| 发明名称 | Delta-sigma modulator having transconductor network for dynamically tuning loop filter coefficients | ||
| 摘要 | A dynamically tunable transconductor includes a voltage-to-current converter stage for generating a current signal based on a voltage signal; and a current scaling stage for scaling the current signal by a scaling factor to achieve a particular transconductance. Current scaling stage includes a coarse tune mechanism having an associated coarse tune step and a fine tune mechanism having an associated fine tune step, where the scaling factor is a ratio of the coarse tune step to the fine tune step. A delta-sigma modulator can implement the transconductor to generate loop filter coefficients by dynamically tuning the transconductance to achieve a particular resistance. | ||
| 申请公布号 | US9590590(B2) | 申请公布日期 | 2017.03.07 |
| 申请号 | US201414537836 | 申请日期 | 2014.11.10 |
| 申请人 | Analog Devices Global | 发明人 | Li Hongxing;Kearney Niall Kevin;O'Donoghue Keith |
| 分类号 | H03M1/10;H03H11/04;H03M3/00 | 主分类号 | H03M1/10 |
| 代理机构 | Patent Capital Group | 代理人 | Patent Capital Group |
| 主权项 | 1. A transconductor having a dynamically tunable transconductance, the transconductor comprising: a voltage-to-current converter stage configured to generate a current signal based on a voltage signal; and a current scaling stage configured to scale the current signal by a scaling factor to achieve a particular transconductance, wherein the current scaling stage includes a coarse tune mechanism having an associated coarse tune step and a fine tune mechanism having an associated fine tune step, wherein the scaling factor is a ratio of the coarse tune step to the fine tune step. | ||
| 地址 | Hamilton BM | ||