公开(公告)号：US20160065220A1

公开(公告)日：2016-03-03

申请号：US14474091

申请日：2014-08-30

Applicant: STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Vikas RANA ,  Ganesh RAJ R

IPC: H03L1/00 ,  H03K3/03

CPC classification number: H03L1/00 ,  H03K3/011 ,  H03K3/0315 ,  H03K3/0322 ,  H03K3/354 ,  H03L1/022 ,  H03L7/0812 ,  H03L7/0891 ,  H03L7/0895 ,  H03L7/093 ,  H03L7/0995 ,  H03L7/0997 ,  H03L7/148 ,  H03L7/18

Abstract: A clock signal generation circuit configured to generate the clock signal having a frequency that is maintained across variations in a number of operating conditions, such as changes in supply voltage, temperature and processing time. In an embodiment, the frequency spread of the generated clock signal of a PVT-compensated CMOS ring oscillator is configured to compensate for variations in the supply voltage, as well as for variations in process and temperature via a process and temperature compensation circuit. The PVT-compensated CMOS ring oscillator includes a regulated voltage supply circuit to generate a supply voltage that is resistant to variations due to changes in the overall supply voltage.

Abstract translation: 时钟信号生成电路，被配置为生成具有在诸如电源电压，温度和处理时间的变化的操作条件的数量的变化中保持的频率的时钟信号。 在一个实施例中，PVT补偿的CMOS环形振荡器的所产生的时钟信号的频率扩展被配置为补偿电源电压的变化，以及通过处理和温度补偿电路对工艺和温度的变化。 PVT补偿的CMOS环形振荡器包括一个稳压电源，用于产生一个电源电压，该电源电压抵抗由于整个电源电压的变化引起的变化。