UC1634 UC2634 UC3634 Phase Locked Frequency Controller FEATURES • • • • • • • • • Precision Phase Locked Frequency Control System Communication Logic for 2-Phase Motors Disable Input for Motor Inhibit Crystal Oscillator Programmable Reference Frequency Dividers Phase Detector with Absolute Frequency Steering Digital Lock Indicator Two High Current Op-Amps 5V Reference Output DESCRIPTION The UC1634 series of devices is optimized to provide precision phase locked frequency control for two phase DC brushless motors.
These devices include most of the features of the general purpose UC1633 Phase Locked Control family and also provide the out-of-phase commutation signals required for driving two...

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