发明名称 |
AUTOMATIC CALIBRATION IN HIGH-SPEED SERIAL INTERFACE RECEIVER CIRCUITRY |
摘要 |
Circuitry for receiving a serial data signal (e.g., a high-speed serial data signal) includes adjustable equalizer circuitry for producing an equalized version of the serial data signal. The equalizer circuitry may include controllably variable DC gain and controllably variable AC gain. The circuitry may further include eye height and eye width monitor circuitry for respectively producing first and second output signals indicative of the height and width of the eye of the equalized version. The first output signal may be used in control of the DC gain of the equalizer circuitry, and the second output signal may be used in control of the AC gain of the equalizer circuitry. |
申请公布号 |
EP2332304(A4) |
申请公布日期 |
2014.07.30 |
申请号 |
EP20090818103 |
申请日期 |
2009.09.29 |
申请人 |
ALTERA CORPORATION |
发明人 |
SHUMARAYEV, SERGEY;WONG, WILSON |
分类号 |
H04L27/01;H04B3/04;H04L1/20;H04L25/03 |
主分类号 |
H04L27/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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