PROGRAMMABLE_PLL_SYNTHESIZE_MULTI_PLIE

Published:2009/7/4 22:14:00 Author:May | From:SeekIC

Uses programmable timer/counter A 1 as vco for generating frequencies both aboveand below that of square-wave reference Phase-Locked output frequency is not direct multiple of reference frequency. 2240 can lock on programmable multiple or on subharmonic reference. For values shown, phase-locked loop is locked through common frequency submultiple of 10 Hz, to give sampling rate of 10 Hz for reference input.-W. G. Jung, IC Timer Cookbook, Howard W. Sams, Indianapolis, IN, 1977, p 220-224.



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