JP4795805B2 - 差動信号制御回路 - Google Patents
差動信号制御回路 Download PDFInfo
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- JP4795805B2 JP4795805B2 JP2006028135A JP2006028135A JP4795805B2 JP 4795805 B2 JP4795805 B2 JP 4795805B2 JP 2006028135 A JP2006028135 A JP 2006028135A JP 2006028135 A JP2006028135 A JP 2006028135A JP 4795805 B2 JP4795805 B2 JP 4795805B2
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- Prior art keywords
- signal
- output
- differential
- differential input
- delay
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Description
Claims (2)
- 各々差動入力信号を入力して差動出力信号を出力する2つのプッシュプル回路を具備した差動信号制御回路であって、
前記差動出力信号の出力レベルが反転する際に、前記プッシュプル回路のそれぞれをハイインピーダンス状態に一時保持する保持手段を有し、
前記保持手段は、
一方の差動入力信号を遅延する第1の遅延回路と、
他方の差動入力信号を遅延する第2の遅延回路と、
前記差動入力信号と前記第1,第2の遅延回路の出力を入力して前記プッシュプル回路のそれぞれを制御するための制御信号を生成する条件判定回路とを備えており、
前記条件判定回路は、
前記差動入力信号が同時に変化した場合と、
前記差動入力信号の一方の信号がローレベルからハイレベルに変化したときに他方の信号がハイレベルの場合、および、
前記差動入力信号の一方の信号がハイレベルからローレベルに変化したときに他方の信号がローレベルの場合に、
前記一方の信号のレベルが変化した時点から前記遅延時間の間だけ前記プッシュプル回路のそれぞれをハイインピーダンスにするための前記制御信号を生成して、該制御信号を前記プッシュプル回路へ出力することを特徴とする差動信号制御回路。 - 請求項1に記載の差動信号制御回路であって、
前記第1,第2の遅延回路の遅延時間は、前記差動入力信号の最大位相ズレ時間より長くしたことを特徴とする差動信号制御回路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006028135A JP4795805B2 (ja) | 2006-02-06 | 2006-02-06 | 差動信号制御回路 |
Applications Claiming Priority (1)
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JP2006028135A JP4795805B2 (ja) | 2006-02-06 | 2006-02-06 | 差動信号制御回路 |
Publications (2)
Publication Number | Publication Date |
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JP2007208881A JP2007208881A (ja) | 2007-08-16 |
JP4795805B2 true JP4795805B2 (ja) | 2011-10-19 |
Family
ID=38487897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006028135A Expired - Fee Related JP4795805B2 (ja) | 2006-02-06 | 2006-02-06 | 差動信号制御回路 |
Country Status (1)
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JP (1) | JP4795805B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4628434B2 (ja) | 2008-02-06 | 2011-02-09 | 株式会社リコー | 発振周波数制御回路、その発振周波数制御回路を有するdc−dcコンバータ及び半導体装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06252723A (ja) * | 1993-02-26 | 1994-09-09 | Nippondenso Co Ltd | 負荷駆動回路 |
JP2000031810A (ja) * | 1998-07-10 | 2000-01-28 | Fujitsu Ltd | ドライバ回路 |
JP2002152030A (ja) * | 2000-11-09 | 2002-05-24 | Hitachi Ltd | 半導体集積回路装置 |
JP4627928B2 (ja) * | 2001-06-28 | 2011-02-09 | ルネサスエレクトロニクス株式会社 | 半導体集積回路 |
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2006
- 2006-02-06 JP JP2006028135A patent/JP4795805B2/ja not_active Expired - Fee Related
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JP2007208881A (ja) | 2007-08-16 |
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