Keysight Technologies 1GC1-4255 Integrated Circuit

Keysight Technologies 1GC1-4255 is a Fractional-N Divide Integrated Circuit (IC) described as a QFN-packaged device in the Keysight/Agilent 1GC1 family. It is intended for RF and microwave frequency synthesizers where precise, fractional division of a reference frequency is needed to generate accurate output frequencies. The Fractional-N approach enables non-integer division ratios, offering finer frequency resolution than fixed-integer dividers and helping tailor PLL performance in compact system designs. While model-specific specifications for 1GC1-4255 are not widely published, related 1GC1 devices illustrate programmable division functionality within a QFN package, reflecting the intended role of this family in RF front-end modules and test equipment. The combination of a fractional divider in a compact 1GC1-family package makes 1GC1-4255 suitable for applications requiring precise frequency stepping and integration in space-constrained assemblies.