发明公开
- 专利标题: A stray pulse eliminating device for a digital-to-analog converter
- 专利标题(中): 杂散脉冲消除装置为DA转换器。
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申请号: EP84201130.6申请日: 1984-08-01
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公开(公告)号: EP0136739A2公开(公告)日: 1985-04-10
- 发明人: Akerlund, Mats Peter , Strömbäck, Ture Johannes
- 申请人: Philips Norden AB , Philips Electronics N.V.
- 申请人地址: Tegeluddsvägen 1 115 84 Stockholm SE
- 专利权人: Philips Norden AB,Philips Electronics N.V.
- 当前专利权人: Philips Norden AB,Philips Electronics N.V.
- 当前专利权人地址: Tegeluddsvägen 1 115 84 Stockholm SE
- 代理机构: De Jongh, Cornelis Dominicus
- 优先权: SE8304290 19830805
- 主分类号: H03M1/06
- IPC分类号: H03M1/06 ; H03M1/66
摘要:
The invention relates to a device for eliminating stray pulses occuring on the output of a digital-to-analogue converter DA. The pulses may be caused by, for example, insufficient synchronism in the input data bits and may be predicted in time. According to the invention an inductor L is arranged between the output of the digital-to-analogue converter and a following circuit F, for example a deflecting amplifier for random scan displays, and a switch S2 is arranged between the said output and ground which switch when a pulse is predicted to occur shortcircuits the output of the digital-to-analogue converter to ground. Hereby an eliminating device of simple and cheap construction is obtained operating at high frequencies.
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