Editing Dual-modulus prescaler (section)

{{Short description|Electronic circuit}}
{{Unreferenced|date=December 2009}}
A '''dual modulus [[prescaler]]''' is an [[electronic circuit]] used in high-[[frequency]] [[frequency synthesizer|synthesizer]] designs to overcome the problem of generating narrowly spaced frequencies that are nevertheless too high to be passed directly through the feedback loop of the system.  The modulus of a prescaler is its frequency divisor. A dual-modulus prescaler has two separate frequency divisors, usually M and M+1.