MC12439 - HIGH FREQUENCY PLL CLOCK GENERATOR

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Motorola

Part number	MC12439
Manufacturer	Motorola
File Size	131.58 KB
Description	HIGH FREQUENCY PLL CLOCK GENERATOR
Datasheet	MC12439 Datasheet
Additional preview pages of the MC12439 datasheet.

The internal oscillator uses the external quartz crystal as the basis of its frequency reference.

The output of the reference oscillator is sent directly to the phase detector.

With a 16.66MHz crystal, this provides a reference frequency of 16.66MHz.

ill latch the information present on the M[6:0] and N[1:0] inputs into the M and N counters. When the P_LOAD signal is LOW the input latches will be transparent and any changes on the M[6:0] and N[1:0] inputs will affect the FOUT output pair. To use the serial port the S_CLOCK signal samples the information on.

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Published: Apr 26, 2005 |