Clock divider that divides frequency of input signal by fractional number
Mixed-Signal Blockset / PLL / Building Blocks
The Fractional Clock Divider with Accumulator block divides the frequency of the input signal by a tunable fractional value (N.FF). When compared to the Single Modulus Prescaler block, the Fractional Clock Divider with Accumulator block helps to achieve a narrow channel spacing that can be less than the reference frequency of a phase-locked loop (PLL) system.
[1] Best, Roland E. Phase-Locked Loop. New York, NY: Tata McGraw-Hill Companies Inc., 2003.
Dual Modulus Prescaler | Fractional Clock Divider with DSM | PFD | Single Modulus Prescaler | VCO