公开(公告)号：US10097200B1

公开(公告)日：2018-10-09

申请号：US15593981

申请日：2017-05-12

Applicant: Analog Devices Global

Inventor： Miguel Usach Merino ,  Michael Hennessy ,  Anthony Evan O'Shaughnessy ,  Claire Croke

IPC: H03M1/10 ,  H03M3/00 ,  H03M1/12 ,  H03M1/00 ,  H04L7/00 ,  H04B14/04 ,  H04L25/03

Abstract: A device having a sample-rate converter that may be programmed to generate samples at different rates is synchronized to an external synchronization pulse by temporarily changing the sample rate to a temporary sample rate and then changing the sample rate back to the original sample rate. Synchronization in a reduced amount of time is achieved by determining the interval between the synchronization pulse and one of the output samples and determining a processing time of the device for generating the output samples at a new rate. The system calculates a temporary sample rate based on these calculations that tends to reduce an amount of time to achieve synchronization.