Browse Prior Art Database

LOCK INDICATOR CIRCUIT

IP.com Disclosure Number: IPCOM000006191D
Original Publication Date: 1991-Jul-01
Included in the Prior Art Database: 2001-Dec-12
Document File: 2 page(s) / 67K

Publishing Venue

Motorola

Related People

Authors:
Wayne Shepherd

Abstract

Once the lock range of a phase detector is exceeded, an A-C signal equal to the difference fre- quency is generated. A counter can be used to count the A-C signal which generates an output (unlock) once a specific value has been reached.