发明授权
US08633738B2 Slew-rate limited output driver with output-load sensing feedback loop
有权
具有输出负载感测反馈回路的压摆率限制输出驱动器
- 专利标题： Slew-rate limited output driver with output-load sensing feedback loop
- 专利标题（中）： 具有输出负载感测反馈回路的压摆率限制输出驱动器
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申请号： US13368870申请日： 2012-02-08
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公开(公告)号： US08633738B2公开(公告)日： 2014-01-21
- 发明人: Wilson J. Chen , Chiew-Guan Tan
- 申请人： Wilson J. Chen , Chiew-Guan Tan
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： US CA San Diego
- 代理商 Sam Talpalatsky; Nicholas J. Pauley; Joseph Agusta
- 主分类号： H03B1/00
- IPC分类号： H03B1/00
摘要：
Output driver feedback circuitry is configured to sense an amount of output capacitance of an output pad and to adjust the strength of the output driver accordingly. The feedback circuitry adjusts the output driver within a single cycle. A chain of delay reference signals is generated by representative capacitive loads that replicate a range of actual output loads. Adjustments to the output driver are based on a comparison of the delay reference signals with output of the output driver.
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