IBM 10SF 65nm 2.5v PLL

This PLL is designed for audio clock generation. The reference clock is 12MHz, 13.5MHz or 19.2MHz, which can be either from crystal OSC or from internal clock source. It supports 256*fs and 128*fs clock output, where fs is the audio system sample rate of 8k/11k/12k/16k/22k/24k/32kHz/44.1kHz/48kHz/192k. The IP integrates a phase frequency detector (PFD), a loop filter (LP), a voltage control oscillator (VCO), a current reference, two programmable dividers and other supportive circuits.