| 发明名称 | Analog signal current integrators with tunable peaking function | ||
| 摘要 | Analog signal current integrators are provided having tunable peaking functions. Analog signal current integrators with tunable peaking functions enable data rate dependent loss compensation for applications in high data rate receiver integrated circuits incorporating advanced equalization functions, such as decision-feedback equalizers. For instance, a current integrator circuit includes a current integrating amplifier circuit comprising an adjustable circuit element to tune a peaking response of the current integrator circuit, and a peaking control circuit to generate a control signal to adjust a value of the adjustable circuit element as a function of an operating condition of the current integrator circuit. The operating condition may be a specified data rate or a communication channel characteristic or both. The adjustable circuit element may be a degeneration capacitor or a bias current source. | ||
| 申请公布号 | US8964825(B2) | 申请公布日期 | 2015.02.24 |
| 申请号 | US201213399675 | 申请日期 | 2012.02.17 |
| 申请人 | International Business Machines Corporation | 发明人 | Beukema Troy J.;Bulzacchelli John F. |
| 分类号 | H03H7/30;H04B1/10 | 主分类号 | H03H7/30 |
| 代理机构 | Ryan, Mason & Lewis, LLP | 代理人 | Dougherty Anne V.;Ryan, Mason & Lewis, LLP |
| 主权项 | 1. A current integrator circuit, comprising: a current integrating amplifier circuit comprising an adjustable circuit element to tune a peaking response of the current integrator circuit, wherein the current integrating amplifier circuit is configured to integrate a current on an output capacitance during an integration period of operation of the current integrating amplifier circuit; and a peaking control circuit to generate a control signal to adjust a value of the adjustable circuit element as a function of an operating condition of the current integrator circuit. | ||
| 地址 | Armonk NY US | ||