Title:
TIME INTERLEAVED DIGITAL-TO-ANALOG CONVERTER SYSTEM AND METHOD OF CORRECTING PRE-PROCESSING FILTER THEREFOR
Document Type and Number:
Japanese Patent JP2020025257
Kind Code:
A
Abstract:
To achieve a more exact output signal of a TIDAC system.SOLUTION: Calibrating the pre-processing filter of time interleaved digital to analog converter (TIDAC) system includes converting a discrete waveform at a first DAC to a first analog signal and at a second DAC to a second analog signal and combining the first and second analog signals into a combined signal. An analog-to-digital converter (ADC) converts the combined signal to a digital signal to determine an actual frequency response of the TIDAC system. A desired frequency response of the TIDAC system is received and a pre-processing filter is generated for the first DAC and the second DAC on the basis of the actual frequency response of the TIDAC system and the desired frequency response of the TIDAC system.SELECTED DRAWING: Figure 1
Inventors:
KAREN HOVAKIMYAN
Application Number:
JP2019135629A
Publication Date:
February 13, 2020
Filing Date:
July 23, 2019
Export Citation:
Assignee:
TEKTRONIX INC
International Classes:
H03M1/10; H03L7/00; H03M1/66
Domestic Patent References:
| JP2007150640A | 2007-06-14 |
Foreign References:
| US9007250B1 | 2015-04-14 | |||
| US6473011B1 | 2002-10-29 | |||
| US20170077945A1 | 2017-03-16 |
Attorney, Agent or Firm:
Yamaguchi International Patent Office