UC3633 Datasheet | Unitrode

FEATURES - - - - - - - - Precision Phase Locked Frequency Control System DESCRIPTION The UC1633 family of integrated circuits was designed for use in phase locked frequency control loops. While optimized for precision speed control of DC motors, these devices are universal enough for most ap Crystal Oscillator plications that require phase locked control. A precise reference fre Programmable Reference Frequency quency can be generated using the device’s high frequency oscillator Dividers and programmable frequency dividers. The oscillator operates using a Phase Detector with Absolute Frequency broad range of crystals, or, can function as a buffer stage to an external frequency source. Steering Digital Lock Indicator Double Edge Option on the Frequency Feedback Sensing Amplifier Two High Current Op-Amps 5V Reference Output The phase detector on these integrated circuits pares the reference frequency with a frequency/phase feedback signal. In the case of a motor, feedback is obtained at...