ALTPLL (Phase-Locked Loop) IP Core User Guide

ID 683732
Date 6/16/2017
Document Table of Contents

Types of PLLs

The types of PLL supported by the IP core depend on the device family. Device families typically support one or two PLL types. For example, the Stratix® series supports two types of PLLs, and the Cyclone® series supports only one type. The two PLL types supported within a device family are identical in their analog portions and differ slightly in the digital portion, for example, more counters on one type than another.