| 发明名称 | Masking circuit and time-to-digital converter comprising the same | ||
| 摘要 | A circuit includes a reset circuit, a counter and a comparator. The reset circuit generates a reset signal based on a reference signal and a controlled signal. The reference signal and the controlled signal are to be sent to the TDC for detection of phase difference. The counter counts to a predetermined value associated with the reference signal and the controlled signal, and is reset to an initial value in response to the reset signal. The comparator compares a count from the counter and the predetermined value, and generates a mask signal when a count from the counter equals the predetermined value. The mask signal masks a portion of pulses of the controlled signal from entering the TDC. | ||
| 申请公布号 | US9632486(B2) | 申请公布日期 | 2017.04.25 |
| 申请号 | US201615014905 | 申请日期 | 2016.02.03 |
| 申请人 | TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. | 发明人 | Tsai Tsung-Hsien |
| 分类号 | G04F10/00;H03L7/085 | 主分类号 | G04F10/00 |
| 代理机构 | WPAT, P.C., Intellectual Property Attorneys | 代理人 | WPAT, P.C., Intellectual Property Attorneys ;King Anthony |
| 主权项 | 1. A masking circuit for a time-to-digital converter (TDC), the masking circuit comprising: a reset circuit configured to generate a reset signal based on a reference signal and a controlled signal, the reference signal and the controlled signal to be sent to the TDC for detection of phase difference; a counter configured to count to a predetermined value associated with the reference signal and the controlled signal, and configured to be reset to an initial value in response to the reset signal; and a comparator configured to compare a count from the counter and the predetermined value, and to generate a masking signal when a count from the counter equals the predetermined value, the masking signal masking a portion of pulses of the controlled signal from entering the TDC. | ||
| 地址 | Hsinchu TW | ||