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Title: Digitally programmable signal generator and method

Abstract

A digitally programmable waveform generator for generating completely arbitrary digital or analog waveforms from very low frequencies to frequencies in the gigasample per second range. A memory array with multiple parallel outputs is addressed; then the parallel output data is latched into buffer storage from which it is serially multiplexed out at a data rate many times faster than the access time of the memory array itself. While data is being multiplexed out serially, the memory array is accessed with the next required address and presents its data to the buffer storage before the serial multiplexing of the last group of data is completed, allowing this new data to then be latched into the buffer storage for smooth continuous serial data output. In a preferred implementation, a plurality of these serial data outputs are paralleled to form the input to a digital to analog converter, providing a programmable analog output.

Inventors:
 [1];  [2]
  1. (Oakland, CA)
  2. (San Leandro, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
867181
Patent Number(s):
4881190
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
digitally; programmable; signal; generator; method; waveform; generating; completely; arbitrary; digital; analog; waveforms; frequencies; gigasample; range; memory; array; multiple; parallel; outputs; addressed; output; data; latched; buffer; storage; serially; multiplexed; rate; times; faster; access; time; accessed; required; address; serial; multiplexing; completed; allowing; smooth; continuous; preferred; implementation; plurality; paralleled; form; input; converter; providing; memory array; data output; output data; signal generator; waveform generator; serial data; times faster; parallel output; multiple parallel; analog output; data rate; digitally programmable; analog converter; programmable waveform; /708/

Citation Formats

Priatko, Gordon J., and Kaskey, Jeffrey A. Digitally programmable signal generator and method. United States: N. p., 1989. Web.
Priatko, Gordon J., & Kaskey, Jeffrey A. Digitally programmable signal generator and method. United States.
Priatko, Gordon J., and Kaskey, Jeffrey A. Sun . "Digitally programmable signal generator and method". United States. https://www.osti.gov/servlets/purl/867181.
@article{osti_867181,
title = {Digitally programmable signal generator and method},
author = {Priatko, Gordon J. and Kaskey, Jeffrey A.},
abstractNote = {A digitally programmable waveform generator for generating completely arbitrary digital or analog waveforms from very low frequencies to frequencies in the gigasample per second range. A memory array with multiple parallel outputs is addressed; then the parallel output data is latched into buffer storage from which it is serially multiplexed out at a data rate many times faster than the access time of the memory array itself. While data is being multiplexed out serially, the memory array is accessed with the next required address and presents its data to the buffer storage before the serial multiplexing of the last group of data is completed, allowing this new data to then be latched into the buffer storage for smooth continuous serial data output. In a preferred implementation, a plurality of these serial data outputs are paralleled to form the input to a digital to analog converter, providing a programmable analog output.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

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