公开(公告)号：US20160365863A1

公开(公告)日：2016-12-15

申请号：US15248816

申请日：2016-08-26

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David S. FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/087 ,  G06F17/50 ,  H03L7/099

CPC classification number: H03L7/087 ,  G06F17/5045 ,  H03L7/0991 ,  H03L7/0995 ,  H03L7/0997 ,  H03L2207/06 ,  H03L2207/50

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

公开(公告)号：US20180048321A1

公开(公告)日：2018-02-15

申请号：US15789035

申请日：2017-10-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/087 ,  H03L7/099 ,  G06F17/50

CPC classification number: H03L7/087 ,  G06F17/5045 ,  H03L7/0991 ,  H03L7/0995 ,  H03L7/0997 ,  H03L2207/06 ,  H03L2207/50 ,  H05K999/99

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

公开(公告)号：US20160365864A1

公开(公告)日：2016-12-15

申请号：US15248822

申请日：2016-08-26

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David S. FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/087 ,  G06F17/50 ,  H03L7/099

CPC classification number: H03L7/087 ,  G06F17/5045 ,  H03L7/0991 ,  H03L7/0995 ,  H03L7/0997 ,  H03L2207/06 ,  H03L2207/50

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

公开(公告)号：US20180083640A1

公开(公告)日：2018-03-22

申请号：US15820701

申请日：2017-11-22

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/087 ,  H03L7/099 ,  G06F17/50

CPC classification number: H03L7/087 ,  G06F17/5045 ,  H03L7/0991 ,  H03L7/0995 ,  H03L7/0997 ,  H03L2207/06 ,  H03L2207/50

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

公开(公告)号：US20160365862A1

公开(公告)日：2016-12-15

申请号：US15248800

申请日：2016-08-26

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David S. FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/087 ,  G06F17/50 ,  H03L7/099

CPC classification number: H03L7/087 ,  G06F17/5045 ,  H03L7/0991 ,  H03L7/0995 ,  H03L7/0997 ,  H03L2207/06 ,  H03L2207/50

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

公开(公告)号：US20180316357A1

公开(公告)日：2018-11-01

申请号：US16013236

申请日：2018-06-20

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/087 ,  H03L7/099 ,  G06F17/50

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

公开(公告)号：US20160365861A1

公开(公告)日：2016-12-15

申请号：US15248792

申请日：2016-08-26

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David S. FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/087 ,  G06F17/50 ,  H03L7/099

CPC classification number: H03L7/087 ,  G06F17/5045 ,  H03L7/0991 ,  H03L7/0995 ,  H03L7/0997 ,  H03L2207/06 ,  H03L2207/50

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

公开(公告)号：US20150288370A1

公开(公告)日：2015-10-08

申请号：US14245374

申请日：2014-04-04

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jingdong DENG ,  Chung S. HO ,  David FLYE ,  Zhenrong JIN ,  Ramana M. MALLADI

IPC: H03L7/099 ,  G06F17/50 ,  H03L7/087

CPC classification number: H03L7/087 ,  G06F17/5045 ,  H03L7/0991 ,  H03L7/0995 ,  H03L7/0997 ,  H03L2207/06 ,  H03L2207/50

Abstract: A phase locked loop circuit is disclosed. The phase locked loop circuit includes a ring oscillator. The phase locked loop circuit also includes a digital path including a digital phase detector. The phase locked loop circuit further includes an analog path including a linear phase detector. Additionally, the phase locked loop circuit includes a feedback path connecting an output of the ring oscillator to an input of the digital path and an input of the analog path. The digital path and the analog path are parallel paths. The digital path provides a digital tuning signal the ring oscillator that digitally controls a frequency of the ring oscillator. The analog path provides an analog tuning signal the ring oscillator that continuously controls the frequency of the ring oscillator.

Abstract translation: 公开了一种锁相环电路。 锁相环电路包括环形振荡器。 锁相环电路还包括包括数字相位检测器的数字路径。 锁相环电路还包括包括线性相位检测器的模拟路径。 此外，锁相环电路包括将环形振荡器的输出连接到数字路径的输入和模拟路径的输入的反馈路径。 数字路径和模拟路径是并行路径。 数字通道提供数字调谐信号，环形振荡器数字控制环形振荡器的频率。 模拟通道提供模拟调谐信号，环形振荡器可以连续控制环形振荡器的频率。