JOURNAL OF ASTRONAUTIC METROLOGY AND MEASUREMENT ›› 2013, Vol. 33 ›› Issue (1): 39-42.doi: 10.12060/j.issn.1000-7202.2013.01.08

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Application of Digital-to-analog DAC1220 in the Disciplined Clock

SU Jian-feng1；YIN Dong-mei1   

  1. 1、National Space Science Center, Chinese Academy of Sciences, Beijing 100190
  • Online:2013-02-15 Published:2013-02-15

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Abstract: In GPS disciplined clock system,in order to calibrated the frequency of VCOCXO, It is necessary to transfer control digital calculated by CPU to corresponding anolog voltage.the paper discussed the principle and application of DAC1220 converter,and expatiates the relationship between the DA converter resolution and frequency calibration of disciplined clock.

Key words: Disciplined clock, D/A Converters, Conversion accuracy, DAC1220

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