Fernandez and Manandhar

400MHz Digital Phase Locked Loop

A project for ECE 547 “VLSI Design”
Fall Semester 2003 at the
Electrical Engineering Dept. of the
University of Maine

Designed by
Devon Fernandez and Sanjeev Manandhar

Computer chip

This chip
Contains two Digital Phase Locked Loops. One has an operating frequency of 400MHz generated by a vco based on differential logic, a fixed frequency divider of 64, and an xor phase detector. The other has an operating frequency of 25MHz, a programmable frequency divider, and a phase frequency detector.

The project report (PDF) contains a description of the project and details of the design and layout. A poster (PDF) depicting our project layout is also available.

May 2004