumption current	2.0mA min. / 3.0mA typ. / 5.0mA max.
High-level output voltage	Vcc - 0.4V min.
Low-level output voltage	0.4 max.
Duty ratio	50% (±15%)
Phase difference	90deg (±30deg)
Maximum answer frequency	40 kHz min.
External dimensions	8.0×5.0×1.7mm (including terminals)
Package	CMP-10C