The ANLBPLL0100 is an integer-N PLL for frequency synthesis that can be used to create a low phase-noise local oscillator (LO) for applications operating in the L band (1 GHz – 2 GHz). The low phase noise results in ultra-low clock jitter for applications which require it. The frequency synthesizer consists of a clock receiver, phase-frequency detector, low-noise charge pump, active loop filter utilizing on-die and off-die components, multi-band LC VCO, and an LO output buffer. The frequency synthesizer uses a 9-bit programmable divider to support integer multiplication factors from 100 to 511.